/* ===================================
   CBAI Bibliography Platform - Main Styles
   ================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;

    /* Grays */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

    /* Spacing */
    --container-max-width: 1200px;
    --container-padding: 1rem;
    --section-padding: 4rem 0;
    --section-padding-sm: 2rem 0;

    /* Borders & Radius */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-color: var(--gray-200);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition: all 0.2s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.3s ease;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* ===================================
   BASE STYLES
   ================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ===================================
   TYPOGRAPHY
   ================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5em;
    color: var(--gray-900);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1em;
    color: var(--gray-600);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

strong, b {
    font-weight: 600;
    color: var(--gray-800);
}

code {
    font-family: var(--font-mono);
    background-color: var(--gray-100);
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    font-size: 0.875em;
}

/* ===================================
   LAYOUT COMPONENTS
   ================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--section-padding);
}

.section-sm {
    padding: var(--section-padding-sm);
}

/* Grid System */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* ===================================
   NAVIGATION
   ================================== */

.navbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 1024px) {
    .navbar {
        position: relative;
    }

    .nav-brand .logo-image {
        height: 35px;
        max-height: 35px;
    }

    .nav-brand .logo {
        font-size: 1rem;
    }
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem var(--container-padding);
}

.nav-brand .brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.nav-brand .logo-image {
    height: 40px;
    width: auto;
    max-height: 40px;
    object-fit: contain;
}

.nav-brand i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-600);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--gray-600);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

.nav-link i {
    font-size: 0.875rem;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-toggle i.fa-chevron-down {
    font-size: 0.75rem;
    transition: var(--transition);
}

.dropdown.active .dropdown-toggle i.fa-chevron-down {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    list-style: none;
    padding: 0.5rem 0;
    margin: 0;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu-right {
    left: auto;
    right: 0;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background-color: var(--gray-50);
    color: var(--primary-color);
}

.dropdown-menu .divider {
    height: 1px;
    background: var(--border-color);
    margin: 0.5rem 0;
}

/* Special Navigation Links */
.register-link {
    background-color: var(--primary-color);
    color: #ffffff !important;
}

.register-link:hover {
    background-color: var(--primary-hover);
    color: #ffffff !important;
}

.upgrade-link {
    background-color: var(--accent-color);
    color: #ffffff !important;
}

.upgrade-link:hover {
    background-color: #d97706;
    color: #ffffff !important;
}

/* Mobile Navigation */
@media (max-width: 1024px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #ffffff;
        border-top: 1px solid var(--border-color);
        padding: 1rem 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all 0.3s ease;
        z-index: 999;
        max-height: 0;
        overflow: hidden;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        max-height: 500px;
    }

    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0 var(--container-padding);
    }

    .nav-link {
        padding: 1rem;
        border-radius: 0;
        justify-content: flex-start;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--gray-50);
        margin-left: 1rem;
        border-radius: var(--border-radius);
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }
}

/* Mobile Search Bar */
.mobile-search-bar {
    background: var(--gray-50);
    border-top: 1px solid var(--border-color);
    padding: 1rem 0;
    display: none;
}

@media (max-width: 768px) {
    .mobile-search-bar {
        display: block;
    }
}

/* ===================================
   HERO SECTION
   ================================== */

.hero {
    background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 100%);
    padding: 6rem 0 4rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-title .highlight {
    color: var(--primary-color);
    position: relative;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 3rem;
    line-height: 1.6;
}

/* Hero Search */
.hero-search {
    margin-bottom: 3rem;
}

.search-form {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-box {
    position: relative;
    display: flex;
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.search-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    outline: none;
    font-size: 1rem;
    background: transparent;
}

.search-input::placeholder {
    color: var(--gray-400);
}

.search-btn {
    padding: 1rem 1.5rem;
    background: var(--primary-color);
    color: #ffffff;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    background: var(--primary-hover);
}

.search-btn i {
    font-size: 1.125rem;
}

/* Search Suggestions */
.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    display: none;
    max-height: 300px;
    overflow-y: auto;
}

.suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--gray-100);
}

.suggestion-item:hover {
    background-color: var(--gray-50);
}

.suggestion-item:last-child {
    border-bottom: none;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
    max-width: 500px;
    margin: 0 auto;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.5rem;
}

/* Responsive Hero */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 0 3rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: 2rem;
    }

    .hero-stats {
        gap: 3rem;
        max-width: 400px;
    }

    .stat-number {
        font-size: 2rem;
    }
}

/* ===================================
   SECTIONS & CONTENT
   ================================== */

.section-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    /* margin-bottom: 2rem; */
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.view-all-link:hover {
    color: var(--primary-hover);
    gap: 0.75rem;
}

/* Featured Section */
.featured-section {
    padding: 5rem 0;
    background: #ffffff;
}

.featured-section .section-header {
    margin-bottom: 4rem;
}

/* Types Section */
.types-section {
    padding: 4rem 0;
    background: var(--gray-50);
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.type-card {
    background: #ffffff;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.type-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.type-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.type-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.type-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.type-count {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.type-description {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

/* Quick Access Section */
.quick-access-section {
    padding: 4rem 0;
    background: #ffffff;
}

.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.quick-access-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1.5rem;
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    text-decoration: none;
    color: var(--gray-700);
}

.quick-access-card:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
    color: var(--primary-color);
}

.quick-access-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.quick-access-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: inherit;
}

.quick-access-card p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
    line-height: 1.4;
}

.quick-access-card:hover p {
    color: var(--gray-700);
}

/* CTA Section */
.cta-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: #ffffff;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ===================================
   PUBLICATION CARDS
   ================================== */

.publications-grid {
    display: grid;
    gap: 2rem;
}

.featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    max-width: 1200px;
    margin: 0 auto;
}

.publication-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
}

.publication-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.publication-header {
    /* display: flex; */
    /* justify-content: space-between;
    align-items: center; */
    margin-bottom: 1rem;
}

.publication-type {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    font-weight: 500;
}

.access-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.access-badge:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.access-badge i {
    font-size: 0.75rem;
}

.access-badge.access-free {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
}

.access-badge.access-registered {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #ffffff;
}

.access-badge.access-premium {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #ffffff;
}

.publication-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--gray-900);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.publication-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.publication-meta > div {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--gray-600);
}

.publication-meta i {
    color: var(--gray-400);
    font-size: 0.75rem;
}

.publication-abstract {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

/* No Content State */
.no-content {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-500);
    grid-column: 1 / -1;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    border: 2px dashed var(--gray-200);
}

.no-content i {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: var(--gray-400);
}

.no-content h3 {
    color: var(--gray-700);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.no-content p {
    margin-bottom: 2rem;
    font-size: 1.125rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   BUTTONS
   ================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: 2px solid;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    min-height: 44px;
}

.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.btn-outline.white {
    border-color: #ffffff;
    color: #ffffff;
}

.btn-outline.white:hover {
    background: #ffffff;
    color: var(--primary-color);
    border-color: #ffffff;
}

.btn-secondary {
    background: var(--gray-100);
    border-color: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-200);
    color: var(--gray-800);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 36px;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    min-height: 52px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ===================================
   FORMS
   ================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: #ffffff;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-help {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Input Groups */
.input-group {
    display: flex;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.input-group input {
    flex: 1;
    border: none;
    padding: 0.75rem 1rem;
    outline: none;
}

.input-group .btn {
    border: none;
    border-radius: 0;
    min-height: auto;
}

/* ===================================
   FOOTER
   ================================== */

.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h3,
.footer-section h4 {
    color: #ffffff;
    margin-bottom: 1rem;
}

.footer-brand h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
}

.footer-brand i {
    color: var(--primary-color);
}

.footer-brand p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    color: var(--gray-400);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #ffffff;
}

/* Newsletter */
.newsletter-section {
    background: var(--gray-800);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 3rem;
    text-align: center;
}

.newsletter-content h4 {
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.newsletter-content p {
    margin-bottom: 1.5rem;
}

.newsletter-form .input-group {
    max-width: 400px;
    margin: 0 auto;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright p {
    margin: 0;
    font-size: 0.875rem;
}

.footer-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
}

.powered-by strong {
    color: var(--primary-color);
}

.version {
    background: var(--gray-800);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
    color: var(--gray-400);
}

/* ===================================
   RESPONSIVE DESIGN
   ================================== */

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --section-padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .types-grid,
    .quick-access-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }

    .featured-grid {
        grid-template-columns: 1fr;
    }

    .publication-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .types-grid,
    .quick-access-grid {
        grid-template-columns: 1fr;
    }

    .publication-card {
        padding: 1rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ===================================
   UTILITIES
   ================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-weight-normal { font-weight: 400; }
.font-weight-medium { font-weight: 500; }
.font-weight-semibold { font-weight: 600; }
.font-weight-bold { font-weight: 700; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-error { color: var(--error-color); }
.text-muted { color: var(--gray-500); }

.bg-primary { background-color: var(--primary-color); }
.bg-light { background-color: var(--gray-50); }
.bg-white { background-color: #ffffff; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

@media (max-width: 768px) {
    .d-md-none { display: none; }
    .d-md-block { display: block; }
}

@media (max-width: 480px) {
    .d-sm-none { display: none; }
    .d-sm-block { display: block; }
}

/* ===================================
   ANIMATIONS
   ================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-slide-in {
    animation: slideIn 0.5s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --gray-300: #666666;
        --gray-400: #555555;
        --gray-500: #444444;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ===================================
   AUTH PAGES STYLES
   ================================== */

.auth-page {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--gray-50) 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.auth-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
}

.auth-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 480px;
    justify-self: center;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.auth-header h1 i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.auth-header p {
    color: var(--gray-600);
    font-size: 1rem;
}


.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

/* Auth form styling */
.auth-form .form-group {
    margin-bottom: 1.5rem;
}

.auth-form .form-group:last-of-type {
    margin-bottom: 2rem;
}

/* Auth form input groups with icons */
.auth-form .input-group {
    position: relative;
    display: block;
}

.auth-form .input-group i {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.875rem;
    z-index: 2;
    pointer-events: none;
}

.auth-form .input-group input,
.auth-form .input-group select,
.auth-form .input-group textarea {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
    position: relative;
    z-index: 1;
}

/* Special padding for password fields with toggle button */
.auth-form .input-group input[type="password"] {
    padding-right: 3rem;
}

/* Generic input group (for other forms like newsletter) */
.input-group:not(.auth-form .input-group) {
    position: relative;
}

.input-group:not(.auth-form .input-group) i {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.875rem;
    z-index: 2;
    pointer-events: none;
}

.input-group:not(.auth-form .input-group) input,
.input-group:not(.auth-form .input-group) select,
.input-group:not(.auth-form .input-group) textarea {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
    position: relative;
    z-index: 1;
}

.auth-form .input-group input:focus,
.auth-form .input-group select:focus,
.auth-form .input-group textarea:focus,
.input-group:not(.auth-form .input-group) input:focus,
.input-group:not(.auth-form .input-group) select:focus,
.input-group:not(.auth-form .input-group) textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.auth-form .toggle-password,
.toggle-password {
    position: absolute;
    right: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0.25rem;
    z-index: 3;
    transition: color 0.2s ease;
}

.auth-form .toggle-password:hover,
.toggle-password:hover {
    color: var(--primary-color);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* Removed old checkbox-container styles - now handled in enhanced submit form section */

.forgot-link {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-decoration: none;
}

.forgot-link:hover {
    text-decoration: underline;
}

.auth-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    color: var(--gray-600);
}

.auth-footer a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-benefits {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.auth-benefits h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}



.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.benefit-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.benefit-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.benefit-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.5;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-help {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

.form-terms {
    margin: 1.5rem 0;
}

.form-terms .checkbox-container {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-200);
}

.form-terms .checkbox-container span:not(.checkmark) {
    line-height: 1.5;
    color: var(--gray-700);
}

.form-terms .checkbox-container a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.form-terms .checkbox-container a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.registration-stats {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.registration-stats h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
}

.stat {
    padding: 0.5rem;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
}

/* ===================================
   SUBMIT PAGE STYLES
   ================================== */

.submit-page {
    padding: var(--section-padding);
}

.submit-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.submit-form-container {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.submit-form {
    max-width: none;
}

.form-section {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.form-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-section h3 i {
    color: var(--primary-color);
}

/* Enhanced Form Groups */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input:invalid {
    border-color: var(--error-color);
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.form-help i {
    margin-right: 0.25rem;
    color: var(--primary-color);
}

/* Author Management Styles */
.author-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.2s ease;
}

.author-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.author-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-header h4 {
    margin: 0;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.author-fields {
    padding: 1.5rem;
}

.author-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 2px solid var(--primary-color);
    border-top: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.form-group {
    position: relative;
}

.suggestions-header {
    padding: 0.75rem 1rem;
    background: var(--primary-light);
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.85rem;
    border-bottom: 1px solid var(--gray-200);
}

.author-suggestion {
    padding: 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--gray-100);
    transition: background 0.2s ease;
}

.author-suggestion:hover {
    background: var(--gray-50);
}

.author-suggestion:last-child {
    border-bottom: none;
}

.author-name {
    font-weight: 600;
    color: var(--gray-100);
    margin-bottom: 0.25rem;
}

.author-details {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.author-details span {
    display: inline-block;
    margin-right: 1rem;
}

.no-suggestions {
    padding: 1rem;
    text-align: center;
    color: var(--gray-500);
    font-style: italic;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 9999;
    min-width: 300px;
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification-success {
    border-left-color: var(--success-color);
    color: var(--success-color);
}

.notification-error {
    border-left-color: var(--error-color);
    color: var(--error-color);
}

.notification i {
    font-size: 1.25rem;
}

.conditional-fields {
    margin-top: 1rem;
}

.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.file-upload-area:hover,
.file-upload-area.drag-over {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.file-upload-content i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.file-upload-content p {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.file-upload-content small {
    color: var(--gray-500);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.submit-sidebar {

}

.sidebar-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.sidebar-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.guidelines-list {
    list-style: none;

}

.guidelines-list li {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.5;
    padding-left: 1.5rem;
    position: relative;
}

.guidelines-list li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.format-list {

}

.format-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.format-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.format-item div strong {
    display: block;
    font-weight: 600;
    color: var(--gray-900);
}

.format-item div span {
    font-size: 0.75rem;
    color: var(--gray-600);
}

.contact-info p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.contact-info i {
    color: var(--primary-color);
    width: 1rem;
    margin-right: 0.5rem;
}

/* ===================================
   DASHBOARD STYLES
   ================================== */

.dashboard-page {
    padding: var(--section-padding);
}

.welcome-alert {
    margin-bottom: 2rem;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 4rem;
    height: 4rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.user-details h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.user-role {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
}

.user-affiliation {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
}

.dashboard-actions {
    display: flex;
    gap: 1rem;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary-light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.stat-content p {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.dashboard-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.dashboard-section {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

.view-all {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.view-all:hover {
    text-decoration: underline;
}

.activity-list,
.publications-list,
.submissions-list {

}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
}

.activity-item:hover {
    background: var(--gray-50);
}

.activity-icon {
    width: 2rem;
    height: 2rem;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.activity-content p {
    color: var(--gray-700);
    margin-bottom: 0.25rem;
}

.activity-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.activity-content a:hover {
    text-decoration: underline;
}

.activity-date {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.publication-item,
.submission-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
}

.publication-item:hover,
.submission-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.publication-info h4,
.submission-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.publication-info h4 a {
    color: inherit;
    text-decoration: none;
}

.publication-info h4 a:hover {
    color: var(--primary-color);
}

.publication-meta,
.submission-meta {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.saved-date,
.submission-date {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.publication-actions {
    display: flex;
    gap: 0.5rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-pending {
    background: var(--warning-color);
    color: white;
}

.status-approved {
    background: var(--success-color);
    color: white;
}

.status-rejected {
    background: var(--error-color);
    color: white;
}

.dashboard-sidebar {

}

.settings-list {

}

.settings-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
}

.settings-item:hover {
    background: var(--gray-50);
    color: var(--primary-color);
}

.settings-item i {
    width: 1rem;
    font-size: 0.875rem;
}

.stats-list {

}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.tips-list {

}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.tip-item i {
    color: var(--primary-color);
    font-size: 1rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.tip-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.4;
}

.no-activity,
.no-content {
    text-align: center;
    padding: 2rem;
    color: var(--gray-500);
}

.no-activity i,
.no-content i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--gray-300);
}

/* ===================================
   RESPONSIVE DESIGN
   ================================== */

@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
        max-width: 600px;
    }

    .submit-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .dashboard-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .dashboard-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .dashboard-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
    }

    .publication-item,
    .submission-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .publication-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

@media (max-width: 640px) {
    .auth-card {
        padding: 1.5rem;
    }

    .submit-form-container,
    .sidebar-card,
    .dashboard-section {
        padding: 1.5rem;
    }

    .dashboard-header {
        padding: 1.5rem;
    }

    .user-info {
        flex-direction: column;
        text-align: center;
    }

    .dashboard-actions {
        width: 100%;
        justify-content: center;
    }
}

/* ===================================
   LOGIN REQUIRED PROMPT STYLES
   ================================== */

.login-required-prompt {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: 2rem 0;
}

.prompt-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 3rem;
    max-width: 500px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.prompt-icon {
    width: 5rem;
    height: 5rem;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.prompt-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.prompt-card h2 {
    color: var(--gray-900);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.prompt-card p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.prompt-benefits {
    background: var(--gray-50);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    text-align: left;
}

.prompt-benefits h3 {
    color: var(--gray-900);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.prompt-benefits ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.prompt-benefits li {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.prompt-benefits li i {
    color: var(--success-color);
    margin-right: 0.75rem;
    font-size: 0.875rem;
}

.prompt-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

/* ===================================
   LEGAL PAGES (Privacy Policy & Terms)
   ================================== */

.legal-page {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
    background: var(--gray-50);
}

.legal-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.legal-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.legal-header h1 i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.legal-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    font-style: italic;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.legal-section {
    margin-bottom: 3rem;
}

.legal-section:last-child {
    margin-bottom: 2rem;
}

.legal-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.legal-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 1.5rem 0 1rem 0;
}

.legal-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-700);
    margin: 1rem 0 0.5rem 0;
}

.legal-section p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.legal-section ul {
    margin: 1rem 0 1.5rem 0;
    padding-left: 1.5rem;
}

.legal-section li {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.legal-section strong {
    color: var(--gray-900);
    font-weight: 600;
}

.legal-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.legal-section a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    padding: 2rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-200);
}

.contact-method h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-method h4 i {
    color: var(--primary-color);
}

.contact-method p {
    font-size: 0.95rem;
    color: var(--gray-700);
    margin: 0;
    line-height: 1.5;
}

.legal-footer {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--primary-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.legal-footer p {
    font-size: 1rem;
    color: var(--gray-800);
    margin: 0;
    font-weight: 500;
}

@media (max-width: 768px) {
    .legal-content {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }

    .legal-header h1 {
        font-size: 2rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .prompt-card {
        padding: 2rem;
        margin: 0 1rem;
    }

    .prompt-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .prompt-actions .btn {
        width: 100%;
    }
}

/* ===================================
   SEARCH PAGE STYLES
   ================================== */

.search-page {
    min-height: calc(100vh - 140px);
    background: var(--gray-50);
    padding: 2rem 0;
}

.search-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.search-header h1 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.search-header h1 i {
    margin-right: 1rem;
    color: var(--accent-color);
}

.search-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
    margin: 0;
}

/* Enhanced Search Form */
.search-section {
    margin-bottom: 2rem;
}

.search-form.enhanced {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
}

.search-row {
    margin-bottom: 2rem;
}

.search-form.enhanced .search-box {
    max-width: none;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-200);
}

.search-form.enhanced .search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-form.enhanced .search-input {
    font-size: 1.125rem;
    padding: 1rem 1.5rem;
}

.search-form.enhanced .search-btn {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
}

/* Search Filters */
.search-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    border-top: 1px solid var(--gray-200);
    padding-top: 2rem;
    margin-top: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-group select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: white;
    font-size: 1rem;
    color: var(--gray-700);
    transition: all 0.2s ease;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Results Section */
.results-section {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.search-info {
    padding: 2rem;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.search-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.search-summary h3 {
    color: var(--gray-900);
    margin: 0;
    font-size: 1.5rem;
}

.search-meta {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.result-count {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.125rem;
}

.page-info {
    color: var(--gray-600);
    font-size: 1rem;
}

/* Active Filters */
.active-filters {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-label {
    color: var(--gray-700);
    font-weight: 600;
    font-size: 0.875rem;
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
}

.filter-remove {
    color: var(--primary-color);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.filter-remove:hover {
    opacity: 1;
}

.clear-filters {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.clear-filters:hover {
    color: var(--primary-color);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-600);
}

.no-results i {
    font-size: 4rem;
    color: var(--gray-400);
    margin-bottom: 1.5rem;
}

.no-results h3 {
    color: var(--gray-700);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.no-results p {
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.search-suggestions {
    background: var(--gray-50);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 500px;
    margin: 0 auto;
    text-align: left;
}

.search-suggestions h4 {
    color: var(--gray-700);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.search-suggestions ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.search-suggestions li {
    padding: 0.5rem 0;
    color: var(--gray-600);
    position: relative;
    padding-left: 1.5rem;
}

.search-suggestions li:before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Search Results Grid */
.publications-grid.search-results {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem;
}

.publication-card.search-result {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.publication-card.search-result:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.search-result .publication-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-100);
}

.search-result .publication-title {
    margin: 0 0 1rem 0;
    font-size: 1.375rem;
    line-height: 1.4;
}

.search-result .publication-title a {
    color: var(--gray-900);
    text-decoration: none;
    transition: color 0.2s ease;
}

.search-result .publication-title a:hover {
    color: var(--primary-color);
}

.search-result .publication-meta {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-result .publication-type {
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
}

.search-result .publication-year {
    color: var(--gray-600);
    font-weight: 500;
}

.search-result .access-level {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Author Management Styles */
.author-entry {
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--gray-50);
    transition: all 0.2s ease;
}

.author-entry:hover {
    border-color: var(--primary-color);
    background: white;
}

.author-fields .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.author-fields .form-row:last-child {
    grid-template-columns: 1fr auto;
    align-items: end;
}

.author-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 0.5rem;
}

.btn-icon {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
}

.btn-icon:hover {
    background: var(--danger-dark);
    transform: scale(1.05);
}

.btn-icon i {
    font-size: 0.875rem;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

/* Enhanced Checkbox Styles */
.checkbox-container {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0.75rem;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.95rem;
    user-select: none;
    transition: all 0.2s ease;
    min-height: 3rem;
}

.checkbox-container:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.checkbox-container input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkbox-container .checkmark {
    position: relative;
    display: inline-block;
    height: 1.25rem;
    width: 1.25rem;
    background-color: white;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    margin-right: 0.75rem;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.checkbox-container:hover .checkmark {
    border-color: var(--primary-color);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-container .checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 4px;
    top: 1px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

/* Category text styling */
.checkbox-container span:not(.checkmark) {
    flex: 1;
    font-weight: 500;
    color: var(--gray-700);
}

/* Form Enhancement */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.form-help {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
    display: block;
}

/* Responsive Design for Author Management */
@media (max-width: 768px) {
    .author-fields .form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .author-fields .form-row:last-child {
        grid-template-columns: 1fr auto;
    }

    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 0.5rem;
    }
}

/* Access Level Styles */
.access-level {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: capitalize;
}

.access-level.access-public {
    color: var(--success-color);
}

.access-level.access-registered {
    color: var(--warning-color);
}

.access-level.access-premium {
    color: var(--accent-color);
}

.search-result .publication-details p {
    margin: 0.75rem 0;
    color: var(--gray-700);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.search-result .publication-details i {
    color: var(--gray-500);
    margin-top: 0.25rem;
    flex-shrink: 0;
    width: 16px;
}

.search-result .publication-abstract {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 4px solid var(--primary-color);
}

.search-result .publication-abstract p {
    margin: 0;
    color: var(--gray-700);
    line-height: 1.6;
}

.search-result .publication-keywords {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.keyword-tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
}

.search-result .publication-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--gray-100);
}

/* Pagination */
.pagination-section {
    padding: 2rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.pagination a,
.pagination span {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.pagination a:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination .current {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination .disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .disabled:hover {
    background: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

/* Responsive Design */
@media (max-width: 768px) {
    .search-page {
        padding: 1rem 0;
    }

    .search-header {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .search-header h1 {
        font-size: 2rem;
    }

    .search-form.enhanced {
        padding: 1.5rem;
    }

    .search-filters {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .search-summary {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .search-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .active-filters {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .search-result .publication-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .pagination {
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .pagination a,
    .pagination span {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .search-header {
        padding: 1rem;
    }

    .search-header h1 {
        font-size: 1.75rem;
    }

    .search-form.enhanced {
        padding: 1rem;
    }

    .search-form.enhanced .search-input {
        font-size: 1rem;
        padding: 0.875rem 1rem;
    }

    .search-form.enhanced .search-btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .search-info {
        padding: 1.5rem;
    }

    .publications-grid.search-results {
        padding: 1rem;
        gap: 1rem;
    }

    .publication-card.search-result {
        padding: 1.5rem;
    }
}

/* Quick Access Section for Search Page */
.quick-access {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-top: 2rem;
}

.quick-access h2 {
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.quick-access h3 {
    color: var(--gray-700);
    margin: 2rem 0 1rem 0;
    font-size: 1.25rem;
}

.popular-searches {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.search-suggestion {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.search-suggestion:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.category-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: all 0.2s ease;
}

.category-card:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.category-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .popular-searches {
        flex-direction: column;
        gap: 0.75rem;
    }

    .search-suggestion {
        text-align: center;
    }

    .category-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .category-card {
        padding: 1rem;
    }
}

/* ===================================
   BROWSE PAGE STYLES - SIDEBAR LAYOUT
   ================================== */

.browse-page {
    min-height: calc(100vh - 140px);
    background: var(--gray-50);
    padding: 2rem 0;
}

.browse-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.browse-header h1 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.browse-header h1 i {
    margin-right: 1rem;
    color: var(--accent-color);
}

.browse-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
    margin: 0;
}

/* Browse Layout - Sidebar + Results */
.browse-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

/* ===================================
   FILTERS SIDEBAR
   ================================== */
.filters-sidebar {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 2rem;
}

.filters-sidebar h3 {
    color: var(--primary-color);
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filters-sidebar h3 i {
    color: var(--accent-color);
}

/* Sidebar Search */
.sidebar-search {
    margin-bottom: 2rem;
}

.sidebar-search .search-box {
    margin-bottom: 0;
}

.sidebar-search .search-input {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    width: 100%;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.sidebar-search .search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.sidebar-search .search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.sidebar-search .search-btn:hover {
    background: var(--primary-dark);
}

/* Filter Section */
.filter-section {
    margin-bottom: 2rem;
}

.filter-group {
    margin-bottom: 1.5rem;
}

.filter-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.filter-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: white;
    font-size: 0.95rem;
    color: var(--gray-700);
    transition: all 0.2s ease;
    cursor: pointer;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Active Filters */
.active-filters {
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.active-filters h4 {
    color: var(--gray-700);
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 600;
}

.filter-tags {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.filter-tag {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--primary-color);
}

.filter-tag i:first-child {
    margin-right: 0.5rem;
}

.filter-remove {
    color: var(--primary-color);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s ease;
    padding: 0.25rem;
    border-radius: var(--border-radius);
}

.filter-remove:hover {
    opacity: 1;
    background: rgba(37, 99, 235, 0.1);
}

.clear-filters {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s ease;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    justify-content: center;
}

.clear-filters:hover {
    color: var(--danger-color);
    border-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.05);
}

/* ===================================
   RESULTS SECTION
   ================================== */
.results-section {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    min-height: 600px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.results-info h2 {
    color: var(--gray-900);
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.results-count {
    color: var(--primary-color);
    font-weight: 700;
}

.sort-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sort-controls label {
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.95rem;
}

.sort-controls select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: white;
    font-size: 0.95rem;
    color: var(--gray-700);
    transition: all 0.2s ease;
    cursor: pointer;
}

.sort-controls select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Publications Section */
.publications-section {
    min-height: 400px;
}

.no-publications {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-500);
}

.no-publications i {
    font-size: 4rem;
    color: var(--gray-400);
    margin-bottom: 1.5rem;
}

.no-publications h3 {
    color: var(--gray-700);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.no-publications p {
    margin: 0;
    font-size: 1.125rem;
}

.no-publications a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.no-publications a:hover {
    text-decoration: underline;
}

/* Publications Grid */
.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 1.5rem;
}

.publication-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    height: fit-content;
}

.publication-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Publication Header Improved Layout */
.publication-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--primary-light) 100%);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.publication-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.publication-meta-badges {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.publication-title-row {
    margin-bottom: 1.5rem;
}

.publication-title {
    margin: 0;
    font-size: 2rem;
    line-height: 1.3;
    font-weight: 700;
    color: var(--gray-900);
    letter-spacing: -0.025em;
}

.publication-authors-row {
    margin-bottom: 1rem;
}

.publication-authors {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-300);
    font-size: 1.1rem;
}

.publication-authors i {
    color: var(--primary-light);
}

.author-label {
    font-weight: 600;
}

.author-names {
    font-weight: 500;
}

.publication-stats {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

.stat i {
    color: var(--primary-color);
}

.publication-title a {
    color: var(--gray-900);
    text-decoration: none;
    transition: color 0.2s ease;
}

.publication-title a:hover {
    color: var(--primary-color);
}

.publication-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.publication-type {
    background: linear-gradient(135deg, var(--primary-light), #e0f2fe);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.publication-type:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.publication-year {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.publication-year:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Responsive improvements for publication header */
@media (max-width: 768px) {
    .publication-header {
        padding: 1.5rem;
    }

    .publication-title {
        font-size: 1.5rem;
        line-height: 1.4;
    }

    .publication-meta-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .publication-meta-badges {
        width: 100%;
        justify-content: flex-start;
    }

    .publication-stats {
        width: 100%;
        justify-content: flex-start;
    }

    .publication-authors {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .publication-header {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .publication-title {
        font-size: 1.25rem;
    }

    .publication-meta-badges {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 0.5rem;
    }

    .access-badge,
    .publication-type,
    .publication-year {
        font-size: 0.8rem;
        padding: 0.375rem 0.75rem;
    }
}

.access-level {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: capitalize;
}

.access-level.access-free {
    color: var(--success-color);
}

.access-level.access-registered {
    color: var(--warning-color);
}

.access-level.access-premium {
    color: var(--accent-color);
}

.publication-details p {
    margin: 0.75rem 0;
    color: var(--gray-700);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.publication-details i {
    color: var(--gray-500);
    margin-top: 0.25rem;
    flex-shrink: 0;
    width: 16px;
}

.publication-abstract {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 4px solid var(--primary-color);
}

.publication-abstract p {
    margin: 0;
    color: var(--gray-700);
    line-height: 1.6;
    font-size: 0.95rem;
}

.publication-keywords {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.keyword-tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 500;
}

.publication-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--gray-100);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

.pagination-link {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-link.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ===================================
   RESPONSIVE DESIGN
   ================================== */
@media (max-width: 1200px) {
    .browse-layout {
        grid-template-columns: 280px 1fr;
        gap: 1.5rem;
    }

    .publications-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
}

@media (max-width: 968px) {
    .browse-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .filters-sidebar {
        position: static;
        order: 2;
    }

    .results-section {
        order: 1;
    }

    .results-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .sort-controls {
        justify-content: space-between;
    }
}

@media (max-width: 768px) {
    .browse-page {
        padding: 1rem 0;
    }

    .browse-header {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .browse-header h1 {
        font-size: 2rem;
    }

    .filters-sidebar {
        padding: 1.25rem;
    }

    .results-section {
        padding: 1.5rem;
    }

    .publications-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .featured-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .publication-card {
        padding: 1.25rem;
    }

    .publication-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .publication-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .pagination {
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .pagination-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .browse-header {
        padding: 1rem;
    }

    .browse-header h1 {
        font-size: 1.75rem;
    }

    .filters-sidebar {
        padding: 1rem;
    }

    .results-section {
        padding: 1rem;
    }

    .publication-card {
        padding: 1rem;
    }

    .publications-grid {
        gap: 1rem;
    }

    .filter-tags {
        gap: 0.5rem;
    }

    .filter-tag {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
}

/* Author Management Styles */
.author-entry {
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--gray-50);
    transition: all 0.2s ease;
}

.author-entry:hover {
    border-color: var(--primary-color);
    background: white;
}

.author-fields .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.author-fields .form-row:last-child {
    grid-template-columns: 1fr auto;
    align-items: end;
}

.author-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 0.5rem;
}

.btn-icon {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
}

.btn-icon:hover {
    background: var(--danger-dark);
    transform: scale(1.05);
}

.btn-icon i {
    font-size: 0.875rem;
}

/* Duplicate categories-grid removed to prevent conflicts */

/* Enhanced Form Styles */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.form-help {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
    display: block;
}

/* Responsive Design for Author Management */
@media (max-width: 768px) {
    .author-fields .form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .author-fields .form-row:last-child {
        grid-template-columns: 1fr auto;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    /* Search page mobile improvements */
    .search-filters {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding-top: 1.5rem;
    }

    .search-form.enhanced {
        padding: 1.5rem;
    }

    .search-form.enhanced .search-box {
        flex-direction: column;
    }

    .search-form.enhanced .search-input {
        border-radius: var(--border-radius) var(--border-radius) 0 0;
    }

    .search-form.enhanced .search-btn {
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        margin-left: 0;
    }
}

/* ===================================
   PUBLICATION PAGE IMPROVEMENTS
   ================================== */

/* New header layout structure */
.publication-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.publication-meta-badges {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.publication-title-row {
    margin-bottom: 1rem;
}

.publication-authors-row {
    margin-bottom: 0.5rem;
}

.publication-authors {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-300);
    font-size: 0.95rem;
}

.author-label {
    font-weight: 500;
}

.author-names {
    color: var(--gray-100);
}

/* Content restriction styles */
.publication-content-restricted {
    position: relative;
    min-height: 200px;
}

.content-blur-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(255, 255, 255, 0.8) 50%,
        rgba(255, 255, 255, 0.95) 100%);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    border: 2px dashed var(--gray-300);
}

.access-required-message {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
}

.access-required-message i {
    font-size: 3rem;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.access-required-message h3 {
    color: var(--gray-800);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.access-required-message p {
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

/* Responsive improvements for publication header */
@media (max-width: 768px) {
    .publication-meta-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .publication-authors {
        flex-wrap: wrap;
        font-size: 0.9rem;
    }
}