/*
 * ScholarPress - Main Stylesheet
 * A professional academic publication platform
 * 
 * Color Palette:
 * Primary: #1a365d (Deep Navy Blue) - Trust, professionalism
 * Secondary: #2563eb (Royal Blue) - Links, actions
 * Tertiary: #059669 (Emerald Green) - Success, open access
 * Accent: #dc2626 (Research Red) - Highlights, alerts
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Primary Colors */
    --color-primary: #1a365d;
    --color-primary-light: #2d4a73;
    --color-primary-dark: #0f2342;
    
    /* Secondary Colors */
    --color-secondary: #2563eb;
    --color-secondary-light: #3b82f6;
    --color-secondary-dark: #1d4ed8;
    
    /* Tertiary Colors */
    --color-tertiary: #059669;
    --color-tertiary-light: #10b981;
    --color-tertiary-dark: #047857;
    
    /* Accent Colors */
    --color-accent: #dc2626;
    --color-accent-light: #ef4444;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Merriweather', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* ==================== Global Styles ==================== */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    color: var(--color-gray-800);
    line-height: 1.6;
    background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-gray-900);
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-secondary-dark);
}

/* ==================== Bootstrap Overrides ==================== */
.bg-primary {
    background-color: var(--color-primary) !important;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-light);
}

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

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
}

.btn-success {
    background-color: var(--color-tertiary);
    border-color: var(--color-tertiary);
}

.btn-success:hover {
    background-color: var(--color-tertiary-dark);
    border-color: var(--color-tertiary-dark);
}

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

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

.text-primary {
    color: var(--color-primary) !important;
}

.text-secondary {
    color: var(--color-secondary) !important;
}

.text-success {
    color: var(--color-tertiary) !important;
}

/* ==================== Navigation ==================== */
.navbar {
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-white) !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    padding: 0.5rem 1rem;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--color-white);
}

.navbar-dark .dropdown-menu {
    background-color: var(--color-white);
}

.navbar-dark .dropdown-menu .dropdown-item {
    color: var(--color-gray-700) !important;
}

.navbar-dark .dropdown-menu .dropdown-item:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary) !important;
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
}

.dropdown-item:hover {
    background-color: var(--color-gray-100);
}

/* ==================== Hero Section ==================== */
.hero-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-section h1 {
    color: var(--color-white);
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-section p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-section a:not(.btn):not(.hero-cta) {
    color: var(--color-white);
    text-decoration: underline;
}

.hero-section a:not(.btn):not(.hero-cta):hover {
    color: rgba(255, 255, 255, 0.8);
}

.hero-cta {
    display: inline-block;
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.hero-cta:hover {
    background-color: var(--color-secondary-light);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==================== Section Styles ==================== */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.section-subtitle {
    color: var(--color-gray-500);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.section-light {
    background-color: var(--color-gray-50);
}

/* ==================== Article Cards ==================== */
.article-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    height: 100%;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.article-card .journal-badge {
    display: inline-block;
    background-color: var(--color-gray-100);
    color: var(--color-gray-600);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.article-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--color-gray-900);
}

.article-card h3 a:hover {
    color: var(--color-secondary);
}

.article-card .authors {
    color: var(--color-gray-500);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.article-card .abstract {
    color: var(--color-gray-600);
    font-size: 0.9rem;
    flex-grow: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.article-card .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-200);
    font-size: 0.8rem;
    color: var(--color-gray-500);
}

.article-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.article-card .tag {
    display: inline-block;
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
}

.open-access-badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--color-tertiary);
    color: var(--color-white);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
}

.open-access-badge i {
    margin-right: 0.25rem;
}

/* ==================== Journal Cards ==================== */
.journal-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    transition: all 0.3s ease;
}

.journal-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.journal-card-cover {
    height: 150px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 3rem;
}

.journal-card-cover a {
    color: var(--color-white);
}

.journal-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.journal-card-body {
    padding: 1.25rem;
}

.journal-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.journal-card p {
    color: var(--color-gray-600);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* ==================== Feature Cards ==================== */
.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--color-white);
    font-size: 2rem;
}

.feature-icon i {
    color: var(--color-white);
}

.feature-card h4 {
    margin-bottom: 0.75rem;
    color: var(--color-gray-900);
}

.feature-card p {
    color: var(--color-gray-600);
}

/* ==================== Article Detail Page ==================== */
.article-header {
    background-color: var(--color-gray-50);
    padding: 3rem 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.article-header .journal-name {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.article-header h1 {
    font-size: 2rem;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.article-meta {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

.article-meta .author-list {
    color: var(--color-gray-700);
    font-weight: 500;
}

.article-body {
    padding: 3rem 0;
}

.article-abstract {
    background-color: var(--color-gray-50);
    border-left: 4px solid var(--color-secondary);
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-abstract h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.article-content {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-sidebar {
    position: sticky;
    top: 100px;
}

.article-sidebar .card {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.article-sidebar .card-header {
    background-color: var(--color-gray-50);
    font-weight: 600;
    border-bottom: 1px solid var(--color-gray-200);
}

.doi-link {
    word-break: break-all;
    color: var(--color-secondary);
}

/* ==================== Forms ==================== */
.form-control, .form-select {
    border-color: var(--color-gray-300);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-text {
    color: var(--color-gray-500);
    font-size: 0.85rem;
}

/* ==================== Submission Tracking ==================== */
.tracking-timeline {
    position: relative;
    padding-left: 2rem;
}

.tracking-timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-gray-200);
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-gray-400);
    border: 2px solid var(--color-white);
}

.timeline-item.active::before {
    background-color: var(--color-secondary);
}

.timeline-item.completed::before {
    background-color: var(--color-tertiary);
}

.timeline-item.declined::before {
    background-color: var(--color-accent);
}

/* ==================== Status Badges ==================== */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.status-submitted {
    background-color: #dbeafe;
    color: #1e40af;
}

.status-in_review {
    background-color: #fef3c7;
    color: #92400e;
}

.status-accepted {
    background-color: #d1fae5;
    color: #065f46;
}

.status-declined {
    background-color: #fee2e2;
    color: #991b1b;
}

/* ==================== Contact Thread ==================== */
.message-thread {
    max-width: 800px;
    margin: 0 auto;
}

.message-item {
    display: flex;
    margin-bottom: 1.5rem;
}

.message-item.from-user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-600);
    flex-shrink: 0;
}

.message-item.from-user .message-avatar {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.message-item.from-admin .message-avatar {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.message-content {
    margin: 0 1rem;
    max-width: 70%;
}

.message-bubble {
    background-color: var(--color-gray-100);
    padding: 1rem;
    border-radius: var(--radius-lg);
    border-top-left-radius: var(--radius-sm);
}

.message-item.from-user .message-bubble {
    background-color: var(--color-secondary);
    color: var(--color-white);
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-sm);
}

.message-item.from-user .message-bubble a {
    color: var(--color-white);
    text-decoration: underline;
}

.message-time {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

.message-item.from-user .message-time {
    color: var(--color-gray-500);
}

/* ==================== Pagination ==================== */
.pagination .page-link {
    color: var(--color-primary);
    border-color: var(--color-gray-200);
}

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

.pagination .page-link:hover {
    background-color: var(--color-gray-100);
}

/* ==================== Footer ==================== */
.footer {
    background-color: var(--color-gray-900) !important;
}

.footer,
.footer p,
.footer li,
.footer .text-muted {
    color: var(--color-gray-400) !important;
}

.footer a,
.footer a.text-muted {
    color: var(--color-gray-300) !important;
    transition: color 0.2s ease;
}

.footer a:hover,
.footer a.text-muted:hover {
    color: var(--color-white) !important;
}

.footer h5, .footer h6 {
    color: var(--color-white) !important;
}

.footer .text-light {
    color: var(--color-gray-200) !important;
}

.footer hr {
    border-color: var(--color-gray-700) !important;
    opacity: 1;
}

.footer .social-links a {
    color: var(--color-gray-400) !important;
}

.footer .social-links a:hover {
    color: var(--color-white) !important;
}

/* ==================== Utilities ==================== */
.text-truncate-2 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.text-truncate-3 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.bg-gradient-primary,
.bg-primary,
.bg-gradient-primary > *,
.bg-primary > * {
    color: var(--color-white) !important;
}

/* Exclude dropdown menus from dark background text override */
.navbar-dark .dropdown-menu {
    background-color: var(--color-white) !important;
}

.navbar .dropdown-menu .dropdown-item,
.navbar .dropdown-menu .dropdown-item *,
.navbar-dark .dropdown-menu .dropdown-item,
.navbar-dark .dropdown-menu .dropdown-item *,
nav.bg-primary .dropdown-menu .dropdown-item,
nav.bg-primary .dropdown-menu .dropdown-item * {
    color: var(--color-gray-700) !important;
}

.navbar .dropdown-menu .dropdown-item:hover,
.navbar .dropdown-menu .dropdown-item:hover *,
.navbar-dark .dropdown-menu .dropdown-item:hover,
.navbar-dark .dropdown-menu .dropdown-item:hover *,
nav.bg-primary .dropdown-menu .dropdown-item:hover,
nav.bg-primary .dropdown-menu .dropdown-item:hover * {
    color: var(--color-primary) !important;
    background-color: var(--color-gray-100);
}

.bg-gradient-primary .btn-light,
.bg-primary .btn-light,
.bg-dark .btn-light {
    color: var(--color-primary) !important;
}

.bg-gradient-primary .btn-outline-light,
.bg-primary .btn-outline-light,
.bg-dark .btn-outline-light {
    color: var(--color-white) !important;
    border-color: var(--color-white) !important;
}

.bg-gradient-primary .btn-outline-light:hover,
.bg-primary .btn-outline-light:hover,
.bg-dark .btn-outline-light:hover {
    color: var(--color-primary) !important;
    background-color: var(--color-white) !important;
}

.bg-gradient-primary a:not(.btn):not(.dropdown-item),
.bg-primary a:not(.btn):not(.dropdown-item),
.bg-dark a:not(.btn):not(.dropdown-item) {
    color: rgba(255, 255, 255, 0.85) !important;
}

.bg-gradient-primary a:not(.btn):not(.dropdown-item):hover,
.bg-primary a:not(.btn):not(.dropdown-item):hover,
.bg-dark a:not(.btn):not(.dropdown-item):hover {
    color: var(--color-white);
}

/* Card headers with dark backgrounds */
.card-header.bg-primary,
.card-header.bg-dark {
    color: var(--color-white);
}

.card-header.bg-primary a,
.card-header.bg-dark a {
    color: var(--color-white);
}

/* ==================== Badge Visibility ==================== */
.badge.bg-primary,
.badge.bg-secondary,
.badge.bg-success,
.badge.bg-danger,
.badge.bg-warning,
.badge.bg-info,
.badge.bg-dark {
    color: var(--color-white);
}

.badge.bg-warning {
    color: var(--color-gray-900);
}

.badge.bg-light {
    color: var(--color-gray-800);
}

/* Subtle badge variants */
.badge.bg-primary-subtle {
    background-color: rgba(37, 99, 235, 0.1) !important;
    color: var(--color-secondary) !important;
}

.badge.bg-success-subtle {
    background-color: rgba(5, 150, 105, 0.1) !important;
    color: var(--color-tertiary) !important;
}

.badge.bg-danger-subtle {
    background-color: rgba(220, 38, 38, 0.1) !important;
    color: var(--color-accent) !important;
}

.badge.bg-warning-subtle {
    background-color: rgba(245, 158, 11, 0.1) !important;
    color: #b45309 !important;
}

.badge.bg-secondary-subtle {
    background-color: rgba(107, 114, 128, 0.1) !important;
    color: var(--color-gray-600) !important;
}

/* ==================== Alert Visibility ==================== */
.alert a {
    font-weight: 600;
}

.alert-primary a,
.alert-info a {
    color: #0c4a6e;
}

.alert-success a {
    color: #166534;
}

.alert-warning a {
    color: #92400e;
}

.alert-danger a {
    color: #991b1b;
}

/* ==================== Table Visibility ==================== */
.table-dark a {
    color: var(--color-gray-300);
}

.table-dark a:hover {
    color: var(--color-white);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .section {
        padding: 2.5rem 0;
    }
    
    .article-header h1 {
        font-size: 1.5rem;
    }
    
    .article-sidebar {
        position: static;
        margin-top: 2rem;
    }
}

/* ==================== Print Styles ==================== */
@media print {
    .navbar, .footer, .btn, .no-print {
        display: none !important;
    }
    
    .article-content {
        font-size: 12pt;
    }
}