/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #850e35;
    --secondary: #ee6983;
    --accent: #ffc4c4;
    --background: #fff5e4;
    --text-primary: #4a1c2a;
    --text-secondary: #7a3a4a;
    --white: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-primary);
    background-color: var(--background);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 1.25rem 0;
    box-shadow: 0 4px 12px rgba(133, 14, 53, 0.15);
    border-bottom: none;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: 'Allura', cursive !important;
    font-size: 2.6rem;
    font-weight: 400;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.nav-brand:hover {
    color: var(--accent);
    transform: scale(1.05);
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 4px;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--accent);
}

.nav-link:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--accent);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

.nav-user {
    color: var(--white);
    font-weight: 500;
    opacity: 0.95;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 120px);
    padding: 3rem 0;
}

/* Page Header */
.page-header {
    margin-bottom: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-header h1 {
    color: var(--text-primary);
    font-size: 2rem;
}

.text-muted {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(133, 14, 53, 0.1);
}

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

.btn-primary:hover {
    background-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(133, 14, 53, 0.2);
}

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

.btn-secondary:hover {
    background-color: var(--secondary);
    color: var(--white);
    transform: translateY(-2px);
}

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

.btn-danger:hover {
    background-color: #6a0b2a;
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.875rem;
}

/* Forms */
.form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    border: 2px solid var(--accent);
    box-shadow: 0 4px 16px rgba(133, 14, 53, 0.08);
    max-width: 600px;
}

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

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 2px solid #e8d5d5;
    border-radius: 12px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(238, 105, 131, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

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

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.auth-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    border: 2px solid var(--accent);
    box-shadow: 0 6px 24px rgba(133, 14, 53, 0.1);
    width: 100%;
    max-width: 400px;
}

.auth-card h1 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

/* Messages */
.messages-container {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 20px;
}

.message {
    padding: 1.25rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.message-success {
    background-color: #f0f9f4;
    color: var(--text-primary);
    border: 2px solid #a8e6cf;
}

.message-error {
    background-color: #fff0f3;
    color: var(--primary);
    border: 2px solid var(--accent);
}

.message-warning {
    background-color: #fff8e8;
    color: var(--text-primary);
    border: 2px solid #ffe4b3;
}

.message-info {
    background-color: #f5f9ff;
    color: var(--text-primary);
    border: 2px solid var(--accent);
}

/* Course Grid */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 2.5rem;
}

.course-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 16px;
    border: 2px solid var(--accent);
    box-shadow: 0 4px 16px rgba(133, 14, 53, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 24px rgba(133, 14, 53, 0.15);
    border-color: var(--secondary);
}

.course-card-cover {
    margin: -1.5rem -1.5rem 1rem -1.5rem;
    overflow: hidden;
    background-color: #fef8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 2px solid var(--accent);
}

.course-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: contain;
    display: block;
    transition: transform 0.3s ease;
}

.course-card:hover .course-thumbnail {
    transform: scale(1.03);
}

.course-card h3 {
    margin-bottom: 0.5rem;
}

.course-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

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

.course-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.course-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

/* Video List */
.video-list {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    border: 2px solid var(--accent);
    box-shadow: 0 4px 16px rgba(133, 14, 53, 0.08);
}

.video-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem;
    border-bottom: 1px solid var(--accent);
    gap: 1.5rem;
    transition: background-color 0.3s;
}

.video-item:hover {
    background-color: #fffbf7;
}

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

/* Video Thumbnail */
.video-thumbnail-container {
    flex-shrink: 0;
    width: 160px;
    height: 90px;
    border-radius: 12px;
    overflow: hidden;
    background-color: #fef8f0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent);
}

.video-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

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

.video-thumbnail-placeholder .video-icon {
    font-size: 3rem;
    opacity: 0.8;
}

.video-play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    pointer-events: none;
}

.video-info {
    flex: 1;
}

.video-info h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.video-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.video-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
}

.video-status {
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-ready {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.status-pending, .status-processing {
    background-color: #fff8e8;
    color: #b85c00;
}

.status-failed {
    background-color: #ffe8f0;
    color: var(--primary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3.5rem 1.5rem;
    background: var(--white);
    border-radius: 16px;
    border: 2px solid var(--accent);
    box-shadow: 0 4px 16px rgba(133, 14, 53, 0.08);
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* Tables */
.access-table {
    width: 100%;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    border: 2px solid var(--accent);
    box-shadow: 0 4px 16px rgba(133, 14, 53, 0.08);
    border-collapse: collapse;
}

.access-table th,
.access-table td {
    padding: 1.25rem;
    text-align: left;
}

.access-table thead {
    background: linear-gradient(135deg, rgba(133, 14, 53, 0.05) 0%, rgba(238, 105, 131, 0.05) 100%);
    color: var(--text-primary);
    font-weight: 600;
}

.access-table tbody tr {
    border-bottom: 1px solid var(--accent);
    transition: background-color 0.3s;
}

.access-table tbody tr:hover {
    background-color: #fffbf7;
}

.access-table tbody tr:last-child {
    border-bottom: none;
}

/* Alerts */
.alert {
    padding: 1.25rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.alert-error {
    background-color: #fff0f3;
    color: var(--primary);
    border: 2px solid var(--accent);
}

.alert-info {
    background-color: #f5f9ff;
    color: var(--text-primary);
    border: 2px solid var(--accent);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
    box-shadow: 0 -4px 12px rgba(133, 14, 53, 0.1);
}

.footer p {
    margin: 0;
    opacity: 0.95;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 8px;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.badge-secondary {
    background-color: #ffe8f0;
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .video-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

/* Draft Video Styling */
.draft-video {
    border-left: 4px solid var(--secondary);
    background-color: #fffbf7;
}

.draft-badge {
    display: inline-block;
    background-color: var(--secondary);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: bold;
    margin-left: 8px;
    vertical-align: middle;
}

.video-order {
    background-color: var(--accent);
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-primary);
}

/* Teacher Video Controls */
.teacher-controls {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.btn-icon {
    background: var(--white);
    border: 2px solid var(--accent);
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.btn-icon:hover {
    background-color: #fffbf7;
    border-color: var(--secondary);
    transform: scale(1.05);
}

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

.btn-icon.btn-danger:hover {
    background-color: #fff0f3;
    border-color: var(--primary);
}

/* Course Header Layout */
.course-header-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2.5rem;
    margin-bottom: 2rem;
    padding: 2.5rem;
    background: var(--white);
    border: 2px solid var(--accent);
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(133, 14, 53, 0.08);
}

.course-title-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.course-title-section h1 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.course-cover-card {
    flex-shrink: 0;
    width: 300px;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--accent);
}

.course-cover-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

@media (max-width: 768px) {
    .course-header-content {
        flex-direction: column;
    }
    
    .course-cover-card {
        width: 100%;
        max-width: 400px;
    }
    
    /* Adjust brand font size for mobile */
    .nav-brand {
        font-size: 1.8rem;
    }
    
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }
}

/* Course Form - Current Image Preview */
.current-image {
    margin-bottom: 1.5rem;
}

.current-image img {
    border: 2px solid var(--accent);
    border-radius: 12px;
}