/* ===================================
   Little Tails - Main CSS
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #45b7d1;
    --text-color: #2c3e50;
    --bg-color: #ffffff;
    --card-bg: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 5px 20px rgba(0,0,0,0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --text-color: #ecf0f1;
    --bg-color: #1a1a2e;
    --card-bg: #16213e;
    --border-color: #2c3e50;
    --shadow: 0 2px 10px rgba(0,0,0,0.3);
    --shadow-hover: 0 5px 20px rgba(0,0,0,0.5);
}
/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}
.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Header with Image */
.image-header {
    position: relative;
    width: 100%;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.header-bg {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.image-header .theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0,0,0,0.5);
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.image-header .theme-toggle:hover {
    background: rgba(0,0,0,0.7);
    transform: scale(1.05);
}/* Removed old header styles - using image header instead *//* Hero section removed - using image header instead *//* Animation for chapter cards */

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

/* Main Content */
.main-content {
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
}

.section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
/* Controls Section */
.controls-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.controls {
    display: flex;
    gap: var(--spacing-sm);
}

.sort-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}
.sort-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Chapters Grid */
.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Chapter Card */
.chapter-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.chapter-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}
.chapter-cover {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    transition: var(--transition);
}

.chapter-card:hover .chapter-cover {
    transform: scale(1.05);
}

.chapter-info {
    padding: var(--spacing-md);
}

.chapter-number {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: bold;
    text-transform: uppercase;
}

.chapter-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

.chapter-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 0.5rem;
}
.new-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* No Chapters Message */
.no-chapters {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-color);
    opacity: 0.6;
}

.no-chapters i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

/* Comments Section */
.comments-section {
    background: var(--card-bg);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
}
/* Footer */
.main-footer {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

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

.footer-section h3 {
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.footer-links a:hover {
    opacity: 1;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.2);
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    .image-header .theme-toggle {
        top: 10px;
        right: 10px;
        padding: 0.4rem 0.8rem;
        font-size: 1rem;
    }
    
    .chapters-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    .controls-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    .controls {
        justify-content: center;
    }
}