/**
 * CSS Architecture Guide
 * ==========================================================================
 *
 * 1. Design Tokens & Variables
 *    - All colors, spacing, typography, and borders are defined in :root
 *    - Use var(--variable-name) instead of hardcoded values
 *    - Theme specific overrides are in default-light.css and default-dark.css
 *
 * 2. Layout
 *    - .container: Max-width wrapper with padding
 *    - Grid system: Use CSS Grid (display: grid) for layouts
 *    - Flexbox: Use Flexbox for alignment and components
 *
 * 3. Components
 *    - .card: Standard container with border and background
 *    - .btn: Buttons (primary, outline, etc.)
 *    - .form-control: Input fields
 *    - .alert: Feedback messages
 *
 * 4. Typography
 *    - Base font: Inter (Google Fonts)
 *    - Sizes: defined in --font-size-* variables
 *
 * 5. Naming Convention
 *    - BEM-ish (Block Element Modifier) for components
 *    - Utility classes (e.g., .mb-4, .text-center) for common patterns
 *
 * 6. Best Practices
 *    - No !important
 *    - Low specificity selectors
 *    - Semantic HTML tags first
 */

:root {
    /* Typography */
    --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-8: 3rem;
    --space-10: 4rem;

    /* Layout */
    --container-width: 1200px;
    --header-height: 70px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.5;
    background-color: var(--bg-body);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

/* Layout Classes */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

main {
    flex: 1;
    padding: var(--space-6) 0;
}

/* Header */
.main-header {
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.main-space {
    margin-top: 0;
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.logo h1 {
    font-size: var(--font-size-xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--logo-color);
}

.main-nav ul {
    display: flex;
    gap: var(--space-5);
}

.main-nav a {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.search-btn {
    background: none;
    border: 1px solid var(--border-color);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.search-btn svg {
    width: 18px;
    height: 18px;
}

.search-btn:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--primary-color);
}

.theme-btn {
    background: none;
    border: 1px solid var(--border-color);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    transition: all var(--transition-fast);
}

.theme-btn:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--primary-color);
}

.language-selector select {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: var(--space-2) var(--space-6) var(--space-2) var(--space-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    cursor: pointer;
    min-height: 36px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='24' height='24'%3E%3Cpath fill='gray' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
}

.language-selector select:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--primary-color);
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

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

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--text-main);
}

/* Footer */
.main-footer {
    background-color: var(--bg-footer);
    border-top: 1px solid var(--border-color);
    padding: var(--space-8) 0;
    margin-top: auto;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.footer-section h3 {
    color: var(--text-main);
    margin-bottom: var(--space-3);
}

.footer-section h4 {
    color: var(--text-main);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: var(--text-muted);
}

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

/* Utilities */
.text-center { text-align: center; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }

/* Responsive */
/* Header Mobile Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: 110;
}

.hamburger-box {
    width: 24px;
    height: 24px;
    display: inline-block;
    position: relative;
}

.hamburger-inner {
    display: block;
    top: 50%;
    margin-top: -1px;
    width: 24px;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    position: absolute;
    transition-property: transform;
    transition-duration: 0.15s;
    transition-timing-function: ease;
}

.hamburger-inner::before,
.hamburger-inner::after {
    width: 24px;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    position: absolute;
    content: "";
    display: block;
    transition-property: transform;
    transition-duration: 0.15s;
    transition-timing-function: ease;
}

.hamburger-inner::before {
    top: -8px;
}

.hamburger-inner::after {
    bottom: -8px;
}

/* Mobile Menu Open State */
.mobile-menu-open .hamburger-inner {
    transform: rotate(45deg);
}

.mobile-menu-open .hamburger-inner::before {
    top: 0;
    opacity: 0;
}

.mobile-menu-open .hamburger-inner::after {
    bottom: 0;
    transform: rotate(-90deg);
}

@media (max-width: 768px) {
    .header-container {
        padding: var(--space-3);
        justify-content: center;
        flex-wrap: wrap;
    }

    .mobile-menu-toggle {
        display: block;
        position: absolute;
        left: var(--space-3);
        top: 50%;
        transform: translateY(-50%);
    }

    .header-controls {
        position: absolute;
        right: var(--space-3);
        top: 50%;
        transform: translateY(-50%);
    }

    .logo {
        margin: 0 auto;
    }

    .main-header {
        height: 60px;
        position: sticky;
        top: 0;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-header);
        border-bottom: 1px solid var(--border-color);
        padding: var(--space-4);
        display: none;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(10px);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }

    .main-nav.is-open {
        display: block;
        animation: slideDown var(--transition-fast) forwards;
    }

    .main-nav ul {
        flex-direction: column;
        gap: var(--space-2);
    }

    .main-nav a {
        display: block;
        padding: var(--space-3);
        border-radius: var(--radius-md);
        font-size: var(--font-size-base);
        border: 1px solid transparent;
    }

    .main-nav a:hover,
    .main-nav a.active {
        background-color: var(--bg-card);
        border-color: var(--border-color);
        color: var(--primary-color);
    }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 400px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-8);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.7));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: var(--space-4);
    max-width: 800px;
}

.hero-content h1 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--space-3);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-6);
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.hero-search-form {
    max-width: 500px;
    margin: 0 auto var(--space-6);
    position: relative;
    display: flex;
    align-items: center;
}

.hero-search-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    padding-right: 3rem;
    font-size: var(--font-size-base);
    border: none;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.95);
    color: #1a1a1a;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-search-input:focus {
    outline: none;
    transform: scale(1.02);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.hero-search-btn {
    position: absolute;
    right: var(--space-1);
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

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

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

@media (max-width: 768px) {
    .hero-section {
        height: 300px;
    }
    .hero-content h1 {
        font-size: var(--font-size-2xl);
    }
}

/* Home & Grid Styles */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--border-color);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    color: var(--text-main);
}

.view-all {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 600;
}

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

.matches-grid,
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

/* Match Card */
.match-card {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.match-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.match-teams {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.vs {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-align: center;
    font-weight: 500;
    opacity: 0.6;
}

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

.team-name {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-main);
}

.team-score {
    font-weight: 700;
    font-size: var(--font-size-lg);
    background-color: var(--bg-body);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    min-width: 32px;
    text-align: center;
}

.match-meta {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: var(--space-3);
    margin-top: auto;
}

/* Video Card */
.video-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-fast);
}

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

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    background-color: #000;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.video-card:hover .video-thumb img {
    opacity: 1;
}

.play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background-color: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    backdrop-filter: blur(4px);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.video-info {
    padding: var(--space-4);
}

.video-info h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.video-title {
    font-size: var(--font-size-2xl);
}

.video-info h3 a {
    color: var(--text-main);
}

.video-info h3 a:hover {
    color: var(--primary-color);
}

.video-meta {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Teams Grid */
.teams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.team-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
    text-align: center;
    height: 100%;
}

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

.team-initials {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: var(--font-size-xl);
    background-color: var(--team-color-background, var(--primary-color));
    color: var(--team-color-text, #ffffff);
    margin-bottom: var(--space-3);
    box-shadow: var(--shadow-sm);
}

.team-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-main);
}

/* Teams Group (A/B Columns) */
.teams-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10%, 250px));
    gap: var(--space-10);
    margin-bottom: var(--space-8);
    align-items: center;
    justify-content: center;
    text-align:center;
}

.teams-column {
    max-width:250px;
    text-align:center;
}

.teams-column-header h2 {
    text-align:center;
    width:100%;
}

.teams-initials {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.team-card-mini {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-xs);
    background-color: var(--team-color-background, var(--bg-card));
    color: var(--team-color-text, var(--text-main));
    border: 1px solid var(--border-color);
    transition: transform var(--transition-fast);
}

.team-card-mini:hover {
    transform: scale(1.1);
    z-index: 10;
}

.team-card-mini .team-initials {
    width: 100%;
    height: 100%;
    margin: 0;
    font-size: inherit;
    box-shadow: none;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: var(--space-10) var(--space-4);
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-4);
    display: block;
    opacity: 0.5;
}

/* Alerts */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    background-color: var(--bg-alert);
    border: 1px solid var(--border-color);
    color: var(--text-alert);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.2);
}

.alert-success {
    background-color: var(--bg-success);
    color: var(--text-success);
    border-color: var(--border-success);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border-color: rgba(59, 130, 246, 0.2);
}

/* Forms */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    color: var(--text-main);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-color-alpha, rgba(59, 130, 246, 0.2));
}

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

/* Breadcrumb */
.breadcrumb-nav {
    margin-bottom: var(--space-4);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: var(--space-2);
    opacity: 0.5;
}

.breadcrumb a {
    color: var(--text-muted);
}

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

.breadcrumb li.active {
    color: var(--text-main);
    font-weight: 500;
}