/* ==================== CSS VARIABLES & RESET ==================== */
:root {
    /* Color Scheme - Dark Gaming Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #13131f;
    --bg-tertiary: #1a1a2e;
    --bg-card: #1e1e32;
    --bg-card-hover: #252540;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b8b8d2;
    --text-muted: #787895;

    /* Accent Colors */
    --accent-primary: #7c3aed;
    --accent-secondary: #a78bfa;
    --accent-hover: #6d28d9;
    --accent-glow: rgba(124, 58, 237, 0.4);

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Borders & Shadows */
    --border-color: #2a2a4a;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px var(--accent-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Fira Code', monospace;

    /* Layout */
    --header-height: 72px;
    --container-max: 1400px;
    --grid-gap: var(--spacing-lg);
}

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

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

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Remove default focus outline, add custom */
:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--accent-secondary);
    outline-offset: 2px;
}

/* ==================== UTILITIES ==================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== HEADER STYLES ==================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, transparent 100%);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-lg);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5rem;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 1.75rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* Navigation */
.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
}

.nav-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: var(--accent-primary);
    border-radius: 3px;
}

/* Search Bar */
.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) 48px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    outline: none;
}

.search-btn {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.search-btn:hover {
    color: var(--accent-secondary);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

/* ==================== MAIN CONTENT ==================== */
.main {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* Filters */
.filters {
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) transparent;
}

.filters::-webkit-scrollbar {
    height: 6px;
}

.filters::-webkit-scrollbar-track {
    background: transparent;
}

.filters::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 3px;
}

.filter-scroll {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Results Info */
.results-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

#resultsCount {
    color: var(--text-secondary);
    font-weight: 500;
}

.sort-select {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.sort-select:focus {
    border-color: var(--accent-primary);
    outline: none;
}

/* Loading Animation */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    gap: var(--spacing-lg);
}

.loader {
    width: 60px;
    height: 60px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ==================== GAMES GRID ==================== */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--grid-gap);
    margin-bottom: var(--spacing-xl);
}

/* Game Card */
.game-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    position: relative;
    cursor: pointer;
}

.game-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.game-card:hover::before {
    opacity: 1;
}

/* Thumbnail */
.game-thumbnail {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.game-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    loading: lazy;
}

.game-card:hover .game-thumbnail img {
    transform: scale(1.1);
}

/* Play Button Overlay */
.play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.game-card:hover .play-overlay {
    opacity: 1;
}

.play-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--accent-primary);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.play-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.play-btn svg {
    margin-left: 4px;
    /* Visual centering for play icon */
}

/* Card Content */
.game-info {
    padding: var(--spacing-md);
}

.game-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.game-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.game-category {
    background: var(--bg-tertiary);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
}

/* ==================== NO RESULTS ==================== */
.no-results {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.no-results svg {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.no-results h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* ==================== PAGINATION ==================== */
.pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) 0;
}

.load-more-btn {
    padding: var(--spacing-md) var(--spacing-2xl);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.load-more-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.load-more-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.scroll-sentinel {
    height: 1px;
}

/* ==================== MODAL (GAME IFRAME) ==================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    width: 95%;
    max-width: 1200px;
    height: 90vh;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.modal.active .modal-content {
    transform: scale(1);
}

/* Modal Header */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 70%;
}

.modal-close {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--error);
    border-color: var(--error);
    transform: rotate(90deg);
}

/* Modal Body - Iframe */
.modal-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: #000;
}

.iframe-wrapper {
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
}

.game-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #000;
}

/* Modal Footer */
.modal-footer {
    padding: var(--spacing-sm) var(--spacing-lg);
    text-align: center;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
}

.modal-tip {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.modal-tip kbd {
    background: var(--bg-card);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
}

/* ==================== FOOTER STYLES ==================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: auto;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-desc {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.social-links a:hover {
    background: var(--accent-primary);
    border-color: var(--accent-secondary);
    transform: translateY(-3px);
}

.footer-links h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: block;
    padding: 2px 0;
}

.footer-links a:hover {
    color: var(--accent-secondary);
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==================== BACK TO TOP BUTTON ==================== */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-primary);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--accent-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

/* Tablet */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }

    .games-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--spacing-md);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 64px;
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }

    /* Header */
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-md);
        transform: translateY(-150%);
        transition: transform var(--transition-normal);
        z-index: 99;
    }

    .nav.active {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .search-container {
        order: 3;
        max-width: 100%;
        margin-top: var(--spacing-md);
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active .hamburger:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active .hamburger:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Filters */
    .filter-scroll {
        padding: 0 var(--spacing-sm);
    }

    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.9rem;
    }

    /* Results Info */
    .results-info {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    /* Games Grid */
    .games-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }

    .game-title {
        font-size: 1rem;
    }

    .play-btn {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    /* Modal */
    .modal-content {
        width: 100%;
        height: 100%;
        border-radius: 0;
        border: none;
    }

    .modal-title {
        max-width: 60%;
        font-size: 1.1rem;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .footer-links ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm) var(--spacing-md);
    }

    .footer-links li {
        margin: 0;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .game-thumbnail {
        aspect-ratio: 1/1;
    }

    .game-info {
        padding: var(--spacing-sm);
    }

    .game-title {
        font-size: 0.9rem;
        -webkit-line-clamp: 1;
    }

    .game-meta {
        font-size: 0.75rem;
    }

    .modal-header {
        padding: var(--spacing-sm);
    }

    .modal-close {
        width: 36px;
        height: 36px;
    }
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.game-card {
    animation: fadeIn 0.4s ease forwards;
    animation-delay: calc(var(--i, 0) * 50ms);
}

/* Skeleton Loading for Cards */
.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-tertiary) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--border-radius);
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

.skeleton-thumbnail {
    aspect-ratio: 4/3;
    width: 100%;
}

.skeleton-title {
    height: 20px;
    margin: var(--spacing-md) 0;
    width: 90%;
}

.skeleton-meta {
    height: 14px;
    width: 60%;
}

/* ==================== ACCESSIBILITY ==================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #ffffff;
        --text-muted: #cccccc;
    }

    .game-card {
        border-width: 3px;
    }
}