:root {
    --bg-base: #0f1016;
    --bg-surface: #1a1c29;
    --bg-surface-hover: #2a2d42;
    --bg-search: #25283d;
    --text-main: #ffffff;
    --text-muted: #9ca3af;
    --accent-primary: #6366f1; /* Crazygames Blue/Purple */
    --accent-hover: #4f46e5;
    --badge-hot: #ef4444;
    --badge-new: #3b82f6;
    --badge-top: #eab308;
    --sidebar-width: 220px;
    --sidebar-collapsed: 70px;
    --border-radius: 12px;
    --transition: 0.2s ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    overflow-x: hidden;
}

/* Typography & Utilities */
h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 1rem; }
h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.8rem; }
.hidden { display: none !important; }

/* --- Top Navigation --- */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1.5rem;
    background-color: var(--bg-base);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-left { display: flex; align-items: center; gap: 1rem; }
.logo { font-size: 1.4rem; font-weight: 800; display: flex; align-items: center; gap: 0.5rem;}
.logo span { color: var(--accent-primary); }

.search-container {
    flex: 0 1 500px;
    position: relative;
}
.search-container input {
    width: 100%;
    padding: 0.8rem 1.2rem 0.8rem 2.5rem;
    border-radius: 30px;
    background-color: var(--bg-search);
    border: 1px solid transparent;
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}
.search-container input:focus { border-color: var(--accent-primary); }
.search-icon { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); }

.nav-right { display: flex; gap: 1rem; }
.action-btn, .icon-btn {
    background: var(--bg-search);
    border: none;
    color: var(--text-main);
    width: 40px; height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: var(--transition);
}
.action-btn:hover, .icon-btn:hover { background: var(--bg-surface-hover); }

/* --- Layout --- */
.app-container { display: flex; min-height: calc(100vh - 65px); }

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-base);
    padding: 1rem 0;
    transition: width var(--transition);
    overflow-y: auto;
}
.sidebar.collapsed { width: var(--sidebar-collapsed); }
.sidebar.collapsed span, .sidebar.collapsed .sidebar-title { display: none; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1.5rem;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    border-left: 3px solid transparent;
    transition: var(--transition);
}
.nav-item i { width: 20px; text-align: center; font-size: 1.1rem; }
.nav-item:hover { background: var(--bg-surface); color: var(--text-main); }
.nav-item.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}
.sidebar-title { padding: 1rem 1.5rem 0.5rem; color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; font-weight: 700; letter-spacing: 1px; }
hr { border: none; border-top: 1px solid rgba(255,255,255,0.05); margin: 1rem 0; }

/* --- Main Content & Grids --- */
.main-content {
    flex: 1;
    padding: 1.5rem;
    background-color: var(--bg-base);
}

.section-block { margin-bottom: 2.5rem; }

/* Standard Grid */
.game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}

/* Hero Grid (First block larger) */
.hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    grid-auto-rows: 120px;
    gap: 1rem;
}
.hero-grid .game-card:first-child {
    grid-column: span 2;
    grid-row: span 2;
}
.hero-grid .game-card:first-child h4 { font-size: 1.2rem; }

/* --- Game Cards --- */
.game-card {
    background: var(--bg-surface);
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
}
.game-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.4);
}
.game-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0; left: 0; z-index: 1;
}
.game-card::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 50%);
    z-index: 2;
}

.card-content {
    position: relative;
    z-index: 3;
    margin-top: auto;
    padding: 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 100%;
}
.card-content h4 { font-size: 0.9rem; text-shadow: 0 2px 4px rgba(0,0,0,0.8); }

/* Badges */
.badge {
    position: absolute; top: 0.5rem; left: 0.5rem; z-index: 4;
    padding: 0.2rem 0.5rem; border-radius: 6px; font-size: 0.7rem; font-weight: 700;
}
.badge-hot { background: var(--badge-hot); }
.badge-new { background: var(--badge-new); }

/* Bookmark Button inside card */
.btn-bookmark {
    background: rgba(0,0,0,0.5); border: none; color: white;
    width: 28px; height: 28px; border-radius: 50%;
    cursor: pointer; backdrop-filter: blur(4px);
}
.btn-bookmark.saved i { color: #ec4899; } /* Pink heart */

/* --- Player View --- */
.player-view {
    position: fixed; top: 65px; left: 0; right: 0; bottom: 0;
    background: var(--bg-base); z-index: 200; overflow-y: auto;
}
.player-layout {
    display: flex; gap: 1.5rem; padding: 1.5rem; max-width: 1600px; margin: 0 auto;
}
.player-main { flex: 1; display: flex; flex-direction: column; gap: 1rem; }
.iframe-container {
    width: 100%; aspect-ratio: 16/9; background: #000; border-radius: var(--border-radius); overflow: hidden;
}
.iframe-container iframe { width: 100%; height: 100%; border: none; }
.player-actions {
    display: flex; justify-content: space-between; align-items: center; padding: 1rem; background: var(--bg-surface); border-radius: var(--border-radius);
}
.action-buttons { display: flex; gap: 0.8rem; }
.btn-primary, .btn-secondary {
    padding: 0.6rem 1.2rem; border: none; border-radius: 8px; font-weight: 600; cursor: pointer; transition: var(--transition);
}
.btn-primary { background: var(--accent-primary); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-search); color: white; }
.btn-secondary:hover { background: var(--bg-surface-hover); }

.player-sidebar { width: 300px; }
.side-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
.side-grid .game-card { aspect-ratio: 16/10; }

/* --- Loading --- */
.loading-state {
    display: flex; flex-direction: column; align-items: center; justify-content: center; height: 50vh; color: var(--text-muted); gap: 1rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .player-layout { flex-direction: column; }
    .player-sidebar { width: 100%; }
    .side-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}
@media (max-width: 768px) {
    .sidebar { position: fixed; transform: translateX(-100%); z-index: 50; height: 100%; }
    .sidebar.open { transform: translateX(0); width: 250px; }
    .search-container input { padding: 0.6rem 1rem 0.6rem 2.5rem; }
}