@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f0f1e;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-hover: #252543;
    --accent-purple: #667eea;
    --accent-blue: #4facfe;
    --accent-green: #43e97b;
    --accent-orange: #fa709a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --border-color: #2a2a4a;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ============ SIDEBAR ============ */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header i {
    font-size: 28px;
}

.sidebar-header h2 {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.2s ease;
    font-weight: 500;
    position: relative;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-purple);
    color: white;
}

.nav-item i {
    font-size: 18px;
    width: 20px;
}

.badge {
    margin-left: auto;
    background: var(--accent-orange);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.storage-info {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: 12px;
}

.storage-text {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.storage-bar {
    height: 6px;
    background: var(--bg-hover);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}

.storage-fill {
    height: 100%;
    width: 65%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 3px;
}

.storage-label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ============ MAIN CONTENT ============ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.top-bar {
    height: 70px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.search-container {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-container i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-container input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s ease;
}

.search-container input:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: var(--bg-hover);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.icon-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-purple);
}

.notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--accent-orange);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--accent-purple);
    cursor: pointer;
}

/* ============ CONTENT WRAPPER ============ */
.content-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
    background: var(--bg-primary);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--accent-purple);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-icon.purple { background: linear-gradient(135deg, #667eea, #764ba2); }
.stat-icon.blue { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.stat-icon.green { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.stat-icon.orange { background: linear-gradient(135deg, #fa709a, #fee140); }

.stat-info h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Action Panel */
.action-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 32px;
}

.action-panel h2 {
    font-size: 20px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: var(--bg-hover);
}

.form-group textarea {
    resize: vertical;
    min-height: 90px;
}

.btn-primary {
    width: 100%;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

/* Library Section */
.library-section {
    margin-top: 16px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.view-toggle {
    display: flex;
    gap: 8px;
}

.view-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-btn:hover,
.view-btn.active {
    background: var(--accent-purple);
    color: white;
    border-color: var(--accent-purple);
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.game-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.game-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-purple);
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 12px;
}

.game-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.game-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.meta-tag {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
}

.game-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.game-actions {
    display: flex;
    gap: 10px;
}

.btn-edit,
.btn-delete {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-edit {
    background: var(--bg-tertiary);
    color: var(--accent-green);
    border: 1px solid var(--border-color);
}

.btn-edit:hover {
    background: var(--accent-green);
    color: white;
}

.btn-delete {
    background: var(--bg-tertiary);
    color: var(--accent-orange);
    border: 1px solid var(--border-color);
}

.btn-delete:hover {
    background: var(--accent-orange);
    color: white;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
}

.empty-state i {
    font-size: 64px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* Responsive */
@media (max-width: 968px) {
    .sidebar {
        width: 70px;
    }
    
    .sidebar-header h2,
    .nav-item span,
    .badge,
    .sidebar-footer {
        display: none;
    }
    
    .sidebar-header {
        justify-content: center;
    }
    
    .nav-item {
        justify-content: center;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
}
/* Page Content Styles */
.page-content {
    display: none;
}

.page-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 32px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* Stats Detailed */
.stats-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.stat-detail-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
}

.stat-detail-card h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.stat-bar {
    margin-bottom: 16px;
}

.stat-bar-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 14px;
}

.stat-bar-fill-container {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.stat-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 4px;
    transition: width 0.5s ease;
}

.top-game-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 8px;
}

.top-game-item:last-child {
    margin-bottom: 0;
}

.favorite-star {
    cursor: pointer;
    font-size: 20px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.favorite-star.active {
    color: #ffd700;
}

.favorite-star:hover {
    transform: scale(1.2);
}