:root {
    /* Apple Dark Mode Colors */
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    
    /* Text */
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --text-muted: #6e6e73;
    
    /* Accent (Apple Blue) */
    --accent-primary: #0A84FF;
    --accent-primary-hover: #007aff;
    --accent-primary-light: rgba(10, 132, 255, 0.15);
    
    /* Status */
    --status-success: #32d74b;
    --status-warning: #ffd60a;
    --status-danger: #ff453a;
    
    /* Borders & Glass */
    --border-light: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(28, 28, 30, 0.7);
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "SF Mono", "Menlo", "Monaco", "Courier New", monospace;
    
    /* Spacing & Radius */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-normal: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.015em;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Blob Effect */
#cursor-blob {
    background: linear-gradient(to right, #0A84FF, #32d74b, #ff00ff);
    height: 400px;
    aspect-ratio: 1;
    position: fixed;
    left: 50%;
    top: 50%;
    translate: -50% -50%;
    border-radius: 50%;
    animation: rotate 20s infinite;
    opacity: 0.4;
    filter: blur(100px);
    z-index: -1;
    pointer-events: none;
    transition: left 0.2s ease-out, top 0.2s ease-out;
}

@keyframes rotate {
    from { rotate: 0deg; }
    50% { scale: 1 1.5; }
    to { rotate: 360deg; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.display-4 {
    font-weight: 700;
    letter-spacing: -0.04em;
}

.text-muted, .form-text {
    color: var(--text-secondary) !important;
}

.lead {
    color: var(--text-primary);
    opacity: 0.8;
}

p, li, dt, dd, .form-label, .form-check-label, small, strong {
    color: var(--text-primary);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    padding: 0.4rem 1rem;
    border-radius: 980px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.language-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    min-width: 150px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 1050;
}

.language-option {
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.language-option:hover, .language-option.active {
    background: rgba(255, 255, 255, 0.1);
}

/* Navbar (Glassmorphism) */
nav {
    background: var(--glass-bg) !important;
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 700;
    color: var(--text-primary) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary) !important;
}

/* Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-title {
    color: var(--text-primary) !important;
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-light);
    padding: 1.5rem;
    color: var(--text-primary) !important;
}

.card-body {
    padding: 1.5rem;
    color: var(--text-primary) !important;
}

/* Stat Cards */
.stat-card {
    background: rgba(28, 28, 30, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-fast);
}

.stat-card:hover {
    background: rgba(44, 44, 46, 0.8);
    transform: scale(1.02);
}

.stat-card h5 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.stat-card p {
    margin: 0;
    color: var(--text-primary);
}

.stat-card i {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    display: inline-block;
}

/* Buttons */
.btn {
    border-radius: 980px; /* Pill shape */
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--accent-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
    transform: scale(1.02);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #3a3a3c;
}

/* Forms */
.form-control, .form-select {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px var(--accent-primary-light);
    color: var(--text-primary);
}

.form-select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* Code Blocks */
pre {
    background: rgba(0, 0, 0, 0.5) !important;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 1rem;
    color: #e5e5ea;
}

/* Alerts */
.alert {
    color: var(--text-primary);
}
.alert-warning, .alert-warning * {
    color: #ffd60a !important; /* Proper contrast for warning */
}

/* Selection */
::selection {
    background-color: var(--accent-primary);
    color: white;
}

/* Badges */
.badge {
    border-radius: 980px;
    padding: 0.35em 0.8em;
    font-weight: 500;
}

.bg-success { background: var(--status-success) !important; color: #000; }
.bg-warning { background: var(--status-warning) !important; color: #000; }
.bg-danger { background: var(--status-danger) !important; color: #fff; }

/* Progress */
.progress {
    background-color: var(--bg-tertiary);
    border-radius: 980px;
}

.progress-bar {
    background-color: var(--accent-primary);
}

/* Table */
.table {
    color: var(--text-primary) !important;
    --bs-table-color: var(--text-primary);
    --bs-table-striped-color: var(--text-primary);
    --bs-table-active-color: var(--text-primary);
    --bs-table-hover-color: var(--text-primary);
}
.table td, .table th {
    border-color: var(--border-light) !important;
    background: transparent !important;
    color: var(--text-primary) !important;
}
.table td strong {
    color: var(--text-primary) !important;
}
.table-hover tbody tr:hover td {
    background: rgba(255, 255, 255, 0.05) !important;
    color: var(--text-primary) !important;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-light);
    padding: 2rem 0;
    margin-top: 3rem;
    color: var(--text-secondary);
}

/* Pagination (Apple Dark Style) */
.pagination {
    --bs-pagination-bg: rgba(255, 255, 255, 0.05);
    --bs-pagination-border-color: transparent;
    --bs-pagination-color: var(--text-primary);
    --bs-pagination-hover-bg: rgba(255, 255, 255, 0.1);
    --bs-pagination-hover-color: var(--text-primary);
    --bs-pagination-focus-bg: rgba(255, 255, 255, 0.1);
    --bs-pagination-active-bg: var(--accent-primary);
    --bs-pagination-active-border-color: var(--accent-primary);
    --bs-pagination-active-color: #fff;
    --bs-pagination-disabled-bg: transparent;
    --bs-pagination-disabled-color: var(--text-muted);
    --bs-pagination-disabled-border-color: transparent;
    gap: 0.25rem;
}

.page-link {
    border-radius: var(--radius-sm) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.page-item.active .page-link {
    box-shadow: 0 4px 12px var(--accent-primary-light);
}

.page-item.disabled .page-link {
    opacity: 0.5;
}

/* Glassmorphic Alerts */
.alert {
    border-radius: var(--radius-md) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    font-weight: 500;
    letter-spacing: 0.3px;
}

.alert-success {
    background-color: rgba(48, 209, 88, 0.15) !important;
    color: #30d158 !important;
    border: 1px solid rgba(48, 209, 88, 0.3) !important;
}

.alert-danger, .alert-error {
    background-color: rgba(255, 69, 58, 0.15) !important;
    color: #ff453a !important;
    border: 1px solid rgba(255, 69, 58, 0.3) !important;
}

.alert-warning {
    background-color: rgba(255, 214, 10, 0.15) !important;
    color: #ffd60a !important;
    border: 1px solid rgba(255, 214, 10, 0.3) !important;
}

.alert-info {
    background-color: rgba(10, 132, 255, 0.15) !important;
    color: #0a84ff !important;
    border: 1px solid rgba(10, 132, 255, 0.3) !important;
}

.alert .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
    opacity: 0.7;
}

.alert .btn-close:hover {
    opacity: 1;
}

/* Custom Mac-style Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}