:root {
    --primary-gradient: linear-gradient(135deg, #3969ef 0%, #b539ef 100%);
    --accent-gradient: linear-gradient(135deg, #ff4d4d 0%, #f9cb28 100%);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[data-bs-theme="dark"] {
    --bg-main: #0B0B0B;
    --surface: #161616;
    --border-color: rgba(255, 255, 255, 0.08);
    --text-main: #f8f9fa;
    --text-muted: #aaaaaa;
    --glass-bg: rgba(22, 22, 22, 0.7);
    --input-bg: rgba(255, 255, 255, 0.05);
    --scrollbar-track: #0B0B0B;
    --scrollbar-thumb: #333;
    --scrollbar-thumb-hover: #444;
}

[data-bs-theme="light"] {
    --bg-main: #f8f9fa;
    --surface: #ffffff;
    --border-color: rgba(0, 0, 0, 0.08);
    --text-main: #1a1a1a;
    --text-muted: #6c757d;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --input-bg: rgba(0, 0, 0, 0.03);
    --scrollbar-track: #f8f9fa;
    --scrollbar-thumb: #ccc;
    --scrollbar-thumb-hover: #bbb;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-family);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color) !important;
}

/* Utility Gradients */
.bg-primary-gradient {
    background: var(--primary-gradient) !important;
    border: none !important;
}

/* Card Modernization */
.card {
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.hvr-grow {
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hvr-grow:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15), 0 0 15px rgba(57, 105, 239, 0.1);
}

/* Button Modernization */
.btn {
    border-radius: 8px;
    padding: 0.5rem 1.25rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
    box-shadow: 0 4px 15px rgba(57, 105, 239, 0.2);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(57, 105, 239, 0.4);
    opacity: 0.9;
    color: white;
}

/* Table Enhancements */
.table {
    color: inherit;
}

[data-bs-theme="dark"] .table {
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--border-color);
    color: #e0e0e0;
}

.table thead th {
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

.table-hover tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
    --bs-table-hover-bg: rgba(255, 255, 255, 0.02);
}

/* Navbar */
.navbar {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.navbar-brand {
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

/* Audio Player modern look */
audio {
    width: 100%;
    height: 40px;
    border-radius: 20px;
}

[data-bs-theme="dark"] audio {
    filter: invert(100%) hue-rotate(180deg) brightness(1.5);
}