:root {
    --primary-color: #0d6efd;
    --primary-hover: #0b5ed7;
    --secondary-color: #6c757d;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --text-light: #f8f9fa;
    --text-muted: #94a3b8;
    --accent-blue: #38bdf8;
    --border-color: #334155;
    --success-color: #10b981;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-light);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: #fff;
    font-weight: 700;
    letter-spacing: -0.025em;
}

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

.text-primary {
    color: var(--accent-blue) !important;
}

/* Navbar */
.navbar {
    background-color: rgba(15, 23, 42, 0.8) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
    font-weight: 800;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: #fff !important;
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    transition: all 0.2s;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}

.btn-outline-light {
    border-color: var(--border-color);
    color: var(--text-light);
}

.btn-outline-light:hover {
    background-color: var(--dark-card);
    border-color: var(--text-light);
}

/* Cards */
.card {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

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

.card-body {
    padding: 1.5rem;
}

/* Utilities */
.bg-dark-bg {
    background-color: var(--dark-bg) !important;
}

.bg-dark-card {
    background-color: var(--dark-card) !important;
}

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

.hover-scale {
    transition: transform 0.2s;
}
.hover-scale:hover {
    transform: scale(1.05);
}

.hover-lift {
    transition: transform 0.2s, box-shadow 0.2s;
}
.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.hover-text-light:hover {
    color: #fff !important;
}

.hover-bg-dark:hover {
    background-color: #0f172a !important; /* darker than card */
}

/* Tables */
.table {
    color: var(--text-light);
    border-color: var(--border-color);
}
.table-hover tbody tr:hover {
    color: #fff;
    background-color: rgba(255,255,255,0.05);
}

/* Forms */
.form-control, .form-select {
    background-color: var(--dark-bg);
    border-color: var(--border-color);
    color: var(--text-light);
}
.form-control:focus, .form-select:focus {
    background-color: var(--dark-bg);
    border-color: var(--accent-blue);
    color: #fff;
    box-shadow: 0 0 0 0.25rem rgba(56, 189, 248, 0.25);
}
    padding: 1.5rem;
}

/* Features */
.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

/* Footer */
.footer {
    background-color: var(--dark-card);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Forms */
.form-control {
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 0.75rem 1rem;
}

.form-control:focus {
    background-color: rgba(15, 23, 42, 0.8);
    border-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.15);
}

/* Utilities */
.bg-light {
    background-color: var(--dark-card) !important;
}

.bg-white {
    background-color: var(--dark-bg) !important;
}

.border-bottom {
    border-color: var(--border-color) !important;
}

.shadow-sm {
    box-shadow: 0 1px 3px rgba(0,0,0,0.3) !important;
}

.shadow {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.15) !important;
}

/* Hero Section */
.hero-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(13, 110, 253, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
    z-index: -1;
}

/* Badge */
.badge.bg-primary {
    background-color: rgba(13, 110, 253, 0.2) !important;
    color: var(--accent-blue) !important;
}

/* Tables */
.table {
    color: var(--text-light);
    border-color: var(--border-color);
}

.table > :not(caption) > * > * {
    background-color: transparent;
    border-bottom-color: var(--border-color);
    color: var(--text-light);
}

.table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* List Groups */
.list-group-item {
    background-color: var(--dark-card);
    border-color: var(--border-color);
    color: var(--text-light);
}

.list-group-item-action:hover, .list-group-item-action:focus {
    background-color: rgba(13, 110, 253, 0.1);
    color: #fff;
}

.list-group-item.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* Code */
code {
    color: var(--accent-blue);
}