:root {
    --bg-body: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-card-hover: rgba(30, 41, 59, 0.9);
    --text-main: #f8fafc;
    --text-muted: #cbd5e1;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #8b5cf6;
    --border-color: rgba(148, 163, 184, 0.1);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

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

.navbar-brand {
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Cards (Glassmorphism) */
.card {
    background-color: var(--bg-card);
    border: var(--glass-border);
    backdrop-filter: blur(12px);
    border-radius: 1rem;
    box-shadow: var(--glass-shadow);
    transition: transform 0.2s, background-color 0.2s;
    color: #fff;
}

.card-title, .card-text, .card-body {
    color: #fff;
}

.card:hover {
    transform: translateY(-2px);
    background-color: var(--bg-card-hover);
}

.list-group-item {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-main);
}

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

label, .form-label {
    color: #fff !important;
    font-weight: 500;
}

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

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    border: none;
    font-weight: 600;
    padding: 0.6rem 1.2rem;
    border-radius: 0.5rem;
}

.btn-primary:hover {
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-muted);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
}

/* Forms */
.form-control, .form-select {
    background-color: rgba(15, 23, 42, 0.5);
    border: var(--glass-border);
    color: #fff;
    border-radius: 0.5rem;
}

.form-control:focus, .form-select:focus {
    background-color: rgba(15, 23, 42, 0.8);
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
    color: #fff !important;
}

.form-control, .form-select {
    color: #fff !important;
}

/* Alerts */
.alert-info {
    background-color: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

/* Badges */
.badge {
    font-weight: 600;
    letter-spacing: 0.025em;
}

.bg-light.text-primary {
    background-color: rgba(59, 130, 246, 0.2) !important;
    color: #60a5fa !important;
}

/* Footer */
footer a:hover {
    color: var(--primary) !important;
}

/* Utilities */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}