:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --surface: #ffffff;
    --bg: #f1f5f9;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #059669;
    --radius: 0.75rem;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    --nav-gradient: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: "DM Sans", system-ui, -apple-system, sans-serif;
    min-height: 100vh;
}

.navbar-app {
    background: var(--nav-gradient);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.navbar-app .navbar-brand,
.navbar-app .nav-link {
    color: rgba(255, 255, 255, 0.92) !important;
}

.navbar-app .nav-link.active {
    color: #fff !important;
    font-weight: 600;
}

.navbar-app .nav-link:hover {
    color: #fff !important;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.card {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: var(--surface);
}

.card-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    border-radius: var(--radius) var(--radius) 0 0 !important;
}

.stat-card {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: var(--surface);
    transition: transform 0.15s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.form-check-input:checked {
    background-color: var(--success);
    border-color: var(--success);
}

.list-group-item {
    border-left: 3px solid transparent;
    transition: border-color 0.15s, background 0.15s;
}

.list-group-item:hover {
    border-left-color: var(--primary);
    background: #f8fafc;
}

.table a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
}

.table a:hover {
    text-decoration: underline;
}

.table-hover tbody tr:hover {
    background-color: #f8fafc;
}

.alert {
    border-radius: var(--radius);
    border: none;
}

/* Auth sayfalari */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nav-gradient);
    padding: 1.5rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    border-radius: var(--radius);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    border: none;
}

.auth-brand {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-brand i {
    font-size: 2.5rem;
    color: var(--primary);
}

.auth-brand h1 {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0.5rem 0 0;
    color: var(--text);
}

.auth-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0.25rem 0 0;
}

footer.app-footer {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.badge-category {
    background: #e2e8f0;
    color: #475569;
    font-weight: 500;
}