@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bs-font-sans-serif: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --primary-color: #2c3e50;
    --secondary-color: #95a5a6;
    --accent-color: #3498db;
    --background-color: #f8f9fa;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --hover-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    background-color: var(--background-color);
    color: #333;
    font-family: var(--bs-font-sans-serif);
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.display-title {
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* Navbar */
.navbar {
    background-color: #fff;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.nav-link {
    font-weight: 500;
    color: #555;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color) !important;
}

/* Cards */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    background-color: #fff;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #1a252f;
    border-color: #1a252f;
}

/* Tables */
.table-custom {
    background-color: #fff;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.table-custom thead th {
    background-color: #f1f5f9;
    color: #475569;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border: none;
    padding: 1rem;
}

.table-custom tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
    color: #334155;
}

.table-custom tbody tr:last-child td {
    border-bottom: none;
}

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

/* Badges */
.badge {
    padding: 0.5em 0.75em;
    font-weight: 600;
    border-radius: 0.375rem;
}

/* Forms */
.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    padding: 0.625rem 0.75rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

/* Footer */
.footer {
    padding: 2rem 0;
    color: #64748b;
    font-size: 0.875rem;
    text-align: center;
    margin-top: auto;
}

#main {
    min-height: calc(100vh - 160px);
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
}

/* Utilities */
.text-muted-light {
    color: #94a3b8 !important;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), #34495e);
}