:root {
    /* Modern Color Palette */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    /* Backgrounds */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --bg-input: #f1f5f9;

    /* Text */
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;

    /* Shadows & Borders */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --border-color: #e2e8f0;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    padding-top: 80px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.025em;
}

/* Navbar Customization */
.navbar {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    letter-spacing: -0.03em;
}

.nav-link {
    font-weight: 500;
    color: var(--text-muted) !important;
    transition: all 0.2s ease;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(37, 99, 235, 0.05);
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

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

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.01em;
    line-height: 1.5;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.3);
}

/* Forms */
.form-control,
.form-select {
    background-color: #ffffff;
    border: 2px solid #cbd5e1;
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    background-color: #fff;
    border-color: var(--primary-color);
    border-width: 2px;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* Tables */
.table {
    margin-bottom: 0;
    border: 2px solid #cbd5e1;
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    background-color: var(--bg-body);
    border-bottom: 2px solid #94a3b8;
    border-right: 1px solid var(--border-color);
    padding: 1rem;
}

.table td {
    padding: 1rem;
    vertical-align: middle;
    color: var(--text-main);
    border-bottom: 1px solid #cbd5e1;
    border-right: 1px solid var(--border-color);
}

.table-bordered {
    border: 2px solid #cbd5e1;
}

.table-bordered th,
.table-bordered td {
    border: 1px solid #cbd5e1;
}

/* Footer */
footer {
    background-color: #fff !important;
    border-top: 1px solid var(--border-color) !important;
}

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

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.bg-light {
    background-color: var(--bg-body) !important;
}