/* Custom styles for Program Management System - Modern UI Enhancements */

/* ===== CSS Variables for theming ===== */
:root {
    --pm-primary: #4361ee;
    --pm-primary-dark: #3a56d4;
    --pm-secondary: #6c757d;
    --pm-success: #2ec4b6;
    --pm-info: #4cc9f0;
    --pm-warning: #f77f00;
    --pm-danger: #ef233c;
    --pm-body-bg: #f0f2f5;
    --pm-card-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --pm-border-radius: 0.75rem;
    --pm-transition: all 0.2s ease;
}

/* ===== Global ===== */
body {
    background-color: var(--pm-body-bg);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ===== Navbar ===== */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.6rem 1rem;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
}

.navbar .nav-link {
    padding: 0.5rem 0.9rem;
    border-radius: 0.5rem;
    transition: var(--pm-transition);
    font-weight: 500;
    font-size: 0.9rem;
}

.navbar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

/* ===== Cards ===== */
.card {
    border: none;
    border-radius: var(--pm-border-radius);
    box-shadow: var(--pm-card-shadow);
    transition: var(--pm-transition);
}

.card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.card-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    background-color: transparent;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* ===== Stat Cards on Dashboard ===== */
.card.bg-primary,
.card.bg-success,
.card.bg-info,
.card.bg-warning {
    border-radius: var(--pm-border-radius);
    border: none;
}

.card.bg-primary {
    background: linear-gradient(135deg, var(--pm-primary), #7209b7) !important;
}

.card.bg-success {
    background: linear-gradient(135deg, var(--pm-success), #06d6a0) !important;
}

.card.bg-info {
    background: linear-gradient(135deg, var(--pm-info), #4895ef) !important;
}

.card.bg-warning {
    background: linear-gradient(135deg, var(--pm-warning), #fcbf49) !important;
}

/* ===== Buttons ===== */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.45rem 1rem;
    transition: var(--pm-transition);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

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

.btn-sm {
    padding: 0.3rem 0.7rem;
    font-size: 0.82rem;
}

.btn-group .btn:hover {
    transform: none;
}

/* ===== Tables ===== */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--pm-secondary);
    border-bottom-width: 2px;
}

.table-hover tbody tr:hover {
    background-color: rgba(67, 97, 238, 0.04);
}

/* ===== Badges ===== */
.badge {
    font-weight: 500;
    padding: 0.4em 0.65em;
    border-radius: 0.5rem;
}

/* ===== Breadcrumbs ===== */
.breadcrumb {
    background: transparent;
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

nav[aria-label="breadcrumb"] {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

/* ===== Forms ===== */
.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid #dee2e6;
    padding: 0.55rem 0.85rem;
    transition: var(--pm-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--pm-primary);
    box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.15);
}

.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

/* ===== Alerts ===== */
.alert {
    border-radius: var(--pm-border-radius);
    border: none;
}

/* ===== Login Page ===== */
.card.shadow {
    border-radius: var(--pm-border-radius);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12) !important;
}

/* ===== Footer ===== */
footer {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    background-color: #fff !important;
}

footer p {
    font-size: 0.85rem;
}

/* ===== Page Headings ===== */
h1, .h1, h2, .h2 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 i, h2 i, .h2 i {
    opacity: 0.7;
}

/* ===== Nav Tabs ===== */
.nav-tabs .nav-link {
    border-radius: 0.5rem 0.5rem 0 0;
    font-weight: 500;
    transition: var(--pm-transition);
}

.nav-tabs .nav-link.active {
    border-color: var(--pm-primary) var(--pm-primary) #fff;
    color: var(--pm-primary);
}

/* ===== Dropdown Menus ===== */
.dropdown-menu {
    border: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border-radius: var(--pm-border-radius);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: 0.375rem;
    padding: 0.45rem 0.85rem;
    transition: var(--pm-transition);
}

.dropdown-item:hover {
    background-color: rgba(67, 97, 238, 0.08);
}

/* ===== Empty States ===== */
.text-center.py-5 i[style*="font-size: 3rem"] {
    opacity: 0.3;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* ===== Responsive Improvements ===== */
@media (max-width: 768px) {
    .card {
        border-radius: 0.5rem;
    }

    .btn {
        padding: 0.4rem 0.8rem;
    }
}