/**
 * CSS personalizat pentru aplicația Opțiuni Studenți
 * Bootstrap 5.3.0 + stiluri custom
 */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
}

/* Navbar custom */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

/* Sidebar */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1rem;
    margin: 0.25rem 0;
    border-radius: 0.5rem;
    transition: all 0.3s;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Cards */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 0.75rem 0.75rem 0 0 !important;
    padding: 1rem 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
}

/* Tables */
.table {
    border-radius: 0.5rem;
    overflow: hidden;
}

.table thead th {
    background: var(--primary-color);
    color: white;
    border: none;
    font-weight: 600;
}

/* Forms */
.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid #dee2e6;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Badges */
.badge {
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    font-weight: 500;
}

/* Alerts */
.alert {
    border-radius: 0.75rem;
    border: none;
}

/* Modal */
.modal-content {
    border-radius: 0.75rem;
    border: none;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 0.75rem 0.75rem 0 0;
}

/* Utility classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-sm-custom {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Forțează permanența alert-urilor informative */
.alert-info.alert-permanent {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}