/**
 * PBS DANCE SCHOOL - Styles Globaux
 * Couleur principale: Bleu foncé #1a237e
 * Couleur secondaire: Jaune pâle #fffef0
 * Design sobre et professionnel, responsive mobile
 */

/* ================================
   VARIABLES & RESET
   ================================ */
:root {
    --primary-color: #1a237e;
    --secondary-color: #fffef0;
    --text-dark: #212121;
    --text-light: #757575;
    --background: #fafafa;
    --white: #ffffff;
    --success: #4caf50;
    --warning: #ff9800;
    --danger: #f44336;
    --info: #2196f3;
    
    /* Alertes expiration */
    --alert-green: #4caf50;
    --alert-orange: #ff9800;
    --alert-red: #f44336;
    --alert-grey: #9e9e9e;
    
    /* Ombres */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================
   LAYOUT
   ================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.page-header h1 {
    font-size: 28px;
    font-weight: 600;
}

.page-header .user-info {
    margin-top: 10px;
    font-size: 14px;
    opacity: 0.9;
}

/* ================================
   NAVIGATION
   ================================ */
.nav-menu {
    background-color: var(--white);
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.nav-menu a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 6px;
    transition: background-color 0.3s;
    font-weight: 500;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--secondary-color);
}

.btn-logout {
    margin-left: auto;
    background-color: #ff6b35;
    color: var(--white);
}

.btn-logout:hover {
    background-color: #e85a28;
}

/* ================================
   BOUTONS
   ================================ */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #0d47a1;
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--text-light);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #616161;
}

.btn-success {
    background-color: var(--success);
    color: var(--white);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--white);
}

.btn-warning {
    background-color: var(--warning);
    color: var(--white);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ================================
   FORMULAIRES
   ================================ */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

select.form-control {
    cursor: pointer;
}

/* ================================
   CARTES
   ================================ */
.card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.card-header {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.card-body {
    color: var(--text-dark);
}

/* ================================
   BADGES & STATUTS
   ================================ */
.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: var(--success);
    color: var(--white);
}

.badge-info {
    background-color: var(--info);
    color: var(--white);
}

.badge-danger {
    background-color: var(--danger);
    color: var(--white);
}

.badge-warning {
    background-color: var(--warning);
    color: var(--white);
}

/* Badges d'expiration */
.badge-expiration {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.badge-exp-green {
    background-color: var(--alert-green);
    color: var(--white);
}

.badge-exp-orange {
    background-color: var(--alert-orange);
    color: var(--white);
}

.badge-exp-red {
    background-color: var(--alert-red);
    color: var(--white);
}

.badge-exp-grey {
    background-color: var(--alert-grey);
    color: var(--white);
}

/* ================================
   ALERTES
   ================================ */
.alert {
    padding: 15px 20px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background-color: #ffebee;
    color: #c62828;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background-color: #fff3e0;
    color: #ef6c00;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background-color: #e3f2fd;
    color: #1565c0;
    border-left: 4px solid var(--info);
}

/* ================================
   TABLES
   ================================ */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

thead {
    background-color: var(--primary-color);
    color: var(--white);
}

th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
}

tbody tr:hover {
    background-color: var(--secondary-color);
    transition: background-color 0.2s;
}

/* Checkbox dans les tables */
.table-checkbox {
    width: 40px;
    text-align: center;
}

.table-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ================================
   MODAL
   ================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--white);
    border-radius: 12px;
    padding: 30px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h2 {
    color: var(--primary-color);
    font-size: 24px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--danger);
}

/* ================================
   PLANNING / CALENDRIER
   ================================ */
.view-toggle {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.calendar-grid {
    display: grid;
    gap: 15px;
}

.course-card {
    background-color: var(--white);
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all 0.3s;
}

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

.course-card h3 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 18px;
}

.course-info {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 14px;
    color: var(--text-light);
}

.course-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ================================
   CRÉDITS
   ================================ */
.credit-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--alert-green);
}

.credit-card.exp-orange {
    border-left-color: var(--alert-orange);
}

.credit-card.exp-red {
    border-left-color: var(--alert-red);
}

.credit-card.exp-grey {
    border-left-color: var(--alert-grey);
    opacity: 0.6;
}

.credit-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.credit-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
}

.credit-amount {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
}

.credit-expiration {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-light);
}

/* ================================
   LOADING SPINNER
   ================================ */
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ================================
   RESPONSIVE
   ================================ */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .page-header {
        padding: 15px;
    }
    
    .page-header h1 {
        font-size: 22px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav-menu a {
        text-align: center;
    }
    
    .modal-content {
        padding: 20px;
        width: 95%;
    }
    
    table {
        font-size: 14px;
    }
    
    th, td {
        padding: 10px;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .course-info {
        flex-direction: column;
    }
}

/* ================================
   UTILITAIRES
   ================================ */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

.flex {
    display: flex;
}


/* ========================================
   BOUTON DÉCONNEXION - Blanc sur Orange
   (Spécificité renforcée pour écraser .nav-menu a)
   ======================================== */

.nav-menu .btn-logout {
    background: #ff6b35 !important;
    color: #ffffff !important;
    padding: 10px 18px !important;
    border-radius: 6px !important;
    text-decoration: none !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    display: inline-block !important;
    border: none !important;
    margin-left: auto !important;
}

.nav-menu .btn-logout:hover {
    background: #e85a28 !important;
    color: #ffffff !important;
    transform: scale(1.05) !important;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3) !important;
}