:root {
        --primary-blue: #007bff;
        --primary-green: #52e0a1;
        --bg-page: #e9f1f2;
        --text-dark: #333;
        --text-gray: #777;
        --white: #ffffff;
    }
    
    body {
        font-family: 'Poppins', sans-serif;
        background-color: var(--bg-page);
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 100vh;
        margin: 0;
        color: var(--text-dark);
    }
    
    .booking-container {
        width: 95%;
        max-width: 850px;
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    /* --- BARRE DE DISPONIBILITÉ DYNAMIQUE --- */
    
    .availability-dropdown {
        background: var(--white);
        padding: 15px 25px;
        border-radius: 12px;
        border: 1px solid #c8e6e9;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
        cursor: pointer;
        transition: all 0.3s ease;
        overflow: hidden;
        max-height: 55px;
        /* Fermé par défaut */
    }
    
    .availability-dropdown.open {
        max-height: 400px;
        /* S'ouvre pour montrer la semaine */
    }
    
    .status-header {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 12px;
        font-style: italic;
        color: var(--text-gray);
    }
    
    .status-header b {
        color: var(--primary-blue);
        font-style: normal;
    }
    
    .weekly-schedule {
        margin-top: 15px;
        padding-top: 15px;
        border-top: 1px dashed #d1e8ea;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        font-size: 0.9rem;
    }
    
    .day-row {
        display: flex;
        justify-content: space-between;
        padding: 2px 0;
    }
    /* --- CARTE DE RÉSERVATION --- */
    
    .booking-card {
        background: var(--white);
        display: flex;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1);
        border-bottom: 6px solid #444;
        /* Ombre dure style "bouton" */
    }
    /* Section Gauche : Calendrier */
    
    .calendar-section {
        background-color: #f8f9fa;
        padding: 30px;
        flex: 1.3;
        border-right: 1px solid #eee;
    }
    
    .calendar-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 25px;
    }
    
    .nav-btn {
        background: var(--white);
        border: none;
        width: 38px;
        height: 38px;
        border-radius: 50%;
        cursor: pointer;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        transition: 0.2s;
    }
    
    .nav-btn:hover {
        background: var(--primary-blue);
        color: white;
    }
    
    .current-month {
        font-weight: 700;
        font-size: 1.2rem;
    }
    
    .calendar-grid {
        display: grid;
        grid-template-columns: repeat(7, 1fr);
        gap: 8px;
        text-align: center;
    }
    
    .day-label {
        font-weight: 600;
        color: #666;
        font-size: 0.8rem;
        padding-bottom: 10px;
    }
    
    .calendar-day {
        padding: 12px 0;
        background: var(--white);
        border-radius: 8px;
        cursor: pointer;
        font-size: 0.9rem;
        transition: 0.2s;
    }
    
    .calendar-day:hover:not(.empty) {
        background: #eef2ff;
        color: var(--primary-blue);
    }
    
    .calendar-day.active {
        background-color: var(--primary-blue) !important;
        color: white !important;
        font-weight: bold;
        transform: scale(1.05);
    }
    
    .calendar-day.empty {
        background: transparent;
        cursor: default;
    }
    /* Section Droite : Confirmation */
    
    .confirmation-section {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 40px;
        text-align: center;
    }
    
    .logo {
        font-size: 2.2rem;
        margin: 0 0 40px 0;
        color: #2e9df7;
        letter-spacing: -1px;
    }
    
    .logo span {
        color: var(--primary-green);
    }
    
    .confirm-btn {
        background: linear-gradient(to bottom, #3498db, #2980b9);
        color: white;
        border: none;
        padding: 16px 28px;
        border-radius: 14px;
        font-size: 1rem;
        font-weight: 500;
        font-style: italic;
        cursor: pointer;
        box-shadow: 0 6px 0 #1c5980, 0 12px 20px rgba(0, 0, 0, 0.2);
        transition: all 0.1s;
    }
    
    .confirm-btn:active {
        transform: translateY(4px);
        box-shadow: 0 2px 0 #1c5980;
    }
    /* --- RESPONSIVE --- */
    
    @media (max-width: 768px) {
        .booking-card {
            flex-direction: column;
        }
        .calendar-section {
            border-right: none;
            border-bottom: 1px solid #eee;
        }
        .weekly-schedule {
            grid-template-columns: 1fr;
        }
    }