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

:root {
    --primary: #00A3A6;
    --primary-light: #33BABC;
    --primary-dark: #007C7F;
    --secondary: #006669;
    --bg-light: #F2FAFA;
    --bg-white: #ffffff;
    --text-dark: #173436;
    --text-gray: #4E6E70;
    --border: #CFE8E9;
    --success: #27ae60;
    --warning: #f39c12;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-dark) 0%, #004F51 100%);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* En-tête */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

.header-top {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
}

.language-switch {
    display: inline-flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 5px;
}

.lang-btn {
    border: none;
    background: transparent;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: 999px;
    padding: 7px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.brand-logo-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 18px;
}

.brand-logo {
    width: min(280px, 78%);
    height: auto;
    display: block;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.95;
    margin-bottom: 20px;
}

.legal-note {
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 20px;
    border-radius: 6px;
    font-size: 0.9rem;
    border-left: 4px solid var(--secondary);
}

/* Formulaire */
.form-main {
    padding: 40px 30px;
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h2 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.form-section h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
    border-left: 4px solid var(--primary);
    padding-left: 12px;
}

.intro-section {
    background: #F7FDFD;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
}

.intro-section p {
    margin-bottom: 10px;
}

.intro-list {
    margin: 12px 0 10px 20px;
    color: var(--text-dark);
}

.intro-list li {
    margin-bottom: 6px;
}

.intro-invoice {
    font-weight: 600;
    color: var(--primary-dark);
}

.rgpd-section {
    background: #F9FDFD;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
}

.rgpd-checkbox {
    margin-bottom: 18px;
    align-items: flex-start;
}

.rgpd-checkbox input[type="checkbox"] {
    margin-top: 2px;
    flex: 0 0 auto;
}

.legal-list {
    margin: 10px 0 0 18px;
    color: var(--text-dark);
}

.legal-list li {
    margin-bottom: 8px;
}

/* Groupes de formulaire */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 163, 166, 0.18);
    background: var(--bg-light);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: #e74c3c;
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* Mise en valeur : retrait sur place (livraison gratuite) */
.pickup-highlight {
    align-items: flex-start;
    background: linear-gradient(135deg, #EAFBF3 0%, #F2FAFA 100%);
    border: 2px solid var(--success);
    border-radius: 12px;
    padding: 16px 18px;
    box-shadow: 0 2px 10px rgba(39, 174, 96, 0.15);
}

.pickup-highlight input[type="checkbox"] {
    margin-top: 3px;
    accent-color: var(--success);
}

.pickup-highlight .pickup-title {
    display: block;
    font-weight: 700;
    color: #1E8449;
}

.pickup-highlight .pickup-note {
    display: block;
    margin-top: 4px;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--text-gray);
}

.pickup-highlight .pickup-badge {
    display: inline-block;
    margin-left: 8px;
    background: var(--success);
    color: white;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 20px;
    vertical-align: middle;
}

/* Catégories de vins (sections déroulantes) */
.wine-category {
    margin-bottom: 15px;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.wine-category h3 {
    margin: 0;
    padding: 14px 16px;
    background: var(--bg-light);
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    transition: background 0.2s ease;
}

.wine-category h3:hover {
    background: #E6F5F5;
}

.wine-category h3::after {
    content: '\25B8'; /* ▸ */
    color: var(--primary);
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.wine-category.open h3::after {
    transform: rotate(90deg);
}

.wine-grid {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 16px;
}

.wine-category.open .wine-grid {
    display: grid;
}

.wine-item {
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    background: var(--bg-light);
    transition: all 0.3s ease;
    cursor: pointer;
}

.wine-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 124, 127, 0.16);
    background: white;
}

.wine-name {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 6px;
    font-size: 0.95rem;
}

.wine-price {
    color: var(--secondary);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.wine-price small {
    color: var(--text-gray);
    font-size: 0.78rem;
    font-weight: 600;
}

.wine-discount-price {
    color: var(--warning);
    font-size: 0.88rem;
    font-weight: 700;
    margin: -4px 0 12px;
}

.wine-unit-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
}

.toggle-btn {
    border: 2px solid var(--border);
    border-radius: 6px;
    background: white;
    color: var(--text-dark);
    padding: 7px 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.toggle-btn:hover {
    border-color: var(--primary);
}

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

.wine-unit {
    color: var(--text-gray);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.wine-input {
    display: flex;
    align-items: center;
    gap: 8px;
}

.wine-input input {
    width: 60px;
    padding: 8px;
    border: 2px solid var(--border);
    border-radius: 4px;
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
}

.wine-input input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 163, 166, 0.16);
}

.wine-input label {
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* Résumé */
.summary-section {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    border: none;
}

.summary-box {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border: 2px solid var(--border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-weight: 500;
}

.summary-row:last-child {
    border-bottom: none;
}

.summary-row span:first-child {
    color: var(--text-gray);
}

.summary-row span:last-child {
    color: var(--text-dark);
    font-weight: 600;
}

.summary-row.info span:last-child {
    color: var(--primary);
}

.summary-row.warning {
    color: var(--warning);
}

.summary-row.warning span:last-child {
    color: var(--warning);
}

.discount-details {
    border-top: 1px solid var(--border);
    padding: 14px 0 4px;
}

.discount-details h3 {
    border-left: none;
    color: var(--warning);
    font-size: 0.98rem;
    margin: 0 0 8px;
    padding-left: 0;
}

.discount-detail-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    padding: 7px 0;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.discount-prices {
    display: inline-flex;
    align-items: baseline;
    justify-content: flex-end;
    gap: 8px;
    white-space: nowrap;
}

.discount-prices s {
    color: var(--text-gray);
    font-size: 0.84rem;
}

.discount-prices strong {
    color: var(--warning);
}

.summary-row.total {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 16px;
    margin: 10px -20px -20px -20px;
    border-radius: 0 0 8px 8px;
    font-size: 1.3rem;
    border-bottom: none;
}

.summary-row.total span:first-child {
    color: white;
}

.summary-row.total span:last-child {
    color: #E8FFFE;
    font-size: 1.5rem;
}

/* Info Box */
.info-box {
    background: white;
    border-left: 4px solid var(--primary);
    padding: 20px;
    border-radius: 6px;
    line-height: 1.8;
}

.info-box p {
    margin-bottom: 10px;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.info-box p strong {
    color: var(--primary);
}

/* Boutons */
.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 102, 105, 0.32);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 102, 105, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-reload {
    padding: 12px 30px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-reload:hover {
    background: var(--primary-light);
}

/* Message de succès */
.success-message {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.success-content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

.success-content h2 {
    color: var(--success);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.success-content p {
    color: var(--text-gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .brand-logo {
        width: min(220px, 82%);
    }

    .header {
        padding: 30px 20px;
    }

    .header-top {
        justify-content: center;
        margin-bottom: 12px;
    }

    .form-main {
        padding: 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .wine-grid {
        grid-template-columns: 1fr;
    }

    .summary-box {
        padding: 15px;
    }

    .success-content {
        padding: 30px 20px;
        margin: 20px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .brand-logo {
        width: min(190px, 88%);
    }

    .form-main {
        padding: 15px;
    }

    .form-section h2 {
        font-size: 1.3rem;
    }

    .form-section h3 {
        font-size: 1rem;
    }
}