:root {
    --bg-color: #EDEAE4;
    --text-color: #2D2D2D;
    --text-light: #5A5A5A;
    --accent-color: #C6B09B;
    --accent-hover: #B39D87;
    --white: #FFFFFF;
    --border-color: #D4D0C8;
    --error-color: #D64545;
    --success-color: #4CAF50;
}

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

/* Mobile-friendly: tap highlight, no text size adjust, prevent overflow */
html {
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}
body {
    font-family: 'Lato', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    min-height: -webkit-fill-available;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    /* Safe area for iPhone notch and home indicator */
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    padding-bottom: env(safe-area-inset-bottom);
}
/* Cleaner tap feedback on touch devices */
a, button, .treatment-card, .time-slot, .calendar-day:not(.empty):not(.disabled),
.step, .category-header, .amount-btn {
    -webkit-tap-highlight-color: rgba(198, 176, 155, 0.2);
    tap-highlight-color: rgba(198, 176, 155, 0.2);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
}

.site-header {
    background: var(--white);
    padding: 15px 0;
    padding-top: max(15px, env(safe-area-inset-top));
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo img {
    max-height: 60px;
    width: auto;
}

.header-hours ul {
    display: flex;
    gap: 15px;
    list-style: none;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.header-hours li {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.8rem;
    line-height: 1.3;
}

.header-hours .day {
    font-weight: 700;
    color: var(--accent-color);
}

.header-hours .hours {
    color: var(--text-light);
}

.tagline {
    color: var(--text-light);
    margin-top: 10px;
    font-size: 1.1rem;
}

.booking-app {
    flex: 1;
    padding: 40px 0;
}

.booking-steps {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: var(--white);
    border-radius: 30px;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.step.active {
    opacity: 1;
    background: var(--accent-color);
    color: var(--white);
}

.step.completed {
    opacity: 1;
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step.active .step-number {
    background: var(--white);
    color: var(--accent-color);
}

.step.completed .step-number {
    background: var(--success-color);
    color: var(--white);
}

.step-label {
    font-size: 0.9rem;
    font-weight: 600;
}

.booking-step-content {
    display: none;
}

.booking-step-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.booking-step-content h2 {
    text-align: center;
    margin-bottom: 30px;
    font-weight: 400;
    font-size: 1.8rem;
}

.treatment-category {
    margin-bottom: 15px;
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
}

.category-header {
    width: 100%;
    display: flex;
    align-items: center;
    padding: 20px 25px;
    background: var(--white);
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.3s ease;
}

.category-header:hover {
    background: var(--bg-color);
}

.category-name {
    color: var(--accent-color);
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
    flex: 1;
}

.category-count {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-right: 15px;
}

.category-toggle {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--accent-color);
    transition: all 0.3s ease;
}

.treatment-category:not(.collapsed) .category-toggle {
    transform: rotate(45deg);
}

.treatments-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 15px 15px;
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.3s ease;
    opacity: 1;
}

.treatment-category.collapsed .treatments-list {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
}

.treatment-card {
    background: var(--white);
    padding: 20px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.treatment-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.treatment-card.selected {
    border-color: var(--accent-color);
    background: rgba(198, 176, 155, 0.1);
}

.treatment-info {
    flex: 1;
    min-width: 0;
}

.treatment-name {
    font-size: 1rem;
    font-weight: 600;
    display: block;
}

.treatment-description {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 4px;
    margin-bottom: 0;
}

.treatment-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    flex-shrink: 0;
    white-space: nowrap;
}

.treatment-duration {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 400;
}

.treatment-price {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-color);
}

.back-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1rem;
    margin-bottom: 20px;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.back-btn:hover {
    color: var(--text-color);
}

.selected-treatment-summary {
    background: var(--white);
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.summary-label {
    color: var(--text-light);
}

#selectedTreatmentName {
    font-weight: 600;
}

#selectedTreatmentPrice {
    color: var(--accent-color);
    font-weight: 700;
    margin-left: auto;
}

.calendar-container {
    background: var(--white);
    border-radius: 15px;
    padding: 25px;
    max-width: 500px;
    margin: 0 auto;
}

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

.calendar-header h3 {
    font-weight: 600;
}

.calendar-nav {
    background: var(--bg-color);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.calendar-nav:hover:not(:disabled) {
    background: var(--accent-color);
    color: var(--white);
}

.calendar-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    margin-bottom: 10px;
}

.calendar-weekdays span {
    text-align: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-light);
    padding: 10px 0;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.calendar-day:not(.empty):not(.disabled):hover {
    background: var(--bg-color);
}

.calendar-day.selected {
    background: var(--accent-color);
    color: var(--white);
}

.calendar-day.disabled {
    color: var(--border-color);
    cursor: not-allowed;
}

.calendar-day.empty {
    cursor: default;
}

.time-slots-container {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.time-slots-container h3 {
    text-align: center;
    margin-bottom: 20px;
    font-weight: 400;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.time-slot {
    background: var(--white);
    border: 2px solid var(--border-color);
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.time-slot:hover {
    border-color: var(--accent-color);
}

.time-slot.selected {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--white);
}

.no-slots {
    text-align: center;
    color: var(--text-light);
    padding: 20px;
}

.booking-summary {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 30px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.booking-summary h3 {
    margin-bottom: 20px;
    font-weight: 600;
}

.booking-summary-actions {
    text-align: center;
    margin: 1.5rem 0 2rem;
}
.booking-summary-actions .btn {
    margin-bottom: 0.5rem;
}
.booking-summary-actions-note {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.summary-row.total {
    font-weight: 700;
    font-size: 1.2rem;
    margin-top: 10px;
    padding-top: 15px;
    border-top: 2px solid var(--border-color);
}

.booking-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-light);
    font-size: 0.85rem;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background: var(--border-color);
}

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

.btn-danger:hover {
    background: #C13C3C;
}

.btn-block {
    display: block;
    width: 100%;
}

.confirmation-box {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.confirmation-icon {
    width: 80px;
    height: 80px;
    background: var(--success-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 20px;
}

.confirmation-box.cancelled .confirmation-icon {
    background: var(--text-light);
}

.confirmation-box h2 {
    margin-bottom: 10px;
}

.confirmation-message {
    color: var(--text-light);
    margin-bottom: 30px;
}

.confirmation-details {
    text-align: left;
    background: var(--bg-color);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
}

.detail-label {
    color: var(--text-light);
}

.detail-value {
    font-weight: 600;
}

.detail-value.reference {
    font-family: monospace;
    font-size: 1.1rem;
    color: var(--accent-color);
}

.confirmation-note {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.confirmation-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.site-footer {
    background: var(--white);
    padding: 30px 0;
    margin-top: auto;
}

.site-footer .footer-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.site-footer .cancel-link {
    margin: 0;
    text-align: left;
    color: var(--text-light);
    font-size: 0.9rem;
}

.cancel-link {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

.cancel-link a {
    color: var(--accent-color);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(237, 234, 228, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.alert-error {
    background: #FDEAEA;
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.alert-success {
    background: #E8F5E9;
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.cancel-page {
    flex: 1;
    padding: 40px 0;
}

.cancel-form-container {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    max-width: 500px;
    margin: 0 auto;
}

.cancel-form-container h2 {
    text-align: center;
    margin-bottom: 10px;
}

.cancel-form-container > p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 30px;
}

.lookup-form {
    margin-bottom: 20px;
}

.help-text {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

.policy-warning {
    background: #FFF8E1;
    border: 1px solid #FFD54F;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.policy-warning h4 {
    color: #F57C00;
    margin-bottom: 10px;
}

.policy-warning p {
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.policy-checkbox {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.policy-checkbox input {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.policy-checkbox label {
    font-size: 0.95rem;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.policy-note {
    background: #FFF8E1;
    padding: 15px;
    border-radius: 10px;
    font-size: 0.9rem;
    color: #F57C00;
    margin-bottom: 20px;
}

/* ---------- Mobile & tablet (768px and below) ---------- */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 10px;
    }
    
    .header-hours ul {
        justify-content: center;
        gap: 10px;
    }
    
    .header-hours li {
        font-size: 0.75rem;
    }
    
    .booking-app {
        padding: 24px 0;
    }

    .booking-summary,
    .booking-form,
    .calendar-container {
        max-width: 100%;
    }

    .booking-step-content h2 {
        font-size: 1.5rem;
    }
}

/* ---------- Small phones: touch targets & layout ---------- */
@media (max-width: 480px) {
    .container {
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }
    
    .logo img {
        max-height: 48px;
    }
    
    /* Minimum touch target ~44px for primary actions */
    .btn {
        min-height: 48px;
        padding: 14px 24px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        min-height: 48px;
        padding: 14px 16px;
        font-size: 16px; /* prevents iOS zoom on focus */
    }
    
    .form-group textarea {
        min-height: 100px;
    }
    
    .time-slot {
        min-height: 48px;
        padding: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .calendar-nav {
        width: 44px;
        height: 44px;
    }
    
    .category-header {
        min-height: 56px;
        padding: 16px 20px;
    }
    
    .treatment-card {
        min-height: 56px;
        padding: 16px;
    }
    
    .booking-step-content h2 {
        font-size: 1.4rem;
        margin-bottom: 24px;
    }
}

/* Voucher Section */
.voucher-section {
    margin: 20px 0;
    padding: 20px;
    background: var(--bg-color);
    border-radius: 10px;
}

.voucher-input-group {
    display: flex;
    gap: 10px;
}

.voucher-input-group input {
    flex: 1;
    text-transform: uppercase;
}

.voucher-input-group .btn {
    white-space: nowrap;
}

.voucher-message {
    margin-top: 10px;
    padding: 10px;
    border-radius: 5px;
    font-size: 0.9rem;
}

.voucher-message.success {
    background: #e8f5e9;
    color: #388e3c;
}

.voucher-message.error {
    background: #ffebee;
    color: #d32f2f;
}

.payment-summary {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
}

.payment-summary .summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
}

.payment-summary .summary-row.total {
    border-top: 2px solid var(--accent-color);
    margin-top: 10px;
    padding-top: 15px;
    font-weight: 700;
    font-size: 1.1rem;
}

.payment-summary .voucher-discount {
    color: #388e3c;
}

.site-footer .voucher-link {
    margin: 0;
    text-align: right;
}

.voucher-link {
    margin-top: 10px;
}

.voucher-link a {
    color: var(--accent-color);
    font-weight: 600;
}

.consultation-link-box {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
}

.consultation-link-box .btn {
    margin-top: 10px;
}

@media (max-width: 600px) {
    .booking-steps {
        gap: 6px;
        margin-bottom: 28px;
    }
    
    .step {
        padding: 10px 14px;
        min-height: 44px;
    }
    
    .step-number {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }
    
    .step-label {
        display: none;
    }
    
    .treatment-card {
        flex-direction: row;
        align-items: flex-start;
        gap: 16px;
    }
    
    .treatment-meta {
        flex-direction: column;
        align-items: flex-end;
    }
    
    .calendar-container {
        padding: 16px;
    }
    
    .calendar-weekdays span,
    .calendar-day {
        font-size: 0.8rem;
    }
    
    .time-slots {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .confirmation-box,
    .cancel-form-container {
        padding: 24px 20px;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    .voucher-input-group {
        flex-direction: column;
    }
    
    .selected-treatment-summary {
        padding: 14px 16px;
    }
    
    .site-footer {
        padding: 24px 0;
        padding-bottom: max(24px, env(safe-area-inset-bottom));
    }
}