:root {
    --green-primary: #2D4B40;
    --green-hover: #1a3d32;
    --green-light: #3a6355;
    --bg-cream: #F8F5ED;
    --bg-white: #FFFFFF;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #e8e4d8;
    --gold: #FFD700;
    --gold-dim: #B8860B;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --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 10px 20px rgba(0, 0, 0, 0.2);
    --transition: 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #F8F5ED 0%, #EBE5D7 100%);
    background-attachment: fixed;
    color: var(--text-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.6;
    padding-bottom: calc(92px + env(safe-area-inset-bottom, 0px));
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

.booking-header {
    width: 100%;
    max-width: 700px;
    padding: 20px 16px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.back-link {
    align-self: flex-start;
    color: var(--green-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 12px;
    transition: color var(--transition);
}

.back-link:hover {
    color: var(--green-hover);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.header-logo {
    height: 50px;
    width: auto;
    border-radius: var(--radius-sm);
}

.header-brand h1 {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--green-primary);
}

.stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0 16px 24px;
    width: 100%;
    max-width: 600px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #ddd;
    color: var(--text-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all var(--transition);
    min-width: 36px;
}

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

.step.completed .step-number {
    background-color: var(--gold);
    color: var(--text-dark);
}

.step-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.step.active .step-label {
    color: var(--green-primary);
    font-weight: 700;
}

.step-line {
    flex: 1;
    height: 2px;
    background-color: #ddd;
    margin: 0 8px;
    margin-bottom: 20px;
    transition: background-color var(--transition);
}

.step-line.active {
    background-color: var(--gold);
}

.booking-main {
    width: 100%;
    max-width: 700px;
    padding: 0 16px;
    flex: 1;
}

.step-content {
    display: none;
    animation: fadeUp 0.4s ease;
}

.step-content.active {
    display: block;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--green-primary);
    margin-bottom: 4px;
}

.step-subtitle {
    color: var(--text-medium);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

/* BARBER SELECTION */
.barber-selection {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.barber-option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: white;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.barber-option:hover {
    border-color: var(--green-light);
    transform: translateX(4px);
}

.barber-option.selected {
    border-color: var(--green-primary);
    background-color: rgba(45, 75, 64, 0.05);
    box-shadow: var(--shadow-md);
}

.barber-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--green-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.barber-info {
    flex: 1;
}

.barber-info .barber-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-dark);
}

.barber-info .barber-desc {
    font-size: 0.85rem;
    color: var(--text-medium);
}

.barber-check {
    font-size: 1.5rem;
    color: transparent;
    transition: color var(--transition);
}

.barber-option.selected .barber-check {
    color: var(--green-primary);
}

/* CALENDAR */
.datetime-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.date-picker {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.calendar-header span {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--green-primary);
    text-transform: capitalize;
}

.calendar-header button {
    background: none;
    border: none;
    color: var(--green-primary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 8px;
    border-radius: 50%;
    transition: background-color var(--transition);
}

.calendar-header button:hover {
    background-color: rgba(45, 75, 64, 0.1);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    margin-bottom: 8px;
}

.calendar-weekdays span {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-medium);
    text-transform: uppercase;
    padding: 4px 0;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-days .day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    background: none;
    min-height: 40px;
    min-width: 40px;
}

.calendar-days .day:hover:not(.disabled):not(.empty) {
    background-color: rgba(45, 75, 64, 0.15);
}

.calendar-days .day.selected {
    background-color: var(--green-primary);
    color: white;
    font-weight: 700;
}

.calendar-days .day.today {
    border: 2px solid var(--green-primary);
}

.calendar-days .day.disabled {
    color: #ccc;
    cursor: not-allowed;
}

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

.time-picker {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.time-picker h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--green-primary);
    margin-bottom: 8px;
}

.time-hint {
    font-size: 0.85rem;
    color: var(--text-medium);
    margin-bottom: 12px;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.time-slot {
    padding: 10px 8px;
    text-align: center;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    background: white;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.time-slot:hover:not(.disabled) {
    border-color: var(--green-primary);
    background-color: rgba(45, 75, 64, 0.05);
}

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

.time-slot.disabled {
    color: #ccc;
    border-color: #eee;
    cursor: not-allowed;
    background: #f9f9f9;
}

/* SERVICES SELECTION */
.services-selection {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}

.service-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: white;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.service-option:hover {
    border-color: var(--green-light);
}

.service-option.selected {
    border-color: var(--green-primary);
    background-color: rgba(45, 75, 64, 0.05);
}

.service-option.featured {
    border-color: var(--gold-dim);
}

.service-option.featured.selected {
    border-color: var(--green-primary);
}

.service-tag {
    position: absolute;
    top: -10px;
    right: 12px;
    background: var(--gold);
    color: var(--text-dark);
    font-size: 0.65rem;
    font-weight: 800;
    padding: 2px 10px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-radio {
    font-size: 1.3rem;
    color: #ccc;
    transition: color var(--transition);
}

.service-option.selected .service-radio {
    color: var(--green-primary);
}

.service-radio .fa-circle {
    font-weight: 400;
}

.service-option.selected .service-radio .fa-circle::before {
    content: "\f058";
}

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

.service-info .service-name {
    font-weight: 700;
    font-size: 1rem;
}

.service-info .service-detail {
    font-size: 0.8rem;
    color: var(--text-medium);
}

.service-meta {
    text-align: right;
    flex-shrink: 0;
}

.service-meta .service-price {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--green-primary);
}

.service-meta .service-duration {
    font-size: 0.75rem;
    color: var(--text-medium);
}

.services-summary {
    background: white;
    border-radius: var(--radius-md);
    padding: 16px 20px;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--green-primary);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
}

.summary-row:first-child {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--green-primary);
}

.summary-row:last-child {
    font-size: 0.9rem;
    color: var(--text-medium);
}

/* CLIENT FORM */
.client-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--green-primary);
}

.form-group label i {
    margin-right: 6px;
}

.form-group input {
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    transition: border-color var(--transition);
    outline: none;
    -webkit-appearance: none;
}

.form-group input:focus {
    border-color: var(--green-primary);
}

.form-group textarea {
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color var(--transition);
    outline: none;
    resize: vertical;
    min-height: 80px;
}

.form-group textarea:focus {
    border-color: var(--green-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #bbb;
}

.booking-summary {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--green-primary);
}

.booking-summary h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--green-primary);
    margin-bottom: 16px;
}

.summary-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.summary-item i {
    color: var(--green-primary);
    width: 20px;
    text-align: center;
}

.summary-item.total {
    border-top: 2px solid rgba(45, 75, 64, 0.15);
    padding-top: 12px;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--green-primary);
}

/* CONFIRMATION */
.confirmation-box {
    text-align: center;
    padding: 40px 20px;
}

.confirm-icon {
    font-size: 4rem;
    color: #4CAF50;
    margin-bottom: 16px;
    animation: popIn 0.5s ease;
}

@keyframes popIn {
    0% { transform: scale(0); }
    70% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.confirmation-box h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    color: var(--green-primary);
    margin-bottom: 8px;
}

.confirm-text {
    color: var(--text-medium);
    margin-bottom: 24px;
}

.confirm-details {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    text-align: left;
    margin-bottom: 16px;
}

.confirm-whatsapp {
    font-size: 0.9rem;
    color: var(--text-medium);
    margin-bottom: 24px;
}

.confirm-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background-color: #25D366;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition);
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background-color: var(--green-primary);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition);
}

.btn-secondary:hover {
    background-color: var(--green-hover);
    transform: translateY(-2px);
}

/* NAVIGATION BUTTONS */
.booking-nav {
    position: sticky;
    bottom: 0;
    width: 100%;
    max-width: 700px;
    display: flex;
    justify-content: space-between;
    padding: 16px;
    background: linear-gradient(to top, #EBE5D7 80%, transparent);
    z-index: 20;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
}

.btn-back,
.btn-next {
    padding: 14px 32px;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-back {
    background: white;
    color: var(--green-primary);
    border: 2px solid var(--green-primary);
}

.btn-back:hover {
    background-color: rgba(45, 75, 64, 0.05);
}

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

.btn-next:hover {
    background-color: var(--green-hover);
    transform: translateY(-2px);
}

.btn-back:disabled,
.btn-next:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    body {
        background-attachment: scroll;
    }

    .header-brand h1 {
        font-size: 1.35rem;
    }

    .header-logo {
        height: 52px;
    }

    .stepper {
        gap: 0;
    }

    .step-label {
        font-size: 0.6rem;
    }

    .step-number {
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
    }

    .step-title {
        font-size: 1.3rem;
    }

    .time-slots {
        grid-template-columns: repeat(3, 1fr);
    }

    .calendar-days .day {
        font-size: 0.8rem;
    }

    .service-option {
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    body {
        background-attachment: scroll;
    }

    .booking-header {
        padding-top: 12px;
    }

    .header-brand {
        gap: 10px;
        margin-bottom: 14px;
    }

    .header-brand h1 {
        font-size: 1.2rem;
    }

    .header-logo {
        height: 46px;
    }

    .time-slots {
        grid-template-columns: repeat(3, 1fr);
    }

    .stepper {
        padding: 0 8px 16px;
    }

    .step-label {
        display: none;
    }

    .step-line {
        margin-bottom: 0;
    }

    .booking-main {
        padding: 0 12px;
    }

    .step-title {
        font-size: 1.25rem;
    }

    .step-subtitle {
        font-size: 0.88rem;
        margin-bottom: 16px;
    }

    .barber-option,
    .date-picker,
    .time-picker,
    .booking-summary,
    .confirm-details {
        border-radius: var(--radius-md);
    }

    .barber-option {
        padding: 14px;
        gap: 12px;
    }

    .barber-icon {
        width: 46px;
        height: 46px;
    }

    .date-picker,
    .time-picker {
        padding: 14px;
    }

    .calendar-days {
        gap: 2px;
    }

    .calendar-days .day {
        border-radius: var(--radius-sm);
        min-height: 40px;
        min-width: 40px;
        font-size: 0.85rem;
    }

    .time-slot {
        min-height: 44px;
        font-size: 0.85rem;
        padding: 8px 4px;
    }

    .service-option {
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 10px 12px;
        padding: 14px;
    }

    .service-meta {
        grid-column: 2;
        text-align: left;
    }

    .services-summary {
        position: sticky;
        bottom: 80px;
        z-index: 10;
    }

    .booking-nav {
        padding: 12px;
        gap: 10px;
    }

    .btn-back,
    .btn-next {
        flex: 1;
        justify-content: center;
        padding: 12px 14px;
        font-size: 0.9rem;
        min-height: 48px;
    }

    .confirm-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .confirmation-box {
        padding: 24px 12px;
    }

    .confirmation-box h2 {
        font-size: 1.4rem;
    }

    .confirm-details {
        padding: 14px;
    }

    .booking-summary {
        padding: 14px;
    }

    .form-group input {
        padding: 14px;
        font-size: 16px;
    }

    .btn-whatsapp,
    .btn-secondary {
        justify-content: center;
        min-height: 48px;
    }
}