/**
 * Booking Wizard - Calendly-Inspired Design
 * Version 2.0
 */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    --booking-primary: #0069ff;
    --booking-primary-hover: #0052cc;
    --booking-primary-light: #e8f0fe;
    --booking-success: #00a86b;
    --booking-success-light: #e6f7f1;
    --booking-warning: #f59e0b;
    --booking-warning-light: #fef3c7;
    --booking-danger: #ef4444;
    --booking-danger-light: #fee2e2;
    --booking-text: #1a1a2e;
    --booking-text-muted: #6b7280;
    --booking-border: #e5e7eb;
    --booking-surface: #ffffff;
    --booking-bg: #f9fafb;
    --booking-radius: 12px;
    --booking-radius-sm: 8px;
    --booking-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --booking-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ========================================
   Container Layout
   ======================================== */
.booking-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    min-height: calc(100vh - 200px);
    display: flex;
    flex-direction: column;
}

/* ========================================
   Progress Header
   ======================================== */
.booking-header {
    margin-bottom: 32px;
}

.booking-progress {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    position: relative;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    position: relative;
}

.progress-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 2px;
    background: var(--booking-border);
}

.progress-step.completed:not(:last-child)::after {
    background: var(--booking-success);
}

.progress-step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    color: var(--booking-text-muted);
    transition: all 0.3s ease;
}

.progress-step.active .progress-step-circle {
    background: var(--booking-primary);
    border-color: var(--booking-primary);
    color: white;
    box-shadow: 0 0 0 4px var(--booking-primary-light);
}

.progress-step.completed .progress-step-circle {
    background: var(--booking-success);
    border-color: var(--booking-success);
    color: white;
}

.progress-step-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--booking-text-muted);
    white-space: nowrap;
}

.progress-step.active .progress-step-label {
    color: var(--booking-primary);
    font-weight: 600;
}

.progress-step.completed .progress-step-label {
    color: var(--booking-success);
}

/* ========================================
   Main Content Area
   ======================================== */
.booking-main {
    flex: 1;
    background: var(--booking-surface);
    border-radius: var(--booking-radius);
    box-shadow: var(--booking-shadow);
    padding: 32px;
    margin-bottom: 20px;
}

.booking-step {
    animation: fadeIn 0.3s ease;
}

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

/* ========================================
   Step 1: Doctor Selection
   ======================================== */

/* Preselected Doctor Card */
.selected-doctor-card {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.selected-doctor-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
    margin-bottom: 24px;
}

.selected-doctor-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--booking-primary-light);
}

.selected-doctor-info {
    text-align: right;
    flex: 1;
}

.selected-doctor-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 4px;
}

.selected-doctor-specialty {
    font-size: 15px;
    color: var(--booking-primary);
    margin: 0 0 8px;
}

.selected-doctor-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--booking-primary-light);
    color: var(--booking-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

/* Visit Type Section */
.visit-type-section {
    padding: 24px;
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
}

.section-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--booking-text);
    margin-bottom: 16px;
    text-align: center;
}

.visit-type-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.visit-type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.visit-type-btn:hover {
    border-color: var(--booking-primary);
    box-shadow: var(--booking-shadow);
    transform: translateY(-2px);
}

.visit-type-btn.active {
    border-color: var(--booking-primary);
    background: var(--booking-primary-light);
}

.visit-type-btn-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--booking-primary-light);
    border-radius: 50%;
    color: var(--booking-primary);
}

.visit-type-btn-icon svg {
    width: 28px;
    height: 28px;
}

.visit-type-btn-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--booking-text);
}

.visit-type-btn-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--booking-primary);
}

/* Doctor Selection (non-preselected) */
.doctor-selection {
    max-width: 800px;
    margin: 0 auto;
}

.filters-row {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--booking-text);
    margin-bottom: 8px;
}

.filter-buttons {
    display: flex;
    gap: 12px;
}

.filter-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--booking-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

/* Specialty Dropdown */
.specialty-dropdown {
    position: relative;
}

.dropdown-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius-sm);
    font-size: 14px;
    color: var(--booking-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.dropdown-trigger:hover,
.dropdown-trigger:focus {
    border-color: var(--booking-primary);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 4px;
    background: var(--booking-surface);
    border: 1px solid var(--booking-border);
    border-radius: var(--booking-radius-sm);
    box-shadow: var(--booking-shadow-lg);
    z-index: 100;
    max-height: 300px;
    overflow-y: auto;
}

.dropdown-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: none;
    border: none;
    text-align: right;
    font-size: 14px;
    color: var(--booking-text);
    cursor: pointer;
    transition: background 0.2s ease;
}

.dropdown-item:hover {
    background: var(--booking-bg);
}

.dropdown-item.selected {
    background: var(--booking-primary-light);
    color: var(--booking-primary);
}

.dropdown-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    color: var(--booking-text-muted);
}

/* Doctors Grid */
.doctors-section {
    margin-top: 24px;
}

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.doctor-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.doctor-card:hover {
    border-color: var(--booking-primary);
    box-shadow: var(--booking-shadow);
    transform: translateY(-2px);
}

.doctor-card.selected {
    border-color: var(--booking-primary);
    background: var(--booking-primary-light);
}

.doctor-card-img {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--booking-primary-light);
}

.doctor-card-content {
    flex: 1;
}

.doctor-card-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--booking-text);
    margin: 0 0 4px;
}

.doctor-card-specialty {
    font-size: 14px;
    color: var(--booking-primary);
    margin: 0 0 4px;
}

.doctor-card-exp {
    font-size: 13px;
    color: var(--booking-text-muted);
}

.doctor-card-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--booking-primary);
}

.doctor-card-check {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--booking-primary);
    border-radius: 50%;
    color: white;
}

/* ========================================
   Step 2: Date & Time Selection (Calendly Style)
   ======================================== */
.datetime-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    min-height: 450px;
}

/* Doctor Summary Sidebar */
.doctor-summary {
    padding: 24px;
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
    text-align: center;
    height: fit-content;
    position: sticky;
    top: 20px;
}

.summary-doctor-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--booking-primary-light);
    margin-bottom: 16px;
}

.summary-doctor-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 4px;
}

.summary-doctor-specialty {
    font-size: 14px;
    color: var(--booking-primary);
    margin: 0 0 20px;
}

.summary-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--booking-border);
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--booking-text-muted);
}

.summary-item svg {
    color: var(--booking-text-muted);
    flex-shrink: 0;
}

.summary-item.price {
    justify-content: center;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--booking-border);
}

.summary-item.price span {
    font-size: 24px;
    font-weight: 700;
    color: var(--booking-primary);
}

/* DateTime Picker */
.datetime-picker {
    display: flex;
    flex-direction: column;
}

.datetime-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 24px;
}

/* Calendar */
.calendar-section {
    margin-bottom: 24px;
}

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

.calendar-nav-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--booking-surface);
    border: 1px solid var(--booking-border);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.calendar-nav-btn:hover:not(:disabled) {
    background: var(--booking-primary-light);
    border-color: var(--booking-primary);
    color: var(--booking-primary);
}

.calendar-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.calendar-month {
    font-size: 16px;
    font-weight: 600;
    color: var(--booking-text);
}

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

.calendar-day-header {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--booking-text-muted);
    padding: 8px 4px;
    text-transform: uppercase;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    border-radius: 50%;
    border: none;
    background: none;
    cursor: pointer;
    transition: all 0.15s ease;
    color: var(--booking-text);
}

.calendar-day:hover:not(:disabled):not(.other-month) {
    background: var(--booking-primary-light);
}

.calendar-day.available:not(.selected) {
    font-weight: 700;
    color: var(--booking-primary);
}

.calendar-day.today:not(.selected) {
    background: var(--booking-bg);
    font-weight: 700;
}

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

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

.calendar-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    color: var(--booking-text-muted);
    font-size: 14px;
}

/* Time Slots */
.slots-section {
    flex: 1;
    border-top: 1px solid var(--booking-border);
    padding-top: 24px;
}

.slots-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 0 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--booking-text);
}

.slots-date {
    font-size: 14px;
    font-weight: 500;
    color: var(--booking-primary);
}

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

.time-slot {
    padding: 14px 12px;
    text-align: center;
    font-size: 15px;
    font-weight: 600;
    background: var(--booking-surface);
    border: 2px solid var(--booking-primary);
    border-radius: var(--booking-radius-sm);
    color: var(--booking-primary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.time-slot:hover:not(:disabled) {
    background: var(--booking-primary);
    color: white;
}

.time-slot.selected {
    background: var(--booking-primary);
    color: white;
    box-shadow: 0 0 0 3px var(--booking-primary-light);
}

.time-slot.unavailable,
.time-slot:disabled {
    background: var(--booking-bg);
    border-color: var(--booking-border);
    color: var(--booking-text-muted);
    cursor: not-allowed;
    text-decoration: line-through;
}

.empty-slots {
    text-align: center;
    padding: 32px;
    color: var(--booking-text-muted);
}

.empty-slots p {
    margin: 0 0 12px;
}

.link-btn {
    background: none;
    border: none;
    color: var(--booking-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.no-date-selected {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px;
    color: var(--booking-text-muted);
    text-align: center;
}

/* No dates message */
.no-dates-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px 24px;
    min-height: 300px;
}

.no-dates-message svg {
    color: var(--booking-text-muted);
    opacity: 0.5;
    margin-bottom: 20px;
}

.no-dates-message h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 8px;
}

.no-dates-message p {
    color: var(--booking-text-muted);
    margin: 0 0 8px;
    max-width: 400px;
}

.no-date-selected svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-date-selected p {
    margin: 0;
    font-size: 15px;
}

/* ========================================
   Step 3: Patient Info & Checkout
   ======================================== */
.checkout-container {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 32px;
}

.patient-form {
    order: 1;
}

.booking-summary {
    order: 2;
}

.form-title,
.summary-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 24px;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--booking-text);
    margin-bottom: 8px;
}

.form-label .required {
    color: var(--booking-danger);
}

.form-label small {
    font-weight: 400;
    color: var(--booking-text-muted);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius-sm);
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--booking-primary);
    box-shadow: 0 0 0 3px var(--booking-primary-light);
}

.form-input.error {
    border-color: var(--booking-danger);
}

.form-input.error:focus {
    box-shadow: 0 0 0 3px var(--booking-danger-light);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    display: block;
    font-size: 13px;
    color: var(--booking-danger);
    margin-top: 6px;
}

/* Radio Group */
.radio-group {
    display: flex;
    gap: 24px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--booking-text);
}

.radio-label input {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--booking-border);
    border-radius: 50%;
    position: relative;
    transition: all 0.2s ease;
}

.radio-label input:checked + .radio-custom {
    border-color: var(--booking-primary);
}

.radio-label input:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--booking-primary);
    border-radius: 50%;
}

/* Summary Card */
.summary-card {
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
    padding: 20px;
}

.summary-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
}

.summary-row:first-child {
    padding-top: 0;
}

.summary-row:last-child {
    padding-bottom: 0;
}

.summary-mini-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.summary-row div {
    display: flex;
    flex-direction: column;
}

.summary-row strong {
    font-size: 15px;
    color: var(--booking-text);
}

.summary-row small {
    font-size: 13px;
    color: var(--booking-text-muted);
}

.summary-divider {
    height: 1px;
    background: var(--booking-border);
    margin: 4px 0;
}

.summary-row.icon-row svg {
    color: var(--booking-text-muted);
    flex-shrink: 0;
}

.summary-row.icon-row span {
    font-size: 14px;
    color: var(--booking-text);
}

.summary-row.total {
    padding-top: 16px;
    border-top: 2px solid var(--booking-border);
    margin-top: 8px;
}

.summary-row.total span {
    font-size: 15px;
    color: var(--booking-text-muted);
}

.summary-row.total strong {
    font-size: 22px;
    color: var(--booking-primary);
    margin-right: auto;
}

/* Lock Timer */
.lock-timer {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--booking-warning-light);
    border-radius: var(--booking-radius-sm);
    color: var(--booking-warning);
    font-size: 14px;
    margin-top: 16px;
}

.lock-timer.warning {
    background: var(--booking-danger-light);
    color: var(--booking-danger);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ========================================
   Success Step
   ======================================== */
.success-step {
    text-align: center;
}

.success-content {
    max-width: 500px;
    margin: 0 auto;
    padding: 40px 20px;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--booking-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    0% { transform: scale(0); }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.success-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 8px;
}

.success-message {
    font-size: 16px;
    color: var(--booking-text-muted);
    margin: 0 0 32px;
}

.booking-number-card {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 32px;
    background: var(--booking-primary-light);
    border-radius: var(--booking-radius);
    margin-bottom: 32px;
}

.booking-number-label {
    font-size: 13px;
    color: var(--booking-text-muted);
    margin-bottom: 4px;
}

.booking-number-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--booking-primary);
    letter-spacing: 2px;
}

.success-details {
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
    padding: 20px;
    margin-bottom: 32px;
}

.success-detail {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--booking-border);
}

.success-detail:last-child {
    border-bottom: none;
}

.success-detail span {
    color: var(--booking-text-muted);
}

.success-detail strong {
    color: var(--booking-text);
}

/* ========================================
   Footer Navigation
   ======================================== */
.booking-footer {
    background: var(--booking-surface);
    border-radius: var(--booking-radius);
    box-shadow: var(--booking-shadow);
    padding: 20px 32px;
    position: sticky;
    bottom: 20px;
}

.footer-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--booking-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--booking-primary-hover);
}

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

.btn-success:hover:not(:disabled) {
    filter: brightness(1.1);
}

.btn-back {
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    color: var(--booking-text);
}

.btn-back:hover {
    background: var(--booking-bg);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--booking-border);
    color: var(--booking-text);
}

.btn-outline:hover {
    border-color: var(--booking-text);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loading {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Error Toast */
.error-toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--booking-danger-light);
    color: var(--booking-danger);
    border-radius: var(--booking-radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
}

.error-toast button {
    margin-right: auto;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: inherit;
}

/* ========================================
   Skeleton Loading
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-card {
    padding: 20px;
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius);
}

.skeleton-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
}

.skeleton-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skeleton-text {
    height: 14px;
    border-radius: 4px;
}

.skeleton-text.long { width: 80%; }
.skeleton-text.medium { width: 60%; }
.skeleton-text.short { width: 40%; }

/* Mini Spinner */
.mini-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--booking-border);
    border-top-color: var(--booking-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.mini-spinner.white {
    border-color: rgba(255,255,255,0.3);
    border-top-color: white;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--booking-text-muted);
}

.empty-state svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    margin: 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 900px) {
    .datetime-container {
        grid-template-columns: 1fr;
    }

    .doctor-summary {
        position: static;
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 16px;
        text-align: right;
    }

    .summary-doctor-img {
        grid-row: span 2;
        width: 80px;
        height: 80px;
    }

    .summary-doctor-name {
        margin-top: 8px;
    }

    .summary-details {
        display: none;
    }

    .checkout-container {
        grid-template-columns: 1fr;
    }

    .patient-form {
        order: 2;
    }

    .booking-summary {
        order: 1;
    }
}

@media (max-width: 768px) {
    .booking-container {
        padding: 16px;
    }

    .booking-main {
        padding: 24px 20px;
    }

    .progress-step-label {
        display: none;
    }

    .progress-step {
        padding: 8px 16px;
    }

    .filters-row {
        flex-direction: column;
        gap: 16px;
    }

    .filter-group {
        min-width: 100%;
    }

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

    .visit-type-buttons {
        grid-template-columns: 1fr;
    }

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

    .booking-footer {
        padding: 16px 20px;
        bottom: 0;
        border-radius: var(--booking-radius) var(--booking-radius) 0 0;
    }

    .footer-buttons {
        flex-direction: column-reverse;
        gap: 12px;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .selected-doctor-header {
        flex-direction: column;
        text-align: center;
    }

    .selected-doctor-info {
        text-align: center;
    }

    .slots-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .radio-group {
        flex-direction: column;
        gap: 12px;
    }
}

/* ========================================
   Enhanced Mobile Styles
   ======================================== */
@media (max-width: 768px) {
    /* Better touch targets */
    .calendar-day {
        min-height: 44px;
        min-width: 44px;
        font-size: 15px;
    }

    .time-slot {
        padding: 16px 12px;
        font-size: 16px;
        min-height: 52px;
    }

    .visit-type-btn {
        padding: 20px 16px;
    }

    .visit-type-btn-icon {
        width: 48px;
        height: 48px;
    }

    .visit-type-btn-icon svg {
        width: 24px;
        height: 24px;
    }

    /* Form inputs touch-friendly */
    .form-input {
        padding: 16px;
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 52px;
    }

    .form-textarea {
        min-height: 100px;
    }

    /* Progress circles bigger */
    .progress-step-circle {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    /* Calendar navigation */
    .calendar-nav-btn {
        width: 44px;
        height: 44px;
    }

    .calendar-month {
        font-size: 15px;
    }

    /* Doctor card mobile */
    .doctor-card {
        padding: 16px;
    }

    .doctor-card-img {
        width: 60px;
        height: 60px;
    }

    .doctor-card-name {
        font-size: 15px;
    }

    .doctor-card-price {
        font-size: 16px;
    }

    /* Summary on mobile */
    .summary-card {
        padding: 16px;
    }

    .summary-mini-img {
        width: 40px;
        height: 40px;
    }

    /* Dropdown on mobile */
    .dropdown-trigger {
        padding: 14px 16px;
        font-size: 15px;
        min-height: 52px;
    }

    .dropdown-item {
        padding: 14px 16px;
        min-height: 48px;
    }

    /* Datetime picker mobile title */
    .datetime-title {
        font-size: 18px;
        margin-bottom: 20px;
    }

    /* Slots section mobile */
    .slots-section {
        padding-top: 20px;
    }

    .slots-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    /* No dates message mobile */
    .no-dates-message {
        padding: 32px 16px;
        min-height: 250px;
    }

    .no-dates-message svg {
        width: 48px;
        height: 48px;
    }

    .no-dates-message h4 {
        font-size: 18px;
    }

    .no-dates-message p {
        font-size: 14px;
    }
}

/* Small phones */
@media (max-width: 375px) {
    .booking-container {
        padding: 12px;
    }

    .booking-main {
        padding: 20px 16px;
    }

    .calendar-day {
        font-size: 13px;
        min-height: 38px;
        min-width: 38px;
    }

    .calendar-day-header {
        font-size: 11px;
    }

    .time-slot {
        padding: 14px 8px;
        font-size: 14px;
    }

    .btn {
        padding: 14px 20px;
        font-size: 14px;
    }

    .selected-doctor-image {
        width: 80px;
        height: 80px;
    }

    .selected-doctor-name {
        font-size: 18px;
    }

    .visit-type-btn-price {
        font-size: 16px;
    }
}

/* Safe area for modern phones with notches */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .booking-footer {
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }
}

/* Landscape mode on mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .booking-header {
        margin-bottom: 16px;
    }

    .booking-main {
        padding: 16px;
    }

    .datetime-container {
        grid-template-columns: 1fr 1fr;
    }

    .doctor-summary {
        display: none;
    }

    .calendar-day {
        min-height: 36px;
    }
}

/* Dark mode support (if system prefers) */
@media (prefers-color-scheme: dark) {
    :root {
        --booking-bg: #1a1a2e;
        --booking-surface: #16213e;
        --booking-text: #eaeaea;
        --booking-text-muted: #a0a0a0;
        --booking-border: #2a2a4a;
        --booking-primary-light: #1a3a5c;
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .skeleton,
    .mini-spinner,
    .calendar-day,
    .time-slot,
    .btn,
    .doctor-card,
    .visit-type-btn {
        animation: none;
        transition: none;
    }
}

/* ========================================
   Step 4: Payment Methods
   ======================================== */
.payment-container {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 32px;
}

.payment-summary {
    order: 1;
}

.payment-methods-section {
    order: 2;
}

/* Payment Reference Card */
.payment-reference-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    background: var(--booking-primary-light);
    border-radius: var(--booking-radius-sm);
    margin-top: 16px;
}

.reference-label {
    font-size: 12px;
    color: var(--booking-text-muted);
    margin-bottom: 4px;
}

.reference-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--booking-primary);
    letter-spacing: 1px;
    font-family: monospace;
}

/* Payment Methods Loading */
.payment-methods-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 48px;
    color: var(--booking-text-muted);
}

/* Payment Methods Grid */
.payment-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

/* Payment Method Card */
.payment-method-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--booking-surface);
    border: 2px solid var(--booking-border);
    border-radius: var(--booking-radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.payment-method-card:hover:not(.disabled) {
    border-color: var(--booking-primary);
    box-shadow: var(--booking-shadow);
}

.payment-method-card.selected {
    border-color: var(--booking-primary);
    background: var(--booking-primary-light);
}

.payment-method-card.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.payment-method-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--booking-bg);
    border-radius: var(--booking-radius-sm);
    flex-shrink: 0;
}

.payment-method-icon svg {
    width: 28px;
    height: 28px;
    color: var(--booking-primary);
}

.payment-method-icon img {
    max-width: 36px;
    max-height: 36px;
    object-fit: contain;
}

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

.payment-method-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--booking-text);
    margin: 0 0 4px;
}

.payment-method-desc {
    font-size: 13px;
    color: var(--booking-text-muted);
    margin: 0 0 4px;
    line-height: 1.4;
}

.payment-method-limit {
    display: inline-block;
    font-size: 11px;
    color: var(--booking-warning);
    background: var(--booking-warning-light);
    padding: 2px 8px;
    border-radius: 10px;
    margin-top: 4px;
}

.payment-method-check {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--booking-primary);
    border-radius: 50%;
    color: white;
}

.payment-method-unavailable {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 11px;
    color: var(--booking-danger);
    background: var(--booking-danger-light);
    padding: 2px 8px;
    border-radius: 10px;
}

/* Bank Transfer Details */
.bank-transfer-details {
    margin-top: 24px;
    animation: fadeIn 0.3s ease;
}

.bank-details-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--booking-text);
    margin: 0 0 16px;
}

.bank-details-card {
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
    padding: 20px;
}

.bank-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--booking-border);
}

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

.bank-detail-row.full {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.bank-detail-label {
    font-size: 13px;
    color: var(--booking-text-muted);
}

.bank-detail-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--booking-text);
}

.bank-detail-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 16px;
    padding: 12px;
    background: var(--booking-warning-light);
    border-radius: var(--booking-radius-sm);
    color: var(--booking-warning);
    font-size: 13px;
}

.bank-detail-note svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.bank-detail-note strong {
    color: var(--booking-text);
    font-family: monospace;
}

/* In-Clinic Payment Info */
.in-clinic-info {
    margin-top: 24px;
    animation: fadeIn 0.3s ease;
}

.in-clinic-card {
    text-align: center;
    padding: 32px;
    background: var(--booking-success-light);
    border-radius: var(--booking-radius);
}

.in-clinic-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--booking-success);
    border-radius: 50%;
    margin: 0 auto 16px;
    color: white;
}

.in-clinic-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--booking-text);
    margin: 0 0 8px;
}

.in-clinic-card p {
    font-size: 14px;
    color: var(--booking-text-muted);
    margin: 0 0 8px;
}

.in-clinic-note {
    font-size: 13px;
    color: var(--booking-success);
    font-weight: 500;
}

/* Payment Processing */
.payment-processing {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 48px;
    color: var(--booking-text-muted);
}

.mini-spinner.large {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

/* Skip Payment Option */
.skip-payment-option {
    text-align: center;
    padding: 24px;
    border-top: 1px solid var(--booking-border);
    margin-top: 24px;
}

.btn-skip {
    margin-bottom: 8px;
}

.skip-note {
    font-size: 13px;
    color: var(--booking-text-muted);
    margin: 0;
}

/* Payment Button */
.btn-pay {
    background: var(--booking-success);
    min-width: 160px;
}

.btn-pay:hover:not(:disabled) {
    filter: brightness(1.1);
}

/* Payment Step Responsive */
@media (max-width: 900px) {
    .payment-container {
        grid-template-columns: 1fr;
    }

    .payment-summary {
        order: 1;
    }

    .payment-methods-section {
        order: 2;
    }
}

@media (max-width: 768px) {
    .payment-methods-grid {
        grid-template-columns: 1fr;
    }

    .payment-method-card {
        padding: 16px;
    }

    .payment-method-icon {
        width: 40px;
        height: 40px;
    }

    .payment-method-icon svg {
        width: 24px;
        height: 24px;
    }

    .payment-method-name {
        font-size: 15px;
    }

    .bank-details-card {
        padding: 16px;
    }

    .bank-detail-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .in-clinic-card {
        padding: 24px 16px;
    }

    .in-clinic-icon {
        width: 56px;
        height: 56px;
    }
}

/* Print styles (hide booking footer) */
@media print {
    .booking-footer {
        display: none;
    }

    .booking-progress {
        display: none;
    }
}