/**
 * SafeXcon Terminbuchungs-Widget - Styles
 * 
 * Conversion-optimiert nach Best Practices:
 * - Mobile-First
 * - Klare visuelle Hierarchie
 * - Hohe Touch-Targets
 * - Micro-Interaktionen
 */

/* ================================
   CSS Variables (aus Config überschreibbar)
   ================================ */
:root {
    --booking-primary: #0066cc;
    --booking-primary-hover: #0052a3;
    --booking-success: #28a745;
    --booking-error: #dc3545;
    --booking-text: #333333;
    --booking-text-light: #666666;
    --booking-bg: #ffffff;
    --booking-bg-subtle: #f8f9fa;
    --booking-border: #dee2e6;
    --booking-radius: 8px;
    --booking-shadow: 0 2px 8px rgba(0,0,0,0.1);
    --booking-transition: 0.2s ease;
}

/* ================================
   Container
   ================================ */
.safexcon-booking {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--booking-text);
    background: var(--booking-bg);
    border-radius: var(--booking-radius);
    box-shadow: var(--booking-shadow);
    max-width: 480px;
    margin: 0 auto;
    overflow: hidden;
}

.safexcon-booking * {
    box-sizing: border-box;
}

/* ================================
   Header
   ================================ */
.booking-header {
    background: var(--booking-primary);
    color: white;
    padding: 20px 24px;
    text-align: center;
}

.booking-header h2 {
    margin: 0 0 4px;
    font-size: 20px;
    font-weight: 600;
}

.booking-header p {
    margin: 0;
    font-size: 14px;
    opacity: 0.9;
}

/* ================================
   Steps Indicator
   ================================ */
.booking-steps {
    display: flex;
    justify-content: center;
    padding: 16px 24px;
    background: var(--booking-bg-subtle);
    border-bottom: 1px solid var(--booking-border);
}

.step-indicator {
    display: flex;
    align-items: center;
    font-size: 13px;
    color: var(--booking-text-light);
}

.step-indicator .step-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--booking-border);
    color: var(--booking-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    margin-right: 8px;
    transition: all var(--booking-transition);
}

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

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

.step-indicator.completed .step-number::after {
    content: '✓';
}

.step-divider {
    width: 32px;
    height: 2px;
    background: var(--booking-border);
    margin: 0 8px;
}

.step-divider.completed {
    background: var(--booking-success);
}

/* ================================
   Content Area
   ================================ */
.booking-content {
    padding: 24px;
    min-height: 320px;
}

.booking-step {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

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

/* ================================
   Step 1: Calendar
   ================================ */
.calendar-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.calendar-nav h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.calendar-nav button {
    background: none;
    border: 1px solid var(--booking-border);
    border-radius: var(--booking-radius);
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--booking-text);
    transition: all var(--booking-transition);
}

.calendar-nav button:hover:not(:disabled) {
    background: var(--booking-bg-subtle);
    border-color: var(--booking-primary);
    color: var(--booking-primary);
}

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

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

.calendar-weekday {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--booking-text-light);
    padding: 8px 0;
    text-transform: uppercase;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--booking-radius);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--booking-transition);
    background: var(--booking-bg);
    border: 1px solid transparent;
}

.calendar-day:hover:not(.disabled):not(.empty) {
    border-color: var(--booking-primary);
    background: rgba(0, 102, 204, 0.05);
}

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

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

.calendar-day.available {
    color: var(--booking-primary);
    font-weight: 600;
    background: rgba(0, 102, 204, 0.08);
}

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

.calendar-day.selected {
    background: var(--booking-primary);
    color: white;
    font-weight: 600;
}

.calendar-day.today {
    border-color: var(--booking-primary);
}

/* ================================
   Step 2: Time Slots
   ================================ */
.selected-date {
    font-size: 14px;
    color: var(--booking-text-light);
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--booking-border);
}

.selected-date strong {
    color: var(--booking-text);
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.time-slot {
    padding: 14px 8px;
    text-align: center;
    border: 1px solid var(--booking-border);
    border-radius: var(--booking-radius);
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all var(--booking-transition);
    background: var(--booking-bg);
}

.time-slot:hover {
    border-color: var(--booking-primary);
    background: rgba(0, 102, 204, 0.05);
    color: var(--booking-primary);
}

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

.no-slots {
    text-align: center;
    padding: 40px 20px;
    color: var(--booking-text-light);
}

.no-slots-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

/* ================================
   Step 3: Form
   ================================ */
.booking-summary {
    background: var(--booking-bg-subtle);
    border-radius: var(--booking-radius);
    padding: 16px;
    margin-bottom: 24px;
}

.booking-summary h4 {
    margin: 0 0 8px;
    font-size: 14px;
    color: var(--booking-text-light);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

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

.form-group {
    margin-bottom: 16px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--booking-text);
}

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

.form-group label .optional {
    color: var(--booking-text-light);
    font-weight: 400;
    font-size: 12px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    font-size: 16px;
    border: 1px solid var(--booking-border);
    border-radius: var(--booking-radius);
    background: var(--booking-bg);
    color: var(--booking-text);
    transition: border-color var(--booking-transition), box-shadow var(--booking-transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--booking-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--booking-error);
}

.form-group .error-message {
    color: var(--booking-error);
    font-size: 12px;
    margin-top: 4px;
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--booking-primary);
}

.checkbox-group label {
    margin-bottom: 0;
    font-size: 13px;
    line-height: 1.4;
}

.checkbox-group label a {
    color: var(--booking-primary);
}

/* Honeypot */
.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
    overflow: hidden;
}

/* ================================
   Buttons
   ================================ */
.booking-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--booking-radius);
    cursor: pointer;
    transition: all var(--booking-transition);
    border: none;
}

.btn-primary {
    background: var(--booking-primary);
    color: white;
    flex: 1;
}

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

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

.btn-secondary {
    background: var(--booking-bg);
    color: var(--booking-text);
    border: 1px solid var(--booking-border);
}

.btn-secondary:hover {
    background: var(--booking-bg-subtle);
    border-color: var(--booking-text-light);
}

/* Loading state */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ================================
   Step 4: Success
   ================================ */
.booking-success {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--booking-success);
    color: white;
    font-size: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

.booking-success h3 {
    margin: 0 0 8px;
    font-size: 22px;
    color: var(--booking-text);
}

.booking-success p {
    color: var(--booking-text-light);
    margin: 0 0 24px;
}

.success-details {
    background: var(--booking-bg-subtle);
    border-radius: var(--booking-radius);
    padding: 20px;
    margin-bottom: 24px;
    text-align: left;
}

.success-details .detail-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.success-details .detail-row:not(:last-child) {
    border-bottom: 1px solid var(--booking-border);
}

.success-details .detail-icon {
    font-size: 18px;
}

.btn-calendar {
    background: var(--booking-bg);
    color: var(--booking-primary);
    border: 2px solid var(--booking-primary);
    width: 100%;
}

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

/* ================================
   Loading State
   ================================ */
.booking-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--booking-text-light);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--booking-border);
    border-top-color: var(--booking-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}

/* ================================
   Error State
   ================================ */
.booking-error {
    background: #fff5f5;
    border: 1px solid #ffcdd2;
    border-radius: var(--booking-radius);
    padding: 16px;
    margin-bottom: 16px;
    color: var(--booking-error);
    font-size: 14px;
}

/* ================================
   Responsive
   ================================ */
@media (max-width: 480px) {
    .safexcon-booking {
        border-radius: 0;
        box-shadow: none;
    }
    
    .booking-content {
        padding: 20px 16px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .time-slots {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .booking-steps {
        padding: 12px 16px;
    }
    
    .step-indicator span:not(.step-number) {
        display: none;
    }
}