/* =========================================================================
   ExoPaper Booking Widget - Styles
   Verwendet CSS Custom Properties für Theming via data-Attribute.
   ========================================================================= */

.exobooking-widget {
    --exo-primary: #1976d2;
    --exo-primary-hover: color-mix(in srgb, var(--exo-primary) 85%, black);
    --exo-primary-light: color-mix(in srgb, var(--exo-primary) 15%, white);
    --exo-text: #333333;
    --exo-text-light: #666666;
    --exo-text-muted: #999999;
    --exo-bg: #ffffff;
    --exo-bg-hover: #f5f5f5;
    --exo-border: #e0e0e0;
    --exo-radius: 8px;
    --exo-error: #d32f2f;
    --exo-success: #2e7d32;

    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--exo-text);
    background: var(--exo-bg);
    border-radius: var(--exo-radius);
    border: 1px solid var(--exo-border);
    padding: 24px;
    max-width: 480px;
    margin: 0 auto;
    box-sizing: border-box;
}

.exobooking-widget *, .exobooking-widget *::before, .exobooking-widget *::after {
    box-sizing: border-box;
}

/* Title */
.exobooking-title {
    margin: 0 0 16px;
    font-size: 1.25em;
    font-weight: 600;
    color: var(--exo-text);
}

/* Loading */
.exobooking-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.exobooking-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--exo-border);
    border-top-color: var(--exo-primary);
    border-radius: 50%;
    animation: exobooking-spin 0.8s linear infinite;
}

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

/* Step Header */
.exobooking-step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.exobooking-step-label {
    font-weight: 600;
    font-size: 1.1em;
}

.exobooking-duration {
    margin-left: auto;
    font-size: 0.85em;
    color: var(--exo-text-muted);
    background: var(--exo-bg-hover);
    padding: 4px 8px;
    border-radius: 4px;
}

.exobooking-back-btn {
    background: none;
    border: none;
    color: var(--exo-primary);
    cursor: pointer;
    font-size: 0.9em;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.exobooking-back-btn:hover {
    background: var(--exo-primary-light);
}

/* =========================================================================
   KATEGORIE-AUSWAHL
   ========================================================================= */

.exobooking-categories-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.exobooking-category-btn {
    padding: 14px 16px;
    border: 2px solid var(--exo-primary);
    border-radius: 6px;
    background: transparent;
    color: var(--exo-primary);
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    text-align: center;
}

.exobooking-category-btn:hover {
    background: var(--exo-primary);
    color: #ffffff;
}

/* =========================================================================
   KALENDER
   ========================================================================= */

.exobooking-cal-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.exobooking-cal-month {
    font-weight: 600;
    font-size: 1em;
}

.exobooking-nav-btn {
    background: none;
    border: 1px solid var(--exo-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.2em;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--exo-text);
    transition: background 0.2s, border-color 0.2s;
}

.exobooking-nav-btn:hover {
    background: var(--exo-bg-hover);
    border-color: var(--exo-text-muted);
}

.exobooking-cal-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    margin-bottom: 4px;
}

.exobooking-cal-day-name {
    font-size: 0.8em;
    font-weight: 600;
    color: var(--exo-text-muted);
    padding: 4px;
}

.exobooking-cal-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.exobooking-cal-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9em;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
}

.exobooking-cal-empty {
    /* Leere Zellen */
}

.exobooking-cal-past {
    color: var(--exo-text-muted);
    opacity: 0.4;
}

.exobooking-cal-unavailable {
    color: var(--exo-text-muted);
    opacity: 0.5;
}

.exobooking-cal-available {
    cursor: pointer;
    font-weight: 600;
    color: var(--exo-primary);
    background: var(--exo-primary-light);
}

.exobooking-cal-available:hover {
    background: var(--exo-primary);
    color: #ffffff;
}

.exobooking-cal-selected {
    background: var(--exo-primary) !important;
    color: #ffffff !important;
    font-weight: 600;
}

/* =========================================================================
   ZEITSLOTS
   ========================================================================= */

.exobooking-selected-date,
.exobooking-selected-datetime {
    font-size: 0.95em;
    color: var(--exo-text-light);
    margin-bottom: 16px;
    padding: 8px 12px;
    background: var(--exo-bg-hover);
    border-radius: 6px;
    text-align: center;
}

.exobooking-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
}

.exobooking-slot-btn {
    padding: 10px 8px;
    border: 2px solid var(--exo-primary);
    border-radius: 6px;
    background: transparent;
    color: var(--exo-primary);
    font-size: 0.95em;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.exobooking-slot-btn:hover,
.exobooking-slot-selected {
    background: var(--exo-primary);
    color: #ffffff;
}

.exobooking-no-slots {
    text-align: center;
    color: var(--exo-text-muted);
    padding: 24px;
}

/* =========================================================================
   FORMULAR
   ========================================================================= */

.exobooking-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.exobooking-fieldset {
    border: 1px solid var(--exo-border);
    border-radius: var(--exo-radius);
    padding: 16px;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.exobooking-fieldset legend {
    font-weight: 600;
    font-size: 0.9em;
    color: var(--exo-text-light);
    padding: 0 8px;
}

.exobooking-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.exobooking-field label {
    font-size: 0.85em;
    font-weight: 500;
    color: var(--exo-text-light);
}

.exobooking-field input,
.exobooking-field select {
    padding: 10px 12px;
    border: 1px solid var(--exo-border);
    border-radius: 6px;
    font-size: 0.95em;
    color: var(--exo-text);
    background: var(--exo-bg);
    transition: border-color 0.2s;
    width: 100%;
}

.exobooking-field input:focus,
.exobooking-field select:focus {
    outline: none;
    border-color: var(--exo-primary);
    box-shadow: 0 0 0 3px var(--exo-primary-light);
}

.exobooking-input-error {
    border-color: var(--exo-error) !important;
}

.exobooking-field-error {
    font-size: 0.8em;
    color: var(--exo-error);
    margin-top: 2px;
}

.exobooking-field-row {
    display: flex;
    gap: 12px;
}

.exobooking-field-row > .exobooking-field {
    flex: 1;
}

.exobooking-field-row > .exobooking-field-1 {
    flex: 1;
}

.exobooking-field-row > .exobooking-field-3 {
    flex: 3;
}

/* Checkbox */
.exobooking-checkbox-field {
    margin-top: 4px;
}

.exobooking-checkbox-label {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    cursor: pointer;
    font-size: 0.85em;
    color: var(--exo-text-light);
}

.exobooking-checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--exo-primary);
    flex-shrink: 0;
}

.exobooking-checkbox-label a {
    color: var(--exo-primary);
}

/* Error Message */
.exobooking-error-message {
    padding: 10px 12px;
    background: color-mix(in srgb, var(--exo-error) 10%, white);
    border: 1px solid var(--exo-error);
    border-radius: 6px;
    color: var(--exo-error);
    font-size: 0.9em;
}

/* Submit Button */
.exobooking-submit-btn {
    padding: 14px 24px;
    background: var(--exo-primary);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.exobooking-submit-btn:hover:not(:disabled) {
    background: var(--exo-primary-hover);
}

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

/* =========================================================================
   BESTÄTIGUNG
   ========================================================================= */

.exobooking-confirmation {
    text-align: center;
    padding: 24px 0;
}

.exobooking-confirmation-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--exo-success) 15%, white);
    color: var(--exo-success);
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.exobooking-confirmation-title {
    font-size: 1.3em;
    font-weight: 600;
    margin: 0 0 16px;
    color: var(--exo-success);
}

.exobooking-confirmation-details {
    background: var(--exo-bg-hover);
    border-radius: var(--exo-radius);
    padding: 16px;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.exobooking-confirmation-date {
    font-weight: 600;
    font-size: 1.05em;
}

.exobooking-confirmation-time {
    font-size: 1.2em;
    color: var(--exo-primary);
    font-weight: 700;
}

.exobooking-confirmation-duration {
    font-size: 0.85em;
    color: var(--exo-text-muted);
}

.exobooking-confirmation-text {
    color: var(--exo-text-light);
    font-size: 0.9em;
}

/* =========================================================================
   ERROR STATE
   ========================================================================= */

.exobooking-error-state {
    text-align: center;
    padding: 32px;
    color: var(--exo-text-muted);
}

.exobooking-retry-btn {
    margin-top: 12px;
    padding: 8px 16px;
    background: var(--exo-primary);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */

@media (max-width: 480px) {
    .exobooking-widget {
        padding: 16px;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .exobooking-field-row {
        flex-direction: column;
        gap: 12px;
    }

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

@media (max-width: 360px) {
    .exobooking-slots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}