/**
 * ==================================================================================
 * BABYLUGG KALENDER - ALPINE.JS STYLES
 * ==================================================================================
 * Modernes, mobil-optimiertes Design
 * Accessibility-ready (WCAG AA)
 * ==================================================================================
 */

/* ==================================================================================
   VARIABLES
   ================================================================================== */
:root {
    --calendar-primary: #2A9F87;
    --calendar-primary-light: #3DBCA2;
    --calendar-primary-dark: #228973;

    --calendar-sunday: #EF5350;
    --calendar-sunday-bg: #FFEBEE;
    --calendar-sunday-dark: #C62828;

    --calendar-blocked: #FFB74D;
    --calendar-blocked-bg: #FFF3E0;
    --calendar-blocked-dark: #F57C00;

    --calendar-selected: #2A9F87;
    --calendar-selected-text: #FFFFFF;

    --calendar-range-bg: #E8F5F3;
    --calendar-range-border: #A5D8CC;

    --calendar-disabled: #BDBDBD;
    --calendar-disabled-bg: #F5F5F5;

    --calendar-border: #E0E0E0;
    --calendar-text: #000000;
    --calendar-text-secondary: #616161;
    --calendar-bg: #FFFFFF;

    --calendar-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --calendar-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);

    --calendar-radius: 8px;
    --calendar-radius-lg: 12px;

    --calendar-transition: all 0.2s ease;
}

/* ==================================================================================
   CALENDAR WRAPPER
   ================================================================================== */
.calendar-alpine-wrapper {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    position: relative;
}

/* ==================================================================================
   LOADING STATE
   ================================================================================== */
.calendar-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    min-height: 320px;
    background: var(--calendar-bg);
    border-radius: var(--calendar-radius-lg);
    box-shadow: var(--calendar-shadow);
}

.calendar-loader .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--calendar-border);
    border-top-color: var(--calendar-primary);
    border-radius: 50%;
    animation: spinner 0.8s linear infinite;
}

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

.calendar-loader p {
    margin-top: 16px;
    color: var(--calendar-text-secondary);
    font-size: 14px;
}

/* ==================================================================================
   ERROR STATE
   ================================================================================== */
.calendar-error {
    padding: 20px;
    background: #FFEBEE;
    border: 2px solid #EF5350;
    border-radius: var(--calendar-radius);
    color: #C62828;
    text-align: center;
}

/* ==================================================================================
   HEADER
   ================================================================================== */
.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--calendar-bg);
    border-radius: var(--calendar-radius-lg) var(--calendar-radius-lg) 0 0;
    border: 2px solid var(--calendar-border);
    border-bottom: none;
}

.calendar-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--calendar-text);
    flex: 1;
    text-align: center;
}

.calendar-nav-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--calendar-primary);
    color: white;
    border: none;
    border-radius: var(--calendar-radius);
    cursor: pointer;
    transition: var(--calendar-transition);
    font-size: 20px;
    font-weight: bold;
}

.calendar-nav-btn:hover {
    background: var(--calendar-primary-dark);
    transform: scale(1.05);
}

.calendar-nav-btn:active {
    transform: scale(0.95);
}

.calendar-nav-btn:focus {
    outline: 3px solid var(--calendar-primary);
    outline-offset: 2px;
}

/* ==================================================================================
   WEEKDAYS
   ================================================================================== */
.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: var(--calendar-bg);
    border-left: 2px solid var(--calendar-border);
    border-right: 2px solid var(--calendar-border);
    padding: 8px 0;
}

.calendar-weekday {
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--calendar-text);
    text-transform: uppercase;
    padding: 4px;
}

/* ==================================================================================
   DAYS GRID
   ================================================================================== */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    padding: 12px;
    background: var(--calendar-bg);
    border: 2px solid var(--calendar-border);
    border-radius: 0 0 var(--calendar-radius-lg) var(--calendar-radius-lg);
}

/* ==================================================================================
   DAY CELL
   ================================================================================== */
.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--calendar-border);
    border-radius: var(--calendar-radius);
    background: var(--calendar-bg);
    color: var(--calendar-text);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--calendar-transition);
    position: relative;
    /* Touch-Target Minimum (Accessibility) */
    min-width: 44px;
    min-height: 44px;
}

.calendar-day:not(.disabled):hover {
    border-color: var(--calendar-primary);
    color: var(--calendar-primary);
    transform: scale(1.05);
    box-shadow: var(--calendar-shadow-hover);
    z-index: 10;
}

.calendar-day:focus {
    outline: 3px solid var(--calendar-primary);
    outline-offset: 2px;
    z-index: 20;
}

/* Empty Cell */
.calendar-day.empty {
    visibility: hidden;
    pointer-events: none;
}

/* Today */
.calendar-day.today {
    border-color: var(--calendar-primary);
    color: var(--calendar-primary);
    font-weight: 700;
}

.calendar-day.today::before {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--calendar-primary);
    border-radius: 50%;
}

/* Sunday - KOMPLETT GESPERRT */
.calendar-day.sunday {
    background: var(--calendar-sunday-bg);
    border-color: var(--calendar-sunday);
    color: var(--calendar-sunday-dark);
    cursor: not-allowed;
    font-weight: 700;
}

.calendar-day.sunday:hover {
    transform: none;
    box-shadow: none;
}

/* Diagonale Linie durch Sonntage */
.calendar-day.sunday::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--calendar-sunday-dark);
    transform: translateY(-50%) rotate(-45deg);
    pointer-events: none;
}

/* Blocked - Durchmieten erlaubt! */
.calendar-day.blocked:not(.sunday) {
    background: var(--calendar-blocked-bg);
    border-color: var(--calendar-blocked);
    color: var(--calendar-blocked-dark);
    font-weight: 600;
    cursor: pointer; /* Wichtig: Klickbar! */
}

.calendar-day.blocked:not(.sunday):hover {
    background: #FFE0B2;
    border-color: #FF9800;
    color: #E65100;
    transform: scale(1.02);
}

/* Warning-Icon für gesperrte Tage */
.calendar-day.blocked:not(.sunday)::before {
    content: '⚠';
    position: absolute;
    top: 2px;
    right: 2px;
    font-size: 10px;
    color: var(--calendar-blocked-dark);
    line-height: 1;
}

/* Selected (Start/End) */
.calendar-day.selected {
    background: var(--calendar-selected) !important;
    border-color: var(--calendar-selected) !important;
    color: var(--calendar-selected-text) !important;
    font-weight: 700;
    transform: scale(1.05);
    z-index: 15;
}

.calendar-day.selected:hover {
    background: var(--calendar-primary-dark) !important;
    border-color: var(--calendar-primary-dark) !important;
}

/* In Range (zwischen Start und Ende) */
.calendar-day.in-range {
    background: var(--calendar-range-bg) !important;
    border-color: var(--calendar-range-border) !important;
    color: var(--calendar-primary) !important;
}

.calendar-day.in-range:hover {
    background: #D4EDE8 !important;
    border-color: var(--calendar-primary) !important;
}

/* Disabled (Vergangenheit, vor minDate) */
.calendar-day.disabled {
    background: var(--calendar-disabled-bg);
    border-color: var(--calendar-border);
    color: var(--calendar-disabled);
    cursor: not-allowed;
    opacity: 0.6;
}

.calendar-day.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--calendar-border);
    color: var(--calendar-disabled);
}

/* ==================================================================================
   SELECTION INFO
   ================================================================================== */
.calendar-selection-info {
    margin-top: 16px;
    padding: 16px;
    background: #E8F5F3;
    border: 2px solid var(--calendar-primary);
    border-radius: var(--calendar-radius);
    text-align: center;
}

.calendar-selection-info strong {
    color: var(--calendar-text);
    font-size: 14px;
    display: block;
    margin-bottom: 8px;
}

.calendar-selection-info .range-text {
    color: var(--calendar-primary);
    font-size: 16px;
    font-weight: 700;
}

.calendar-selection-info .clear-btn {
    margin-top: 12px;
    padding: 8px 16px;
    background: white;
    border: 2px solid var(--calendar-primary);
    color: var(--calendar-primary);
    border-radius: var(--calendar-radius);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: var(--calendar-transition);
}

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

/* ==================================================================================
   LEGEND (Legende für Kalender-Farben)
   ================================================================================== */
.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
    padding: 16px;
    background: var(--calendar-bg);
    border: 2px solid var(--calendar-border);
    border-radius: var(--calendar-radius);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--calendar-text);
}

.legend-color {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 2px solid var(--calendar-border);
    display: inline-block;
    position: relative;  /* WICHTIG für ::after */
    flex-shrink: 0;
}

.legend-color.sunday {
    background: var(--calendar-sunday-bg);
    border-color: var(--calendar-sunday);
}

/* Diagonale Linie für Sonntag-Symbol */
.legend-color.sunday::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--calendar-sunday-dark);
    transform: translateY(-50%) rotate(-45deg);
}

.legend-color.blocked {
    background: var(--calendar-blocked-bg);
    border-color: var(--calendar-blocked);
}

.legend-color.selected {
    background: var(--calendar-selected);
    border-color: var(--calendar-selected);
}

/* ==================================================================================
   SUNDAY NOTICE (Hinweis für Sonntags-Termine)
   ================================================================================== */
.calendar-sunday-notice {
    margin-top: 16px;
    padding: 16px;
    background: #FFF3E0;
    border-left: 4px solid #FF9800;
    border-radius: var(--calendar-radius);
    animation: slideIn 0.3s ease;
}

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

.calendar-sunday-notice h4 {
    margin: 0 0 8px 0;
    color: #F57C00;
    font-size: 16px;
    font-weight: 600;
}

.calendar-sunday-notice p {
    margin: 0 0 12px 0;
    font-size: 14px;
    color: #424242;
    line-height: 1.5;
}

.calendar-sunday-notice .contact-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 12px;
}

.calendar-sunday-notice .btn-whatsapp,
.calendar-sunday-notice .btn-contact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--calendar-transition);
}

.calendar-sunday-notice .btn-whatsapp {
    background: #25D366;
    color: white;
}

.calendar-sunday-notice .btn-whatsapp:hover {
    background: #20BA5A;
    transform: translateY(-2px);
}

.calendar-sunday-notice .btn-contact {
    background: var(--calendar-primary);
    color: white;
}

.calendar-sunday-notice .btn-contact:hover {
    background: var(--calendar-primary-dark);
    transform: translateY(-2px);
}

/* ==================================================================================
   MOBILE OPTIMIZATIONS
   ================================================================================== */
@media (max-width: 768px) {
    .calendar-alpine-wrapper {
        max-width: 100%;
    }

    .calendar-header {
        padding: 12px;
    }

    .calendar-header h3 {
        font-size: 16px;
    }

    .calendar-nav-btn {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    .calendar-weekday {
        font-size: 12px;
        padding: 6px 2px;
    }

    .calendar-day {
        font-size: 14px;
        min-width: 40px;
        min-height: 40px;
    }

    .calendar-grid {
        gap: 2px;
        padding: 8px;
    }

    .calendar-selection-info {
        padding: 12px;
    }

    .calendar-selection-info strong {
        font-size: 13px;
    }

    .calendar-selection-info .range-text {
        font-size: 14px;
    }

    .calendar-sunday-notice {
        padding: 12px;
    }

    .calendar-sunday-notice h4 {
        font-size: 14px;
    }

    .calendar-sunday-notice p {
        font-size: 13px;
    }

    .calendar-sunday-notice .btn-whatsapp,
    .calendar-sunday-notice .btn-contact {
        font-size: 13px;
        padding: 8px 12px;
    }
}

/* Extra Small Screens */
@media (max-width: 360px) {
    .calendar-header {
        padding: 10px;
    }

    .calendar-header h3 {
        font-size: 15px;
    }

    .calendar-nav-btn {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .calendar-day {
        font-size: 13px;
        min-width: 36px;
        min-height: 36px;
    }
}

/* ==================================================================================
   ACCESSIBILITY
   ================================================================================== */

/* Focus-Visible (nur bei Keyboard-Navigation) */
.calendar-day:focus-visible,
.calendar-nav-btn:focus-visible,
.calendar-selection-info .clear-btn:focus-visible {
    outline: 3px solid var(--calendar-primary);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .calendar-day.selected {
        border: 3px solid #000000;
    }

    .calendar-day.sunday {
        border: 3px solid #000000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .calendar-day:hover,
    .calendar-nav-btn:hover,
    .calendar-selection-info .clear-btn:hover {
        transform: none !important;
    }
}

/* ==================================================================================
   PRINT STYLES
   ================================================================================== */
@media print {
    .calendar-nav-btn,
    .calendar-selection-info .clear-btn,
    .calendar-sunday-notice {
        display: none;
    }

    .calendar-header,
    .calendar-grid {
        border-color: #000;
    }

    .calendar-day {
        border-color: #000;
    }
}

/* ==================================================================================
   DARK MODE (Optional - für spätere Implementierung)
   ================================================================================== */
@media (prefers-color-scheme: dark) {
    /*
    :root {
        --calendar-bg: #1e1e1e;
        --calendar-text: #ffffff;
        --calendar-border: #3a3a3a;
        --calendar-text-secondary: #b0b0b0;
    }
    */
}