/**
 * ═══════════════════════════════════════════════════════════════════════════
 * FLATPICKR KALENDER - GEMEINSAMES STYLING
 * Einheitliches Layout für Customer-Appointment & Deal Card Popover
 * ═══════════════════════════════════════════════════════════════════════════
 * 
 * Verwendung:
 * - customer-appointment.html
 * - index.html (Deal Card "Terminiert" Popover via .date-popover)
 * 
 * Akzeptanzkriterien (Januar 2026):
 * - 01.01.2026 muss unter Do (Donnerstag) stehen
 * - 09.01.2026 muss unter Fr (Freitag) stehen
 * - Mo-Start, keine Verschiebung
 */

/* ═══════════════════════════════════════════════════════════════════════════
   CSS VARIABLEN
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --fp-vw-blue: #12326d;
    --fp-vw-blue-light: #1e40af;
    --fp-accent-green: #0ea570;
    --fp-calendar-width: 340px;
    --fp-day-size: 40px;
    --fp-border-radius: 12px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   KALENDER-CONTAINER
   ═══════════════════════════════════════════════════════════════════════════ */

.flatpickr-calendar.vw-calendar,
.date-popover .flatpickr-calendar,
.date-picker-container .flatpickr-calendar {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
    font-size: 14px !important;
    width: var(--fp-calendar-width) !important;
    max-width: 95vw !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2) !important;
    border-radius: var(--fp-border-radius) !important;
    border: 2px solid var(--fp-vw-blue) !important;
    padding: 8px !important;
    background: white !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-innerContainer,
.date-popover .flatpickr-calendar .flatpickr-innerContainer,
.date-picker-container .flatpickr-calendar .flatpickr-innerContainer {
    width: 100% !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-rContainer,
.date-popover .flatpickr-calendar .flatpickr-rContainer,
.date-picker-container .flatpickr-calendar .flatpickr-rContainer {
    width: 100% !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MONAT/JAHR HEADER
   ═══════════════════════════════════════════════════════════════════════════ */

.flatpickr-calendar.vw-calendar .flatpickr-months,
.date-popover .flatpickr-calendar .flatpickr-months,
.date-picker-container .flatpickr-calendar .flatpickr-months {
    padding: 8px 0 !important;
    min-height: 48px !important;
    display: flex !important;
    align-items: center !important;
    box-sizing: border-box !important;
    border-bottom: 1px solid rgba(18, 50, 109, 0.1) !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-month,
.date-popover .flatpickr-calendar .flatpickr-month,
.date-picker-container .flatpickr-calendar .flatpickr-month {
    height: 40px !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-current-month,
.date-popover .flatpickr-calendar .flatpickr-current-month,
.date-picker-container .flatpickr-calendar .flatpickr-current-month {
    font-size: 18px !important;
    font-weight: 700 !important;
    color: var(--fp-vw-blue) !important;
    position: static !important;
    line-height: 1.2 !important;
    padding: 2px 0 !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-innerContainer,
.date-popover .flatpickr-calendar .flatpickr-innerContainer,
.date-picker-container .flatpickr-calendar .flatpickr-innerContainer {
    margin-top: 4px !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-current-month .flatpickr-monthDropdown-months,
.date-popover .flatpickr-calendar .flatpickr-current-month .flatpickr-monthDropdown-months,
.date-picker-container .flatpickr-calendar .flatpickr-current-month .flatpickr-monthDropdown-months {
    font-size: 18px !important;
    font-weight: 700 !important;
    color: var(--fp-vw-blue) !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-current-month input.cur-year,
.date-popover .flatpickr-calendar .flatpickr-current-month input.cur-year,
.date-picker-container .flatpickr-calendar .flatpickr-current-month input.cur-year {
    font-size: 18px !important;
    font-weight: 700 !important;
    color: var(--fp-vw-blue) !important;
}

/* Navigation Pfeile */
.flatpickr-calendar.vw-calendar .flatpickr-prev-month,
.flatpickr-calendar.vw-calendar .flatpickr-next-month,
.date-popover .flatpickr-calendar .flatpickr-prev-month,
.date-popover .flatpickr-calendar .flatpickr-next-month,
.date-picker-container .flatpickr-calendar .flatpickr-prev-month,
.date-picker-container .flatpickr-calendar .flatpickr-next-month {
    width: 36px !important;
    height: 36px !important;
    padding: 8px !important;
    border-radius: 8px !important;
    transition: background 0.2s ease !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-prev-month:hover,
.flatpickr-calendar.vw-calendar .flatpickr-next-month:hover,
.date-popover .flatpickr-calendar .flatpickr-prev-month:hover,
.date-popover .flatpickr-calendar .flatpickr-next-month:hover,
.date-picker-container .flatpickr-calendar .flatpickr-prev-month:hover,
.date-picker-container .flatpickr-calendar .flatpickr-next-month:hover {
    background: rgba(18, 50, 109, 0.1) !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-prev-month svg,
.flatpickr-calendar.vw-calendar .flatpickr-next-month svg,
.date-popover .flatpickr-calendar .flatpickr-prev-month svg,
.date-popover .flatpickr-calendar .flatpickr-next-month svg,
.date-picker-container .flatpickr-calendar .flatpickr-prev-month svg,
.date-picker-container .flatpickr-calendar .flatpickr-next-month svg {
    width: 16px !important;
    height: 16px !important;
    fill: var(--fp-vw-blue) !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   WOCHENTAGE (Mo Di Mi Do Fr Sa So)
   KRITISCH: Muss exakt zur Tagesbreite passen!
   ═══════════════════════════════════════════════════════════════════════════ */

.flatpickr-calendar.vw-calendar .flatpickr-weekdays,
.date-popover .flatpickr-calendar .flatpickr-weekdays,
.date-picker-container .flatpickr-calendar .flatpickr-weekdays {
    height: 36px !important;
    width: 100% !important;
    display: flex !important;
    align-items: center !important;
    background: transparent !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-weekdaycontainer,
.date-popover .flatpickr-calendar .flatpickr-weekdaycontainer,
.date-picker-container .flatpickr-calendar .flatpickr-weekdaycontainer {
    display: flex !important;
    width: 100% !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-weekday,
.date-popover .flatpickr-calendar .flatpickr-weekday,
.date-picker-container .flatpickr-calendar .flatpickr-weekday {
    font-size: 13px !important;
    font-weight: 700 !important;
    color: var(--fp-vw-blue) !important;
    text-transform: none !important;
    /* KRITISCH: Gleiche Breite wie .flatpickr-day */
    flex: 1 1 calc(100% / 7) !important;
    max-width: calc(100% / 7) !important;
    text-align: center !important;
    background: transparent !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TAGE-CONTAINER
   ═══════════════════════════════════════════════════════════════════════════ */

.flatpickr-calendar.vw-calendar .flatpickr-days,
.date-popover .flatpickr-calendar .flatpickr-days,
.date-picker-container .flatpickr-calendar .flatpickr-days {
    width: 100% !important;
}

.flatpickr-calendar.vw-calendar .dayContainer,
.date-popover .flatpickr-calendar .dayContainer,
.date-picker-container .flatpickr-calendar .dayContainer {
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: flex-start !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   EINZELNE TAGE
   KRITISCH: Prozentuale Breite für exakte Grid-Ausrichtung
   ═══════════════════════════════════════════════════════════════════════════ */

.flatpickr-calendar.vw-calendar .flatpickr-day,
.date-popover .flatpickr-calendar .flatpickr-day,
.date-picker-container .flatpickr-calendar .flatpickr-day {
    /* 100% / 7 Tage - margin */
    flex: 0 0 calc((100% / 7) - 4px) !important;
    max-width: calc((100% / 7) - 4px) !important;
    height: var(--fp-day-size) !important;
    line-height: var(--fp-day-size) !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    border-radius: 8px !important;
    margin: 2px !important;
    border: 1px solid transparent !important;
    transition: all 0.15s ease !important;
}

/* Hover-Effekt */
.flatpickr-calendar.vw-calendar .flatpickr-day:hover,
.date-popover .flatpickr-calendar .flatpickr-day:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day:hover {
    background: var(--fp-vw-blue-light) !important;
    color: white !important;
}

/* Ausgewählter Tag */
.flatpickr-calendar.vw-calendar .flatpickr-day.selected,
.flatpickr-calendar.vw-calendar .flatpickr-day.selected:hover,
.date-popover .flatpickr-calendar .flatpickr-day.selected,
.date-popover .flatpickr-calendar .flatpickr-day.selected:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day.selected,
.date-picker-container .flatpickr-calendar .flatpickr-day.selected:hover {
    background: var(--fp-vw-blue) !important;
    border-color: var(--fp-vw-blue) !important;
    color: white !important;
    font-weight: 700 !important;
}

/* Heute */
.flatpickr-calendar.vw-calendar .flatpickr-day.today,
.date-popover .flatpickr-calendar .flatpickr-day.today,
.date-picker-container .flatpickr-calendar .flatpickr-day.today {
    border: 2px solid var(--fp-accent-green) !important;
    background: rgba(14, 165, 112, 0.1) !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-day.today:hover,
.date-popover .flatpickr-calendar .flatpickr-day.today:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day.today:hover {
    background: var(--fp-accent-green) !important;
    color: white !important;
}

/* Deaktivierte Tage (Vergangenheit) */
.flatpickr-calendar.vw-calendar .flatpickr-day.flatpickr-disabled,
.date-popover .flatpickr-calendar .flatpickr-day.flatpickr-disabled,
.date-picker-container .flatpickr-calendar .flatpickr-day.flatpickr-disabled {
    color: #ccc !important;
    cursor: default !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-day.flatpickr-disabled:hover,
.date-popover .flatpickr-calendar .flatpickr-day.flatpickr-disabled:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day.flatpickr-disabled:hover {
    background: transparent !important;
    color: #ccc !important;
}

/* Vorheriger/Nächster Monat Tage */
.flatpickr-calendar.vw-calendar .flatpickr-day.prevMonthDay,
.flatpickr-calendar.vw-calendar .flatpickr-day.nextMonthDay,
.date-popover .flatpickr-calendar .flatpickr-day.prevMonthDay,
.date-popover .flatpickr-calendar .flatpickr-day.nextMonthDay,
.date-picker-container .flatpickr-calendar .flatpickr-day.prevMonthDay,
.date-picker-container .flatpickr-calendar .flatpickr-day.nextMonthDay {
    color: #9ca3af !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   KAPAZITÄTS-MARKIERUNGEN
   Volle Tage = Rot, Fast voll = Orange, Verfügbar = Grün
   ═══════════════════════════════════════════════════════════════════════════ */

/* Volle Tage: Rot + nicht auswählbar */
.flatpickr-calendar.vw-calendar .flatpickr-day.day-full,
.date-popover .flatpickr-calendar .flatpickr-day.day-full,
.date-picker-container .flatpickr-calendar .flatpickr-day.day-full,
.flatpickr-day.day-full {
    background: #fecaca !important;
    border: 2px solid #dc2626 !important;
    color: #991b1b !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    font-weight: bold !important;
    text-decoration: line-through !important;
    opacity: 0.85 !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-day.day-full:hover,
.date-popover .flatpickr-calendar .flatpickr-day.day-full:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day.day-full:hover,
.flatpickr-day.day-full:hover {
    background: #fca5a5 !important;
    color: #991b1b !important;
}

/* Fast volle Tage: Orange/Gelb - Warnung */
.flatpickr-calendar.vw-calendar .flatpickr-day.day-almost-full,
.date-popover .flatpickr-calendar .flatpickr-day.day-almost-full,
.date-picker-container .flatpickr-calendar .flatpickr-day.day-almost-full,
.flatpickr-day.day-almost-full {
    background: #fef3c7 !important;
    border: 2px solid #f59e0b !important;
    color: #92400e !important;
    font-weight: 600 !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-day.day-almost-full:hover,
.date-popover .flatpickr-calendar .flatpickr-day.day-almost-full:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day.day-almost-full:hover,
.flatpickr-day.day-almost-full:hover {
    background: #fde68a !important;
}

/* Freie Tage: Grün */
.flatpickr-calendar.vw-calendar .flatpickr-day.day-available,
.date-popover .flatpickr-calendar .flatpickr-day.day-available,
.date-picker-container .flatpickr-calendar .flatpickr-day.day-available,
.flatpickr-day.day-available {
    background: #d1fae5 !important;
    border: 1px solid #10b981 !important;
    color: #065f46 !important;
}

.flatpickr-calendar.vw-calendar .flatpickr-day.day-available:hover,
.date-popover .flatpickr-calendar .flatpickr-day.day-available:hover,
.date-picker-container .flatpickr-calendar .flatpickr-day.day-available:hover,
.flatpickr-day.day-available:hover {
    background: #a7f3d0 !important;
    border-color: #059669 !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOBILE ANPASSUNGEN
   ═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 640px) {
    .flatpickr-calendar.vw-calendar,
    .date-popover .flatpickr-calendar,
    .date-picker-container .flatpickr-calendar {
        width: 100% !important;
        max-width: 320px !important;
    }
    
    .flatpickr-calendar.vw-calendar .flatpickr-day,
    .date-popover .flatpickr-calendar .flatpickr-day,
    .date-picker-container .flatpickr-calendar .flatpickr-day {
        height: 36px !important;
        line-height: 36px !important;
        font-size: 13px !important;
    }
    
    .flatpickr-calendar.vw-calendar .flatpickr-weekday,
    .date-popover .flatpickr-calendar .flatpickr-weekday,
    .date-picker-container .flatpickr-calendar .flatpickr-weekday {
        font-size: 11px !important;
    }
    
    .flatpickr-calendar.vw-calendar .flatpickr-current-month,
    .date-popover .flatpickr-calendar .flatpickr-current-month,
    .date-picker-container .flatpickr-calendar .flatpickr-current-month {
        font-size: 16px !important;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   LEGENDE (optional - für beide Kontexte)
   ═══════════════════════════════════════════════════════════════════════════ */

.capacity-legend {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 12px;
    font-size: 12px;
    color: #6b7280;
}

.capacity-legend span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.capacity-legend .dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    display: inline-block;
}

.capacity-legend .dot.free {
    background: #d1fae5;
    border: 1px solid #10b981;
}

.capacity-legend .dot.almost {
    background: #fef3c7;
    border: 1px solid #f59e0b;
}

.capacity-legend .dot.full {
    background: #fecaca;
    border: 1px solid #dc2626;
}