/* ══════════════════════════════════════════════════════════
   Availability Picker – RonDesignLab Style
   Click day → show time slots
   Click time slot → toggle unavailable
   Click day again → toggle whole day off
   ══════════════════════════════════════════════════════════ */

/* ── Container ── */
.avail-picker {
    background: var(--bg-card);
    border-radius: var(--r-xl);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.avail-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.avail-picker-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.avail-picker-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ── Week Strip ── */
.avail-week-strip {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin-bottom: 20px;
}

.avail-day-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 8px;
    background: var(--bg-input);
    border: none;
    border-radius: var(--r-md);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
    position: relative;
}

.avail-day-btn:hover {
    background: var(--bg-hover);
}

.avail-day-btn:active {
    transform: scale(0.96);
}

.avail-day-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.avail-day-date {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Active day (expanded) */
.avail-day-btn.active {
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 2px var(--accent);
}

.avail-day-btn.active .avail-day-label,
.avail-day-btn.active .avail-day-date {
    color: var(--accent-text);
}

/* Day off (whole day unavailable) */
.avail-day-btn.day-off {
    background: var(--bg-hover);
    opacity: 0.4;
    filter: grayscale(1);
    cursor: pointer;
}

.avail-day-btn.day-off .avail-day-label,
.avail-day-btn.day-off .avail-day-date {
    color: var(--text-muted);
}

/* Available indicator dot */
.avail-day-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    margin-top: 2px;
}

.avail-day-btn.day-off .avail-day-dot {
    background: var(--text-muted);
}

/* Partial unavailable */
.avail-day-btn.partial .avail-day-dot {
    background: var(--warning);
}

/* ── Time Slots Grid ── */
.avail-time-panel {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 180ms var(--ease), opacity 150ms var(--ease);
}

.avail-time-panel.open {
    max-height: 600px;
    opacity: 1;
    margin-bottom: 16px;
}

.avail-time-panel-inner {
    background: var(--bg-main);
    border-radius: var(--r-lg);
    padding: 16px;
}

.avail-time-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.avail-time-toggle-all {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-text);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font);
    padding: 4px 8px;
    border-radius: var(--r-sm);
    transition: var(--transition);
}

.avail-time-toggle-all:hover {
    background: var(--accent-soft);
}

.avail-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 6px;
}

.avail-slot {
    padding: 8px 4px;
    background: var(--bg-surface);
    border: none;
    border-radius: var(--r-sm);
    font-family: var(--font);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    text-align: center;
    transition: background 120ms var(--ease), color 120ms var(--ease), transform 100ms var(--ease);
    position: relative;
}

.avail-slot:hover {
    background: var(--bg-hover);
}

.avail-slot:active {
    transform: scale(0.93);
}

/* Available (default) */
.avail-slot.available {
    background: var(--success-soft);
    color: var(--success);
}

.avail-slot.available::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--success);
}

/* Unavailable */
.avail-slot.unavailable {
    background: var(--bg-hover);
    color: var(--text-muted);
    opacity: 0.4;
    filter: grayscale(1);
}

.avail-slot.unavailable::before {
    background: var(--text-muted);
}

/* ── Legend ── */
.avail-legend {
    display: flex;
    gap: 16px;
    margin-top: 16px;
    padding-top: 12px;
}

.avail-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.avail-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.avail-legend-dot.green {
    background: var(--success);
}

.avail-legend-dot.red {
    background: var(--danger);
}

.avail-legend-dot.orange {
    background: var(--warning);
}

/* ── Responsive ── */
@media (max-width: 600px) {
    .avail-week-strip {
        grid-template-columns: repeat(7, 1fr);
        gap: 4px;
    }

    .avail-day-btn {
        padding: 8px 4px;
    }

    .avail-day-label {
        font-size: 0.6rem;
    }

    .avail-day-date {
        font-size: 0.85rem;
    }

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