/**
 * CYKLBOARD — MODULE: CLASSES.CSS
 * iOS-style Calendar View + Day Panel + Class Cards
 */

/* ── CALENDAR WRAPPER ────────────────────────────────────────── */
.cal-wrapper {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-5) var(--space-4);
    margin-bottom: var(--space-4);
    position: relative;
    overflow: hidden;
}

.cal-wrapper::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--primary-linear);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ── CALENDAR HEADER ─────────────────────────────────────────── */
.cal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-5);
    padding: 0 var(--space-1);
}

.cal-header__title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
}

.cal-header__month {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--text-high);
    letter-spacing: -0.01em;
    line-height: 1;
    text-transform: capitalize;
}

.cal-header__year {
    font-size: var(--font-size-sm);
    color: var(--primary-neon);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.cal-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-surface2);
    border: 1px solid var(--border-color);
    color: var(--text-high);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.cal-nav-btn svg {
    width: 16px;
    height: 16px;
}

.cal-nav-btn:hover {
    background: var(--primary-neon-glow2);
    border-color: var(--border-neon);
    color: var(--primary-neon);
    box-shadow: var(--glow-neon-sm);
}

.cal-nav-btn:active {
    transform: scale(0.92);
}

/* ── WEEKDAY LABELS ──────────────────────────────────────────── */
.cal-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    margin-bottom: var(--space-2);
    gap: 2px;
}

.cal-weekdays span {
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding: var(--space-1) 0;
}

/* ── DAY GRID ────────────────────────────────────────────────── */
.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
}

/* ── DAY CELL ────────────────────────────────────────────────── */
.cal-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    aspect-ratio: 1 / 1.15;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 150ms ease;
    position: relative;
    padding: 4px 2px;
    -webkit-tap-highlight-color: transparent;
}

.cal-day__number {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-high);
    line-height: 1;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 150ms ease;
    flex-shrink: 0;
}

.cal-day:hover:not(:disabled) {
    background: var(--bg-surface2);
    border-color: var(--border-color);
}

.cal-day:hover .cal-day__number {
    background: rgba(var(--primary-neon-rgb, 0,200,255), 0.12);
}

/* Today */
.cal-day--today .cal-day__number {
    background: var(--primary-neon);
    color: #000;
    font-weight: 800;
    box-shadow: var(--glow-neon-sm);
}

/* Selected */
.cal-day--selected {
    background: var(--primary-neon-glow2, rgba(0,200,255,0.06));
    border-color: var(--border-neon);
}

.cal-day--selected .cal-day__number {
    color: var(--primary-neon);
    font-weight: 800;
}

.cal-day--today.cal-day--selected .cal-day__number {
    background: var(--primary-neon);
    color: #000;
}

/* Other month (greyed) */
.cal-day--other-month {
    opacity: 0.28;
}

.cal-day--other-month .cal-day__number {
    color: var(--text-muted);
}

/* Dots row */
.cal-day__dots {
    display: flex;
    gap: 3px;
    justify-content: center;
    min-height: 6px;
}

.cal-day__dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    flex-shrink: 0;
}

.cal-day__dot--scheduled { background: #00C8FF; }
.cal-day__dot--live { background: #00E676; animation: dotPulse 1.5s ease-in-out infinite; }
.cal-day__dot--finished { background: var(--text-muted); }
.cal-day__dot--cancelled { background: #ff4444; }

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.7); }
}

/* Loading overlay inside calendar */
.cal-loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8) 0 var(--space-4);
    gap: var(--space-3);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.cal-loading.is-visible {
    display: flex;
}

.cal-loading .spinner {
    width: 24px;
    height: 24px;
}

/* ── DAY PANEL ───────────────────────────────────────────────── */
.cal-panel {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: slideUp 250ms ease both;
    padding-bottom: var(--space-2);
}

.cal-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border-color);
}

.cal-panel__date {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-high);
    text-transform: capitalize;
}

.cal-panel__count {
    font-size: var(--font-size-xs);
    color: var(--primary-neon);
    font-weight: 700;
    background: var(--primary-neon-glow2, rgba(0,200,255,0.08));
    padding: 2px 10px;
    border-radius: 999px;
}

.cal-panel__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
}

/* Empty state inside panel */
.cal-panel__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-8) var(--space-4);
    text-align: center;
}

.cal-panel__empty-icon {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    opacity: 0.5;
}

.cal-panel__empty p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin: 0;
}

/* ── CLASS CARD (reutilizado en el panel) ────────────────────── */
.class-card {
    background: var(--bg-surface2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    display: grid;
    grid-template-columns: 90px 1fr auto;
    align-items: center;
    gap: var(--space-5);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    animation: slideUp 250ms ease both;
}

.class-card:hover {
    border-color: var(--border-neon);
    background: var(--bg-surface2);
    transform: translateY(-1px);
    box-shadow: var(--glow-neon-sm);
}

/* Time display */
.class-card__time {
    display: flex;
    flex-direction: column;
    align-items: center;
    border-right: 1px solid var(--border-color);
    padding-right: var(--space-5);
}

.class-card__start {
    font-family: var(--font-condensed);
    font-size: var(--font-size-xl);
    font-weight: 900;
    color: var(--primary-neon);
    line-height: 1;
}

.class-card__end {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Info section */
.class-card__info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
}

.class-card__name {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-high);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.class-card__instructor {
    font-size: var(--font-size-sm);
    color: var(--text-low);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Meta / Actions */
.class-card__meta {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.class-card__occupancy {
    font-size: 11px;
    color: var(--text-muted);
}

/* Status Badges */
.class-card__status {
    position: absolute;
    top: 0;
    right: 0;
    padding: 2px 10px;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom-left-radius: 8px;
}

.class-card__status--scheduled { background: rgba(0, 200, 255, 0.15); color: #00C8FF; }
.class-card__status--live      { background: rgba(0, 230, 118, 0.15); color: #00E676; animation: blink 2s infinite; }
.class-card__status--finished  { background: rgba(255, 255, 255, 0.07); color: var(--text-muted); }
.class-card__status--cancelled { background: rgba(255,68,68,0.12); color: #ff4444; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ── MODAL SPECIFIC ─────────────────────────────────────────── */
.classes-modal {
    max-width: 500px;
}

/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 600px) {
    .cal-day__number {
        width: 26px;
        height: 26px;
        font-size: 13px;
    }

    .class-card {
        grid-template-columns: 1fr;
        gap: var(--space-3);
        text-align: center;
    }

    .class-card__time {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: var(--space-3);
        flex-direction: row;
        justify-content: center;
        gap: var(--space-2);
    }

    .class-card__meta {
        text-align: center;
        align-items: center;
    }

    .cal-panel__list {
        padding: var(--space-3);
    }
}