/* [공통 카드 입력과 미디어 / Shared card input and media]
   카드-히어로·카드-포스터·카드-배너의 드래그와 크롭 규칙을 공유합니다.
   Hero, poster and banner cards share input and proportional media rules. */
.card {
    position: relative;
    min-width: 0;
    user-select: none;
    -webkit-user-select: none;
}

.card * {
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
}

/* [카드-포스터 / Card-poster] */
.card--poster {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.card-poster-link {
    display: block;
    height: 100%;
    color: inherit;
}

.poster-media,
.card--poster .program-art {
    position: relative;
    width: 100%;
    height: auto;
    padding: 0;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    border-radius: var(--radius-media);
    background: #f0f1ef;
}

.poster-media img,
.card--poster .program-art img {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    object-fit: cover;
    max-height: none;
    transform: none;
}

.poster-tag {
    position: absolute;
    inset: 14px auto auto 14px;
    padding: 5px 9px;
    border-radius: 4px;
    background: white;
    color: var(--ink);
    font-size: var(--text-meta);
    font-weight: var(--weight-title);
}

.poster-tag.today { background: var(--human); }

.card--poster .favorite-button {
    position: absolute;
    top: 12px;
    right: 12px;
    width: var(--control-size);
    height: var(--control-size);
    border: 0;
    border-radius: 50%;
    color: var(--ink);
    background: white;
    opacity: 0;
    pointer-events: none;
    transform: none;
    transition: opacity 180ms ease;
}

.card--poster:is(:hover, :focus-within) .favorite-button {
    opacity: 1;
    pointer-events: auto;
}

.card--poster .favorite-button.selected { background: var(--human); }

.card--poster .program-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 10px;
    margin: 20px 0 8px;
    padding: 0;
    color: var(--muted);
    font-size: var(--text-meta);
}

.card--poster h3 {
    min-height: 0;
    margin: 0 0 12px;
    padding: 0;
    font-size: var(--text-card-title);
    font-weight: var(--weight-title);
    line-height: 1.5;
}

.card--poster :is(.program-card-date, .program-card-venue) {
    margin: 4px 0 0;
    padding: 0;
    color: var(--muted);
    font-size: var(--text-meta);
    line-height: 1.7;
    font-variant-numeric: tabular-nums;
}

/* [카드-히어로와 트랙 / Card-hero and track]
   전환마다 새 검은 막을 붙이지 않고 고정 pseudo-element의 opacity를 보간합니다.
   Interpolate a persistent shade instead of inserting a dark overlay on each change. */
.season-stage {
    touch-action: pan-y;
    cursor: grab;
}

.season-stage[data-dragging="true"] { cursor: grabbing; }

.season-track {
    display: flex;
    gap: var(--slide-gap);
    width: max-content;
    margin-left: calc((100% - var(--slide-width)) / 2);
    transform: translate3d(calc(-2 * (var(--slide-width) + var(--slide-gap)) + var(--drag-x, 0px)), 0, 0);
}

.season-track.is-moving {
    transition: transform var(--carousel-duration, 800ms) cubic-bezier(0.22, 0.61, 0.36, 1);
}

.card--hero {
    isolation: isolate;
    width: var(--slide-width);
    min-height: clamp(500px, 39vw, 600px);
    flex: 0 0 var(--slide-width);
    overflow: hidden;
    border-radius: var(--radius-banner);
    background: #10100e;
    color: white;
}

.card--hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background: #000000;
    opacity: 0.32;
    transition: opacity 650ms ease;
}

.card--hero.is-active::before { opacity: 0; }

.card--hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: linear-gradient(90deg, rgb(0 0 0 / 70%), rgb(0 0 0 / 8%) 80%);
}

.season-card-link {
    display: block;
    min-height: inherit;
    height: 100%;
    color: inherit;
}

.card--hero .season-image {
    position: absolute;
    inset: 0;
    z-index: -2;
    width: 100%;
    height: 100%;
    padding: 0;
    object-fit: cover;
    object-position: 64% center;
}

.season-copy {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    min-height: inherit;
    padding: clamp(32px, 4.6vw, 72px);
    opacity: 0;
    transition: opacity 650ms ease;
}

.is-active .season-copy { opacity: 1; }
.season-label { margin: 0 0 24px; font-size: var(--text-meta); font-weight: 550; }
.season-copy h2 { margin: 0 0 30px; font-size: clamp(42px, 4.3vw, 66px); font-weight: 650; line-height: 1.22; letter-spacing: -0.055em; }
.season-name { margin: 0 0 8px; font-size: var(--text-item-title); font-weight: 600; line-height: 1.5; }
.season-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 0 0 28px; font-size: var(--text-meta); }

/* [카드-배너 / Card-banner] */
.card--banner {
    overflow: hidden;
    padding: 0;
    border-radius: var(--radius-banner);
    background: var(--sky);
    color: var(--ink);
}

.card-banner-link {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    padding: 48px 64px;
    color: inherit;
}

.card--banner h2 { margin: 0 0 22px; font-size: clamp(28px, 2.8vw, 38px); line-height: 1.35; }
.invitation-art { position: relative; display: flex; flex-direction: column; justify-content: center; min-width: 260px; padding-right: 24px; line-height: 0.9; }
.invitation-art > span { position: relative; z-index: 1; font-size: 72px; font-weight: 750; letter-spacing: -0.07em; }
.invitation-art b { position: relative; z-index: 1; margin-top: 12px; font-size: 40px; font-weight: 650; letter-spacing: -0.045em; }
.invitation-art i { position: absolute; top: 4px; right: 0; width: 180px; height: 180px; border: 1px solid rgb(0 0 0 / 35%); border-radius: 50%; }

@media (hover: none), (pointer: coarse) {
    .card--poster .favorite-button { opacity: 1; pointer-events: auto; }
}

@media (max-width: 800px) {
    .card--hero { min-height: 510px; }
    .season-copy { padding: 36px; }
    .season-copy h2 { font-size: 46px; }
    .card-banner-link { padding: 36px; gap: 24px; }
    .invitation-art { min-width: 160px; }
    .invitation-art > span { font-size: 58px; }
    .invitation-art b { font-size: 30px; }
    .invitation-art i { width: 140px; height: 140px; }
}

@media (max-width: 600px) {
    .card--hero { min-height: 540px; }
    .card--hero .season-image { object-position: 72% center; }
    .card--hero::after { background: linear-gradient(0deg, rgb(0 0 0 / 85%), rgb(0 0 0 / 15%) 90%); }
    .season-copy { justify-content: flex-end; padding: 28px 24px; }
    .season-label { margin-bottom: 14px; }
    .season-copy h2 { font-size: clamp(34px, 8.5vw, 44px); margin-bottom: 20px; }
    .season-meta { gap: 4px 12px; margin-bottom: 22px; }
    .season-copy .button { padding: 12px 18px; font-size: var(--text-sm); }
    .card-banner-link { padding: 30px 26px; }
    .card--banner h2 { font-size: 28px; }
    .invitation-art { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .card--hero::before, .season-copy, .card--poster .favorite-button { transition-duration: 0.01ms; }
}