/* ============================================================
   hf-studio — Cinematic Hero + Carousel (Panel 1, 2026-05-11)
   Reference: Netflix Home billboard + row pattern
   - https://www.netflix.com (gated; pattern is well-documented in
     Netflix UX talks: dark gradient overlay, horizontal carousel
     with fade masks + arrow nav, white-on-dark, weight variation)
   - https://netflixtechblog.com/ (Tudum tech blog — Hawkins design system)
   Borrowed UX choices:
   - Hero billboard with left-half text overlay: Netflix's "Billboard"
     pattern, optimized for portrait visual + landscape content title.
   - Card hover scale ≤ 1.1: human eye reads <1.1 as "lift" not "pop",
     keeping carousel rhythm continuous (Netflix uses 1.05, we use 1.06
     for slightly denser desktop layout).
   - prefer-reduced-motion: kill all hover scale + auto motion.
   Tokens: --hf-cinematic-* prefix only. Read-only on --hf-* base.
   ============================================================ */

:root {
  /* Surfaces / overlays */
  --hf-cinematic-overlay-strong: rgba(0, 0, 0, 0.92);
  --hf-cinematic-overlay-mid:    rgba(0, 0, 0, 0.55);
  --hf-cinematic-overlay-fade:   rgba(0, 0, 0, 0);
  --hf-cinematic-bottom-fade:    #08090a;

  /* Text on image */
  --hf-cinematic-text-on-image:  #f7f8f8;
  --hf-cinematic-text-meta:      rgba(247, 248, 248, 0.78);
  --hf-cinematic-text-shadow:    0 2px 12px rgba(0, 0, 0, 0.55);

  /* CTA */
  --hf-cinematic-cta-primary-bg:    #ffffff;
  --hf-cinematic-cta-primary-text:  #08090a;
  --hf-cinematic-cta-primary-hover: rgba(255, 255, 255, 0.88);
  --hf-cinematic-cta-ghost-bg:      rgba(247, 248, 248, 0.16);
  --hf-cinematic-cta-ghost-text:    #f7f8f8;
  --hf-cinematic-cta-ghost-hover:   rgba(247, 248, 248, 0.26);

  /* Dimensions */
  --hf-cinematic-hero-h-desktop: clamp(440px, 56vh, 620px);
  --hf-cinematic-hero-h-mobile:  clamp(360px, 68vh, 520px);
  --hf-cinematic-hero-pad-x:     clamp(16px, 4vw, 56px);
  --hf-cinematic-hero-pad-y:     clamp(24px, 6vh, 64px);
  --hf-cinematic-hero-text-max:  min(640px, 50%);

  /* Carousel */
  --hf-cinematic-row-gap:       28px;
  --hf-cinematic-row-label-mb:  10px;
  --hf-cinematic-card-gap:      12px;
  --hf-cinematic-card-w:        clamp(180px, 22vw, 280px);
  --hf-cinematic-card-ar:       4 / 3;
  --hf-cinematic-fade-mask-w:   60px;
  --hf-cinematic-arrow-size:    36px;

  /* Motion */
  --hf-cinematic-hover-scale:    1.06;
  --hf-cinematic-hover-duration: 320ms;
  --hf-cinematic-easing:         cubic-bezier(0.2, 0.7, 0.25, 1);

  /* Layering */
  --hf-cinematic-z-overlay:    1;
  --hf-cinematic-z-content:    2;
  --hf-cinematic-z-arrow:      3;
  --hf-cinematic-z-card-hover: 4;
}

/* ------------------------------------------------------------
   Hero billboard
   ------------------------------------------------------------ */
.hf-cinematic-hero {
  position: relative;
  width: 100%;
  height: var(--hf-cinematic-hero-h-desktop);
  min-height: 360px;
  border-radius: var(--hf-r-xl);
  overflow: hidden;
  background: linear-gradient(135deg, #1a1b2e 0%, #0c0d11 100%);
  isolation: isolate;
  margin-bottom: var(--hf-cinematic-row-gap);
}

@media (max-width: 768px) {
  .hf-cinematic-hero {
    height: clamp(220px, 38dvh, 300px);
    min-height: 220px;
    border-radius: 22px;
    margin-bottom: 18px;
  }
}

.hf-cinematic-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* idle: 극히 미세한 zoom-in 으로 정지 이미지의 정적 느낌 완화 */
  transform: scale(1.04);
  transition: transform 8s var(--hf-cinematic-easing);
}

.hf-cinematic-hero:hover .hf-cinematic-hero__backdrop {
  transform: scale(1.08);
}

.hf-cinematic-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: var(--hf-cinematic-z-overlay);
  background:
    linear-gradient(
      to right,
      var(--hf-cinematic-overlay-strong) 0%,
      var(--hf-cinematic-overlay-mid) 35%,
      var(--hf-cinematic-overlay-fade) 70%
    ),
    linear-gradient(
      to bottom,
      transparent 55%,
      var(--hf-cinematic-bottom-fade) 100%
    );
  pointer-events: none;
}

.hf-cinematic-hero__content {
  position: absolute;
  z-index: var(--hf-cinematic-z-content);
  left: 0;
  bottom: 0;
  padding: var(--hf-cinematic-hero-pad-y) var(--hf-cinematic-hero-pad-x);
  max-width: var(--hf-cinematic-hero-text-max);
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-shadow: var(--hf-cinematic-text-shadow);
}

@media (max-width: 768px) {
  .hf-cinematic-hero__content {
    max-width: 100%;
    bottom: 0;
    right: 0;
    padding: 18px 16px 16px;
    gap: 8px;
  }
}

.hf-cinematic-hero__eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hf-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hf-cinematic-hero__eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: currentColor;
}

.hf-cinematic-hero__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--hf-cinematic-text-on-image);
  margin: 0;
}

@media (max-width: 768px) {
  .hf-cinematic-hero__title {
    font-size: clamp(1.32rem, 6.4vw, 1.82rem);
    line-height: 1.03;
    letter-spacing: -0.035em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .hf-cinematic-hero__subtitle {
    font-size: .78rem;
    line-height: 1.42;
    -webkit-line-clamp: 1;
  }
  .hf-cinematic-hero__meta {
    display: none;
  }
  .hf-cinematic-hero__cta-row {
    gap: 8px;
    margin-top: 2px;
  }
  .hf-cinematic-cta {
    min-height: 40px;
    padding: 8px 12px;
    border-radius: 12px;
    font-size: .8rem;
  }
}

.hf-cinematic-hero__subtitle {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--hf-cinematic-text-meta);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hf-cinematic-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--hf-cinematic-text-meta);
  flex-wrap: wrap;
}

.hf-cinematic-hero__meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

.hf-cinematic-hero__cta-row {
  display: flex;
  gap: 10px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.hf-cinematic-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--hf-r-md);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: background var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing),
              transform var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing);
}

.hf-cinematic-cta--primary {
  background: var(--hf-cinematic-cta-primary-bg);
  color: var(--hf-cinematic-cta-primary-text);
}

.hf-cinematic-cta--primary:hover {
  background: var(--hf-cinematic-cta-primary-hover);
}

.hf-cinematic-cta--ghost {
  background: var(--hf-cinematic-cta-ghost-bg);
  color: var(--hf-cinematic-cta-ghost-text);
  backdrop-filter: blur(6px);
}

.hf-cinematic-cta--ghost:hover {
  background: var(--hf-cinematic-cta-ghost-hover);
}

/* ------------------------------------------------------------
   Carousel row
   ------------------------------------------------------------ */
.hf-cinematic-row {
  position: relative;
  margin-bottom: var(--hf-cinematic-row-gap);
}

@media (max-width: 768px) {
  .hf-cinematic-row {
    margin-bottom: 20px;
  }
  .hf-cinematic-row__head {
    padding: 0 2px;
    margin-bottom: 8px;
  }
  .hf-cinematic-row__label {
    font-size: .86rem;
    letter-spacing: -.01em;
  }
  .hf-cinematic-row__action {
    font-size: .72rem;
  }
  .hf-cinematic-row__scroller {
    gap: 9px;
    padding: 2px 0 8px;
    scroll-padding-inline: 2px;
  }
  .hf-cinematic-card {
    flex-basis: min(42vw, 168px);
    width: min(42vw, 168px);
    border-radius: 13px;
  }
  .hf-cinematic-card__body {
    padding: 10px;
  }
  .hf-cinematic-card__title {
    font-size: .76rem;
    -webkit-line-clamp: 2;
  }
  .hf-cinematic-card__meta {
    font-size: .68rem;
  }
  .hf-cinematic-card__badge {
    top: 8px;
    left: 8px;
    font-size: .58rem;
    padding: 3px 6px;
  }
  .hf-cinematic-row__arrow {
    display: none;
  }
}

.hf-cinematic-row__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--hf-cinematic-row-label-mb);
  padding: 0 4px;
}

.hf-cinematic-row__label {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--hf-text-1);
  letter-spacing: -0.01em;
  margin: 0;
}

.hf-cinematic-row__action {
  font-size: 0.78rem;
  color: var(--hf-text-3);
  text-decoration: none;
  transition: color var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing);
}

.hf-cinematic-row__action:hover {
  color: var(--hf-accent);
}

.hf-cinematic-row__scroller-wrap {
  position: relative;
}

/* 좌우 페이드 mask — content 가 viewport 끝으로 자연 사라지도록 */
.hf-cinematic-row__scroller-wrap::before,
.hf-cinematic-row__scroller-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: var(--hf-cinematic-fade-mask-w);
  pointer-events: none;
  z-index: var(--hf-cinematic-z-arrow);
  opacity: 0;
  transition: opacity var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing);
}

.hf-cinematic-row__scroller-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--hf-bg-marketing), transparent);
}

.hf-cinematic-row__scroller-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--hf-bg-marketing), transparent);
}

.hf-cinematic-row__scroller-wrap[data-has-overflow-left="true"]::before { opacity: 1; }
.hf-cinematic-row__scroller-wrap[data-has-overflow-right="true"]::after { opacity: 1; }

.hf-cinematic-row__scroller {
  display: flex;
  gap: var(--hf-cinematic-card-gap);
  overflow-x: auto;
  overflow-y: visible;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 4px 18px 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.hf-cinematic-row__scroller::-webkit-scrollbar {
  display: none;
}

/* 화살표 버튼 — 데스크탑에서만, hover 시 등장 */
.hf-cinematic-row__arrow {
  position: absolute;
  top: 50%;
  width: var(--hf-cinematic-arrow-size);
  height: calc(var(--hf-cinematic-arrow-size) * 1.4);
  border: none;
  background: rgba(0, 0, 0, 0.65);
  color: var(--hf-cinematic-text-on-image);
  border-radius: var(--hf-r-md);
  cursor: pointer;
  z-index: var(--hf-cinematic-z-arrow);
  opacity: 0;
  transition: opacity var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing),
              background var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  backdrop-filter: blur(4px);
}

.hf-cinematic-row__arrow:hover {
  background: rgba(0, 0, 0, 0.85);
}

.hf-cinematic-row__arrow--left {
  left: -8px;
}

.hf-cinematic-row__arrow--right {
  right: -8px;
}

.hf-cinematic-row__scroller-wrap:hover .hf-cinematic-row__arrow {
  opacity: 1;
}

.hf-cinematic-row__scroller-wrap:focus-within .hf-cinematic-row__arrow {
  opacity: 1;
}

@media (hover: none) {
  /* 터치 디바이스 = 화살표 숨김 (scroll 직접 사용) */
  .hf-cinematic-row__arrow {
    display: none;
  }
}

/* ------------------------------------------------------------
   Card (carousel item)
   ------------------------------------------------------------ */
.hf-cinematic-card {
  flex: 0 0 var(--hf-cinematic-card-w);
  width: var(--hf-cinematic-card-w);
  aspect-ratio: var(--hf-cinematic-card-ar);
  position: relative;
  border-radius: var(--hf-r-lg);
  overflow: hidden;
  background: var(--hf-bg-l3);
  border: 1px solid var(--hf-border-1);
  scroll-snap-align: start;
  cursor: pointer;
  transition: transform var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing),
              box-shadow var(--hf-cinematic-hover-duration) var(--hf-cinematic-easing),
              z-index 0s linear var(--hf-cinematic-hover-duration);
  text-decoration: none;
  color: inherit;
  display: block;
}

.hf-cinematic-card:hover,
.hf-cinematic-card:focus-visible {
  transform: scale(var(--hf-cinematic-hover-scale));
  z-index: var(--hf-cinematic-z-card-hover);
  box-shadow: var(--hf-shadow-lg);
  transition-delay: 0s, 0s, 0s;
  outline: none;
}

.hf-cinematic-card:focus-visible {
  outline: 2px solid var(--hf-accent);
  outline-offset: 2px;
}

.hf-cinematic-card__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--hf-bg-panel);
}

.hf-cinematic-card__media--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--hf-bg-panel), var(--hf-bg-l3));
  color: var(--hf-text-4);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hf-cinematic-card__gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.78) 0%,
    rgba(0, 0, 0, 0.32) 38%,
    transparent 62%
  );
  pointer-events: none;
}

.hf-cinematic-card__body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--hf-cinematic-text-on-image);
}

.hf-cinematic-card__title {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

.hf-cinematic-card__meta {
  font-size: 0.7rem;
  color: var(--hf-cinematic-text-meta);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hf-cinematic-card__badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 2px 8px;
  border-radius: var(--hf-r-sm);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(0, 0, 0, 0.7);
  color: var(--hf-cinematic-text-on-image);
  backdrop-filter: blur(4px);
}

.hf-cinematic-card__badge--accent {
  background: var(--hf-accent);
  color: #ffffff;
}

/* ------------------------------------------------------------
   prefer-reduced-motion: kill all motion
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .hf-cinematic-hero__backdrop,
  .hf-cinematic-hero:hover .hf-cinematic-hero__backdrop {
    transform: none;
    transition: none;
  }
  .hf-cinematic-card,
  .hf-cinematic-card:hover,
  .hf-cinematic-card:focus-visible {
    transform: none;
    transition: none;
  }
  .hf-cinematic-cta,
  .hf-cinematic-row__arrow,
  .hf-cinematic-row__scroller-wrap::before,
  .hf-cinematic-row__scroller-wrap::after {
    transition: none;
  }
  .hf-cinematic-row__scroller {
    scroll-behavior: auto;
  }
}

/* ------------------------------------------------------------
   Light theme adjustments
   ------------------------------------------------------------ */
.light .hf-cinematic-hero {
  background: linear-gradient(135deg, #e8e9f3 0%, #f7f8f8 100%);
}

.light .hf-cinematic-row__scroller-wrap::before {
  background: linear-gradient(to right, #ffffff, transparent);
}

.light .hf-cinematic-row__scroller-wrap::after {
  background: linear-gradient(to left, #ffffff, transparent);
}

.light .hf-cinematic-card {
  background: #f3f4f5;
  border-color: rgba(0, 0, 0, 0.06);
}