/* ====== Theme (Morandi grey-blue, subtle) ====== */
:root {
  --bg: #0d0f12;
  --bg2: #10141a;
  --panel: #171c24;
  --line: #1e2631;
  --text: #f3f5f9;
  --muted: #c8cdd6;
  --accent: #8ea1b2;

  /* Film strip variables */
  --frame-h: clamp(150px, 32vh, 260px);
  --gap: 16px;
  --duration: 26s;
  --hole-size: 16px;
  --hole-gap: 12px;
  --strip: #111;
}

/* ====== Basics ====== */
* {
  box-sizing: border-box
}

body {
  margin: 0;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg), var(--bg2));
  padding-top: var(--nav-h, 64px);
  /* will be set by JS; 64px fallback */
  padding-top: calc(var(--nav-h, 64px) + env(safe-area-inset-top));
  /* iOS notch */

}

.container {
  width: min(1100px, 92%);
  margin-inline: auto
}

/* ====== Nav ====== */
.nav {
  position: fixed;
  /* was: sticky */
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  /* above everything */
  transition: transform 200ms ease;
  will-change: transform;
  background: rgba(13, 15, 18, .7);

}

.nav--hidden {
  transform: translateY(-100%);
}

@media (prefers-reduced-motion: reduce) {
  .nav {
    transition: none;
  }
}

.nav__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
}

.brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff, #ffd24d 70%);
  box-shadow: 0 0 10px 2px rgba(255, 210, 77, .28);
}

.links {
  display: flex;
  gap: .8rem
}

.links a {
  color: var(--text);
  text-decoration: none;
  padding: .5rem .8rem;
  border-radius: 999px;
}

.links a:hover {
  background: #ffffff14
}

/* ====== Hero with film-strip background ====== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

@supports (height: 100svh) {
  .hero {
    min-height: 70svh;
  }
}


.hero__content {
  position: relative;
  z-index: 1
}

.marquee {
  display: inline-block;
  padding: .5rem 1rem;
  border-radius: 999px;
  background: #d9ddd6;
  color: #111;
  font-weight: 900;
}

.title {
  margin: .8rem 0 .5rem;
  font-size: clamp(32px, 6vw, 68px);
  font-weight: 1000;
  line-height: 1.05;
}

.subtitle {
  color: var(--muted)
}

.cta {
  display: flex;
  gap: .8rem;
  flex-wrap: wrap;
  margin-top: 14px;
}

.btn {
  display: inline-block;
  padding: 1rem 1.2rem;
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  border: 2px solid #ffffff25;
}

.btn--solid {
  background: linear-gradient(180deg, #2b3442, #202835);
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .35);
}

.btn--ghost {
  background: transparent
}

/* === Film-strip background === */
.filmstrip {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  /* doesn’t block hero buttons/links */
}

.filmstrip .viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.filmstrip .belt {
  position: relative;
  height: 100%;
  /* fill hero vertically */
  display: flex;
  align-items: center;
  gap: var(--gap);
  width: max-content;
  padding-block: 30px;
  /* black top/bottom strip */
  background: var(--strip);
}

.filmstrip .belt::before,
.filmstrip .belt::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: var(--hole-size);
  background:
    repeating-linear-gradient(90deg,
      #fff 0 var(--hole-size),
      transparent var(--hole-size) calc(var(--hole-size) + var(--hole-gap)));
  pointer-events: none;
}

.filmstrip .belt::before {
  top: 6px
}

.filmstrip .belt::after {
  bottom: 6px
}

.filmstrip .frame {
  flex: 0 0 auto;
  height: 100%;
}

.filmstrip .frame img {
  display: block;
  height: 100%;
  width: auto;
  object-fit: cover;
  border-radius: 10px;
}

/* dark overlay (for text readability) – under holes */
.filmstrip .overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg,
      rgba(0, 0, 0, .55),
      rgba(0, 0, 0, .15) 35%,
      rgba(0, 0, 0, .35) 65%,
      rgba(0, 0, 0, .75));
}

/* ====== Sections ====== */
.section {
  padding: 72px 0;
  border-top: 1px solid #ffffff10;
}

.section.alt {
  background: #0f1217
}

.h2 {
  margin: 0 0 .5rem;
  color: var(--accent);
  font-weight: 900;
  text-align: center;
}
h3{
  text-align: center;
}
.lead {
  color: var(--muted)
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 12px;
  text-align: center;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.posters {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.posters .ph {
  aspect-ratio: 148/210;
  background: #1a2130;
  border-radius: 12px;
  background-size: cover;
  background-position: center;
}

#posters>div>div>figure>figcaption {
  text-align: center;
}

.center {
  text-align: center
}

/* 保持外觀與其他 poster 一致 */
.posters .more-poster .ph {
  background: #1a2130;
  border: 1px solid #ffffff1a;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.3s ease, filter 0.3s ease;
}

/* 中間的文字 */
.posters .more-poster .more-text {
  color: var(--text);
  font-weight: 800;
  font-size: 1.2rem;
  text-align: center;
  pointer-events: none;
  /* 讓文字不影響點擊 */
}

/* Hover 效果：放大 + 提亮 */
.posters .more-poster a:hover .ph {
  transform: scale(1.05);
  filter: brightness(1.2);
}

/* 手機觸控閃動效果 */
.posters .more-poster a:active .ph {
  transform: scale(1.05);
  filter: brightness(1.2);
}

/* ====== Responsive ====== */
@media (max-width:900px) {
  .cards {
    grid-template-columns: 1fr
  }

  .posters {
    grid-template-columns: 1fr 1fr
  }
}

@media (max-width:560px) {
  :root {
    --frame-h: 110px;
    --gap: 12px;
    --hole-size: 14px;
    --hole-gap: 8px;
    --duration: 22s;
  }

  .posters {
    grid-template-columns: 1fr
  }
}

:root {
  --frame-h: clamp(150px, 32vh, 260px);
  --gap: 16px;
  --hole-size: 16px;
  --hole-gap: 12px;
  --strip: #111;
  --pxps: 80;
  /* speed in px/sec */
}

.film {
  position: relative;
  width: min(1100px, 92vw);
  height: calc(var(--frame-h) + 60px);
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .3);
}

/* Belt contains both holes & frames so they move together */
.belt {
  display: flex;
  align-items: center;
  gap: var(--gap);
  height: 100%;
  background: var(--strip);
  padding-block: 30px;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  position: relative;
  position: relative;
  /* needed for ::before/::after holes */
  will-change: transform;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  contain: layout paint;
  /* isolate paints */
}

/* Moving square holes on the belt */
#belt::before,
#belt::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: var(--hole-size);
  background:
    repeating-linear-gradient(90deg,
      #fff 0 var(--hole-size),
      transparent var(--hole-size) calc(var(--hole-size) + var(--hole-gap)));
  pointer-events: none;
  z-index: 1;
  /* above photos */
}

#belt::before {
  top: 8px
}

#belt::after {
  bottom: 8px
}

.frame {
  flex: 0 0 auto;
  height: 100%;
}

.frame img {
  display: block;
  height: 100%;
  width: auto;
  object-fit: cover;
  border-radius: 10px;
}

html,
body {
  overscroll-behavior-y: none;
}

/* stops page rubber-band */

@supports (-webkit-touch-callout: none) {
  .nav {
    backdrop-filter: none;
    background: rgba(13, 15, 18, .9);
  }
}

/* === FAQ dropdown animation === */
/* 外觀樣式可保留 */
#faq .faq-item {
  border: 1px solid #ffffff18;
  border-radius: 12px;
  padding: .75rem 1rem;
  background: #0f1217;
}

#faq .faq-item+.faq-item {
  margin-top: 10px;
}

#faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  color: var(--text);
}

#faq summary::-webkit-details-marker {
  display: none;
}

/* 箭頭：用 .is-open 控制（非 [open]） */
#faq summary::after {
  content: "";
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  transition: transform .1s linear;
}

#faq .faq-item.is-open summary::after {
  transform: rotate(45deg);
}

/* ——重點：高度動畫（JS 會設定 height）—— */
#faq .answer {
  height: 0;
  overflow: hidden;
  transition: height .1s linear;
}

/* 原本：先等 is-open class 才淡入 */
#faq .answer__inner>* {
  margin: .6rem 0 0;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .1s linear, transform .1s linear;
}

/* 改成：展開時立即開始淡入 */
#faq .faq-item.is-opening .answer__inner>*,
#faq .faq-item.is-open .answer__inner>* {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive Nav ---------- */
/* hamburger button (hidden on desktop) */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0 0 0 .5rem;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--text);
  transform-origin: center;
  transition: transform .25s ease, opacity .2s ease, top .25s ease;
}

.nav-toggle span:nth-child(1) {
  top: 12px;
}

.nav-toggle span:nth-child(2) {
  top: 19px;
}

.nav-toggle span:nth-child(3) {
  top: 26px;
}

.nav.is-open .nav-toggle span:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

.nav.is-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.nav.is-open .nav-toggle span:nth-child(3) {
  top: 19px;
  transform: rotate(-45deg);
}

/* mobile panel */
@media (max-width: 900px) {
  .nav__row {
    gap: .5rem;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav .links {
    position: fixed;
    top: calc(var(--nav-h, 64px) + env(safe-area-inset-top));
    right: 0;
    width: min(92vw, 360px);
    height: calc(100svh - var(--nav-h, 64px) - env(safe-area-inset-top));
    display: flex;
    flex-direction: column;
    gap: .25rem;
    padding: 12px;
    background: #0f1217;
    border-left: 1px solid #ffffff1a;
    transform: translateX(100%);
    transition: transform .25s ease;
    z-index: 1001;
  }

  .nav .links a {
    padding: 12px 14px;
    border-radius: 10px;
    background: transparent;
  }

  .nav .links a:active {
    background: #ffffff12;
  }

  .nav.is-open .links {
    transform: translateX(0);
  }

  /* backdrop */
  .menu-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .35);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    z-index: 1000;
  }

  .nav.is-open+.menu-backdrop {
    display: block;
  }

  .menu-backdrop[hidden] {
    display: none;
  }

  /* lock page scroll when menu open */
  body.menu-open {
    overflow: hidden;
  }
}

/* desktop keeps your old inline menu */
@media (min-width: 901px) {
  .nav .links {
    display: flex;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
}

.brand-logo {
        height: 4rem;
  width: auto;
  display: block;
}

@media (max-width: 900px) {
  .brand-logo {
    height: 3rem; /* slightly smaller on mobile */
  }
}