/* 隱拓製作所 YINTO Studio — 墨與朱 */
:root {
  --paper: #f3f1ea;
  --paper-deep: #e8e4d9;
  --ink: #2b3236;
  --ink-soft: #5b6266;
  --line: #cfcabd;
  --shu: #c4553a;
  --room: #252b2e;       /* 試映室 */
  --room-text: #e9e6dd;
  --room-soft: #a4a9a8;

  --serif: "Noto Serif", Georgia, "Noto Serif TC", "Noto Serif CJK TC", "Songti TC", "PMingLiU", serif;
  --sans: "Noto Sans", "Helvetica Neue", Arial, "Noto Sans TC", "Noto Sans CJK TC", "PingFang TC", "Microsoft JhengHei", sans-serif;

  --gutter: clamp(20px, 5vw, 72px);
  --rail: 132px;
  --max: 1240px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .04em;
  font-feature-settings: "palt" 0;
}
html[lang="en"] body { letter-spacing: .005em; line-height: 1.75; }

img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: .3em; text-decoration-thickness: 1px; transition: text-decoration-color .3s var(--ease), color .3s var(--ease); }
a:hover { text-decoration-color: var(--shu); }
:focus-visible { outline: 2px solid var(--shu); outline-offset: 3px; }
::selection { background: var(--shu); color: var(--paper); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; margin: 0; letter-spacing: .08em; line-height: 1.5; }
html[lang="en"] :is(h1, h2, h3, h4) { letter-spacing: .01em; line-height: 1.3; }
p { margin: 0 0 1.2em; }
ul { margin: 0; padding: 0; list-style: none; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ── Header ───────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 18px var(--gutter);
  background: color-mix(in srgb, var(--paper) 96%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header .brand img { height: 48px; width: auto; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 36px); font-size: 14px; }
.site-nav a { text-decoration: none; padding: 6px 0; position: relative; }
.site-nav a[aria-current="page"]::after { content: ""; position: absolute; left: 50%; bottom: -2px; width: 5px; height: 5px; margin-left: -2.5px; border-radius: 50%; background: var(--shu); }
.site-nav .lang { padding-left: clamp(18px, 2.4vw, 36px); border-left: 1px solid var(--line); color: var(--ink-soft); }
.menu-btn { display: none; background: none; border: 0; font: inherit; color: inherit; padding: 8px 0; cursor: pointer; letter-spacing: .1em; font-size: 14px; }

/* Home: header floats over the film */
.page-home .site-header { position: fixed; left: 0; right: 0; background: transparent; color: var(--paper); }
.page-home .site-header .brand .on-light { display: none; }
.page-home .site-header .brand .on-dark { display: block; }
.page-home .site-header .lang { border-left-color: rgba(243, 241, 234, .35); color: rgba(243, 241, 234, .8); }
.page-home .site-header.is-scrolled { background: color-mix(in srgb, var(--paper) 94%, transparent); color: var(--ink); }
.page-home .site-header.is-scrolled .brand .on-light { display: block; }
.page-home .site-header.is-scrolled .brand .on-dark { display: none; }
.page-home .site-header.is-scrolled .lang { border-left-color: var(--line); color: var(--ink-soft); }
.brand .on-dark { display: none; }

@media (max-width: 860px) {
  .menu-btn { display: block; }
  .site-nav {
    position: fixed; inset: 0; z-index: 60;
    flex-direction: column; justify-content: center; gap: 22px;
    background: var(--paper); color: var(--ink);
    font-family: var(--serif); font-size: 22px;
    opacity: 0; visibility: hidden; transition: opacity .35s var(--ease), visibility 0s .35s;
  }
  .site-nav.is-open { opacity: 1; visibility: visible; transition: opacity .35s var(--ease); }
  .site-nav .lang { border-left: 0; padding-left: 0; font-size: 15px; font-family: var(--sans); margin-top: 18px; }
  .site-nav .close-btn { position: absolute; top: 22px; right: var(--gutter); font-family: var(--sans); font-size: 14px; }
  .page-home .site-nav .lang { color: var(--ink-soft); }
}
@media (min-width: 861px) { .site-nav .close-btn { display: none; } }

/* ── Hero film ───────────────────────────────────── */
.hero { position: relative; height: 100svh; min-height: 560px; overflow: hidden; background: var(--ink); color: var(--paper); }
.hero video, .hero .poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(43,50,54,.45) 0%, rgba(43,50,54,0) 22%, rgba(43,50,54,0) 55%, rgba(43,50,54,.55) 100%); pointer-events: none; }
.hero-copy {
  position: absolute; z-index: 2;
  right: var(--gutter); top: 50%; transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(26px, 3vw, 42px); letter-spacing: .32em; line-height: 2;
  text-shadow: 0 1px 24px rgba(0,0,0,.25);
  margin: 0;
}
.hero-copy span { display: block; }
.hero-copy span + span { padding-top: 3.2em; }
html[lang="en"] .hero-copy { writing-mode: horizontal-tb; transform: none; top: auto; bottom: 96px; right: auto; left: var(--gutter); letter-spacing: .01em; line-height: 1.25; font-size: clamp(28px, 4vw, 54px); max-width: 16em; }
html[lang="en"] .hero-copy span + span { padding-top: 0; }
.hero-foot { position: absolute; z-index: 2; left: var(--gutter); right: var(--gutter); bottom: 32px; display: flex; justify-content: space-between; align-items: end; font-size: 13px; color: rgba(243,241,234,.85); }
html[lang="zh-Hant-TW"] .hero-foot .place { letter-spacing: .2em; }
.video-toggle { background: none; border: 1px solid rgba(243,241,234,.5); color: inherit; border-radius: 50%; width: 40px; height: 40px; display: grid; place-items: center; cursor: pointer; }
.video-toggle svg { width: 12px; height: 12px; fill: currentColor; }
.video-toggle .i-play { display: none; }
.video-toggle[aria-pressed="true"] .i-play { display: block; }
.video-toggle[aria-pressed="true"] .i-pause { display: none; }

/* the one orchestrated moment */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy span { opacity: 0; filter: blur(6px); animation: ink-in 1.6s var(--ease) forwards; }
  .hero-copy span:nth-child(2) { animation-delay: .6s; }   /* 第一行：隱身幕後 / YIN */
  .hero-copy span:nth-child(3) { animation-delay: 2.2s; }  /* 第二行：拓於銀幕 / TO */
  @keyframes ink-in { to { opacity: 1; filter: blur(0); } }
}

/* ── Sections with the vertical title rail ─────────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.sect { padding: clamp(72px, 10vw, 144px) 0; }
.sect + .sect { padding-top: 0; }
.sect.tone-deep { background: var(--paper-deep); }
.sect.tone-deep + .sect, .sect + .sect.tone-deep, .sect.room + .sect, .sect + .sect.room { padding-top: clamp(72px, 10vw, 144px); }
.railed { display: grid; grid-template-columns: var(--rail) minmax(0, 1fr); gap: 0 clamp(24px, 4vw, 56px); }
.rail { position: relative; }
.rail h2 {
  writing-mode: vertical-rl;
  font-size: 30px; letter-spacing: .4em; font-weight: 500;
  position: sticky; top: 120px;
  margin-left: auto; margin-right: 24px;
}
.rail h2 small { display: block; font-family: var(--sans); font-weight: 300; font-size: 12px; letter-spacing: .18em; color: var(--ink-soft); padding-top: 1.6em; }
html[lang="en"] .rail h2 { font-size: 26px; letter-spacing: .12em; }
html[lang="en"] .rail h2 small { letter-spacing: .2em; }
.room .rail h2 small { color: var(--room-soft); }
@media (max-width: 860px) {
  .railed { grid-template-columns: 1fr; }
  .rail h2, html[lang="en"] .rail h2 { writing-mode: horizontal-tb; position: static; margin: 0 0 40px; font-size: 26px; letter-spacing: .2em; display: flex; align-items: baseline; gap: 16px; }
  html[lang="en"] .rail h2 { letter-spacing: .02em; }
  .rail h2 small { padding: 0; }
}

.lede { font-family: var(--serif); font-weight: 400; font-size: clamp(19px, 1.9vw, 24px); line-height: 2.1; max-width: 32em; letter-spacing: .08em; }
html[lang="en"] .lede { line-height: 1.7; letter-spacing: 0; max-width: 30em; }
.muted { color: var(--ink-soft); }
.measure { max-width: 34em; }
html[lang="en"] .measure { max-width: 38em; }

.text-link { display: inline-block; margin-top: 8px; font-size: 14px; text-decoration: underline; text-decoration-color: var(--shu); }

/* ── Screening room (dark) ────────────────────────── */
.room { background: var(--room); color: var(--room-text); }
.room .muted { color: var(--room-soft); }
.room a { text-decoration-color: rgba(233,230,221,.3); }
.room a:hover { text-decoration-color: var(--shu); }

.feature { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.feature figure { margin: 0; }
.feature h3 { font-size: clamp(40px, 5.5vw, 76px); letter-spacing: .2em; font-weight: 500; line-height: 1.2; }
.feature .sub { font-family: var(--serif); letter-spacing: .24em; font-size: 13px; color: var(--room-soft); margin: 14px 0 36px; }
html[lang="en"] .feature h3 { font-size: clamp(32px, 4vw, 54px); letter-spacing: 0; }
html[lang="en"] .feature .sub { letter-spacing: .3em; }
.honor { display: flex; gap: 14px; align-items: flex-start; margin: 0 0 10px; font-family: var(--serif); font-size: 15px; }
.honor::before { content: ""; flex: none; width: 7px; height: 7px; margin-top: .75em; border-radius: 50%; background: var(--shu); }
.feature .meta { margin-top: 36px; padding-top: 24px; border-top: 1px solid rgba(233,230,221,.16); font-size: 14px; }
@media (max-width: 860px) { .feature { grid-template-columns: 1fr; } .feature figure { max-width: 420px; } }

/* ── Works ──────────────────────────────────────── */
.works-pair { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: clamp(24px, 4vw, 56px); align-items: end; }
.work-card { text-decoration: none; display: block; }
.work-card figure { margin: 0 0 18px; overflow: hidden; background: var(--paper-deep); }
.work-card img { width: 100%; transition: transform 1.2s var(--ease); }
.work-card:hover img { transform: scale(1.025); }
.work-card h3 { font-size: 21px; letter-spacing: .14em; }
html[lang="en"] .work-card h3 { letter-spacing: 0; }
.work-card p { font-size: 14px; margin: 4px 0 0; }
@media (max-width: 720px) { .works-pair { grid-template-columns: 1fr; } }

.index-list { border-top: 1px solid var(--line); }
.index-list li { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 3fr); gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.index-list .t { font-family: var(--serif); font-size: 18px; letter-spacing: .08em; }
html[lang="en"] .index-list .t { letter-spacing: .02em; }
.index-list .k, .index-list .r { font-size: 14px; color: var(--ink-soft); }
.index-list .r { text-align: right; }
.index-list a { text-decoration-color: var(--shu); }
@media (max-width: 640px) { .index-list li { grid-template-columns: 1fr auto; } .index-list .k { grid-column: 1; grid-row: 2; } .index-list .r { grid-row: 1 / span 2; grid-column: 2; align-self: center; } }

.group + .group { margin-top: clamp(64px, 8vw, 112px); }
.group h3 { font-size: 15px; font-family: var(--sans); font-weight: 400; letter-spacing: .2em; color: var(--ink-soft); margin-bottom: 20px; }
html[lang="en"] .group h3 { letter-spacing: .04em; }

.work-detail-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 24px; margin-bottom: clamp(40px, 6vw, 72px); }
.work-detail-head h1 { font-size: clamp(36px, 6vw, 80px); letter-spacing: .2em; line-height: 1.2; }
html[lang="en"] .work-detail-head h1 { letter-spacing: 0; font-size: clamp(32px, 5vw, 64px); }
.work-detail-head .sub { font-family: var(--serif); letter-spacing: .24em; font-size: 13px; color: var(--room-soft); margin-top: 16px; }
.detail-figure { margin: 0 0 clamp(48px, 7vw, 96px); }
.detail-figure.tall { max-width: 640px; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 6vw, 96px); }
.detail-grid dl { margin: 0; font-size: 14px; }
.detail-grid dt { color: var(--room-soft); margin-top: 20px; }
.detail-grid dt:first-child { margin-top: 0; }
.detail-grid dd { margin: 4px 0 0; white-space: pre-line; font-family: var(--serif); font-size: 15px; }
.detail-grid h2 { font-size: 13px; font-family: var(--sans); font-weight: 400; letter-spacing: .2em; color: var(--room-soft); margin: 40px 0 14px; }
.detail-grid h2:first-child { margin-top: 0; }
.back { display: inline-block; margin-top: clamp(56px, 8vw, 112px); font-size: 14px; }
@media (max-width: 860px) { .detail-grid, .work-detail-head { grid-template-columns: 1fr; } }

/* ── Services ───────────────────────────────────── */
.svc-list li { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 16px clamp(24px, 5vw, 72px); padding: clamp(28px, 4vw, 44px) 0; border-top: 1px solid var(--line); }
.svc-list li:last-child { border-bottom: 1px solid var(--line); }
.svc-list h3 { font-size: 22px; letter-spacing: .18em; }
html[lang="en"] .svc-list h3 { letter-spacing: 0; }
.svc-list .short { font-family: var(--serif); font-size: 15px; color: var(--ink-soft); margin: 10px 0 0; letter-spacing: .06em; }
html[lang="en"] .svc-list .short { letter-spacing: 0; }
.svc-list .body p:last-child { margin-bottom: 0; }
.svc-compact li { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); align-items: baseline; padding: 22px 0; }
.svc-compact h3 { font-size: 19px; }
.svc-compact .short { margin: 0; }
@media (max-width: 720px) { .svc-list li { grid-template-columns: 1fr; } }

/* ── Education ──────────────────────────────────── */
.edu-block { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.edu-block + .edu-block { margin-top: clamp(72px, 9vw, 128px); }
.edu-block:nth-child(even) figure { order: 2; }
.edu-block figure { margin: 0; }
.edu-block h3 { font-size: 24px; letter-spacing: .14em; margin-bottom: 20px; }
html[lang="en"] .edu-block h3 { letter-spacing: 0; }
.taglist { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--ink-soft); }
.plain-list li { padding: 6px 0; font-size: 15px; }
.list-label { font-size: 13px; color: var(--ink-soft); letter-spacing: .14em; margin: 24px 0 8px; }
html[lang="en"] .list-label { letter-spacing: .02em; }
@media (max-width: 760px) { .edu-block { grid-template-columns: 1fr; } .edu-block:nth-child(even) figure { order: 0; } }

/* ── Recognition list (home) ─────────────────────── */
.honors-list li { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 16px; padding: 18px 0; border-top: 1px solid var(--line); align-items: baseline; }
.honors-list li:last-child { border-bottom: 1px solid var(--line); }
.honors-list .y { font-family: var(--serif); color: var(--ink-soft); font-size: 14px; }
.honors-list .t { font-family: var(--serif); font-size: 17px; letter-spacing: .06em; }
html[lang="en"] .honors-list .t { letter-spacing: 0; }

.line-list li { padding: 16px 0; border-top: 1px solid var(--line); font-family: var(--serif); font-size: 17px; letter-spacing: .06em; }
.line-list li:last-child { border-bottom: 1px solid var(--line); }
html[lang="en"] .line-list li { letter-spacing: 0; }

/* ── Team ───────────────────────────────────────── */
.team { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(32px, 6vw, 96px); }
.member figure { margin: 0 0 24px; background: var(--paper-deep); }
.member h3 { font-size: 26px; letter-spacing: .2em; display: flex; align-items: baseline; gap: 14px; }
html[lang="en"] .member h3 { letter-spacing: 0; }
.member h3 small { font-family: var(--sans); font-weight: 300; font-size: 14px; letter-spacing: .1em; color: var(--ink-soft); }
.member .role { font-size: 13px; color: var(--ink-soft); margin: 6px 0 16px; letter-spacing: .1em; }
html[lang="en"] .member .role { letter-spacing: .02em; }
.team.compact .member figure { max-width: 360px; }
@media (max-width: 640px) { .team { grid-template-columns: 1fr; } }

/* ── About ──────────────────────────────────────── */
.statement p { font-family: var(--serif); font-size: clamp(18px, 1.8vw, 22px); line-height: 2.1; letter-spacing: .1em; max-width: 30em; }
html[lang="en"] .statement p { line-height: 1.7; letter-spacing: 0; }
.intro-text { margin-top: clamp(40px, 5vw, 64px); padding-top: clamp(32px, 4vw, 48px); border-top: 1px solid var(--line); max-width: 36em; }
.timeline li { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 16px; padding: 24px 0; border-top: 1px solid var(--line); }
.timeline li:last-child { border-bottom: 1px solid var(--line); }
.timeline .y { font-family: var(--serif); font-size: 22px; letter-spacing: .06em; }
.timeline li:last-child .y { color: var(--shu); }
.timeline p { margin: 0; max-width: 36em; }
.partners { display: flex; flex-wrap: wrap; gap: 10px 36px; margin-top: 24px; font-family: var(--serif); font-size: 17px; }
.social-list li { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); max-width: 520px; }
.social-list li:last-child { border-bottom: 1px solid var(--line); }
.social-list .n { font-family: var(--serif); font-size: 18px; }

/* ── News ───────────────────────────────────────── */
.news-list > li { display: grid; grid-template-columns: 96px minmax(0, 1fr) 200px; gap: clamp(16px, 3vw, 40px); padding: clamp(28px, 4vw, 40px) 0; border-top: 1px solid var(--line); align-items: start; }
.news-list > li:last-child { border-bottom: 1px solid var(--line); }
.news-list .d { font-family: var(--serif); color: var(--ink-soft); font-size: 14px; padding-top: 4px; }
.news-list h3 { font-size: 19px; letter-spacing: .08em; margin-bottom: 10px; }
html[lang="en"] .news-list h3 { letter-spacing: 0; }
.news-list p { font-size: 15px; margin-bottom: 8px; }
.news-list figure { margin: 0; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-deep); }
.news-list figure img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 760px) { .news-list > li { grid-template-columns: 1fr; } .news-list figure { max-width: 320px; order: -1; } }

/* ── Contact ────────────────────────────────────── */
.mail { font-family: var(--serif); font-size: clamp(28px, 4.6vw, 60px); letter-spacing: .02em; line-height: 1.2; text-decoration: none; display: inline-block; border-bottom: 1px solid var(--shu); padding-bottom: 6px; word-break: break-all; }
.mail:hover { color: var(--shu); }
.cta-band { text-align: left; }

/* ── Page head ──────────────────────────────────── */
.page-head { padding: clamp(72px, 10vw, 140px) 0 clamp(48px, 7vw, 96px); }
.page-head h1 { font-size: clamp(34px, 5vw, 64px); letter-spacing: .3em; }
html[lang="en"] .page-head h1 { letter-spacing: 0; }
.page-head .lede { margin-top: 28px; }

main > .page-head + .sect:not(.room):not(.tone-deep) { padding-top: 0; }

/* ── Footer ─────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 40px; font-size: 13px; color: var(--ink-soft); }
.foot-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 40px 72px; align-items: start; }
.foot-grid img.mark { width: 120px; height: auto; }
.foot-grid nav ul { display: grid; gap: 6px; }
.foot-grid a { text-decoration: none; }
.foot-grid a:hover { color: var(--ink); }
.hanko { display: inline-grid; place-items: center; width: 44px; height: 44px; background: var(--shu); color: var(--paper); font-family: var(--serif); font-size: 13px; line-height: 1.1; writing-mode: vertical-rl; letter-spacing: .1em; border-radius: 3px; margin-top: 28px; }
.foot-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 56px; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-grid .brandcol { grid-column: 1 / -1; } }

/* utilities */
.mt-l { margin-top: clamp(48px, 6vw, 80px); }
.mt-m { margin-top: 32px; }
.ratio-img { width: 100%; }