/* =========================================================
   Graphic Design Museum — Portal
   スイス・スタイル共通クローム(全Roomと統一)
   ========================================================= */

:root {
  --unit: 8px;
  --baseline: 28px;
  --content: 1180px;
  --margin: 40px;

  --ink: #111111;
  --paper: #f4f2ec;
  --grey: #8a8780;
  --line: rgba(17, 17, 17, 0.14);
  --accent: #d5231a;
  --blue: #1c40a0;
  --yellow: #f4c20d;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  font-size: 18px;
  line-height: var(--baseline);
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

p { margin: 0 0 var(--baseline); }
em { font-style: normal; color: var(--accent); }
strong, b { font-weight: 700; }

.wrap {
  max-width: calc(var(--content) + var(--margin) * 2);
  margin-inline: auto;
  padding-inline: var(--margin);
}

/* =========================================================
   MASTHEAD
   ========================================================= */
.masthead { padding-block: calc(var(--baseline) * 3) calc(var(--baseline) * 2); border-bottom: 2px solid var(--ink); }
.masthead .wrap { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; }
.masthead__meta { grid-column: 1 / -1; display: flex; gap: var(--unit); margin-bottom: calc(var(--baseline) * 2); }
.tag { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--paper); background: var(--accent); padding: 4px 10px; border-radius: 2px; }
.tag--muted { background: transparent; color: var(--grey); border: 1px solid var(--line); }
.masthead__title { grid-column: 1 / 10; margin: 0; font-size: clamp(60px, 12vw, 156px); line-height: 0.84; font-weight: 900; letter-spacing: -0.03em; }
.masthead__sub { grid-column: 10 / -1; align-self: end; justify-self: end; margin: 0; font-size: 20px; font-weight: 700; color: var(--accent); writing-mode: vertical-rl; }
.masthead__lede { grid-column: 1 / 9; margin-top: calc(var(--baseline) * 2); font-size: 20px; line-height: var(--baseline); }
.masthead__guide { grid-column: 1 / -1; margin: var(--baseline) 0 0; font-size: 14px; font-weight: 700; letter-spacing: 0.06em; color: var(--grey); }

/* =========================================================
   ROOMS
   ========================================================= */
.rooms__head { padding-block: calc(var(--baseline) * 3) var(--baseline); }
.rooms__kicker { margin: 0 0 6px; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.rooms__title { margin: 0; font-size: clamp(32px, 5vw, 56px); font-weight: 900; letter-spacing: -0.02em; }

.room {
  display: block; text-decoration: none; color: inherit;
  border-top: 1px solid var(--line);
  transition: background 0.25s ease;
}
.room:first-of-type { border-top: 2px solid var(--ink); }
.room:last-of-type { border-bottom: 1px solid var(--line); }
.room:hover { background: var(--ink); color: var(--paper); }

.room__grid {
  display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px;
  padding-block: calc(var(--baseline) * 1.75); align-items: start;
}
.room__aside { grid-column: 1 / 3; display: flex; flex-direction: column; gap: 4px; }
.room__no { font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 0.04em; }
.room__era { font-family: "SF Mono", Menlo, monospace; font-size: 13px; color: var(--grey); }
.room:hover .room__era { color: #b8b5ad; }
.room__movement { font-size: 13px; font-weight: 500; margin-top: 4px; }

.room__main { grid-column: 3 / 9; }
.room__eyebrow { margin: 0; font-size: 14px; font-weight: 700; letter-spacing: 0.04em; color: var(--grey); text-transform: uppercase; }
.room:hover .room__eyebrow { color: #b8b5ad; }
.room__name { margin: 2px 0 var(--unit); font-size: clamp(30px, 4.4vw, 52px); line-height: 0.96; font-weight: 900; letter-spacing: -0.02em; }
.room__desc { margin: 0 0 var(--baseline); font-size: 17px; line-height: 1.7; max-width: 46ch; }
.room__points { margin: 0 0 calc(var(--baseline) * 1.2); padding: 0; list-style: none; }
.room__points li { position: relative; padding-left: 20px; font-size: 14px; line-height: 1.7; color: var(--grey); }
.room:hover .room__points li { color: #c9c6bf; }
.room__points li::before { content: ""; position: absolute; left: 0; top: 11px; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; }
.room__cta { display: inline-block; font-size: 16px; font-weight: 700; border-bottom: 2px solid currentColor; padding-bottom: 2px; }

.room__emblem { grid-column: 10 / -1; justify-self: end; align-self: center; width: 100%; max-width: 130px; color: var(--ink); }
.room:hover .room__emblem { color: var(--paper); }
.room__emblem svg { width: 100%; height: auto; display: block; }

/* =========================================================
   COMING SOON
   ========================================================= */
.section { padding-block: calc(var(--baseline) * 3); }
.soon { background: var(--ink); color: var(--paper); }
.soon__head { }
.rooms__kicker--light { color: var(--yellow); }
.soon__title { color: var(--paper); }
.soon__lede { margin-top: var(--baseline); font-size: 18px; line-height: 1.7; max-width: 52ch; color: #c9c6bf; }
.soon__list { margin-top: var(--baseline); display: flex; flex-wrap: wrap; gap: 12px; }
.soon__chip {
  font-size: 15px; font-weight: 500; color: var(--paper);
  border: 1px solid rgba(244,242,236,0.3); border-radius: 2px;
  padding: 10px 16px;
}

/* =========================================================
   COLOPHON
   ========================================================= */
.colophon { background: var(--ink); color: var(--paper); padding-block: calc(var(--baseline) * 2); border-top: 1px solid rgba(244,242,236,0.15); }
.colophon .wrap { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; }
.colophon__brand { grid-column: 1 / 5; margin: 0; font-size: 22px; font-weight: 900; }
.colophon__txt { grid-column: 6 / 10; margin: 0; font-size: 14px; line-height: 1.6; color: #c9c6bf; }
.colophon__spec { grid-column: 10 / -1; margin: 0; font-size: 12px; color: var(--grey); text-align: right; font-weight: 500; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
  :root { --margin: 24px; }
  body { font-size: 16px; }
  .masthead__title { grid-column: 1 / -1; }
  .masthead__sub { grid-column: 1 / -1; writing-mode: horizontal-tb; justify-self: start; margin-top: var(--unit); }
  .masthead__lede { grid-column: 1 / -1; }
  .room__aside { grid-column: 1 / -1; flex-direction: row; gap: 14px; align-items: baseline; margin-bottom: var(--baseline); }
  .room__main { grid-column: 1 / -1; }
  .room__emblem { grid-column: 1 / -1; justify-self: start; margin-top: var(--baseline); max-width: 90px; }
  .colophon__brand, .colophon__txt, .colophon__spec { grid-column: 1 / -1; text-align: left; margin-bottom: var(--unit); }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } html { scroll-behavior: auto; } }