/* ============================================================================
   QVi base design — the rc25-003 identity + type system, as the site's default.
   Loaded AFTER styles.css so it overrides the base design tokens. Skins
   (:root[data-skin="…"]) keep higher specificity and still win when active.
   Commerce LOGIC is untouched — this is look only.
   Decisions: docs/superpowers/specs/2026-09-05-type-system-voices-design.md
   ========================================================================== */

/* ---- self-hosted faces ---------------------------------------------------- */
@font-face{font-family:'Zen Kaku Gothic New';src:url('../fonts/zenkakugothicnew-400-normal-latin.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Zen Kaku Gothic New';src:url('../fonts/zenkakugothicnew-400-normal-latin-ext.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Noto Sans JP';src:url('../fonts/notosansjp-400-normal-latin.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Noto Sans JP';src:url('../fonts/notosansjp-400-normal-latin-ext.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Spectral';src:url('../fonts/spectral-latin-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Spectral';src:url('../fonts/spectral-latin-ext-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Spectral';src:url('../fonts/spectral-latin-400-italic.woff2') format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'EB Garamond';src:url('../fonts/eb-garamond-latin-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'EB Garamond';src:url('../fonts/eb-garamond-latin-ext-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'EB Garamond';src:url('../fonts/eb-garamond-latin-400-italic.woff2') format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Zen Old Mincho';src:url('../fonts/zen-old-mincho-latin-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Zen Old Mincho';src:url('../fonts/zen-old-mincho-latin-ext-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;unicode-range:U+0100-024F,U+1E00-1EFF,U+2C60-2C7F,U+A720-A7FF}

/* ---- design tokens (override the base) ------------------------------------ */
:root {
  /* dark, ink-on-ground */
  --bg: #0e0f11;
  --surface: #141518;
  --surface-2: #17181c;
  --ink: #e7e7e7;
  --ink-soft: #a8a6a0;
  --ink-faint: #7c7a74;
  --line: rgba(231, 231, 231, .14);
  --line-strong: rgba(231, 231, 231, .26);

  /* the single accent — the identity green */
  --accent: #0F9C86;
  --accent-deep: #0c7d6b;
  --accent-soft: #123c37;

  /* type roles (rc25-003) */
  --serif: 'Spectral', Georgia, serif;          /* reading / small text */
  --sans:  'Spectral', Georgia, serif;          /* UI defaults to the text voice */
  --font-display: 'Noto Sans JP', system-ui, sans-serif;   /* titles / headings */
  --font-logo: 'Zen Kaku Gothic New', system-ui, sans-serif;
  --font-ja: 'Zen Old Mincho', serif;           /* Japanese */
  --font-gloss: 'EB Garamond', serif;           /* mujō / literary gloss */

  --radius: 2px;
}

/* ---- base surfaces + text ------------------------------------------------- */
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent-soft); color: var(--ink); }

/* headings in the display face (Noto Sans JP), one weight, calm */
.display, h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: .005em;
}

/* eyebrows / small labels — Spectral, tracked, quiet */
.eyebrow, .fi {
  font-family: var(--serif);
  color: var(--ink-faint);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.lead, p, li, figcaption { font-family: var(--serif); }
a { color: var(--ink); }
a:hover { color: #fff; }

/* ---- buttons ------------------------------------------------------------- */
.btn { font-family: var(--serif); font-weight: 400; letter-spacing: .06em; border-radius: var(--radius); }
.btn--accent { background: var(--accent); border-color: var(--accent); color: #061312; }
.btn--accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn--ghost { color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--accent); color: #fff; }
.link-arrow { color: var(--ink-soft); }
.link-arrow:hover { color: var(--accent); }

/* ---- header / nav -------------------------------------------------------- */
.site-header { background: color-mix(in srgb, var(--bg) 86%, transparent); border-bottom: 1px solid var(--line); }
.nav-links a { font-family: var(--serif); letter-spacing: .1em; color: var(--ink-soft); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.cart-btn { font-family: var(--serif); letter-spacing: .12em; color: var(--ink-soft); }
.cart-btn:hover { color: var(--ink); }

/* ---- QVi identity: shape mark + wordmark (matrix per page) ---------------- */
/* The nav brand carries the identity. Home = shape mark; content pages =
   wordmark; shop/commerce = shape + wordmark lockup. Markup is set per page. */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  text-decoration: none;
}
.brand .shape-mark { display: block; width: 26px; height: 26px; color: #e7e7e7; flex: none; }
.brand .shape-mark svg { display: block; width: 100%; height: 100%; }
.brand .wordmark {
  display: inline-flex;
  align-items: baseline;
  line-height: .76;
  color: currentColor;
  white-space: nowrap;
  font-family: var(--font-logo);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: -.06em;
}
.brand .wordmark .i { position: relative; display: inline-block; margin-left: .01em; letter-spacing: 0; }
.brand .wordmark .dot {
  position: absolute; left: calc(50% + .08em); top: -.025em;
  width: .09em; height: .09em; margin-left: -.045em; border-radius: 50%;
  background: var(--accent);
}

/* ---- footer -------------------------------------------------------------- */
.site-footer { background: var(--surface); border-top: 1px solid var(--line); color: var(--ink-faint); }
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--ink); }

/* ==========================================================================
   HOME — the rc25-003 experience: ceremonial opening, scattered photo
   sequence with two-step open (Open Photograph → Open Detail), side
   recognition, the enlarged viewer, and the mujō leaving.
   ========================================================================== */
:root { --ground: #171518; --quiet: #aaa6a8; --veil: rgba(19,25,36,.72); --font-text: 'Spectral', Georgia, serif; }
body[data-page="home"] { background: var(--ground); }
/* the home is ceremonial and nav-less — the mark alone owns the first screen,
   then the photographs, then the leaving. No persistent menu or footer. */
body[data-page="home"] .site-header,
body[data-page="home"] .site-footer { display: none; }

.opening { min-height: 100svh; display: grid; place-items: center; }
.opening .shape-mark { display: block; width: clamp(52px,7vw,86px); height: clamp(52px,7vw,86px); color: #e7e7e7; }
.opening .shape-mark svg { display: block; width: 100%; height: 100%; }

.home-sequence {
  width: min(1240px, 92vw); margin: 0 auto; padding: 4vh 0 18vh; list-style: none;
  display: grid; grid-template-columns: repeat(12, minmax(0,1fr)); column-gap: clamp(16px,2.4vw,36px); align-items: start;
}
.home-sequence > li { grid-column: var(--start) / span var(--span); margin-top: var(--pause); }
.encounter { width: 100%; position: relative; }
.encounter summary { position: relative; display: grid; overflow: hidden; cursor: pointer; list-style: none; isolation: isolate; }
.encounter summary::-webkit-details-marker { display: none; }
.encounter summary::before, .encounter summary::after {
  position: absolute; z-index: 2; content: ""; pointer-events: none;
  transition-property: opacity, transform; transition-duration: 1800ms, 2400ms;
  transition-timing-function: cubic-bezier(.16,.72,.18,1), cubic-bezier(.16,.72,.18,1);
}
.encounter summary::before { inset: -1px 50% -1px -1px; background: linear-gradient(105deg,rgba(10,13,18,.87),var(--veil) 68%,rgba(25,32,44,.45)); border-right: 1px solid rgba(238,234,228,.18); transition-delay: 0ms,0ms; }
.encounter summary::after  { inset: -1px -1px -1px 50%; background: linear-gradient(110deg,rgba(28,36,48,.38),rgba(10,13,18,.72)); border-left: 1px solid rgba(238,234,228,.08); transition-delay: 70ms,90ms; }
.encounter[open] summary::before { opacity: 0; transform: translateX(-102%); }
.encounter[open] summary::after  { opacity: 0; transform: translateX(102%); }
.encounter img { z-index: 0; width: 100%; max-height: 68svh; object-fit: contain; filter: saturate(.55) brightness(.62); transition: filter 2200ms cubic-bezier(.16,.72,.18,1); }
.encounter[open] img { filter: none; }
.action { position: absolute; z-index: 4; top: 50%; right: clamp(14px,3vw,36px); padding: .7rem 0; border-bottom: 1px solid currentColor; color: var(--ink); font-family: var(--font-text); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; transform: translateY(-50%); transition: opacity 800ms cubic-bezier(.16,.72,.18,1); }
.encounter[open] .action { opacity: 0; }
.recognition {
  position: absolute; z-index: 4; top: 50%; right: clamp(14px,3vw,36px); transform: translateY(-50%);
  max-width: min(48%,15rem); display: flex; flex-direction: column; align-items: flex-end; text-align: right;
  gap: .85rem; padding: .85rem 1rem; background: rgba(8,11,15,.52); color: var(--ink); font-size: 15px; letter-spacing: .08em;
}
.encounter:not([open]) .recognition { display: none; }
.recognition .title { font-family: var(--font-display); }
.recognition-place { display: inline-block; font-family: var(--font-display); font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--quiet); }
.open-detail { border: 0; border-bottom: 1px solid currentColor; background: transparent; color: var(--ink); font-family: var(--font-text); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; padding: 0 0 .2rem; cursor: pointer; }

/* enlarged viewer */
.viewer[hidden], .return[hidden] { display: none; }
.viewer { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 6vh 6vw; }
.viewer-ground { position: absolute; inset: 0; border: 0; background: rgba(8,9,11,.94); cursor: pointer; }
.viewer-frame { position: relative; z-index: 1; margin: 0; display: grid; justify-items: center; gap: 1.2rem; }
.viewer-frame img { max-width: 86vw; max-height: 78vh; width: auto; object-fit: contain; }
.viewer-frame figcaption { display: flex; flex-wrap: wrap; justify-content: center; gap: .4rem 1.5rem; color: var(--quiet); font-size: 13px; letter-spacing: .1em; }
.viewer-title { color: var(--ink); flex-basis: 100%; text-align: center; font-size: 15px; font-family: var(--font-display); }
.viewer-close { position: fixed; z-index: 2; top: 28px; right: 32px; padding: .3rem 0; border: 0; border-bottom: 1px solid currentColor; background: transparent; color: var(--ink); font-size: 13px; letter-spacing: .16em; cursor: pointer; }

/* mujō leaving */
.return { min-height: 100svh; padding: 8vh 8vw; display: grid; place-content: center; justify-items: center; text-align: center; opacity: 0; transform: translateY(18px); transition: opacity 2400ms cubic-bezier(.16,.72,.18,1), transform 2400ms cubic-bezier(.16,.72,.18,1); }
.return.is-visible { opacity: 1; transform: translateY(0); }
.return.is-leaving { opacity: 0; transform: translateY(-14px); transition-duration: 1000ms; }
.return-ja, .return-en { max-width: 38rem; margin: 0; font-size: 15px; line-height: 2; font-weight: 400; }
.return-ja { font-family: var(--font-ja); letter-spacing: .12em; }
.return-en { margin-top: 1.4em; font-family: var(--font-gloss); }
.return-source { margin-top: 2.2em; font-family: var(--font-ja); font-size: 12px; letter-spacing: .3em; color: var(--quiet); }
.return-guide { margin-top: 4.5em; }
.return-gallery { color: var(--quiet); font-size: 14px; letter-spacing: .14em; text-decoration: none; border-bottom: 1px solid currentColor; }
body.is-returned .opening, body.is-returned .home-sequence { display: none; }

/* The slow ceremonial timing IS the theme (impermanence — the slow arrival and
   departure). The site's global reduced-motion rule kills all transitions, which
   flattens it to instant; restore the home's own gentle timing here so it matches
   the prototype. Opacity/filter fades only — no large motion is introduced. */
@media (prefers-reduced-motion: reduce) {
  .return { transition: opacity 2400ms cubic-bezier(.16,.72,.18,1), transform 2400ms cubic-bezier(.16,.72,.18,1) !important; }
  .return.is-leaving { transition-duration: 1000ms !important; }
  .encounter img { transition: filter 2200ms cubic-bezier(.16,.72,.18,1) !important; }
  .encounter summary::before { transition: opacity 1800ms cubic-bezier(.16,.72,.18,1), transform 2400ms cubic-bezier(.16,.72,.18,1) !important; }
  .encounter summary::after  { transition: opacity 1800ms cubic-bezier(.16,.72,.18,1), transform 2400ms cubic-bezier(.16,.72,.18,1) !important; }
  .action { transition: opacity 800ms cubic-bezier(.16,.72,.18,1) !important; }
}

/* ==========================================================================
   SHOP — real commerce (app.js cart/checkout) dressed in the rc25 store look.
   Typography only; the functional card/cart layout from styles.css is kept.
   ========================================================================== */
.card.search-hidden { display: none !important; }
.shop-search {
  display: block; width: 100%; max-width: 360px; margin: 0 0 clamp(20px, 3vw, 32px);
  padding: .7rem 0; background: transparent; border: 0; border-bottom: 1px solid var(--line-strong);
  color: var(--ink); font-family: var(--serif); font-size: 15px; letter-spacing: .04em;
}
.shop-search::placeholder { color: var(--ink-faint); }
.shop-search:focus { outline: none; border-bottom-color: var(--accent); }
.shop-search-empty { color: var(--ink-faint); font-family: var(--serif); font-size: 14px; margin-top: 1rem; }

.card-title { font-family: var(--font-display); font-weight: 400; letter-spacing: .06em; color: var(--ink); }
.card-meta  { font-family: var(--font-display); font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); }
.card-price { font-family: var(--serif); letter-spacing: .14em; color: var(--ink-faint); }
.card .badge { font-family: var(--serif); letter-spacing: .2em; text-transform: uppercase; }
.card:hover .card-title { color: #fff; }

/* ==========================================================================
   Commerce chrome — cart drawer, order-complete, recovery: rc25 treatment.
   ========================================================================== */
/* the dev skin-rating widget is not part of the live site */
.skin-switch { display: none !important; }

/* cart drawer */
.drawer { background: var(--surface); color: var(--ink); border-left: 1px solid var(--line); }
.drawer-head h3 { font-family: var(--font-display); font-weight: 400; letter-spacing: .04em; }
.drawer-items, .checkout-note { font-family: var(--serif); color: var(--ink-soft); }
.cart-total { font-family: var(--serif); color: var(--ink); }
.cart-total strong { font-family: var(--font-display); color: var(--ink); }
.drawer-backdrop { background: rgba(8, 9, 11, .72); }
.modal { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.modal h2, .modal h3 { font-family: var(--font-display); font-weight: 400; }

/* order-complete + recovery — calm confirmation */
#order-status, #order-recovery { color: var(--ink); }
#order-status h1, #order-status h2, #order-recovery h1, #order-recovery h2 {
  font-family: var(--font-display); font-weight: 400; letter-spacing: .01em;
}
#order-status p, #order-recovery p, #order-status li, #order-recovery li { font-family: var(--serif); }
#order-status .eyebrow, #order-recovery .eyebrow { font-family: var(--serif); }

/* ==========================================================================
   Cohesion: the exact rc25 sticky nav (as on Home/Gallery/Wall) on every page,
   replacing the old .site-header. 間 — generous interval, tracked-quiet links.
   ========================================================================== */
.site-nav {
  position: sticky; z-index: 20; top: 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: clamp(1.2rem, 3vw, 3rem); padding: 1.2rem 4vw;
  border-bottom: 1px solid rgba(231, 231, 231, .12);
  background: rgba(23, 21, 24, .9); backdrop-filter: blur(12px);
}
.site-nav-links { display: flex; align-items: center; gap: clamp(1.2rem, 3vw, 3rem); }
.site-nav-links a, .site-nav-links .cart-link {
  color: var(--quiet); font-family: var(--font-text); font-size: 11px;
  letter-spacing: .18em; text-transform: uppercase; text-decoration: none;
  background: none; border: 0; padding: 0; cursor: pointer;
}
.site-nav-links a:hover, .site-nav-links .cart-link:hover { color: var(--ink); }
.site-nav-links a[aria-current="page"] { color: var(--ink); border-bottom: 1px solid var(--ink); }
.site-nav .cart-link .cart-count { opacity: .7; }
.site-nav .identity { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); }
.site-nav .identity .shape-mark { display: block; width: 22px; height: 22px; color: #e7e7e7; flex: none; }
.site-nav .identity .shape-mark svg { display: block; width: 100%; height: 100%; }
.site-nav .identity .wordmark {
  display: inline-flex; align-items: baseline; line-height: .76; color: currentColor; white-space: nowrap;
  font-family: var(--font-logo); font-weight: 400; font-size: 16px; letter-spacing: -.06em;
}
.site-nav .identity .wordmark .i { position: relative; display: inline-block; margin-left: .01em; letter-spacing: 0; }
.site-nav .identity .wordmark .dot {
  position: absolute; left: calc(50% + .08em); top: -.025em;
  width: .09em; height: .09em; margin-left: -.045em; border-radius: 50%; background: var(--accent);
}
/* 間 — give the commerce pages the same breathing room as the rc25 pages */
body { line-height: 1.7; letter-spacing: .02em; }
.page-head { padding-top: clamp(8vh, 12vh, 16vh); padding-bottom: clamp(4vh, 6vh, 8vh); }
.section { padding-top: clamp(6vh, 9vh, 12vh); }

/* Cart + Policies are a page-level utility in the shop header (top-right),
   deliberately separate from the search/filter section below. */
.shop-head-wrap { position: relative; }
.shop-utility { position: absolute; top: 0; right: 0; display: flex; align-items: center; gap: 1.7rem; }
.shop-utility a, .shop-utility .cart-link {
  color: var(--ink-soft); font-family: var(--serif); font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase; text-decoration: none; background: none; border: 0; cursor: pointer; padding: 0; white-space: nowrap;
}
.shop-utility a:hover, .shop-utility .cart-link:hover { color: var(--ink); }
.shop-utility .cart-count { opacity: .7; }
@media (max-width: 640px) { .shop-utility { position: static; justify-content: flex-end; margin-bottom: 1.2rem; } }

/* ==========================================================================
   Shop refinements — quieter type, a clean grid (not masonry columns), and an
   understated postcard-set. 簡素 (omission) + 間 (interval).
   ========================================================================== */
/* calmer headings */
.page-head h1 { font-size: clamp(30px, 4.4vw, 48px); }

/* clean, even grid instead of masonry columns; uncropped, aligned to the top */
.gallery[data-product-grid] {
  columns: auto;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: clamp(30px, 3.6vw, 56px); align-items: start;
}
.gallery[data-product-grid] .card { margin: 0; break-inside: auto; }
.card-media { border: 0; background: transparent; border-radius: 0; }
.card:hover .card-media img, .card:hover .card-media svg { transform: none; }
.card-body { padding: .9rem 0 0; align-items: baseline; }
.card-title { font-size: 14px; font-weight: 400; margin: 0 0 2px; }
.card-meta { font-size: 10px; margin-top: 3px; }
.card-price { font-family: var(--serif); font-size: 12px; letter-spacing: .1em; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.badge { font-family: var(--serif); font-size: 9px; letter-spacing: .18em; background: rgba(8, 11, 15, .55); backdrop-filter: none; border-radius: 2px; padding: 4px 8px; }

/* postcard set — a quiet hairline-framed line, not a filled banner */
.set-cta {
  background: transparent; border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  border-radius: 0; padding: clamp(20px, 3vw, 30px) 0; margin: clamp(30px, 4vw, 48px) 0;
}
.set-cta-title { font-family: var(--font-display); font-weight: 400; letter-spacing: .04em; }
.set-cta-desc { color: var(--ink-soft); }
.set-cta .btn { background: transparent; border: 1px solid var(--line-strong); color: var(--ink); }
.set-cta .btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* facet row — quieter */
.facet-count { color: var(--ink-faint); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; }