/* Shosin Labs — company site.

   One stylesheet, no framework, no web fonts: first paint costs one request and
   the page is readable before anything else arrives.

   The design is deliberately unlike the product sites. Murmur's site is dark and
   purple; this one is paper-white, hairline-ruled and set in a grid, because a
   studio site and a product site are doing different jobs and should not be
   mistaken for each other. Light first, dark honoured. */

/* ---------- tokens ---------- */
:root {
  --paper: #f7f7f5;
  --paper-2: #efefeb;
  --paper-3: #e6e6e0;
  --ink: #111110;
  --ink-2: #55554f;
  --ink-3: #8b8b84;
  --rule: #dcdcd4;
  --rule-strong: #b9b9b0;
  --accent: #d5002b;
  --accent-ink: #ffffff;

  --wrap: 1200px;
  --wrap-narrow: 760px;
  --gutter: 24px;

  --font: "Helvetica Neue", Helvetica, Inter, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Arial, "Hiragino Sans", "Noto Sans JP", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d0d0c;
    --paper-2: #161614;
    --paper-3: #1f1f1c;
    --ink: #f2f2ec;
    --ink-2: #a9a9a1;
    --ink-3: #787870;
    --rule: #2b2b27;
    --rule-strong: #46463f;
    --accent: #ff4a5e;
    --accent-ink: #14100f;
  }
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
img { height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p a, li a, .prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; text-decoration-color: var(--rule-strong); }
p a:hover, li a:hover, .prose a:hover { color: var(--accent); text-decoration-color: currentColor; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.06; font-weight: 700; letter-spacing: -0.03em; }
h1 { font-size: clamp(2.6rem, 1.3rem + 4.4vw, 5rem); letter-spacing: -0.045em; }
h2 { font-size: clamp(1.75rem, 1.1rem + 2.2vw, 2.85rem); letter-spacing: -0.035em; }
h3 { font-size: 1.16rem; letter-spacing: -0.02em; }
p { margin: 0 0 1.05em; }
ul, ol { margin: 0 0 1.05em; padding-left: 1.15em; }
code { font-family: var(--mono); font-size: .88em; background: var(--paper-2); padding: .1em .35em; }
em { font-style: italic; }
table { border-collapse: collapse; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 10px 16px;
}
.skip-link:focus { top: 12px; }

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
/* The narrow measure keeps the site's ONE left edge rather than centring itself:
   a document that starts 200px further in than the masthead above it reads as a
   different page. The container stays on the grid; its children take the
   measure. */
.wrap--narrow > * { max-width: var(--wrap-narrow); }
.section { padding: clamp(56px, 7vw, 104px) 0; border-top: 1px solid var(--rule); }
.section--flush { padding-top: clamp(28px, 3vw, 44px); }
.section--tint { background: var(--paper-2); }
.section__head { max-width: 48ch; margin-bottom: clamp(32px, 4vw, 56px); }
.section__head h2 { margin-bottom: .3em; }
.section__more { margin-top: 32px; font-family: var(--mono); font-size: .82rem; letter-spacing: .04em; text-transform: uppercase; }
.section__more a { border-bottom: 1px solid var(--rule-strong); padding-bottom: 2px; }
.section__more a:hover { color: var(--accent); border-color: currentColor; }

.lede { font-size: clamp(1.05rem, .98rem + .4vw, 1.3rem); line-height: 1.45; color: var(--ink-2); max-width: 46ch; }
.fine { font-size: .9rem; color: var(--ink-3); }

.eyebrow {
  font-family: var(--mono); font-size: .72rem; font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent);
  margin: 0 0 1.4em;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner { display: flex; align-items: center; gap: 24px; min-height: 64px; }
.site-header__brand { margin-right: auto; }

.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.logo__mark { display: block; }
.logo__word { font-weight: 700; font-size: 1rem; letter-spacing: -0.02em; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-2); padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.site-nav__mail { color: var(--accent) !important; }

.nav-toggle { display: none; background: none; border: 1px solid var(--rule-strong); width: 40px; height: 36px; padding: 0; cursor: pointer; }
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after {
  display: block; width: 18px; height: 1.5px; background: var(--ink); margin-inline: auto; position: relative;
}
.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--rule); padding: 8px var(--gutter) 20px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: .84rem; }
}

/* ---------- hero ---------- */
.hero { padding: clamp(56px, 9vw, 128px) 0 clamp(48px, 6vw, 88px); }
.hero__inner { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: end; }
.hero h1 { margin-bottom: .34em; max-width: 14ch; }
.hero .lede { max-width: 40ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 0; }

.page-hero { padding: clamp(36px, 5vw, 72px) 0 clamp(28px, 3.5vw, 48px); }
.page-hero h1 { max-width: 16ch; }
.page-hero--legal h1 { font-size: clamp(2rem, 1.2rem + 2.6vw, 3.1rem); max-width: 22ch; }

.btn {
  display: inline-block; font-family: var(--mono); font-size: .78rem; letter-spacing: .1em;
  text-transform: uppercase; padding: 14px 22px; border: 1px solid var(--ink); color: var(--ink);
  background: transparent; transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.facts { margin: 0; border-top: 1px solid var(--ink); }
.facts__row { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
.facts dt { font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.facts dd { margin: 0; font-weight: 700; font-size: .95rem; }

@media (max-width: 860px) {
  .hero__inner { grid-template-columns: 1fr; align-items: start; }
  .hero h1 { max-width: none; }
}

/* ---------- app list ---------- */
.app-list { border-top: 1px solid var(--ink); }
.app-row {
  display: grid; grid-template-columns: 52px minmax(0, 1fr) auto 24px;
  gap: 24px; align-items: center; padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}
.app-row:hover { background: var(--paper-2); }
.app-row:hover .app-row__name { color: var(--accent); }
.app-row:hover .app-row__arrow { transform: translateX(4px); color: var(--accent); }
.app-icon { border-radius: 22%; }
.app-row__body { display: block; min-width: 0; }
.app-row__name { display: block; font-weight: 700; font-size: 1.22rem; letter-spacing: -0.02em; transition: color .15s; }
.app-row__role { display: block; font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin: 4px 0 6px; }
.app-row__short { display: block; color: var(--ink-2); font-size: .98rem; max-width: 54ch; }
.app-row__arrow { justify-self: end; transition: transform .15s, color .15s; }

.tags { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; }
.tag {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase;
  border: 1px solid var(--rule-strong); color: var(--ink-2); padding: 4px 8px;
}

@media (max-width: 720px) {
  .app-row { grid-template-columns: 44px minmax(0, 1fr); grid-template-areas: "icon body" ". meta"; row-gap: 12px; }
  .app-row__icon { grid-area: icon; }
  .app-row__body { grid-area: body; }
  .app-row__meta { grid-area: meta; }
  .app-row__arrow { display: none; }
  .app-icon { width: 44px; height: 44px; }
}

/* ---------- numbered principles ---------- */
.numbered { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--ink); }
.numbered__item { padding: 28px 32px 32px 0; border-bottom: 1px solid var(--rule); }
.numbered__item:nth-child(odd) { border-right: 1px solid var(--rule); padding-right: 40px; }
.numbered__item:nth-child(even) { padding-left: 40px; }
.numbered__num { display: block; font-family: var(--mono); font-size: .8rem; color: var(--accent); margin-bottom: 14px; letter-spacing: .08em; }
.numbered__item h3 { margin-bottom: .5em; }
.numbered__item p { color: var(--ink-2); margin: 0; font-size: .98rem; max-width: 46ch; }

@media (max-width: 760px) {
  .numbered { grid-template-columns: 1fr; }
  .numbered__item, .numbered__item:nth-child(odd), .numbered__item:nth-child(even) { padding: 24px 0; border-right: 0; }
}

/* ---------- column grids ---------- */
.cols { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.cols--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.col { padding: 28px 32px 8px 0; border-bottom: 1px solid var(--rule); }
.col + .col { border-left: 1px solid var(--rule); padding-left: 32px; }
.col h2, .col h3 { margin-bottom: .55em; }
.col p { color: var(--ink-2); font-size: .98rem; }

@media (max-width: 860px) {
  .cols--2, .cols--3 { grid-template-columns: 1fr; }
  .col, .col + .col { border-left: 0; padding: 24px 0 8px; }
}

/* ---------- prose ---------- */
.prose-grid { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.prose-grid__item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(24px, 4vw, 64px); padding: 40px 0; border-bottom: 1px solid var(--rule); }
.prose-grid__item h2 { font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem); margin: 0; }
.prose-grid__num { display: block; font-family: var(--mono); font-size: .78rem; color: var(--accent); letter-spacing: .1em; margin-bottom: 12px; }
.prose p { color: var(--ink-2); }
.prose p:last-child { margin-bottom: 0; }

@media (max-width: 760px) {
  .prose-grid__item { grid-template-columns: 1fr; gap: 16px; }
}

.ticks { list-style: none; padding: 0; margin: 0 0 1.2em; }
.ticks li { position: relative; padding-left: 26px; margin-bottom: .7em; color: var(--ink-2); }
.ticks li::before { content: "—"; position: absolute; left: 0; color: var(--accent); }

.link-list { list-style: none; padding: 0; margin: 32px 0 0; border-top: 1px solid var(--rule); max-width: 420px; }
.link-list li { border-bottom: 1px solid var(--rule); }
.link-list a { display: block; padding: 14px 0; font-family: var(--mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; }
.link-list a:hover { color: var(--accent); }

/* ---------- app page ---------- */
.app-head { display: flex; align-items: center; gap: clamp(20px, 3vw, 36px); }
.app-head__icon .app-icon { width: 88px; height: 88px; }
.app-head__text { min-width: 0; }
.app-head h1 { margin-bottom: .22em; }

.store-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 28px 0 0; }
.store-badge { display: inline-flex; }
.store-badge img { height: 44px; width: auto; }
.store-buttons--compact .store-badge img { height: 36px; }

.app-site { margin-top: 28px; font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; }
.app-site a { border-bottom: 1px solid var(--rule-strong); }
.app-site a:hover { color: var(--accent); }

.app-legal h2 { font-size: 1.3rem; }
.app-legal__list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule-strong); }
.app-legal__list li { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.app-legal__list > li > a { font-weight: 700; }
.app-legal__list > li > a:hover { color: var(--accent); }
.app-legal__scopes { display: flex; gap: 8px; }
.app-legal__scopes a, .legal-card__scope {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  border: 1px solid var(--rule-strong); padding: 4px 9px; color: var(--ink-2);
}
.app-legal__scopes a:hover, .legal-card__scope:hover { border-color: var(--accent); color: var(--accent); }
.app-legal__external { font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; }

/* ---------- legal index ---------- */
.legal-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--ink); }
.legal-card { padding: 28px 32px 28px 0; border-bottom: 1px solid var(--rule); }
.legal-card:nth-child(odd) { border-right: 1px solid var(--rule); }
.legal-card:nth-child(even) { padding-left: 40px; }
.legal-card__head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.legal-card__head .app-icon { width: 40px; height: 40px; }
.legal-card__head h2 { margin: 0; font-size: 1.16rem; letter-spacing: -0.02em; }
.legal-card__head h2 a:hover { color: var(--accent); }
.legal-card__table { width: 100%; }
.legal-card__table th, .legal-card__table td { text-align: left; padding: 10px 0; border-bottom: 1px solid var(--rule); vertical-align: middle; font-weight: 400; }
.legal-card__table th a { font-weight: 700; }
.legal-card__table th a:hover { color: var(--accent); }
.legal-card__table td { text-align: right; font-family: var(--mono); font-size: .74rem; color: var(--ink-3); }
.legal-card__table td:first-of-type { text-align: left; }
.legal-card__scope { margin-right: 6px; display: inline-block; }
.legal-card__note, .legal-card__external { font-family: var(--mono); font-size: .76rem; letter-spacing: .06em; color: var(--ink-3); }
.legal-card__external a { color: var(--ink); border-bottom: 1px solid var(--rule-strong); }
.legal-card__external a:hover { color: var(--accent); }

@media (max-width: 800px) {
  .legal-cards { grid-template-columns: 1fr; }
  .legal-card, .legal-card:nth-child(odd), .legal-card:nth-child(even) { padding: 24px 0; border-right: 0; }
}

/* ---------- legal document ---------- */
.legal__meta { display: flex; flex-wrap: wrap; gap: 28px; margin: 24px 0 0; padding-top: 18px; border-top: 1px solid var(--rule); }
.legal__meta div { display: flex; flex-direction: column; gap: 4px; }
.legal__meta dt { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.legal__meta dd { margin: 0; font-size: .94rem; }

.legal__scopes { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 20px; font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.legal__scopes a { border: 1px solid var(--rule-strong); padding: 5px 10px; color: var(--ink-2); }
.legal__scopes a:hover { border-color: var(--accent); color: var(--accent); }

.legal { font-size: 1rem; }
.legal .wrap > * { max-width: var(--wrap-narrow); }
.legal__toc { margin: 36px 0 44px; padding: 22px 26px; border: 1px solid var(--rule); }
.legal__toc h2 { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1em; }
.legal__toc ol { margin: 0; padding-left: 0; list-style: none; columns: 2; column-gap: 32px; }
.legal__toc li { margin-bottom: .45em; font-size: .92rem; break-inside: avoid; }
.legal__section { margin-bottom: 40px; scroll-margin-top: 90px; }
.legal__section h2 { font-size: clamp(1.25rem, 1.05rem + .7vw, 1.6rem); margin-bottom: .7em; padding-top: 28px; border-top: 1px solid var(--rule); }
.legal__section p, .legal__list li { color: var(--ink-2); }
.legal__list { padding-left: 1.15em; }
.legal__list li { margin-bottom: .6em; }
.legal__only {
  display: inline-block; font-family: var(--mono); font-size: .62rem; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase; vertical-align: middle;
  border: 1px solid var(--accent); color: var(--accent); padding: 2px 7px; margin-right: 8px;
}
.legal__onlyline { margin-bottom: .5em; }
.legal__back { margin-top: 48px; font-family: var(--mono); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.legal__back a:hover { color: var(--accent); }

@media (max-width: 640px) { .legal__toc ol { columns: 1; } }

.table-wrap { overflow-x: auto; margin: 0 0 1.4em; }
.legal__table { width: 100%; font-size: .92rem; }
.legal__table th, .legal__table td { text-align: left; vertical-align: top; padding: 12px 16px 12px 0; border-bottom: 1px solid var(--rule); }
.legal__table thead th { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); border-bottom: 1px solid var(--ink); }
.legal__table tbody th { font-weight: 700; width: 22%; }
.legal__table td { color: var(--ink-2); }

@media (max-width: 640px) {
  .legal__table, .legal__table tbody, .legal__table tr, .legal__table td, .legal__table th { display: block; width: auto; }
  .legal__table thead { display: none; }
  .legal__table tr { border-bottom: 1px solid var(--ink); padding-bottom: 12px; margin-bottom: 12px; }
  .legal__table tbody th { width: auto; border-bottom: 0; padding-bottom: 4px; }
  .legal__table td { border-bottom: 0; padding: 0 0 8px; }
  .legal__table td::before { content: attr(data-label); display: block; font-family: var(--mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 2px; }
}

/* ---------- breadcrumbs ---------- */
.crumbs { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 24px; }
.crumbs a:hover { color: var(--accent); }
.crumbs span[aria-hidden] { padding: 0 6px; color: var(--rule-strong); }

/* ---------- contact ---------- */
.contact__inner { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: end; }
.contact h2 { margin-bottom: .3em; }
.contact__link { margin: 0; text-align: right; }
.mailto {
  font-family: var(--mono); font-size: clamp(.86rem, .8rem + .3vw, 1.05rem);
  letter-spacing: .02em; border-bottom: 1px solid var(--accent); padding-bottom: 3px;
}
.mailto:hover { color: var(--accent); }
.support__mail { margin-top: 36px; }

@media (max-width: 760px) {
  .contact__inner { grid-template-columns: 1fr; }
  .contact__link { text-align: left; }
}

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--ink); padding: clamp(40px, 5vw, 72px) 0 28px; }
.site-footer__inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: clamp(28px, 4vw, 64px); }
.site-footer__brand p { color: var(--ink-2); font-size: .92rem; margin: 14px 0 0; max-width: 28ch; }
.site-footer__mail a { font-family: var(--mono); font-size: .82rem; border-bottom: 1px solid var(--rule-strong); }
.site-footer__mail a:hover { color: var(--accent); }
.site-footer__cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.site-footer__col h2 { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.2em; font-weight: 500; }
.site-footer__col ul { list-style: none; margin: 0; padding: 0; }
.site-footer__col li { margin-bottom: .6em; font-size: .92rem; }
.site-footer__col a:hover { color: var(--accent); }
.site-footer__legal { margin-top: clamp(32px, 4vw, 56px); padding-top: 18px; border-top: 1px solid var(--rule); }
.site-footer__legal p { font-size: .78rem; color: var(--ink-3); margin: 0 0 .4em; max-width: 78ch; }

@media (max-width: 760px) {
  .site-footer__inner { grid-template-columns: 1fr; }
  .site-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
}

/* ---------- print (legal documents get printed) ---------- */
@media print {
  .site-header, .site-footer, .legal__toc, .legal__scopes, .crumbs, .legal__back, .contact { display: none; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .section, .page-hero { padding: 0; border: 0; }
  .legal__section { break-inside: avoid; }
  a { text-decoration: none; }
}