/* Ink & Stone site. Colours follow the app: rice paper, sumi ink, vermilion seal, celadon jade. */
:root {
  --paper: #f3ecdd;
  --paper-deep: #e9dfca;
  --card: rgba(251, 247, 238, 0.82);
  --ink: #1b1915;
  --ink-soft: #3d3830;
  --muted: #6f665a;
  --rule: rgba(27, 25, 21, 0.14);
  --seal: #a8291f;
  --seal-ink: #fff4ea;
  --jade: #4f8a76;
  --shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 18px 40px -24px rgba(60, 40, 20, .45);
  --display: "Shippori Mincho B1", "Hiragino Mincho ProN", "Songti SC", Georgia, serif;
  --body: "Spectral", "Iowan Old Style", Georgia, serif;
  --paper-img: url("img/paper.jpg");
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14130f;
    --paper-deep: #1c1a15;
    --card: rgba(33, 30, 25, 0.86);
    --ink: #efe7d8;
    --ink-soft: #d4cab8;
    --muted: #a09583;
    --rule: rgba(239, 231, 216, 0.14);
    --seal: #d2493c;
    --jade: #7cbba4;
    --shadow: 0 18px 40px -24px rgba(0,0,0,.8);
    --paper-img: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: var(--paper-img);
  background-size: 512px;
  font: 18px/1.65 var(--body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--seal); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
::selection { background: var(--seal); color: var(--seal-ink); }
.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* ---------- header ---------- */
header.site { position: relative; z-index: 5; padding: 18px 0; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none;
  font: 700 19px/1 var(--display); letter-spacing: .02em; }
.brand img { width: 38px; height: 38px; object-fit: contain; }
@media (prefers-color-scheme: dark) { .brand img, .not-found .enso { filter: invert(1) hue-rotate(180deg) brightness(.92); } }
nav { display: flex; gap: 22px; }
nav a { color: var(--ink-soft); text-decoration: none; font: 500 13px/1 var(--body);
  letter-spacing: .16em; text-transform: uppercase; padding: 6px 0; border-bottom: 1px solid transparent; }
nav a:hover, nav a[aria-current] { color: var(--ink); border-bottom-color: var(--seal); }
@media (max-width: 520px) { nav { gap: 14px; } nav a { font-size: 11.5px; letter-spacing: .1em; } .brand span { display: none; } }

/* ---------- seal ---------- */
.seal {
  display: inline-grid; place-items: center; width: 64px; height: 64px;
  background: var(--seal); color: var(--seal-ink); border-radius: 6px;
  font: 800 24px/1 var(--display); writing-mode: vertical-rl; letter-spacing: .05em;
  box-shadow: inset 0 0 0 3px var(--seal), inset 0 0 0 5px rgba(255,244,234,.75);
  transform: rotate(-4deg);
  -webkit-mask: radial-gradient(circle at 30% 20%, #000 60%, rgba(0,0,0,.82) 61%, #000 75%);
}

/* ---------- hero ---------- */
.hero { position: relative; padding: 24px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 48px; }
.hero-copy { position: relative; z-index: 2; }
.kicker { font: 600 13px/1 var(--body); letter-spacing: .24em; text-transform: uppercase; color: var(--muted); margin: 0 0 18px; }
.hero h1 { font: 800 clamp(54px, 9vw, 104px)/.95 var(--display); margin: 0; letter-spacing: -.01em; }
.hero h1 .amp { color: var(--seal); font-weight: 500; }
.hero .subtitle { font: 500 clamp(20px, 2.6vw, 28px)/1.2 var(--display); margin: 14px 0 0; color: var(--ink-soft); }
.hero .lede { max-width: 30em; margin: 26px 0 0; font-size: 19px; color: var(--ink-soft); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 24px; margin-top: 34px; }
.badge {
  display: inline-flex; align-items: center; gap: 12px; padding: 12px 22px 12px 18px;
  background: var(--ink); color: var(--paper); border-radius: 12px; text-decoration: none;
  font: 600 15px/1.15 var(--body); box-shadow: var(--shadow); transition: transform .2s ease;
}
.badge:hover { transform: translateY(-2px); }
.badge.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.badge svg { width: 26px; height: 26px; fill: currentColor; }
.badge small { display: block; font-size: 11px; font-weight: 400; opacity: .75; letter-spacing: .04em; }
.hero-note { font-size: 14px; color: var(--muted); }

.scroll-art { position: relative; justify-self: end; width: min(440px, 100%); }
.scroll-art .mist {
  aspect-ratio: 3 / 4.2; width: 100%; height: auto; object-fit: cover; object-position: center 30%;
  -webkit-mask: linear-gradient(#000 70%, transparent), linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-composite: source-in; mask-composite: intersect;
}
.scroll-art .enso { position: absolute; width: 48%; left: -18%; top: 9%; filter: drop-shadow(0 10px 20px rgba(0,0,0,.12)); }
.scroll-art .seal { position: absolute; right: 6%; bottom: 20%; }
@media (prefers-color-scheme: dark) { .scroll-art .mist { opacity: .78; filter: saturate(.8) brightness(.85); } }
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 8px; }
  .scroll-art { order: -1; justify-self: center; width: min(320px, 82%); }
  .scroll-art .mist { aspect-ratio: 1 / 1; }
  .scroll-art .enso { left: -10%; top: 4%; width: 42%; }
  .scroll-art .seal { width: 52px; height: 52px; font-size: 19px; bottom: 16%; }
}

/* ---------- reveal ---------- */
@keyframes bleed { from { opacity: 0; filter: blur(8px); transform: translateY(12px); } to { opacity: 1; filter: none; transform: none; } }
@keyframes stamp { 0% { opacity: 0; transform: scale(1.6) rotate(-12deg); } 70% { opacity: 1; transform: scale(.94) rotate(-3deg); } 100% { transform: scale(1) rotate(-4deg); } }
.reveal { animation: bleed .9s cubic-bezier(.2,.7,.2,1) both; }
.d1 { animation-delay: .1s } .d2 { animation-delay: .25s } .d3 { animation-delay: .4s } .d4 { animation-delay: .55s } .d5 { animation-delay: .7s }
.scroll-art .seal { animation: stamp .55s 1.1s cubic-bezier(.3,1.4,.5,1) both; }
@media (prefers-reduced-motion: reduce) { .reveal, .scroll-art .seal { animation: none; } }

/* ---------- section scaffolding ---------- */
section.band { padding: 72px 0; position: relative; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 36px; flex-wrap: wrap; }
.section-head h2 { font: 800 clamp(32px, 4.6vw, 52px)/1.05 var(--display); margin: 0; max-width: 14em; }
.section-head p { margin: 0; max-width: 28em; color: var(--ink-soft); }
.eyebrow { display: inline-block; font: 600 12px/1 var(--body); letter-spacing: .24em; text-transform: uppercase;
  color: var(--seal); margin-bottom: 14px; }
.stroke-rule { height: 22px; background: url("img/stroke_ink.webp") center / 100% 100% no-repeat; opacity: .85; margin: 0 auto; width: min(560px, 80%); }
@media (prefers-color-scheme: dark) { .stroke-rule { filter: invert(1); opacity: .5; } }

/* ---------- warlords ---------- */
.warlords { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.warlord { position: relative; margin: 0; text-align: center; }
.warlord .portrait {
  position: relative; aspect-ratio: 3 / 4; border-radius: 999px 999px 14px 14px; overflow: hidden;
  background: radial-gradient(120% 80% at 50% 20%, var(--paper), var(--paper-deep));
  border: 1px solid var(--rule); box-shadow: var(--shadow);
}
.warlord .portrait img { position: absolute; inset: auto 0 0 0; width: 100%; height: 92%; object-fit: cover; object-position: top center;
  transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.warlord:hover .portrait img { transform: scale(1.05) translateY(-2%); }
.warlord .ch { position: absolute; top: 10px; left: 50%; transform: translateX(-50%); font: 700 11px/1 var(--body);
  letter-spacing: .18em; color: var(--muted); z-index: 1; }
.warlord figcaption { padding-top: 12px; }
.warlord .name { display: block; font: 700 16px/1.2 var(--display); }
.warlord .style { display: block; font-size: 13.5px; color: var(--muted); line-height: 1.35; margin-top: 3px; }
.rank { display: inline-block; margin-top: 8px; font: 700 12px/1 var(--body); letter-spacing: .08em;
  padding: 5px 8px; border-radius: 4px; color: var(--paper); background: var(--ink-soft); }
.warlord:last-child .rank { color: var(--seal-ink); }
.warlord:last-child .rank { background: var(--seal); }
@media (max-width: 960px) { .warlords { grid-template-columns: repeat(3, 1fr); gap: 20px 14px; } }
@media (max-width: 480px) { .warlords { grid-template-columns: repeat(2, 1fr); } }

/* ---------- heron ---------- */
.mentor { display: grid; grid-template-columns: 380px 1fr; gap: 56px; align-items: center; }
.mentor-art { position: relative; }
.mentor-art img { width: 100%; border-radius: 50%; aspect-ratio: 1; object-fit: cover; object-position: top;
  background: var(--paper-deep); border: 1px solid var(--rule); box-shadow: var(--shadow); }
.mentor-art::before { content: ""; position: absolute; inset: -18px; border-radius: 50%;
  background: url("img/logo_wordmark.webp") center / contain no-repeat; opacity: .14; z-index: -1; transform: rotate(18deg) scale(1.08); }
blockquote.pull { margin: 0 0 22px; font: 500 clamp(22px, 2.8vw, 30px)/1.35 var(--display); color: var(--ink); }
blockquote.pull cite { display: block; margin-top: 10px; font: 600 13px/1 var(--body); letter-spacing: .18em; text-transform: uppercase; color: var(--muted); font-style: normal; }
.steps { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.steps li { font-size: 14px; padding: 6px 12px; border: 1px solid var(--rule); border-radius: 999px; background: var(--card); }
@media (max-width: 860px) { .mentor { grid-template-columns: 1fr; gap: 28px; } .mentor-art { width: min(280px, 72%); margin: 0 auto; } }

/* ---------- features ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { background: var(--card); border: 1px solid var(--rule); border-radius: 18px; padding: 28px 26px 26px; box-shadow: var(--shadow);
  backdrop-filter: blur(2px); }
.feature .icon { width: 54px; height: 54px; margin-bottom: 18px; }
.feature h3 { font: 700 22px/1.2 var(--display); margin: 0 0 8px; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 16.5px; }
.stones { display: flex; }
.stones img { width: 46px; height: 46px; }
.stones img + img { margin-left: -12px; }
@media (max-width: 860px) { .features { grid-template-columns: 1fr; } }

/* ---------- privacy promise ---------- */
.promise { text-align: center; padding: 88px 0 96px; }
.promise h2 { font: 800 clamp(30px, 4.4vw, 50px)/1.1 var(--display); margin: 18px auto 14px; max-width: 16em; }
.promise p { max-width: 34em; margin: 0 auto; color: var(--ink-soft); }
.promise ul { list-style: none; padding: 0; margin: 30px auto 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 28px; }
.promise li { font: 600 14px/1 var(--body); letter-spacing: .14em; text-transform: uppercase; }
.promise li::before { content: ""; display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--seal); margin-right: 10px; vertical-align: 1px; }

/* ---------- footer ---------- */
footer.site { border-top: 1px solid var(--rule); padding: 32px 0 44px; color: var(--muted); font-size: 14.5px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px 32px; flex-wrap: wrap; align-items: center; }
footer.site a { color: var(--ink-soft); text-decoration: none; }
footer.site a:hover { color: var(--seal); }
footer.site .links { display: flex; gap: 22px; flex-wrap: wrap; }

/* ---------- document pages (privacy, terms, support) ---------- */
.doc-hero { position: relative; padding: 40px 0 34px; overflow: hidden; }
.doc-hero::after { content: ""; position: absolute; right: -60px; top: -40px; width: 420px; height: 300px;
  background: url("img/mist.webp") center 35% / cover;
  -webkit-mask: radial-gradient(closest-side, #000 30%, transparent); mask: radial-gradient(closest-side, #000 30%, transparent);
  opacity: .55; pointer-events: none; z-index: -1; }
@media (prefers-color-scheme: dark) { .doc-hero::after { opacity: .2; } }
.doc-hero h1 { font: 800 clamp(40px, 7vw, 68px)/1 var(--display); margin: 0; }
.doc-hero .meta { margin: 14px 0 0; color: var(--muted); font-size: 15px; }

.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; padding-bottom: 80px; align-items: start; }
.toc { position: sticky; top: 24px; font-size: 14.5px; }
.toc p { font: 700 12px/1 var(--body); letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin: 6px 0 14px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.toc a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; color: var(--ink-soft); text-decoration: none; line-height: 1.35; }
.toc a:hover { color: var(--ink); border-left-color: var(--seal); }
@media (max-width: 860px) { .doc { grid-template-columns: 1fr; gap: 0; } .toc { display: none; } }

.prose { background: var(--card); border: 1px solid var(--rule); border-radius: 20px; box-shadow: var(--shadow);
  padding: clamp(24px, 5vw, 56px); max-width: 760px; }
.prose > :first-child { margin-top: 0; }
.prose h2 { font: 700 clamp(23px, 3vw, 28px)/1.25 var(--display); margin: 44px 0 10px; scroll-margin-top: 20px;
  display: flex; align-items: baseline; gap: 12px; }
.prose h2::before { content: ""; flex: none; width: 10px; height: 10px; background: var(--seal); border-radius: 2px; transform: rotate(45deg) translateY(-3px); }
.prose h3 { font: 700 19px/1.3 var(--display); margin: 26px 0 4px; }
.prose p, .prose li { color: var(--ink-soft); }
.prose ul { padding-left: 22px; }
.prose li { margin: 4px 0; }
.prose li::marker { color: var(--seal); }
.summary { position: relative; margin: 0 0 8px; padding: 22px 24px 22px 92px; border-radius: 14px;
  background: var(--paper-deep); border: 1px solid var(--rule); color: var(--ink); }
.summary .seal { position: absolute; left: 18px; top: 50%; margin-top: -26px; width: 52px; height: 52px; font-size: 18px; }
.summary p { margin: 0; color: var(--ink); }
@media (max-width: 520px) { .summary { padding: 82px 20px 20px; } .summary .seal { top: 18px; margin-top: 0; } }

.contact-card { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin: 0 0 8px; padding: 24px; border-radius: 16px;
  background: var(--ink); color: var(--paper); }
.contact-card .label { font: 600 12px/1 var(--body); letter-spacing: .2em; text-transform: uppercase; opacity: .7; }
.contact-card a.mail { display: block; margin-top: 6px; color: var(--paper); font: 700 clamp(20px, 3.4vw, 28px)/1.2 var(--display); text-decoration: none; word-break: break-word; }
.contact-card a.mail:hover { text-decoration: underline; }
.contact-card p { margin: 0; flex: 1 1 260px; font-size: 15.5px; color: inherit; opacity: .85; }
.contact-card img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; object-position: top; background: var(--paper); }

.faq details { border-top: 1px solid var(--rule); padding: 4px 0; }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; padding: 14px 32px 14px 0; position: relative; font: 700 18px/1.35 var(--display); color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 10px; font: 400 26px/1 var(--body); color: var(--seal); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 16px; }

.not-found { min-height: 60vh; display: grid; place-items: center; text-align: center; padding: 40px 0 80px; }
.not-found img { width: 180px; margin: 0 auto 20px; }
.not-found h1 { font: 800 44px/1.1 var(--display); margin: 0 0 10px; }

/* ---------- beta ---------- */
section.beta { padding: 0 0 64px; margin-top: -24px; }
.beta-card { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  padding: clamp(26px, 5vw, 48px); border-radius: 22px; background: var(--ink); color: var(--paper); box-shadow: var(--shadow); }
.beta-card h2 { font: 800 clamp(28px, 4vw, 44px)/1.1 var(--display); margin: 0 0 10px; }
.beta-card p { margin: 0; max-width: 34em; opacity: .85; }
.beta-card .eyebrow { color: #e0796d; }
.beta-card .badge { background: var(--seal); color: var(--seal-ink); flex: none; }

/* ---------- phones ---------- */
html { overflow-x: clip; }
body { -webkit-tap-highlight-color: transparent; }
@media (max-width: 640px) {
  body { font-size: 17px; }
  header.site { padding: 8px 0; }
  nav a { padding: 16px 0; }                       /* 44px tap height */
  .hero { padding: 0 0 40px; }
  .hero .lede { font-size: 17.5px; margin-top: 18px; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 26px; }
  .hero-actions .badge { justify-content: center; min-height: 54px; padding: 10px 12px; white-space: nowrap; }
  .hero-actions .badge svg { width: 22px; height: 22px; }
  .hero-note { grid-column: 1 / -1; text-align: center; }
  section.beta { padding-bottom: 40px; margin-top: 0; }
  .beta-card { padding: 26px 22px; gap: 20px; }
  .beta-card .badge { width: 100%; justify-content: center; min-height: 52px; }
  section.band { padding: 48px 0; }
  .section-head { margin-bottom: 26px; }
  .warlord .style { font-size: 13px; }
  .feature { padding: 22px 20px; display: grid; grid-template-columns: 54px 1fr; column-gap: 16px; }
  .feature .icon { margin: 0; grid-row: span 2; }
  .feature h3 { font-size: 20px; margin-bottom: 4px; }
  .promise { padding: 56px 0 64px; }
  footer.site .wrap { flex-direction: column; align-items: flex-start; gap: 6px; }
  footer.site .links { gap: 0 20px; }
  footer.site .links a { display: inline-block; padding: 11px 0; }
  footer.site .links a:first-child { flex-basis: 100%; }
  .doc-hero { padding: 22px 0 22px; }
  .prose { border-radius: 16px; }
  .prose h2 { margin-top: 34px; }
  .contact-card { padding: 20px; gap: 14px; }
  .contact-card img { width: 56px; height: 56px; }
  .contact-card a.mail { padding: 6px 0; }
  .faq summary { padding: 16px 32px 16px 0; }
}
@media (max-width: 360px) {
  .hero-actions { grid-template-columns: 1fr; }
  .wrap { width: calc(100% - 28px); }
}