/*
 * Aozumi — static site.
 *
 * Visual language: sumi ink on warm paper. Tokens mirror the app's design system
 * (src/app/globals.css) — indigo 藍 as the single accent, vermilion reserved for
 * actions and the seal, the kanji itself as the loudest thing on the page. The ink
 * comes from real brush shapes (enso, tapered strokes) rather than from clip art:
 * no cherry blossoms, no red-on-black, no fantasy Japan.
 */

:root {
  --paper: #f3eddf;
  --surface: #fffaf0;
  --surface-2: #e9e2d2;
  --ink: #20243a;
  --ink-2: #54566a;
  --ink-3: #66646e;
  --line: #d4c8b3;
  --line-strong: #a99c87;

  --accent: #273662;
  --accent-hover: #1c294d;
  --accent-ink: #fffaf0;
  --accent-soft: #e0e3ec;
  --accent-line: #aeb7cd;

  --action: #c44b32;
  --action-hover: #a93d28;
  --action-ink: #fffaf0;

  --success: #15803d;

  --radius-sm: 0.3rem;
  --radius-md: 0.55rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  --shadow-card: 0 1px 0 rgb(39 54 98 / 0.06);
  --shadow-lift: 0 18px 50px -28px rgb(20 28 50 / 0.42);

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  /* Latin display face: a book serif, because the product is a book. */
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua",
    "Hoefler Text", Georgia, "Times New Roman", serif;
  --font-jp: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Yu Gothic",
    YuGothic, "Noto Sans JP", "Noto Sans CJK JP", Meiryo, "MS PGothic", sans-serif;
  --font-jp-serif: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro",
    "Noto Serif JP", "MS PMincho", serif;

  --grain: 0.055;
  --wrap: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #11182a;
    --surface: #18223a;
    --surface-2: #202c48;
    --ink: #f4eddf;
    --ink-2: #c5bdaf;
    --ink-3: #9a9caa;
    --line: #33405c;
    --line-strong: #56617a;

    --accent: #aebbe6;
    --accent-hover: #c4cef0;
    --accent-ink: #11182a;
    --accent-soft: #263451;
    --accent-line: #53658f;

    --action: #e16c50;
    --action-hover: #f17c5f;
    --action-ink: #11182a;

    --success: #5cc98a;
    --shadow-card: 0 1px 0 rgb(0 0 0 / 0.3);
    --shadow-lift: 0 18px 50px -28px rgb(0 0 0 / 0.75);
    --grain: 0.035;
  }
}

/* ── Base ─────────────────────────────────────────────────────────────── */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Washi grain: a fixed noise wash over the whole page, the way paper has tooth. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: var(--grain);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

.ink-defs { position: absolute; width: 0; height: 0; overflow: hidden; }

img { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }

a { color: inherit; }

h1, h2, h3 {
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }

:lang(ja) { font-family: var(--font-jp); }

/* Language switching: both languages live in the DOM, CSS hides the inactive one,
   so the page is correct with JavaScript disabled. */
:root[data-lang="pt"] [data-l="en"],
:root[data-lang="en"] [data-l="pt"] { display: none; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.gotcha { position: absolute; left: -9999px; opacity: 0; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  z-index: 60;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
}
.skip:focus { left: 0.75rem; }

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.5rem);
}

.wrap.narrow { max-width: 46rem; }

/* ── Ink furniture ────────────────────────────────────────────────────── */

/* Brushed underline that sits under a phrase in the headline. */
.brushed { position: relative; display: inline-block; }
.brush {
  position: absolute;
  left: -0.06em;
  right: -0.06em;
  bottom: -0.22em;
  width: calc(100% + 0.12em);
  height: 0.3em;
  fill: var(--action);
  opacity: 0.85;
}

/* Section divider: one dry brush stroke instead of a border. */
.rule-wrap { display: flex; justify-content: center; padding-block: 0.5rem; }
.rule {
  width: min(34rem, 70%);
  height: 0.7rem;
  fill: var(--line-strong);
  opacity: 0.5;
}

/* Enso — the brushed circle, sitting behind the demo card like a watermark. */
.enso {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(19rem, 96%);
  height: auto;
  aspect-ratio: 1;
  transform: translate(-50%, -50%) rotate(-8deg);
  fill: var(--accent);
  opacity: 0.11;
  pointer-events: none;
}

/* Hanko — the vermilion seal a Japanese book is stamped with. */
.hanko {
  display: inline-grid;
  place-items: center;
  width: 4.6rem;
  height: 4.6rem;
  margin: 0 auto 1.5rem;
  background: var(--action);
  color: var(--action-ink);
  border-radius: 0.35rem;
  transform: rotate(-4deg);
  box-shadow: 0 1px 0 rgb(0 0 0 / 0.12);
}
.hanko span {
  writing-mode: vertical-rl;
  font-family: var(--font-jp-serif);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.05;
  letter-spacing: 0.04em;
}

/* ── Buttons ──────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 0.78rem 1.35rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.97rem;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease,
    transform 160ms ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--action); color: var(--action-ink); }
.btn-primary:hover { background: var(--action-hover); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink-2); background: var(--surface); }

.btn-small {
  padding: 0.5rem 0.9rem;
  font-size: 0.87rem;
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-small:hover { background: var(--accent-hover); }

.btn-tiny {
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: transparent;
  color: var(--ink-2);
  border-color: var(--line);
}
.btn-tiny:hover { color: var(--ink); border-color: var(--line-strong); }

/* ── Header ───────────────────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 4rem;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  margin-right: auto;
}
.wordmark-mark {
  font-family: var(--font-jp-serif);
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.wordmark-text {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  font-size: 1.12rem;
}

.site-nav {
  display: flex;
  gap: 1.35rem;
  font-size: 0.9rem;
}
.site-nav a {
  text-decoration: none;
  color: var(--ink-2);
  padding-block: 0.4rem;
  border-bottom: 1.5px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--accent-line); }

.header-actions { display: flex; align-items: center; gap: 1rem; }

.lang {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--ink-3);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
.lang button {
  background: none;
  border: 0;
  padding: 0.2rem 0.1rem;
  font: inherit;
  font-weight: 600;
  color: var(--ink-3);
  cursor: pointer;
}
.lang button[aria-pressed="true"] {
  color: var(--ink);
  box-shadow: inset 0 -1.5px 0 var(--action);
}

@media (max-width: 980px) { .site-nav { display: none; } }

/* On a phone the section links go, but the one action stays: it is the only thing
   in the header a reader can act on. */
@media (max-width: 560px) {
  .header-inner { gap: 0.75rem; }
  .header-actions { gap: 0.6rem; }
  .wordmark-mark { font-size: 1.1rem; }
  .wordmark-text { font-size: 1rem; }
  .header-actions .btn-small { padding: 0.45rem 0.7rem; font-size: 0.8rem; }
}

/* ── Hero ─────────────────────────────────────────────────────────────── */

.hero {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6rem) clamp(3rem, 7vw, 5.5rem);
  background:
    radial-gradient(70rem 34rem at 78% -14%, color-mix(in srgb, var(--accent-soft) 65%, transparent), transparent 60%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink-3);
  margin-bottom: 1.2rem;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7.4vw, 4.6rem);
  letter-spacing: -0.02em;
  font-weight: 600;
  line-height: 1.06;
}

.lead {
  margin-top: 1.6rem;
  font-size: clamp(1.04rem, 1.5vw, 1.16rem);
  color: var(--ink-2);
  max-width: 34rem;
}
.lead strong { color: var(--ink); font-weight: 640; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  list-style: none;
  padding: 0;
  margin: 1.75rem 0 0;
  font-size: 0.87rem;
  color: var(--ink-3);
}
.hero-facts li { display: flex; align-items: center; gap: 0.45rem; }
.hero-facts li::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent-line);
}

/* ── Stroke demo card ─────────────────────────────────────────────────── */

.demo-card {
  position: relative;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lift);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  overflow: hidden;
}

.demo-head {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
}

.demo-formula {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.5rem, 2vw, 1rem);
  margin-top: 1.1rem;
  line-height: 1;
}
.glyph-part { font-size: clamp(2rem, 5vw, 2.6rem); color: var(--ink-2); }
.glyph-result { font-size: clamp(2.6rem, 6.5vw, 3.4rem); color: var(--accent); font-weight: 600; }
.op { font-family: var(--font-sans); font-size: 1.1rem; color: var(--ink-3); }

.demo-gloss {
  margin-top: 0.7rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--ink-3);
}
.demo-gloss b { color: var(--ink-2); font-weight: 600; }

.demo-stage {
  position: relative;
  margin-top: 1rem;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
}

.stroke-svg {
  width: min(15rem, 60vw);
  height: auto;
  fill: none;
}
.stroke-svg .grid line {
  stroke: var(--line);
  stroke-width: 0.8;
  stroke-dasharray: 4 4;
}
.stroke-svg .ghost path {
  stroke: color-mix(in srgb, var(--line-strong) 55%, transparent);
  stroke-width: 4.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.stroke-svg .strokes path {
  stroke: var(--accent);
  stroke-width: 4.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.demo-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.9rem;
}
.chant {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--ink-2);
  font-size: 1rem;
}

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .demo-card { max-width: 32rem; }
}

@media (max-width: 480px) {
  .hero-cta { display: grid; }
  .hero-cta .btn { width: 100%; }
}

/* ── Interactive reading taste ───────────────────────────────────────── */

.try-section {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.try-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.try-copy { margin-bottom: 0; }
.try-copy h2 b {
  color: var(--accent);
  font-family: var(--font-jp-serif);
  font-weight: 600;
}

.method-origin {
  margin-top: 1.5rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent-line);
  color: var(--ink-3);
  font-size: 0.9rem;
}

.reading-demo {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lift);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.reading-demo-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}
.reading-demo-head h3 {
  margin-top: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
}
.reading-level {
  display: inline-grid;
  place-items: center;
  min-width: 2.6rem;
  min-height: 2.1rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
}

.reading-guidance {
  margin-top: 1.2rem;
  color: var(--ink-3);
  font-size: 0.88rem;
}

.reading-sentence {
  display: flex;
  align-items: center;
  margin-top: 1.4rem;
  padding: 1.25rem 1.1rem;
  border-block: 1px solid var(--line);
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.focus-word {
  border: 0;
  border-bottom: 2px solid var(--action);
  padding: 0 0.05em;
  background: color-mix(in srgb, var(--action) 10%, transparent);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.focus-word:hover { background: color-mix(in srgb, var(--action) 18%, transparent); }

.audio-button {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.audio-button:hover { border-color: var(--accent); }
.audio-button.is-playing { background: var(--accent); color: var(--accent-ink); }
.audio-button-small { width: 2.35rem; height: 2.35rem; }

.word-detail {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--line);
}
.word-detail > div { display: grid; }
.word-reading { font-size: 1.05rem; font-weight: 650; }
.word-meaning { color: var(--ink-3); font-size: 0.85rem; }

.reading-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.2rem;
}
.aid-button {
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
}
.aid-button:hover { color: var(--ink); background: var(--surface); }
.aid-button .hide-label { display: none; }
.aid-button[aria-expanded="true"] .show-label { display: none; }
.aid-button[aria-expanded="true"] .hide-label { display: inline; }

.reading-aids {
  display: grid;
  gap: 0.35rem;
  min-height: 1.8rem;
  margin-top: 1rem;
  color: var(--ink-2);
}
.reading-aids p:first-child { font-size: 1rem; }
.reading-aids p:last-child { font-size: 0.92rem; }

@media (max-width: 820px) {
  .try-grid { grid-template-columns: 1fr; }
  .try-copy { max-width: 38rem; }
}

@media (max-width: 480px) {
  .reading-sentence {
    align-items: flex-start;
    flex-wrap: wrap;
    padding-inline: 0;
    font-size: 1.36rem;
  }
  .reading-sentence .audio-button { margin-left: 0; }
  .reading-controls { display: grid; grid-template-columns: 1fr 1fr; }
  .aid-button { padding-inline: 0.6rem; }
}

/* ── Sections ─────────────────────────────────────────────────────────── */

.section { padding-block: clamp(3.5rem, 8vw, 6rem); }

.band {
  padding-block: clamp(3rem, 7vw, 5rem);
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.band-soft {
  background: color-mix(in srgb, var(--surface) 55%, var(--paper));
  border-block: 1px solid var(--line);
}

.section-head { max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3rem); }

.kicker {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 650;
  color: var(--action);
  margin-bottom: 0.75rem;
}

.section-head h2,
.signup h2,
.name-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.012em;
}

.section-sub {
  margin-top: 1rem;
  color: var(--ink-2);
  font-size: 1.02rem;
}

.statement {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 600;
}

.big-body {
  margin-top: 1.2rem;
  font-size: clamp(1.02rem, 1.5vw, 1.13rem);
  color: var(--ink-2);
}
.big-body b { color: var(--ink); }

/* ── Audience ─────────────────────────────────────────────────────────── */

.audience {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

.aud {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 3vw, 2rem);
  box-shadow: var(--shadow-card);
}
.aud.yes { border-top: 3px solid var(--accent); }
.aud.no { border-top: 3px solid var(--line-strong); }

.aud-tag {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--ink-3);
  margin-bottom: 1.1rem;
}
.aud.yes .aud-tag { color: var(--accent); }

.ticks,
.crosses {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.7rem;
  font-size: 0.95rem;
  color: var(--ink-2);
}
.ticks li,
.crosses li {
  display: grid;
  grid-template-columns: 1.1rem 1fr;
  gap: 0.55rem;
  align-items: start;
}
.ticks li::before {
  content: "→";
  color: var(--accent);
  font-weight: 700;
  line-height: 1.55;
}
.crosses li::before {
  content: "×";
  color: var(--action);
  font-weight: 700;
  line-height: 1.5;
}
.ticks em, .crosses em { font-style: italic; color: var(--ink); }

/* ── Kanji page anatomy ───────────────────────────────────────────────── */

.page-anatomy {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}
.steps li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.35rem 1rem;
  align-items: baseline;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}
.steps li:last-child { border-bottom: 0; padding-bottom: 0; }
.step-num {
  grid-row: 1 / span 2;
  font-family: var(--font-jp-serif);
  font-size: 1.7rem;
  color: var(--accent);
  opacity: 0.8;
  text-align: center;
}
.steps h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}
.steps p { color: var(--ink-2); font-size: 0.97rem; }
.steps b { color: var(--ink); font-weight: 620; }
.steps i { font-family: var(--font-display); }

@media (max-width: 900px) {
  .page-anatomy { grid-template-columns: 1fr; }
  .phone-col { justify-self: center; }
}

/* ── Real app capture ─────────────────────────────────────────────────── */

.phone-col { display: grid; gap: 0.9rem; position: sticky; top: 5.5rem; }

.app-capture {
  width: min(21rem, 100%);
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background: #0d1528;
  box-shadow: var(--shadow-lift);
}
.app-capture img { width: 100%; height: auto; }

.phone-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-3);
}

/* ── Two panels ───────────────────────────────────────────────────────── */

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 3vw, 2.1rem);
  box-shadow: var(--shadow-card);
}

.panel-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  margin-bottom: 1rem;
}

.panel h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}
.panel > p { color: var(--ink-2); }
.panel .ticks { margin-top: 1.3rem; font-size: 0.93rem; }

/* ── Feature grid ─────────────────────────────────────────────────────── */

.features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: clamp(1.1rem, 2.2vw, 1.8rem);
}
.features li {
  padding-top: 1.1rem;
  border-top: 2px solid var(--accent-line);
}
.features h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.features p { color: var(--ink-2); font-size: 0.95rem; }

/* ── Gallery ──────────────────────────────────────────────────────────── */

.gallery {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}
.gallery-hint { display: none; }
.gallery li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.cap {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.7rem 0.9rem 0.85rem;
  font-size: 0.88rem;
  color: var(--ink-3);
  border-top: 1px solid var(--line);
}
.cap b {
  font-size: 1.25rem;
  color: var(--ink);
  font-weight: 600;
  line-height: 1;
}

@media (max-width: 700px) {
  .gallery {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: min(82vw, 20rem);
    gap: 0.9rem;
    margin-inline: calc(clamp(1.1rem, 4vw, 2.5rem) * -1);
    padding-inline: clamp(1.1rem, 4vw, 2.5rem);
    padding-bottom: 0.75rem;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: inline mandatory;
    scrollbar-width: none;
  }
  .gallery::-webkit-scrollbar { display: none; }
  .gallery li { scroll-snap-align: start; }
  .gallery-hint {
    display: block;
    margin-top: 0.65rem;
    color: var(--ink-3);
    font-size: 0.82rem;
  }
}

/* ── Stats and books ──────────────────────────────────────────────────── */

.stats {
  list-style: none;
  padding: 0;
  margin: 0 0 clamp(2rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: clamp(0.7rem, 1.4vw, 1rem);
}
.stats li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.15rem 1.1rem 1.3rem;
  display: grid;
  gap: 0.2rem;
}
.stats b {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--accent);
  line-height: 1.1;
}
.stats span { font-size: 0.85rem; color: var(--ink-3); }

.books {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}
.book {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 1.1rem 1.2rem 1.25rem;
}
.book-year {
  display: block;
  font-family: var(--font-jp-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.book-name { font-size: 0.92rem; color: var(--ink-2); }
.book-state {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.book.done .book-state { color: var(--success); }
.book.wip .book-state { color: var(--action); }
.book.soon { opacity: 0.72; }
.book.soon .book-state { color: var(--ink-3); }

.fineprint {
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
  font-size: 0.92rem;
  color: var(--ink-3);
  max-width: 48rem;
}

/* ── Name section ─────────────────────────────────────────────────────── */

.name-section { text-align: center; }
.name-section .kicker { color: var(--ink-3); }
.name-section .big-body { margin-inline: auto; }
.name-section h2 i { font-family: var(--font-display); }

/* ── Waitlist ─────────────────────────────────────────────────────────── */

.signup {
  background: var(--surface);
  border-top: 1px solid var(--line);
  text-align: center;
}

#waitlist { margin-top: 2rem; }

.field {
  display: flex;
  gap: 0.6rem;
  max-width: 30rem;
  margin-inline: auto;
}
.field input {
  flex: 1 1 auto;
  min-width: 0;
  font: inherit;
  padding: 0.78rem 0.95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
}
.field input::placeholder { color: var(--ink-3); }
.field input:focus { border-color: var(--accent); }

.form-note {
  margin-top: 0.9rem;
  font-size: 0.83rem;
  color: var(--ink-3);
}

.form-msg {
  margin-top: 0.9rem;
  font-size: 0.95rem;
  font-weight: 600;
  min-height: 1.4rem;
}
.form-msg.ok { color: var(--success); }
.form-msg.err { color: var(--action); }

@media (max-width: 480px) {
  .field { flex-direction: column; }
}

/* ── Footer ───────────────────────────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper);
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
}
.footer-inner {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}
.footer-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}
.footer-mark span[aria-hidden] {
  font-family: var(--font-jp-serif);
  color: var(--accent);
  margin-right: 0.4rem;
}
.footer-tag { color: var(--ink-3); font-size: 0.9rem; margin-top: 0.2rem; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  font-size: 0.9rem;
}
.footer-nav a { color: var(--ink-2); text-decoration: none; }
.footer-nav a:hover { color: var(--ink); text-decoration: underline; }

.footer-legal {
  grid-column: 1 / -1;
  font-size: 0.8rem;
  color: var(--ink-3);
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
  max-width: 46rem;
}

@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; }
}

/* ── Motion ───────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ── 404 ──────────────────────────────────────────────────────────────── */

.notfound {
  display: grid;
  place-items: center;
  text-align: center;
  min-height: calc(100vh - 4rem);
  padding-block: clamp(3rem, 10vh, 6rem);
}
.notfound-kanji {
  font-family: var(--font-jp-serif);
  font-size: clamp(5rem, 22vw, 9rem);
  line-height: 1;
  color: var(--accent);
  opacity: 0.9;
}
.notfound-gloss {
  margin-top: 0.9rem;
  font-size: 0.95rem;
  color: var(--ink-3);
}
.notfound-gloss b { color: var(--ink-2); font-weight: 600; }
.notfound-gloss i { font-family: var(--font-display); }
.notfound h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 600;
  margin-top: clamp(1.5rem, 4vh, 2.5rem);
}
.notfound .big-body { margin-inline: auto; }
.notfound-cta { margin-top: 2rem; }