/* ============================================================
   KAGE — Japanese editorial theme
   washi paper + sumi ink + shu crimson
   ============================================================ */

:root {
  --paper: #f4efe4;
  --paper-2: #ece5d4;
  --ink: #161210;
  --ink-2: #26201c;
  --crimson: #c3272b;
  --crimson-2: #a01f23;
  --gold: #b08d3e;
  --line: rgba(22, 18, 16, 0.14);
  --line-dark: rgba(244, 239, 228, 0.14);
  --serif: "Shippori Mincho", "Times New Roman", serif;
  --sans: "Zen Kaku Gothic New", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--crimson); color: var(--paper); }

.crimson { color: var(--crimson); }

/* ---------- grain ---------- */
.grain {
  position: fixed; inset: -50%;
  width: 200%; height: 200%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 300 300' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 7s steps(10) infinite;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-3%, 2%); }
  40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -2%); }
  80% { transform: translate(3%, 3%); }
}

/* ---------- progress ---------- */
.progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 3px; z-index: 10000;
}
.progress span {
  display: block; height: 100%; width: 100%;
  background: var(--crimson);
  transform-origin: left center;
  transform: scaleX(0);
}

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 18px; left: 50%;
  translate: -50% 0;
  z-index: 9999;
  display: flex; align-items: center; gap: 28px;
  padding: 10px 12px 10px 20px;
  border-radius: 999px;
  background: rgba(22, 18, 16, 0.88);
  backdrop-filter: blur(12px);
  color: var(--paper);
  border: 1px solid rgba(244, 239, 228, 0.1);
  transition: translate 0.45s cubic-bezier(.22,1,.36,1), opacity .3s;
}
.nav.is-hidden { translate: -50% -140%; }
.nav__brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: inherit;
}
.nav__mon {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  background: var(--crimson);
  color: var(--paper);
  font-family: var(--serif);
  font-weight: 800; font-size: 19px;
  border-radius: 8px;
}
.nav__name {
  font-family: var(--serif);
  font-weight: 800; letter-spacing: 0.22em; font-size: 15px;
}
.nav__links { display: flex; gap: 22px; }
.nav__links a {
  color: rgba(244, 239, 228, 0.75);
  text-decoration: none;
  font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  transition: color .25s;
}
.nav__links a:hover { color: var(--paper); }

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: 12px 26px;
  border-radius: 999px;
  text-decoration: none;
  font-family: var(--sans);
  font-weight: 700; font-size: 14px; letter-spacing: 0.04em;
  cursor: pointer;
  isolation: isolate;
}
.btn--primary { background: var(--crimson); color: var(--paper); }
.btn--big { padding: 20px 44px; font-size: 17px; }
.btn__ink {
  position: absolute; inset: 0; z-index: -1;
  background: var(--ink);
  border-radius: inherit;
  transform: translateY(101%);
  transition: transform .45s cubic-bezier(.22,1,.36,1);
}
.btn:hover .btn__ink { transform: translateY(0); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  background: var(--paper);
  min-height: 100svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: flex-end;
  text-align: center;
  padding: 120px 24px 96px;
  overflow: hidden;
}
.hero__enso {
  position: absolute;
  top: 36%; left: 50%;
  width: min(72vmin, 640px);
  translate: -50% -54%;
  color: var(--crimson);
  opacity: 0.9;
  z-index: 0;
}
.hero__enso svg { width: 100%; height: auto; display: block; }
.hero__kanji {
  position: absolute;
  top: 36%; left: 50%;
  translate: -50% -54%;
  font-family: var(--serif);
  font-weight: 800;
  font-size: min(38vmin, 330px);
  color: var(--ink);
  opacity: 0.08;
  z-index: 0;
  user-select: none;
}
.hero__img {
  position: absolute;
  top: 36%; left: 50%;
  width: min(58vmin, 500px);
  translate: -50% -54%;
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: multiply;
  filter: brightness(1.08) contrast(1.06);
}
.hero__title {
  position: relative; z-index: 2;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(54px, 10vw, 134px);
  line-height: 0.98;
  letter-spacing: -0.015em;
}
.hero__line { display: block; overflow: hidden; }
.hero__line > span { display: inline-block; }
.hero__dot { color: var(--crimson); font-style: normal; }
.char { display: inline-block; will-change: transform; }
.hero__sub {
  position: relative; z-index: 2;
  margin-top: 28px;
  font-size: clamp(15px, 1.6vw, 19px);
  color: rgba(22, 18, 16, 0.72);
}
.hero__meta {
  position: relative; z-index: 2;
  margin-top: 34px;
  display: flex; flex-wrap: wrap; gap: 14px;
  align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.14em;
  color: rgba(22, 18, 16, 0.55);
}
.hero__meta-sep { color: var(--crimson); font-size: 7px; }
.hero__ca {
  position: relative; z-index: 2;
  margin-top: 22px;
  display: inline-flex; align-items: center; gap: 12px;
  padding: 10px 22px;
  border: 1px dashed rgba(195, 39, 43, 0.55);
  border-radius: 999px;
  background: rgba(195, 39, 43, 0.06);
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.22em;
  animation: fadeUp 0.8s 1.7s cubic-bezier(.22,1,.36,1) both;
}
.ca__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--crimson);
  animation: pulse-ca 1.8s ease-out infinite;
}
@keyframes pulse-ca {
  0% { box-shadow: 0 0 0 0 rgba(195,39,43,0.5); }
  100% { box-shadow: 0 0 0 10px rgba(195,39,43,0); }
}
.ca__label { color: var(--crimson); font-weight: 700; }
.ca__value { color: rgba(22,18,16,0.65); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__scrollcue {
  position: absolute; bottom: 28px; left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  color: rgba(22, 18, 16, 0.5);
  z-index: 2;
}
.hero__arrow { display: inline-block; animation: bob 1.6s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(5px); } }

/* ---------- marquee ---------- */
.marquee {
  overflow: hidden;
  white-space: nowrap;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.marquee--crimson { background: var(--crimson); color: var(--paper); border: none; }
.marquee__track {
  display: inline-flex; align-items: center; gap: 42px;
  will-change: transform;
  padding-right: 42px;
}
.marquee__track span {
  font-family: var(--serif); font-weight: 700;
  font-size: 22px; letter-spacing: 0.14em;
}
.marquee__track i { font-style: normal; font-size: 9px; opacity: 0.7; }

/* ---------- ink sections ---------- */
.section--ink {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- manifesto ---------- */
.manifesto {
  padding: clamp(110px, 16vw, 210px) 24px;
  text-align: center;
}
.manifesto__label {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.3em;
  color: var(--crimson);
  margin-bottom: 42px;
}
.manifesto__label--dark { color: var(--crimson); }
.manifesto__text {
  max-width: 1050px; margin: 0 auto;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 56px);
  line-height: 1.32;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}
.manifesto__text .word { opacity: 0.12; display: inline-block; }

/* ---------- statement ---------- */
.statement {
  min-height: 100svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 100px 24px;
  position: relative;
}
.statement__label {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.3em;
  color: rgba(22,18,16,0.5);
  margin-bottom: 36px;
}
.statement__title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(42px, 7.4vw, 104px);
  line-height: 1.08;
}
.statement__stroke {
  width: min(680px, 80vw);
  margin-top: 38px;
  color: var(--crimson);
}
.statement__stroke svg { width: 100%; height: auto; display: block; }

/* ---------- features ---------- */
.features {
  padding: clamp(60px, 9vw, 140px) clamp(20px, 6vw, 90px);
  display: flex; flex-direction: column;
  gap: clamp(110px, 14vw, 220px);
  background:
    linear-gradient(var(--paper), var(--paper)) padding-box;
}
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 7vw, 110px);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.feature--flip .feature__mock { order: 2; }
.feature--flip .feature__copy { order: 1; }

.feature__mock {
  position: relative;
  display: grid; place-items: center;
  padding: clamp(28px, 4vw, 56px);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 24px;
  min-height: 380px;
}
.feature__seal {
  position: absolute;
  top: 18px; right: 18px;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  background: var(--crimson);
  color: var(--paper);
  border-radius: 10px;
  font-family: var(--serif);
  font-weight: 800; font-size: 26px;
  box-shadow: 4px 4px 0 rgba(22,18,16,0.2);
  transform: rotate(6deg);
}
.feature__no {
  display: flex; align-items: baseline; gap: 12px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: 30px;
  color: var(--crimson);
}
.feature__no em {
  font-family: var(--mono);
  font-style: normal; font-size: 13px; letter-spacing: 0.2em;
  color: rgba(22,18,16,0.45);
}
.feature__title {
  margin-top: 14px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.12;
}
.feature__text {
  margin-top: 18px;
  max-width: 480px;
  font-size: 16.5px;
  color: rgba(22,18,16,0.72);
}

/* chips */
.chips {
  margin-top: 24px;
  display: flex; flex-wrap: wrap; gap: 10px;
  list-style: none;
}
.chips li {
  padding: 7px 15px;
  border: 1px solid rgba(22,18,16,0.25);
  border-radius: 999px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em;
  background: var(--paper);
}
.chips li::before { content: "● "; color: var(--crimson); font-size: 8px; vertical-align: 2px; }
.chips--dark li { border-color: rgba(244,239,228,0.25); background: transparent; color: var(--paper); }

/* ---------- UI mockups ---------- */
.ui {
  width: min(360px, 100%);
  background: var(--ink);
  color: var(--paper);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 30px 60px -30px rgba(22,18,16,0.45);
  border: 1px solid rgba(244,239,228,0.08);
  font-size: 14px;
}
.ui__bar { display: flex; gap: 6px; margin-bottom: 18px; }
.ui__bar i {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(244,239,228,0.18);
}
.ui__bar i:first-child { background: var(--crimson); }
.ui__hello {
  font-family: var(--serif);
  font-weight: 700; font-size: 20px;
}
.ui__hint { color: rgba(244,239,228,0.55); font-size: 12.5px; margin-top: 4px; }
.ui__label {
  display: block;
  margin: 18px 0 8px;
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.22em;
  color: rgba(244,239,228,0.5);
}
.ui__input {
  padding: 12px 14px;
  border: 1px solid rgba(244,239,228,0.16);
  border-radius: 10px;
  letter-spacing: 3px;
  color: rgba(244,239,228,0.8);
}
.ui__btn {
  margin-top: 14px;
  width: 100%;
  padding: 11px 18px;
  border: none; border-radius: 999px;
  background: var(--crimson); color: var(--paper);
  font-family: var(--sans); font-weight: 700; font-size: 14px;
  cursor: pointer;
  transition: background .25s;
}
.ui__btn:hover { background: var(--crimson-2); }
.ui__btn--ghost {
  background: transparent;
  border: 1px solid rgba(244,239,228,0.25);
}
.ui__btn--ghost:hover { background: rgba(244,239,228,0.08); }
.ui__row { display: flex; gap: 10px; }
.ui__row .ui__btn { width: auto; flex: 1; }
.ui__foot {
  margin-top: 14px; text-align: center;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em;
  color: rgba(244,239,228,0.4);
}
.ui__qr {
  width: 150px; height: 150px;
  margin: 4px auto 10px;
  background: var(--paper);
  border-radius: 10px;
  padding: 10px;
}
.ui__qr svg { width: 100%; height: 100%; display: block; fill: var(--ink); }
.ui__addr {
  text-align: center;
  font-family: var(--mono); font-size: 13px;
  color: rgba(244,239,228,0.85);
  margin-bottom: 8px;
}
.ui__line {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 2px;
  border-bottom: 1px dashed rgba(244,239,228,0.14);
  color: rgba(244,239,228,0.6);
  font-size: 13px;
}
.ui__line b { color: var(--paper); font-family: var(--mono); font-weight: 500; }
.ui__line--total { border-bottom: none; }
.ui__line--total b { color: var(--crimson); font-weight: 700; }
.ui__tx {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px dashed rgba(244,239,228,0.12);
}
.ui__tx:last-child { border-bottom: none; }
.ui__tx > div { flex: 1; line-height: 1.3; }
.ui__tx small { color: rgba(244,239,228,0.45); font-size: 11px; }
.ui__tx > b { font-family: var(--mono); font-weight: 500; font-size: 13px; }
.ui__tx .in, .ui .in { color: #7fb069; }
.ui__dir {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(244,239,228,0.08);
  font-size: 14px;
}
.ui__dir--in { color: #7fb069; }
.ui__node {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  border: 1px solid rgba(244,239,228,0.16);
  border-radius: 10px;
  font-family: var(--mono); font-size: 12.5px;
  margin-bottom: 6px;
}
.ui__pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: #7fb069;
  flex: none;
  animation: pulse 1.8s ease-out infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(127,176,105,0.55); }
  100% { box-shadow: 0 0 0 10px rgba(127,176,105,0); }
}
.ui__tabs {
  display: flex; gap: 6px;
  background: rgba(244,239,228,0.06);
  padding: 5px; border-radius: 999px;
  margin-bottom: 6px;
}
.ui__tabs span {
  flex: 1; text-align: center;
  padding: 8px 0;
  border-radius: 999px;
  font-size: 12.5px; font-weight: 700;
  color: rgba(244,239,228,0.55);
}
.ui__tabs .is-active { background: var(--crimson); color: var(--paper); }
.ui__swap {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px;
  border: 1px solid rgba(244,239,228,0.16);
  border-radius: 12px;
}
.ui__swap b { font-family: var(--mono); font-size: 20px; font-weight: 500; }
.ui__swap span {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  padding: 5px 10px;
  background: rgba(244,239,228,0.08);
  border-radius: 999px;
}
.ui__down {
  text-align: center;
  margin: 8px 0;
  color: var(--crimson);
  font-size: 18px;
}
.ui__tag {
  font-style: normal;
  color: var(--crimson);
  margin-left: 8px;
}
.ui__live {
  margin-top: 14px;
  display: flex; align-items: center; gap: 8px; justify-content: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  color: rgba(244,239,228,0.55);
}

/* ---------- bridge ---------- */
.bridge {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(40px, 7vw, 100px);
  align-items: center;
  padding: clamp(100px, 13vw, 180px) clamp(24px, 7vw, 110px);
}
.bridge .manifesto__label { text-align: left; margin-bottom: 26px; }
.bridge__title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(40px, 5.6vw, 76px);
  line-height: 1.06;
}
.bridge__text {
  margin-top: 22px;
  max-width: 460px;
  color: rgba(244,239,228,0.66);
  font-size: 16.5px;
}
.bridge__mock { display: grid; place-items: center; }

/* ---------- FAQ ---------- */
.faq {
  padding: clamp(90px, 12vw, 170px) clamp(24px, 7vw, 110px);
  max-width: 1280px; margin: 0 auto;
}
.faq__head {
  display: flex; align-items: center; gap: clamp(28px, 5vw, 70px);
  margin-bottom: clamp(50px, 7vw, 90px);
}
.faq__giant {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(110px, 16vw, 230px);
  line-height: 0.9;
  color: var(--crimson);
}
.faq__headcopy .manifesto__label { text-align: left; margin-bottom: 18px; }
.faq__title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(34px, 4.6vw, 62px);
  line-height: 1.1;
}
.faq__list { border-top: 1px solid var(--line); }
.qa { border-bottom: 1px solid var(--line); }
.qa summary {
  display: flex; align-items: baseline; gap: clamp(16px, 3vw, 40px);
  padding: 26px 4px;
  cursor: pointer;
  list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa__no {
  font-family: var(--mono);
  font-size: 13px; color: var(--crimson);
}
.qa__q {
  flex: 1;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 28px);
}
.qa__mark {
  font-family: var(--serif);
  font-size: 26px;
  color: var(--crimson);
  transition: transform .35s cubic-bezier(.22,1,.36,1);
}
.qa[open] .qa__mark { transform: rotate(45deg); }
.qa__a { overflow: hidden; }
.qa__a p {
  padding: 0 4px 28px calc(13px + clamp(16px, 3vw, 40px) + 14px);
  max-width: 760px;
  color: rgba(22,18,16,0.7);
  font-size: 16px;
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  text-align: center;
  padding: clamp(120px, 16vw, 220px) 24px;
  overflow: hidden;
}
.cta__kanji {
  position: absolute;
  top: 50%; left: 50%;
  translate: -50% -50%;
  font-family: var(--serif);
  font-weight: 800;
  font-size: min(60vmin, 460px);
  color: rgba(244,239,228,0.045);
  user-select: none;
}
.cta__title {
  position: relative;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(44px, 7vw, 96px);
  line-height: 1.08;
  margin-bottom: 44px;
}
.cta__note {
  position: relative;
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.14em;
  color: rgba(244,239,228,0.45);
}

/* ---------- footer ---------- */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 70px 0 28px;
  border-top: 1px solid var(--line-dark);
  overflow: hidden;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  padding: 0 clamp(24px, 7vw, 110px) 70px;
  max-width: 1280px; margin: 0 auto;
}
.footer__cols h4 {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.26em;
  color: rgba(244,239,228,0.45);
  margin-bottom: 16px;
}
.footer__cols a {
  display: block;
  color: rgba(244,239,228,0.8);
  text-decoration: none;
  font-size: 14.5px;
  padding: 4px 0;
  transition: color .2s, transform .2s;
}
.footer__cols a:hover { color: var(--crimson); transform: translateX(4px); }
.footer__status {
  display: flex; align-items: center; gap: 10px;
  font-size: 14.5px;
}
.footer__giant {
  white-space: nowrap;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(90px, 17vw, 240px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(244,239,228,0.22);
  user-select: none;
}
.footer__giant span { display: inline-block; will-change: transform; }
.footer__fine {
  text-align: center;
  margin-top: 34px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.1em;
  color: rgba(244,239,228,0.35);
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav { gap: 16px; padding: 8px 10px 8px 16px; width: calc(100% - 32px); justify-content: space-between; }
  .nav__links { display: none; }
  .feature, .bridge { grid-template-columns: 1fr; }
  .feature--flip .feature__mock { order: 0; }
  .feature--flip .feature__copy { order: 1; }
  .faq__head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .grain, .hero__arrow, .ui__pulse { animation: none !important; }
}