@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500;600&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700&display=swap");

:root {
  --paper: #f4f1e8;
  --paper-deep: #ebe6d8;
  --ink: #17272d;
  --muted: #5f6e70;
  --line: rgba(23, 39, 45, 0.14);
  --surface: rgba(255, 255, 255, 0.78);
  --red: #dc4b35;
  --red-dark: #ad2d20;
  --aqua: #159e9b;
  --aqua-soft: #dff4f1;
  --yellow: #f5c84b;
  --shadow: 0 20px 70px rgba(28, 49, 54, 0.12);
  --mono: "IBM Plex Mono", monospace;
  --sans: "Manrope", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 39, 45, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 39, 45, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 12% 8%, rgba(21, 158, 155, 0.14), transparent 31rem),
    radial-gradient(circle at 86% 20%, rgba(220, 75, 53, 0.1), transparent 30rem),
    var(--paper);
  background-size: 36px 36px, 36px 36px, auto, auto, auto;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.topline {
  border-bottom: 1px solid var(--line);
  background: rgba(244, 241, 232, 0.9);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand img {
  width: 37px;
  height: 37px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-copy strong {
  font-size: 16px;
  letter-spacing: 0.08em;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--red);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 9px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
}

.nav-links .lang {
  border: 1px solid var(--line);
}

.statusbar {
  border-bottom: 1px solid var(--line);
  background: var(--ink);
  color: #f8f4e8;
}

.statusbar .shell {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.06em;
}

.live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.live::before {
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 50%;
  background: #4bdfaf;
  box-shadow: 0 0 0 5px rgba(75, 223, 175, 0.12);
}

.hero {
  padding: 78px 0 54px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(460px, 1.05fr);
  align-items: center;
  gap: 64px;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--red);
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-kicker::before {
  width: 30px;
  height: 2px;
  content: "";
  background: currentColor;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin: 23px 0 22px;
  font-size: clamp(42px, 5.3vw, 67px);
  line-height: 1.03;
  letter-spacing: -0.055em;
}

h1 em {
  color: var(--red);
  font-style: normal;
}

.lead {
  max-width: 650px;
  margin-bottom: 30px;
  color: #46585b;
  font-size: 17px;
  line-height: 1.78;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
}

.button {
  min-height: 48px;
  padding: 0 19px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--ink);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #fff;
  border-color: var(--red);
  background: var(--red);
  box-shadow: 0 10px 24px rgba(220, 75, 53, 0.22);
}

.button.primary:hover {
  background: var(--red-dark);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.66);
}

.micro-note {
  margin: 14px 0 0;
  color: var(--muted);
  font: 500 11px/1.6 var(--mono);
}

.screen-wrap {
  position: relative;
}

.screen-wrap::before {
  width: 170px;
  height: 170px;
  position: absolute;
  top: -46px;
  right: -28px;
  content: "";
  border-radius: 50%;
  background: var(--yellow);
  opacity: 0.8;
  z-index: -1;
}

.screen {
  padding: 8px;
  border: 1px solid rgba(23, 39, 45, 0.22);
  border-radius: 18px;
  background: #26363a;
  box-shadow: var(--shadow);
  transform: rotate(1deg);
}

.screen-bar {
  height: 29px;
  padding: 0 9px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #dce8e5;
  font: 500 9px/1 var(--mono);
  letter-spacing: 0.05em;
}

.dots {
  display: flex;
  gap: 5px;
}

.dots i {
  width: 7px;
  height: 7px;
  display: block;
  border-radius: 50%;
  background: #708083;
}

.dots i:first-child {
  background: var(--red);
}

.screen img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.floating-card {
  width: min(265px, 65%);
  padding: 14px;
  position: absolute;
  left: -26px;
  bottom: -35px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 16px 50px rgba(23, 39, 45, 0.18);
}

.floating-card img {
  width: 51px;
  height: 51px;
  border-radius: 12px;
  object-fit: cover;
}

.floating-card strong {
  display: block;
  font-size: 12px;
}

.floating-card span {
  display: block;
  margin-top: 4px;
  color: var(--aqua);
  font: 600 10px/1.4 var(--mono);
}

.proof {
  padding: 38px 0 82px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 15px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.5);
}

.proof-item {
  padding: 20px;
  border-right: 1px solid var(--line);
}

.proof-item:last-child {
  border-right: 0;
}

.proof-item b {
  display: block;
  font: 600 11px/1.2 var(--mono);
  color: var(--aqua);
}

.proof-item span {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
}

.section {
  padding: 88px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 40px;
  margin-bottom: 38px;
}

.section-heading h2 {
  max-width: 650px;
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.section-heading p {
  max-width: 560px;
  margin: 4px 0 0 auto;
  color: var(--muted);
}

.architecture {
  display: grid;
  grid-template-columns: 1fr 90px 1fr;
  align-items: stretch;
  gap: 20px;
}

.arch-card {
  min-height: 290px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  position: relative;
  overflow: hidden;
}

.arch-card::after {
  position: absolute;
  right: -18px;
  bottom: -48px;
  color: rgba(23, 39, 45, 0.045);
  font: 800 120px/1 var(--mono);
}

.arch-card.body::after {
  content: "01";
}

.arch-card.brain::after {
  content: "02";
}

.arch-label {
  color: var(--red);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.1em;
}

.arch-card h3 {
  margin: 18px 0 12px;
  font-size: 25px;
  letter-spacing: -0.03em;
}

.arch-card p {
  color: var(--muted);
  font-size: 14px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 22px;
}

.tags span {
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  font: 600 10px/1 var(--mono);
}

.connector {
  position: relative;
  display: grid;
  place-items: center;
  color: var(--red);
  font: 700 10px/1.4 var(--mono);
  text-align: center;
}

.connector::before {
  width: 100%;
  height: 1px;
  content: "";
  position: absolute;
  background: var(--red);
}

.connector span {
  padding: 8px 5px;
  position: relative;
  background: var(--paper);
  writing-mode: vertical-rl;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.feature {
  min-height: 220px;
  padding: 24px;
  border-top: 3px solid var(--ink);
  background: rgba(255, 255, 255, 0.58);
}

.feature:nth-child(2),
.feature:nth-child(5) {
  border-color: var(--red);
}

.feature:nth-child(3),
.feature:nth-child(6) {
  border-color: var(--aqua);
}

.feature b {
  color: var(--red);
  font: 600 10px/1 var(--mono);
}

.feature h3 {
  margin: 22px 0 10px;
  font-size: 19px;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.launch-panel {
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  border-radius: 22px;
  color: #fff;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.06), transparent 45%),
    var(--ink);
  box-shadow: var(--shadow);
}

.launch-panel h2 {
  margin: 10px 0 10px;
  font-size: clamp(29px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.launch-panel p {
  max-width: 670px;
  margin: 0;
  color: #bdcbca;
  font-size: 14px;
}

.launch-panel .section-kicker {
  color: #5fd8c7;
}

.launch-panel .button.secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.06);
}

.legal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.legal {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.legal b {
  display: block;
  margin-bottom: 7px;
  font-size: 13px;
}

.legal p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

footer {
  padding: 34px 0 48px;
  border-top: 1px solid var(--line);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.footer-row p {
  max-width: 670px;
  margin: 0;
  color: var(--muted);
  font-size: 11px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
}

.footer-links a {
  font: 600 11px/1.5 var(--mono);
}

@media (max-width: 920px) {
  .hero-grid,
  .section-heading {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 58px;
  }

  .section-heading p {
    margin-left: 0;
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof-item:nth-child(2) {
    border-right: 0;
  }

  .proof-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .architecture {
    grid-template-columns: 1fr;
  }

  .connector {
    min-height: 58px;
  }

  .connector::before {
    width: 1px;
    height: 100%;
  }

  .connector span {
    writing-mode: horizontal-tb;
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .launch-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 28px, 1180px);
  }

  .nav {
    min-height: 62px;
  }

  .nav-links a:not(.lang) {
    display: none;
  }

  .statusbar .shell {
    padding: 9px 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .hero {
    padding-top: 54px;
  }

  h1 {
    font-size: 39px;
  }

  .lead {
    font-size: 15px;
  }

  .button {
    width: 100%;
  }

  .screen {
    transform: none;
  }

  .screen-wrap::before {
    right: 0;
  }

  .floating-card {
    left: 14px;
  }

  .proof {
    padding-top: 58px;
  }

  .proof-grid,
  .features,
  .legal-grid {
    grid-template-columns: 1fr;
  }

  .proof-item,
  .proof-item:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-item:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 66px 0;
  }

  .arch-card {
    padding: 24px;
  }

  .launch-panel {
    padding: 28px 22px;
  }

  .footer-row {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy,
  .screen-wrap,
  .proof-grid {
    animation: rise 620ms ease both;
  }

  .screen-wrap {
    animation-delay: 100ms;
  }

  .proof-grid {
    animation-delay: 180ms;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(15px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}