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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: #e8eef6;
  background: #070b12;
  font-family: "Segoe UI Variable", "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  line-height: 1.5;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

:root {
  --mint: #3ee0c6;
  --mint-2: #b8fff0;
  --ink: #e8eef6;
  --muted: #8aa0b5;
  --line: rgba(62, 224, 198, 0.18);
  --panel: #101826;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 80;
  padding: 10px 14px;
  background: var(--mint);
  color: #04110e;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: min(100% - 32px, 1180px);
  margin-inline: auto;
}

.promo {
  margin: 0;
  padding: 8px 16px;
  padding-top: calc(8px + env(safe-area-inset-top));
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--mint-2);
  background: #05080d;
  border-bottom: 1px solid var(--line);
  overflow-wrap: anywhere;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 11, 18, 0.82);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.header-bar,
.header-tools,
.logo {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 14px;
  min-width: 0;
}

.header-bar {
  min-height: 64px;
  justify-content: space-between;
}

.logo {
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.logo small {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.logo img {
  width: 28px;
  height: 28px;
}

.nav {
  display: none;
  flex-wrap: nowrap;
  justify-content: flex-end;
  gap: 12px;
  min-width: 0;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--mint-2);
}

.nav-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: transparent;
  display: grid;
  place-content: center;
  gap: 5px;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--mint-2);
}

.lang {
  position: relative;
}

.lang-btn,
.btn,
.chip {
  min-height: 44px;
  min-width: 44px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 0 16px;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 600;
}

.btn-mint {
  background: var(--mint);
  color: #04110e;
  border-color: var(--mint);
}

.btn-ghost {
  color: var(--mint-2);
}

.lang-menu {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 8px);
  margin: 0;
  padding: 8px;
  list-style: none;
  width: min(70vw, 220px);
  max-height: 280px;
  overflow: auto;
  background: #101826;
  border: 1px solid var(--line);
  z-index: 30;
}

.lang-menu li {
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  cursor: pointer;
}

.lang-menu li[aria-selected="true"],
.lang-menu li:hover,
.lang-menu li:focus-visible {
  background: rgba(62, 224, 198, 0.12);
}

.hero {
  overflow: hidden;
  background:
    radial-gradient(720px 320px at 88% 20%, rgba(62, 224, 198, 0.16), transparent 62%),
    #070b12;
}

.hero-inner {
  display: grid;
  gap: 20px;
  align-items: center;
  padding: 28px 0 32px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--mint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 12px;
}

h1,
h2,
h3 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1.14;
  max-width: min(18ch, 100%);
  overflow-wrap: anywhere;
}

.lead,
.section-lead {
  color: var(--muted);
  max-width: 56ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-card {
  border: 1px solid var(--line);
  background: #101826;
  padding: 22px;
  min-width: 0;
}

.hero-pair {
  margin: 0;
  font-size: 22px;
}

.hero-px {
  margin: 6px 0 10px;
  font-size: clamp(28px, 5vw, 40px);
  font-family: Georgia, serif;
  color: var(--mint-2);
}

.hero-liq {
  color: var(--muted);
}

.hero-liq strong {
  color: var(--ink);
}

.ticker {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: #05080d;
}

.ticker-track {
  display: flex;
  flex-wrap: nowrap;
  gap: 36px;
  width: max-content;
  padding: 10px 0;
  color: var(--mint-2);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  animation: ticker 90s linear infinite;
}

.ticker-item {
  white-space: nowrap;
}

.ticker-item .up {
  color: #34d399;
}

.ticker-item .down {
  color: #fb7185;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.trust {
  border-block: 1px solid var(--line);
  background: #0b111a;
}

.trust-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding: 28px 0;
}

.trust-n {
  margin: 0;
  color: var(--mint-2);
  font-size: 22px;
}

.trust-t {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.board,
.how,
.versus,
.faq,
.scenes,
.checklist,
.minute {
  padding: 64px 0;
}

.chips-label {
  margin: 22px 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.chips,
.sides {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.chip.is-on,
.heat-cell.is-on {
  border-color: var(--mint);
  color: var(--mint-2);
}

.board-grid {
  display: grid;
  gap: 28px;
  margin-top: 20px;
}

.heat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.heat-cell {
  text-align: start;
  background: var(--panel);
  border: 1px solid var(--line);
  color: inherit;
  padding: 12px;
  cursor: pointer;
  min-width: 0;
  min-height: 72px;
}

.heat-cell i {
  display: block;
  height: 3px;
  margin-top: 8px;
  background: var(--mint);
}

.estimator {
  border: 1px solid var(--line);
  background: #101826;
  padding: 22px;
}

.est-name {
  font-size: 28px;
  font-family: Georgia, serif;
  margin: 0 0 4px;
}

.est-px {
  margin: 0;
  font-size: clamp(32px, 6vw, 48px);
  font-family: Georgia, serif;
  color: var(--mint-2);
}

.est-chg {
  margin: 0 0 14px;
}

.up {
  color: #34d399;
}

.down {
  color: #fb7185;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
}

input {
  min-height: 44px;
  border: 1px solid var(--line);
  background: #070b12;
  color: var(--ink);
  padding: 10px 12px;
  width: 100%;
  font-size: 16px;
}

.est-dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0 0 12px;
}

.est-dl div {
  border: 1px solid var(--line);
  padding: 10px 12px;
  min-width: 0;
}

.est-dl dt {
  color: var(--muted);
  font-size: 12px;
}

.est-dl dd {
  margin: 4px 0 0;
  font-size: 16px;
}

.est-math,
.est-note,
.legal,
.muted {
  color: var(--muted);
  font-size: 13px;
}

.dwell-grid,
.scene-grid,
.check-grid,
.vs-grid,
.steps {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.scene-card,
.check-grid article,
.vs-grid article,
.steps li {
  background: #101826;
  border: 1px solid var(--line);
  padding: 18px;
  min-width: 0;
}

.scene-brand {
  margin: 0;
  font-family: Georgia, serif;
  font-size: 22px;
}

.scene-face,
.scene-out {
  color: var(--muted);
  margin: 6px 0 12px;
}

.scene-out strong {
  color: var(--mint-2);
}

.check-grid ul,
.vs-grid ul,
.steps {
  list-style: none;
  padding: 0;
}

.check-grid ul {
  margin: 12px 0 0;
  display: grid;
  gap: 8px;
}

.check-grid li,
.vs-grid li {
  border: 1px solid var(--line);
  padding: 12px 14px;
}

.check-grid article.is-mute,
.vs-grid article.is-mute {
  opacity: 0.82;
  border-color: var(--line);
}

.vs-grid article:first-child {
  border-color: var(--mint);
}

.steps {
  margin: 28px 0 0;
}

.steps span {
  color: var(--mint);
  letter-spacing: 0.14em;
  font-size: 12px;
}

.min-prog {
  margin: 0 0 8px;
  color: var(--mint-2);
  font-size: 14px;
}

.min-rail {
  height: 6px;
  background: #070b12;
  border: 1px solid var(--line);
  margin-bottom: 14px;
}

.min-rail i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--mint);
  transition: width 0.25s ease;
}

.minute-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.minute-item {
  border: 1px solid var(--line);
  background: #101826;
  padding: 12px 14px;
  min-height: 44px;
}

.minute-item.is-done {
  border-color: var(--mint);
  color: var(--mint-2);
}

.min-done {
  margin: 12px 0 0;
  color: var(--mint-2);
}

.ladder {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.ladder-row {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 48px;
  text-align: start;
  background: #101826;
  border: 1px solid var(--line);
  color: inherit;
  padding: 10px 12px;
  cursor: pointer;
}

.ladder-row.is-on,
.ladder-row:hover {
  border-color: var(--mint);
}

.ladder-row em {
  color: var(--muted);
  font-style: normal;
  font-size: 12px;
}

.room-track {
  height: 8px;
  background: #070b12;
  border: 1px solid var(--line);
  margin: 6px 0 8px;
}

.room-fill {
  display: block;
  height: 100%;
  background: var(--mint);
  transition: width 0.25s ease;
}

.room-fill.is-thin {
  background: #fb7185;
}

.last-box {
  border: 1px solid var(--line);
  padding: 10px 12px;
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 12px;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.site-footer {
  padding: 28px 0 calc(28px + env(safe-area-inset-bottom));
  color: var(--muted);
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .trust-row {
    grid-template-columns: repeat(4, 1fr);
  }

  .heat {
    grid-template-columns: repeat(4, 1fr);
  }

  .board-grid,
  .hero-inner {
    grid-template-columns: 1.35fr 1fr;
  }

  .dwell-grid,
  .vs-grid,
  .steps,
  .scene-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .estimator {
    position: sticky;
    top: 88px;
    align-self: start;
  }

  .hero-inner {
    padding: 36px 0 40px;
  }
}

@media (max-width: 1100px) {
  .nav {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .nav.is-open {
    display: grid;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #0b111a;
    padding: 12px 16px 18px;
    border-bottom: 1px solid var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .ticker-track {
    animation: none;
  }
}

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