:root {
  --ink: #10212b;
  --muted: #5c6c74;
  --paper: #f8fbfb;
  --panel: #ffffff;
  --line: #d9e5e5;
  --cyan: #08a8b8;
  --amber: #d4872f;
  --green: #2e8f6f;
  --graphite: #18252c;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 54px);
  color: #fff;
  background: rgba(9, 24, 31, 0.68);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
}

.brand,
.site-header nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand {
  text-decoration: none;
  font-weight: 800;
}

.brand-logo {
  width: 32px;
  height: 32px;
  display: block;
  border-radius: 8px;
  object-fit: contain;
}

.site-header nav a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  text-decoration: none;
}

.site-header nav a:hover {
  color: #fff;
}

.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: #091820;
}

.hero-molecule-canvas,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-molecule-canvas {
  display: block;
  border: 0;
  border-radius: 0;
  background: #071217;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(4, 15, 20, 0.88) 0%, rgba(9, 24, 31, 0.72) 38%, rgba(9, 24, 31, 0.12) 84%),
    linear-gradient(180deg, rgba(6, 17, 23, 0.1), rgba(6, 17, 23, 0.46));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(760px, 100%);
  padding: 132px clamp(20px, 6vw, 84px) 80px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: #68dce4;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(46px, 7vw, 92px);
  line-height: 0.96;
  letter-spacing: 0;
}

h1 span {
  display: block;
  color: #ffca7a;
  font-size: 0.58em;
}

.lead {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary,
.secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
}

.primary {
  color: #061216;
  background: #79eff6;
}

.secondary {
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.price-card {
  position: absolute;
  z-index: 4;
  right: clamp(20px, 6vw, 92px);
  top: 150px;
  width: min(320px, calc(100% - 40px));
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  color: #fff;
  background: rgba(7, 18, 23, 0.72);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(14px);
}

.price-card span {
  color: #79eff6;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.price-card strong {
  display: block;
  margin: 8px 0;
  color: #ffca7a;
  font-size: 44px;
  line-height: 1;
}

.price-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.molecule-stage {
  position: absolute;
  z-index: 3;
  right: clamp(20px, 7vw, 120px);
  bottom: 58px;
  width: 280px;
  height: 180px;
  opacity: 0.92;
  animation: float 5.5s ease-in-out infinite;
}

.ring {
  position: absolute;
  left: 10px;
  top: 24px;
  width: 116px;
  height: 116px;
  border: 3px solid #83f3fa;
  transform: rotate(30deg);
  clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0 50%);
}

.ring span,
.chain i,
.oxygen {
  position: absolute;
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffbf6b;
  box-shadow: 0 0 24px rgba(255, 191, 107, 0.65);
}

.ring span:nth-child(1) { left: 21px; top: 2px; }
.ring span:nth-child(2) { right: 21px; top: 2px; }
.ring span:nth-child(3) { right: -5px; top: 48px; }
.ring span:nth-child(4) { right: 21px; bottom: 2px; }
.ring span:nth-child(5) { left: 21px; bottom: 2px; }
.ring span:nth-child(6) { left: -5px; top: 48px; }

.chain {
  position: absolute;
  left: 126px;
  top: 82px;
  width: 140px;
  height: 34px;
  border-top: 3px solid #83f3fa;
  transform: rotate(-8deg);
}

.chain i:nth-child(1) { left: 0; top: -10px; background: #f8fbfb; }
.chain i:nth-child(2) { left: 42px; top: -10px; }
.chain i:nth-child(3) { left: 84px; top: -10px; background: #f8fbfb; }
.chain i:nth-child(4) { left: 126px; top: -10px; }

.oxygen {
  left: 136px;
  top: 38px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #061216;
  font-weight: 900;
  background: #ef5a4e;
}

.ticker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}

.ticker span {
  min-height: 74px;
  display: grid;
  place-items: center;
  padding: 16px;
  background: #fff;
  color: var(--graphite);
  font-weight: 800;
  text-align: center;
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 84px 0;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 56px;
  align-items: start;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.notice {
  padding: 14px 16px;
  border-left: 4px solid var(--amber);
  background: #fff6e9;
  color: #5d3a10;
}

.commercial,
.supply,
.safety,
.contact {
  border-top: 1px solid var(--line);
}

.commercial {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 42px;
  align-items: start;
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--muted);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
}

caption {
  padding: 18px 20px;
  color: var(--graphite);
  font-size: 20px;
  font-weight: 900;
  text-align: left;
}

th,
td {
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

thead th,
tbody th {
  color: var(--graphite);
  background: #f2f8f8;
  font-weight: 900;
}

td {
  color: var(--muted);
}

.supply-grid,
.safety-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.supply-grid article,
.safety-grid article {
  min-height: 116px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.supply-grid span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.supply-grid strong,
.safety-grid article {
  color: var(--graphite);
  font-size: 19px;
  font-weight: 900;
}

.safety-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 22px;
}

.safety-grid article {
  min-height: 92px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.7fr);
  gap: 40px;
  align-items: center;
}

.contact-card {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-card a {
  display: block;
  padding: 16px 18px;
  border-radius: 6px;
  color: #061216;
  background: #79eff6;
  font-weight: 900;
  text-decoration: none;
}

.contact-card a + a {
  color: #fff;
  background: var(--graphite);
}

.fact-grid,
.intent-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.fact-grid article,
.intent-grid article {
  min-height: 118px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.fact-grid span,
.data-strip span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.fact-grid strong {
  display: block;
  margin-top: 8px;
  font-size: 21px;
  overflow-wrap: anywhere;
}

.molecule-panel {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 32px;
  align-items: center;
}

.panel-copy {
  padding-right: 20px;
}

.molecule-panel canvas {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #071217;
}

.intent {
  border-top: 1px solid var(--line);
}

.intent-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.data-strip {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 12px;
  padding-top: 0;
}

.data-strip div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef7f6;
  overflow: hidden;
}

code {
  display: block;
  margin-top: 8px;
  color: #14333b;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  overflow-wrap: anywhere;
}

.faq-item {
  border-top: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  position: relative;
  cursor: pointer;
  min-height: 86px;
  display: flex;
  align-items: center;
  padding: 22px 76px 22px 0;
  font-size: 19px;
  font-weight: 800;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 18px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  color: var(--graphite);
  background: transparent;
  font-size: 30px;
  font-weight: 500;
  line-height: 1;
  transform: translateY(-50%) rotate(0deg);
  transition: transform 220ms ease, color 220ms ease;
}

.faq-item[open] summary::after {
  color: var(--graphite);
  background: transparent;
  transform: translateY(-50%) rotate(45deg);
}

.faq-content {
  height: 0;
  overflow: hidden;
  transition: height 280ms ease;
}

.faq-content p {
  max-width: 780px;
  margin: 0;
  padding: 0 76px 22px 0;
  color: var(--muted);
}

.sources ul {
  display: grid;
  gap: 12px;
  padding: 0;
  list-style: none;
}

.sources a {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #0a6872;
  font-weight: 800;
  text-decoration: none;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px clamp(18px, 4vw, 54px);
  color: rgba(255, 255, 255, 0.78);
  background: var(--graphite);
}

footer a {
  color: #79eff6;
  font-weight: 800;
  text-decoration: none;
}

.cookie-banner {
  position: fixed;
  z-index: 50;
  left: clamp(14px, 3vw, 32px);
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px;
  border: 1px solid rgba(121, 239, 246, 0.32);
  border-radius: 8px;
  color: #fff;
  background: rgba(7, 18, 23, 0.94);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(14px);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
}

.cookie-banner a {
  color: #79eff6;
  font-weight: 800;
}

.cookie-banner button {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 10px 18px;
  border: 0;
  border-radius: 6px;
  color: #061216;
  background: #79eff6;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.privacy-header {
  position: sticky;
  color: #fff;
  background: rgba(7, 18, 23, 0.96);
}

.privacy-page {
  width: min(980px, calc(100% - 36px));
  margin: 0 auto;
  padding: 76px 0 96px;
}

.privacy-hero {
  padding: 54px 0 36px;
  border-bottom: 1px solid var(--line);
}

.privacy-hero h1 {
  color: var(--ink);
  font-size: clamp(38px, 5vw, 68px);
}

.privacy-date {
  color: var(--muted);
  font-weight: 800;
}

.privacy-content {
  display: grid;
  gap: 18px;
  padding-top: 36px;
}

.privacy-content h2 {
  margin: 28px 0 0;
  font-size: clamp(24px, 3vw, 34px);
}

.privacy-content p,
.privacy-content li {
  color: var(--muted);
}

.privacy-content a {
  color: #0a6872;
  font-weight: 800;
}

@keyframes float {
  0%,
  100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-14px) rotate(1deg); }
}

@media (max-width: 900px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .site-header nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero {
    min-height: 760px;
  }

  .molecule-stage {
    right: 20px;
    bottom: 34px;
    transform: scale(0.82);
    transform-origin: right bottom;
  }

  .ticker,
  .split,
  .commercial,
  .molecule-panel,
  .data-strip,
  .intent-grid,
  .supply-grid,
  .safety-grid,
  .contact {
    grid-template-columns: 1fr;
  }

  .price-card {
    display: none;
  }
}

@media (max-width: 620px) {
  .site-header {
    flex-direction: column;
  }

  .hero-content {
    padding-top: 178px;
  }

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

  .molecule-stage {
    opacity: 0.55;
  }

  footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-banner button {
    width: 100%;
  }
}