:root {
  --sky: #d5eef8;
  --ink: #17232e;
  --muted: #4d6270;
  --line: rgba(23, 35, 46, 0.14);
  --teal: #1f9d98;
  --pink: #e07a96;
  --card: rgba(255, 255, 255, 0.72);
  --sans: "Outfit", "Segoe UI", sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", Consolas, ui-monospace, monospace;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 480px at 80% 0%, rgba(255, 255, 255, 0.55), transparent 60%),
    var(--sky);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.5;
}

body > * { position: relative; z-index: 1; }

::selection { background: #b7efe8; color: var(--ink); }

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

button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, figure, ol { margin: 0; }
code { font-family: var(--mono); }

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 50;
  background: var(--ink);
  color: white;
  padding: 8px 12px;
  border-radius: 8px;
}
.skip:focus { top: 12px; }

.beam {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 40;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--teal), var(--pink));
  pointer-events: none;
}

.sky {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.sky img {
  width: 130%;
  height: 130%;
  margin: -8% 0 0 -12%;
  object-fit: cover;
  filter: blur(22px) saturate(1.25) brightness(1.05);
  opacity: 0.55;
  animation: drift 30s ease-in-out infinite;
}

@keyframes drift {
  50% { transform: scale(1.08) translate3d(2%, -2%, 0); }
}

.wrap {
  width: min(1100px, calc(100% - 48px));
  margin-inline: auto;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(31, 157, 152, 0.55);
  animation: pulse 2.2s ease-out infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 8px transparent; }
}

h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(42px, 5.5vw, 72px);
  letter-spacing: -0.03em;
  line-height: 0.96;
}

.deck { max-width: 40ch; margin-top: 14px; color: var(--muted); }

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(213, 238, 248, 0.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}

.header.is-stuck { border-bottom-color: var(--line); }

.header-bar {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 0 0 2px #fff, 0 0 0 3px rgba(31, 157, 152, 0.45);
}

.brand-tick {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.nav-links { display: flex; gap: 18px; align-items: center; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 600; font-size: 15px; }
.nav-links a:hover { color: var(--ink); }

.menu-btn {
  display: none;
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}

.copy-ca,
.ghost { border-radius: 999px; transition: transform 0.25s var(--ease), background 0.25s var(--ease); }

.copy-ca {
  height: 40px;
  padding: 0 16px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.header .copy-ca { margin-left: auto; }
.copy-ca:hover { background: var(--teal); transform: translateY(-1px); }
.copy-ca-lg { height: 52px; padding: 0 22px; font-size: 16px; }

.ghost {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.ghost:hover { color: var(--teal); }

.hero { padding: 36px 0 18px; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(220px, 0.75fr);
  gap: 28px;
  align-items: center;
}

.file-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 6px 10px 6px 8px;
  border-radius: 10px 10px 0 0;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-bottom: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.file-tab em { font-style: normal; color: var(--teal); }
.file-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pink);
  animation: pulse 2.4s ease-out infinite;
}

.hero h1 {
  display: flex;
  flex-direction: column;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(46px, 6vw, 82px);
  letter-spacing: -0.035em;
  line-height: 0.92;
}

.hero h1 span { animation: rise 0.85s var(--ease) both; }
.hero h1 span:nth-child(2) { animation-delay: 0.08s; }
.hero h1 span:nth-child(3) { animation-delay: 0.16s; }

.glow { font-style: italic; color: var(--teal); }

.lede {
  max-width: 46ch;
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
  animation: rise 0.85s 0.22s var(--ease) both;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 20px;
  margin-top: 26px;
  animation: rise 0.85s 0.3s var(--ease) both;
}

.text-link {
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 35, 46, 0.35);
  padding-bottom: 2px;
  font-weight: 600;
}
.text-link:hover { border-bottom-color: var(--teal); }

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

.portrait {
  width: min(100%, 380px);
  margin-left: auto;
  border-radius: 28px;
  overflow: hidden;
  background: #fff;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.8),
    0 20px 50px rgba(40, 80, 110, 0.18);
  animation: float 7s ease-in-out infinite;
}

.portrait img { width: 100%; height: auto; }

@keyframes float {
  50% { transform: translateY(-10px); }
}

.contract {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.contract .kicker { margin: 0; }
.contract code {
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  margin-top: 12px;
  background: rgba(255, 255, 255, 0.35);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: ticker 30s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-group { display: flex; align-items: center; }
.marquee-group span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--muted);
}
.marquee-group i {
  width: 6px;
  height: 6px;
  margin: 0 20px;
  border-radius: 50%;
  background: var(--pink);
  flex: none;
}
@keyframes ticker { to { transform: translateX(-50%); } }

.block { padding: 88px 0; }

.listing { list-style: none; padding: 8px 0 0; }
.listing li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.listing li:last-child { border-bottom: 1px solid var(--line); }
.listing span {
  font-family: var(--mono);
  color: var(--teal);
  padding-top: 6px;
}
.listing h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}
.listing p { max-width: 62ch; color: var(--muted); }

.source-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 40px;
  align-items: end;
}

.repo {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 22px 18px;
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(40, 80, 110, 0.08);
  transition: transform 0.25s var(--ease);
}
.repo:hover { transform: translateY(-4px); }
.repo span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}
.repo strong {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 0.95;
}
.repo em { font-style: normal; color: var(--teal); font-weight: 600; }

.chart-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.chart-links { display: flex; gap: 16px; padding-bottom: 8px; }
.chart-links a {
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 35, 46, 0.35);
  padding-bottom: 2px;
}
.chart-links a:hover { border-bottom-color: var(--teal); }

.chart-frame {
  height: min(70vh, 640px);
  min-height: 460px;
  border-radius: 22px;
  overflow: hidden;
  background: #101820;
  border: 1px solid var(--line);
  box-shadow: 0 24px 50px rgba(40, 80, 110, 0.16);
}
.chart-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.chart-note {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.dev-panel { max-width: 720px; }
.dev-link {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 24px;
  padding: 18px 22px 16px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--line);
  border-radius: 18px;
  transition: transform 0.25s var(--ease);
}
.dev-link:hover { transform: translateY(-3px); }
.dev-link span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.dev-link strong {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 0.9;
  color: var(--teal);
}

.footer { padding: 8px 0 36px; border-top: 1px solid var(--line); }
.footer-name {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(56px, 9vw, 104px);
  line-height: 0.9;
  margin: 16px 0;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 16px 24px;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.footer-row nav { display: flex; gap: 16px; flex-wrap: wrap; }
.footer a { text-decoration: none; font-weight: 600; }
.footer a:hover { color: var(--teal); }
.footer code { color: var(--muted); font-size: 12px; }

@media (max-width: 860px) {
  .hero-grid,
  .source-grid { grid-template-columns: 1fr; }
  .portrait { width: min(100%, 300px); margin: 8px auto 0; order: -1; }
  .block { padding: 68px 0; }
  .chart-frame { min-height: 520px; height: 70vh; }
}

@media (max-width: 800px) {
  .menu-btn { display: inline-flex; align-items: center; margin-left: auto; flex-shrink: 0; }
  .brand-name { display: none; }
  .header-bar { gap: 10px; }
  .header .copy-ca { margin-left: 10px; height: 36px; padding: 0 12px; font-size: 13px; }
  .nav-links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 72px;
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 22px 22px;
    background: #e7f5fb;
    border-bottom: 1px solid var(--line);
  }
  .header.is-open .nav-links {
    display: flex;
    min-height: calc(100dvh - 72px);
  }
  .nav-links a { font-size: 26px; color: var(--ink); padding: 8px 0; }
}

@media (max-width: 560px) {
  .wrap { width: min(1100px, calc(100% - 32px)); }
  .contract { grid-template-columns: auto 1fr; }
  .contract code { grid-column: 1 / -1; }
  .listing li { grid-template-columns: 36px minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .marquee-track { transform: none; }
  .marquee-group:last-child { display: none; }
}