/* Palette and type follow boat.dev: ocean blue, off-white, square corners. */
:root {
  --ocean: #263fa9;
  --blue-1: #f1f3f9;
  --blue-2: #e0e3f2;
  --blue-3: #c2c9e6;
  --blue-4: #929fd3;
  --blue-5: #6b7cc4;
  --blue-6: #495eb7;
  --blue-8: #1e3180;
  --blue-9: #162358;
  --paper: #fefefe;
  --ink: #060606;
  --ink-2: #4d4d4d;
  --font-display: "Funnel Display", system-ui, sans-serif;
  --font-text: "Inter", system-ui, sans-serif;
  --font-code: "IBM Plex Mono", ui-monospace, monospace;
}

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

body {
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.75 var(--font-text);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(16px, 5vw, 48px);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--ocean);
  color: var(--paper);
  padding-bottom: 128px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  padding-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  font: 500 44px/1 var(--font-display);
  letter-spacing: -0.02em;
}

.brand-mark { width: 52px; height: 39px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a:not(.btn) { text-decoration: none; }
.nav-links a:not(.btn):hover { text-decoration: underline; }

.btn {
  display: inline-block;
  padding: 12px 24px;
  text-decoration: none;
  transition: background-color .15s, color .15s;
}

.btn-light { background: var(--paper); color: var(--ocean); }
.btn-light:hover { background: var(--blue-2); }

.hero-body { padding-top: 40px; position: relative; z-index: 1; }

h1 {
  font: 500 clamp(40px, 6vw, 80px)/1.1 var(--font-display);
  letter-spacing: -0.03em;
  max-width: 14ch;
}

.lede {
  margin-top: 32px;
  max-width: 640px;
  font-size: clamp(16px, 1.4vw, 18px);
}

/* A pixel sailboat crossing a strip of scrolling pixel waves. */
.sea {
  position: relative;
  overflow: hidden;
  margin-top: 40px;
  max-width: 560px;
  height: 96px;
  background: var(--blue-8);
}

.sailboat {
  position: absolute;
  z-index: 2;
  bottom: 14px;
  width: 64px;
  animation: sail 18s linear infinite;
}

.sailboat svg {
  display: block;
  width: 100%;
  animation: rock 1.6s steps(2) infinite;
}

.waves {
  position: absolute;
  left: 0;
  right: 0;
  height: 12px;
  background-size: 48px 12px;
  background-repeat: repeat-x;
  animation: drift 3s linear infinite;
}

.waves-back {
  z-index: 1;
  bottom: 10px;
  height: 24px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 4' shape-rendering='crispEdges'%3E%3Cpath fill='%23495eb7' d='M6 0h4v1h3v1h3v2H0V2h3V1h3z'/%3E%3C/svg%3E"), linear-gradient(var(--blue-6), var(--blue-6));
  background-size: 48px 12px, 100% 12px;
  background-position: 24px 0, 0 12px;
  animation-direction: reverse;
  animation-duration: 5s;
}

.waves-front {
  z-index: 3;
  bottom: 10px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 4' shape-rendering='crispEdges'%3E%3Cpath fill='%236b7cc4' d='M6 0h4v1h3v1h3v2H0V2h3V1h3z'/%3E%3C/svg%3E");
}

.sea::after {
  content: "";
  position: absolute;
  z-index: 3;
  inset: auto 0 0;
  height: 10px;
  background: var(--blue-5);
}

@keyframes sail {
  from { left: -72px; }
  to { left: 100%; }
}

@keyframes rock {
  50% { transform: translateY(-3px) rotate(-3deg); }
}

@keyframes drift {
  to { background-position-x: 48px; }
}

.meta { margin-top: 32px; color: var(--blue-4); }

.hero-boat {
  position: absolute;
  right: clamp(-40px, 4vw, 96px);
  bottom: 40px;
  width: clamp(180px, 28vw, 380px);
  opacity: .9;
  animation: bob 4s ease-in-out infinite;
}

@keyframes bob {
  50% { transform: translateY(-8px) rotate(-1deg); }
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  padding: 96px 0 128px;
}

.label {
  font: 12px/1.6 var(--font-code);
  color: var(--ink-2);
}

.frame {
  display: grid;
  place-items: center;
  aspect-ratio: 9 / 5;
  margin: 6px 0 10px;
  border: 1px solid var(--blue-4);
  font-family: var(--font-code);
  font-size: 12px;
}

.frame-tint { background: var(--blue-2); }
.frame-ocean { background: var(--ocean); border-color: var(--ocean); }
.frame-light { background: var(--blue-1); }

.card h3 {
  margin-top: 24px;
  font: 500 24px/1.3 var(--font-display);
  letter-spacing: -0.01em;
}

.card h3 + p { margin-top: 8px; color: var(--ink-2); font-size: 17px; }
.card a { color: var(--ocean); }

.stack { display: flex; gap: 6px; align-items: flex-end; }

.chip {
  padding: 6px 14px;
  background: var(--blue-5);
  color: var(--paper);
  border-bottom: 4px solid var(--blue-8);
  font-weight: 500;
}

.chip-mid { background: var(--blue-6); padding-bottom: 18px; }
.chip-deep { background: var(--blue-8); border-bottom-color: var(--blue-9); padding-bottom: 30px; }
.handoff .chip-deep { padding-bottom: 6px; }

.window { width: 62%; background: var(--blue-9); color: var(--paper); }
.window-bar { padding: 2px 8px; background: var(--blue-5); font-weight: 500; }
.window-body { display: grid; gap: 4px; padding: 14px 12px; }
.window-body .dim { color: var(--blue-4); }

.handoff {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 88%;
}

.handoff .dots { flex: 1; color: var(--ocean); letter-spacing: .1em; overflow: hidden; white-space: nowrap; }
.handoff svg { width: 64px; flex: none; }

/* Footer */
.footer {
  background: var(--blue-9);
  color: var(--blue-3);
  font: 13px/1 var(--font-code);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}

.status { display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; background: #4ade80; }

@media (max-width: 720px) {
  .hero { padding-bottom: 160px; }
  .brand { font-size: 32px; }
  .brand-mark { width: 40px; height: 30px; }
  .nav-links a:not(.btn) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-boat, .sailboat, .sailboat svg, .waves { animation: none; }
  .sailboat { left: 30%; }
}