/* Memvine homepage. One palette, one typeface, one moving thing (the vine, drawn in vine.js). */

:root {
  --night: #0b1310;
  --moss: #16261e;
  --linen: #e8ede7;
  --ash: #8a978e;
  --sprout: #a8e4bf;
  --stem: #3e8c5e;
  --hair: rgba(232, 237, 231, 0.12);
  --hair-strong: rgba(232, 237, 231, 0.22);
  --surface: #111c16;
  --gutter: clamp(20px, 6vw, 96px);
  --col: 720px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html {
  background: var(--night);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.5;
  color: var(--linen);
  background: var(--night);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--sprout); color: var(--night); }

a { color: inherit; text-decoration: none; }
a:focus-visible, .button:focus-visible {
  outline: 2px solid var(--sprout);
  outline-offset: 4px;
  border-radius: 4px;
}

#vine {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.top, main, .bottom { position: relative; z-index: 1; }

/* Header */

.top {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px var(--gutter);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.top nav { display: flex; gap: 32px; font-size: 15.5px; color: var(--ash); }
.top nav a { transition: color 160ms ease; }
.top nav a:hover { color: var(--linen); }
.top nav .nav-console { color: var(--linen); }

/* Hero */

.hero {
  min-height: 100svh;
  display: grid;
  align-content: center;
  padding: 120px var(--gutter) 80px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(46px, 7.2vw, 112px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.035em;
  max-width: 16ch;
}

.hero h1 .line { display: block; overflow: hidden; padding-bottom: 0.06em; margin-bottom: -0.06em; }
.hero h1 .line > span {
  display: inline-block;
  transform: translateY(112%);
  animation: rise 1000ms cubic-bezier(0.2, 0.7, 0.15, 1) forwards;
}
.hero h1 .line:nth-child(2) > span { animation-delay: 110ms; }

.lede {
  margin: 36px 0 0;
  max-width: 36ch;
  font-size: clamp(19px, 1.55vw, 23px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  opacity: 0;
  animation: appear 900ms ease 420ms forwards;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 44px;
  opacity: 0;
  animation: appear 900ms ease 560ms forwards;
}

.button {
  display: inline-flex;
  align-items: center;
  height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid var(--hair-strong);
  font-size: 16.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}
.button:hover { border-color: var(--linen); }
.button.primary { background: var(--linen); border-color: var(--linen); color: var(--night); }
.button.primary:hover { background: #ffffff; border-color: #ffffff; }

@keyframes rise { to { transform: translateY(0); } }
@keyframes appear { to { opacity: 1; } }

/* Statements */

.statement {
  margin: 0;
  max-width: 19ch;
  font-size: clamp(30px, 3.6vw, 54px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

.grows {
  display: grid;
  gap: 16vh;
  padding: 8vh var(--gutter) 16vh;
}

/* Recall and connect */

.recall, .connect { padding: 8vh var(--gutter) 14vh; }

h2 {
  margin: 0;
  max-width: 19ch;
  font-size: clamp(30px, 3.6vw, 54px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

.brief {
  margin-top: 56px;
  max-width: var(--col);
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: 16px;
  font-family: var(--mono);
  font-size: 15.5px;
  line-height: 1.6;
}

.brief-line { margin: 0; }
.brief-line + .brief-line { margin-top: 18px; }
.brief .tag { color: var(--sprout); }
.brief .was { color: var(--ash); }

.brief-line {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.2, 0.7, 0.15, 1);
}
.brief.shown .brief-line { opacity: 1; transform: none; }
.brief.shown .brief-line:nth-child(2) { transition-delay: 220ms; }
.brief.shown .brief-line:nth-child(3) { transition-delay: 440ms; }
.brief.shown .brief-line:nth-child(4) { transition-delay: 660ms; }

.commands {
  display: grid;
  gap: 32px;
  margin-top: 56px;
  max-width: var(--col);
}

.command h3 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.005em;
}

.command pre {
  margin: 0;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: 16px;
  font-family: var(--mono);
  font-size: 14.5px;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.also {
  margin: 44px 0 0;
  max-width: 40ch;
  font-size: clamp(19px, 1.55vw, 23px);
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.close { padding: 10vh var(--gutter) 18vh; }
.close .statement { max-width: 24ch; }

/* Footer */

.bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px var(--gutter) 44px;
  border-top: 1px solid var(--hair);
  font-size: 15.5px;
  color: var(--ash);
}
.bottom nav { display: flex; gap: 28px; }
.bottom a:hover { color: var(--linen); }

/* Small screens */

@media (max-width: 720px) {
  body { font-size: 17px; }
  .top { padding: 22px var(--gutter); }
  .top nav { display: none; }
  .hero { padding-top: 110px; }
  .hero h1 .line { display: inline; overflow: visible; padding: 0; margin: 0; }
  .hero h1 .line > span { display: inline; transform: none; opacity: 0; animation: appear 900ms ease 120ms forwards; }
  .grows { gap: 16vh; }
  .brief { padding: 22px 20px; font-size: 14px; }
  #vine { opacity: 0.62; }
  .bottom { flex-direction: column; align-items: flex-start; }
}

/* Reduced motion: everything is simply there. The vine draws itself at rest. */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero h1 .line > span, .lede, .actions { animation: none; transform: none; opacity: 1; }
  .brief-line { transition: none; }
}