/* SlipClip for Notion — dark cinematic ground, real paper slips floating in it.
   The paper/dark duality is the page's thesis: a messy lit web page becoming a
   clean filed note. One accent only, the highlighter yellow. */

:root {
  --void: #0b0b0c;
  --ink: #141412;
  --paper: #fafaf7;
  --mist: #8a8a80;
  --mist-bright: #b6b6ac;
  --mark: #ffd54a;
  --edge: rgba(250, 250, 247, .1);
  --edge-strong: rgba(250, 250, 247, .22);

  --display: "Fraunces", Georgia, serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --gutter: clamp(20px, 5vw, 64px);
  --measure: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--void);
  color: var(--paper);
  font: 400 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient light behind the fold. Cinematic depth without an image. */
body::before {
  content: "";
  position: fixed;
  inset: -30vh 0 auto 0;
  height: 90vh;
  background: radial-gradient(60% 55% at 50% 40%, rgba(255, 213, 74, .09), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

main, header, footer { position: relative; z-index: 1; }

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 400;
  font-variation-settings: "SOFT" 0, "WONK" 1;
  letter-spacing: -.02em;
  line-height: 1.04;
  margin: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mark);
}

/* ---------- header ---------- */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 19px;
  letter-spacing: -.01em;
  text-decoration: none;
}

.brand img { width: 26px; height: 26px; border-radius: 7px; }

.top nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
}

.top nav a {
  color: var(--mist-bright);
  text-decoration: none;
  transition: color .2s;
}

.top nav a:hover { color: var(--paper); }

/* ---------- hero ---------- */

.hero { padding: clamp(48px, 9vw, 110px) 0 clamp(40px, 7vw, 90px); }

.hero h1 {
  margin: 22px 0 0;
  font-size: clamp(42px, 7.4vw, 88px);
  max-width: 14ch;
}

.hero h1 em {
  font-style: normal;
  position: relative;
  white-space: nowrap;
}

/* The highlighter, drawn as a mark under the words rather than a box around
   them — the product's own gesture. */
.hero h1 em::after {
  content: "";
  position: absolute;
  left: -.06em;
  right: -.06em;
  bottom: .08em;
  height: .34em;
  background: var(--mark);
  opacity: .9;
  z-index: -1;
  transform: scaleX(0);
  transform-origin: left;
  animation: swipe .7s cubic-bezier(.2, .7, .3, 1) .5s forwards;
}

@keyframes swipe { to { transform: scaleX(1); } }

.lede {
  margin: 26px 0 0;
  max-width: 54ch;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--mist-bright);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .18s, background .18s, border-color .18s, color .18s;
}

.btn-primary { background: var(--paper); color: var(--ink); }
.btn-primary:hover { background: var(--mark); transform: translateY(-2px); }

.btn-ghost { border-color: var(--edge-strong); color: var(--paper); }
.btn-ghost:hover { border-color: var(--paper); transform: translateY(-2px); }

.fineprint {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- the clip stage ---------- */

.stage {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: clamp(14px, 3vw, 40px);
  margin-top: clamp(48px, 8vw, 96px);
}

.card {
  border-radius: 14px;
  padding: 16px;
  min-height: 260px;
}

/* left: the live page, full of things you did not ask for */
.source {
  background: #161617;
  border: 1px solid var(--edge);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .9);
}

.chrome { display: flex; gap: 6px; margin-bottom: 14px; }
.chrome i { width: 9px; height: 9px; border-radius: 50%; background: var(--edge-strong); }

.block { border-radius: 4px; margin-bottom: 9px; }
.junk { background: #2a2a2b; }
.text { background: #dedcd2; }

.stage.run .junk {
  animation: dissolve .6s cubic-bezier(.4, 0, 1, 1) forwards;
  animation-delay: calc(var(--i) * 70ms);
}

.stage.run .text {
  animation: shift .7s cubic-bezier(.2, .7, .3, 1) forwards;
  animation-delay: calc(500ms + var(--i) * 80ms);
}

@keyframes dissolve {
  to { opacity: 0; transform: translateX(-10px) scaleY(.3); }
}

@keyframes shift {
  to { opacity: .25; transform: translateX(26px); }
}

/* middle: the passage */
.arrow {
  color: var(--mist);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
}

/* Hidden-then-revealed only when scripting is available to reveal it. */
.js .arrow { opacity: 0; transform: translateX(-8px); }

.stage.run .arrow { animation: fade .5s ease .9s forwards; }

/* right: the slip it becomes */
.slip {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  box-shadow: 0 40px 90px -35px rgba(0, 0, 0, .95);
  transform: rotate(1.2deg);
}

.slip span {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.js .slip span { opacity: 0; transform: translateY(6px); }

.stage.run .slip span {
  animation: fade .45s ease forwards;
  animation-delay: calc(1s + var(--i) * 110ms);
}

.slip .h { font-weight: 600; }
.slip .facts { color: #7c7a70; font-style: italic; }
.slip .hl { background: var(--mark); padding: 0 3px; }

@keyframes fade { to { opacity: 1; transform: none; } }

/* ---------- sections ---------- */

section { padding: clamp(64px, 10vw, 128px) 0; }

.section-head { max-width: 46ch; margin-bottom: clamp(36px, 5vw, 60px); }
.section-head h2 { margin: 18px 0 0; font-size: clamp(30px, 4.4vw, 52px); }
.section-head p { margin: 18px 0 0; color: var(--mist-bright); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.tile {
  background: var(--paper);
  color: var(--ink);
  border-radius: 14px;
  padding: 24px;
  transition: transform .3s cubic-bezier(.2, .7, .3, 1), box-shadow .3s;
}

.tile:nth-child(2) { transform: rotate(-.7deg); }
.tile:nth-child(3) { transform: rotate(.5deg); }

.tile:hover {
  transform: translateY(-6px) rotate(0deg);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .9);
}

.tile h3 { font-size: 22px; }

.tile p { margin: 10px 0 16px; font-size: 14.5px; color: #55544c; }

.tile pre {
  margin: 0;
  padding: 12px;
  border-radius: 8px;
  background: #f0efe8;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: #35342e;
}

/* numbered because signing in genuinely is a sequence */
.steps { counter-reset: step; display: grid; gap: 2px; }

.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 26px 0;
  border-top: 1px solid var(--edge);
}

.step:last-child { border-bottom: 1px solid var(--edge); }

.step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mark);
}

.step h3 { font-size: 24px; }
.step p { margin: 8px 0 0; color: var(--mist-bright); max-width: 58ch; }

.plain { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.plain div { border-top: 1px solid var(--edge); padding-top: 18px; }
.plain h3 { font-family: var(--body); font-size: 15px; font-weight: 600; letter-spacing: 0; }
.plain p { margin: 8px 0 0; font-size: 14.5px; color: var(--mist); }

/* ---------- reveal ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.2, .7, .3, 1), transform .7s cubic-bezier(.2, .7, .3, 1);
}

.js .reveal.seen { opacity: 1; transform: none; }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--edge);
  padding: 40px 0 56px;
  font-size: 14px;
  color: var(--mist);
}

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: center;
  justify-content: space-between;
}

.foot a { color: var(--mist-bright); text-decoration: none; }
.foot a:hover { color: var(--paper); text-decoration: underline; }

/* ---------- legal pages ---------- */

.doc { padding: clamp(40px, 7vw, 86px) 0 clamp(60px, 9vw, 110px); max-width: 74ch; }
.doc h1 { font-size: clamp(34px, 5vw, 58px); }
.doc h2 { font-size: clamp(22px, 2.6vw, 28px); margin: 48px 0 0; }
.doc p, .doc li { color: var(--mist-bright); }
.doc li { margin-bottom: 10px; }
.doc a { color: var(--paper); }
.doc code {
  font-family: var(--mono);
  font-size: .88em;
  background: rgba(250, 250, 247, .08);
  padding: 2px 6px;
  border-radius: 5px;
}
.doc .updated { font-family: var(--mono); font-size: 12px; color: var(--mist); letter-spacing: .06em; }

:focus-visible { outline: 2px solid var(--mark); outline-offset: 3px; border-radius: 4px; }

@media (max-width: 760px) {
  .stage { grid-template-columns: 1fr; }
  .arrow { transform: rotate(90deg); justify-self: center; }
  .slip { transform: none; }
  .top nav { gap: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  /* .js- prefixed to match the specificity of the rules that hide these.
     Without it .js .slip span { opacity: 0 } wins and the hero card renders
     blank, because the animation that would have revealed it is switched off
     two lines above. */
  .js .reveal, .js .slip span, .js .arrow { opacity: 1; transform: none; }
  .hero h1 em::after { transform: scaleX(1); }
}