:root {
  --wall: #141414;
  --card: #1c1c1c;
  --track: #242424;
  --line: #333333;
  --chalk: #f2efe9;
  --paper: #d6d2cb;
  --dust: #9d9890;
  --ink: #111111;
  --accent: #ff5a36;
  --marker: "Permanent Marker", "Comic Sans MS", cursive;
  --body: "Archivo", system-ui, -apple-system, sans-serif;
  --col: 720px;
  --gutter: clamp(20px, 6vw, 96px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--wall);
  color: var(--chalk);
  font: 400 18px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* Concrete: a fixed grain over everything. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
#cloud { position: fixed; inset: 0; z-index: 0; width: 100%; height: 100%; display: block; }
header, main, footer { position: relative; z-index: 2; }

a { color: var(--chalk); text-decoration: underline; text-decoration-color: var(--dust); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
button { font: inherit; }

/* Top */
.top { display: flex; justify-content: space-between; align-items: center; padding: 20px var(--gutter); }
.tag { font: 400 1.5rem/1 var(--marker); color: var(--chalk); text-decoration: none; display: inline-flex; align-items: center; gap: 10px; transform: rotate(-3deg); }
.tag img { width: 24px; height: 24px; transform: rotate(4deg); }
.menu a { text-decoration: none; margin-left: 24px; font-weight: 500; color: var(--paper); }
.menu a:hover { color: var(--chalk); }

/* Hero: a tag written on the wall. */
.hero { min-height: calc(100vh - 84px); display: flex; flex-direction: column; justify-content: center; padding: 24px var(--gutter) 72px; max-width: 1100px; }
.wordmark {
  display: inline-block;
  align-self: flex-start;
  margin: 0 0 8px;
  font: 400 clamp(5.5rem, 17vw, 13rem)/1 var(--marker);
  color: var(--chalk);
  transform: rotate(-2.5deg);
  transform-origin: left bottom;
  letter-spacing: -0.01em;
}
.wordmark .l { display: inline-block; }
.tagline { font: 400 clamp(1.25rem, 2.6vw, 1.8rem)/1.25 var(--marker); color: var(--paper); margin: 22px 0 22px; }
.lede { max-width: 620px; font-size: 1.15rem; margin: 0 0 30px; }
.actions { display: flex; gap: 28px; flex-wrap: wrap; align-items: center; margin: 0 0 26px; }
.note { color: var(--dust); font-size: 0.95rem; margin: 0; max-width: 560px; }

html.anim .wordmark .l { opacity: 0; transform: translateY(8px); }
html.anim .tagline, html.anim .lede, html.anim .actions, html.anim .note { opacity: 0; }

.btn {
  display: inline-block;
  padding: 14px 26px;
  background: var(--chalk);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.15s;
}
.btn:hover { background: #ffffff; }
.btn:active { background: var(--paper); }
/* A tag written next to it in marker, underlined with one stroke. */
.tag-link {
  position: relative;
  display: inline-block;
  padding: 12px 4px 10px;
  font: 400 1.25rem/1 var(--marker);
  color: var(--chalk);
  text-decoration: none;
}
.tag-link::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -4px;
  bottom: 1px;
  height: 8px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 12' preserveAspectRatio='none'%3E%3Cpath d='M3 7 C 40 3, 90 10, 130 6 S 200 4, 237 7' fill='none' stroke='%23f2efe9' stroke-width='4' stroke-linecap='round'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
  opacity: 0.8;
}
.tag-link:hover::after { opacity: 1; }

/* Reading column */
.prose, .calls-intro { max-width: var(--col); margin: 0 auto; padding: 104px 20px 0; }
.prose:last-of-type { padding-bottom: 40px; }
h2 { font: 800 clamp(2rem, 4.2vw, 2.8rem)/1.05 var(--body); letter-spacing: -0.02em; margin: 0 0 22px; }
.prose p, .calls-intro p { margin: 0 0 20px; color: var(--paper); }
.plain { list-style: none; padding: 0; margin: 0; }
.plain li { position: relative; padding-left: 22px; margin: 0 0 12px; color: var(--paper); }
.plain li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 8px; border-radius: 50%; background: var(--chalk); }
pre { background: #0d0d0d; border: 1px solid var(--line); border-radius: 8px; padding: 18px 20px; overflow: auto; margin: 0 0 20px; }
code { font: 400 0.92rem/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: #e6e2db; }

.lineage { list-style: none; padding: 0 0 0 24px; margin: 0 0 24px; border-left: 2px solid var(--line); }
.lineage li { position: relative; padding: 0 0 26px; color: var(--paper); display: block; }
.lineage li::before { content: ""; position: absolute; left: -30px; top: 9px; width: 10px; height: 10px; border-radius: 50%; background: var(--chalk); }
.lineage strong { display: inline-block; font: 800 1.3rem/1 var(--body); letter-spacing: -0.01em; color: var(--chalk); margin: 0 10px 6px 0; }
.lineage small { font: 400 0.95rem var(--marker); color: var(--dust); }

/* Calls */
.calls { max-width: 860px; margin: 0 auto; padding: 0 20px; }
.calls-intro { padding-top: 104px; }
.call { background: var(--card); border-radius: 18px; padding: 22px 22px 18px; margin: 0 0 44px; }
.call h3 { display: inline-block; margin: 0 0 6px; font: 400 1.5rem/1.1 var(--marker); color: var(--chalk); transform: rotate(-1deg); transform-origin: left; }
.call .caption { margin: 0 0 18px; color: var(--paper); font-size: 1.02rem; max-width: 680px; }
.track { display: grid; grid-template-columns: 52px 1fr; gap: 12px; align-items: center; background: var(--track); border-radius: 14px; padding: 10px 14px 10px 10px; margin-top: 10px; }
.who { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; font: 400 0.78rem/1 var(--marker); text-align: center; }
.track.caller .who { border: 2px solid var(--chalk); color: var(--chalk); }
.track.agent .who { background: var(--chalk); color: var(--ink); }
.track canvas { width: 100%; height: 64px; display: block; cursor: pointer; touch-action: none; }
/* Moment labels: white stickers under the agent's track, each with a line up to its moment. */
.labels { position: relative; z-index: 2; height: 46px; margin: 0 14px 4px 74px; }
.label { position: absolute; top: calc(10px + var(--row, 0) * 36px); left: var(--x); transform: translateX(calc(-50% + var(--shift, 0px))); background: none; border: 0; padding: 0; cursor: pointer; opacity: 0.85; transition: opacity 0.2s; }
.label span { display: inline-block; font: 400 0.85rem/1 var(--marker); background: var(--chalk); color: var(--ink); padding: 8px 11px; border-radius: 4px; white-space: nowrap; transform: rotate(var(--r, 0deg)); transition: background 0.2s; }
.label::before { content: ""; position: absolute; z-index: -1; left: 50%; bottom: 100%; width: 2px; height: calc(94px + var(--row, 0) * 36px); background: var(--dust); transform: translateX(calc(-50% - var(--shift, 0px))); transition: background 0.2s; }
.label.is-on, .label:hover { opacity: 1; }
.label.is-on span { background: var(--accent); }
.label.is-on::before { background: var(--accent); }
.controls { display: flex; align-items: center; gap: 14px; margin-top: 10px; }
.play { width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--chalk); color: var(--ink); display: grid; place-items: center; cursor: pointer; transition: transform 0.12s; }
.play:hover { transform: scale(1.06); }
.play svg { width: 18px; height: 18px; display: block; }
.time { font-variant-numeric: tabular-nums; color: var(--dust); }
.spacer { flex: 1; }
.subs-btn { background: none; border: 1px solid var(--line); color: var(--chalk); padding: 8px 14px; border-radius: 999px; cursor: pointer; font-size: 0.9rem; }
.subs-btn:hover { border-color: var(--chalk); }
.dl { width: 40px; height: 40px; border-radius: 50%; background: #2c2c2c; display: grid; place-items: center; color: var(--chalk); }
.dl svg { width: 18px; height: 18px; }
.subs { display: none; margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; max-height: 380px; overflow: auto; }
.call.show-subs .subs { display: block; }
.line { display: grid; grid-template-columns: 56px 1fr; gap: 10px; padding: 5px 8px; border-radius: 6px; font-size: 0.95rem; color: #cbc7bf; cursor: pointer; }
.line b { font: 400 0.8rem/1.6 var(--marker); color: var(--dust); }
.line.agent b { color: var(--chalk); }
.line.is-now { background: #282828; color: var(--chalk); }
.loading { color: var(--dust); padding: 20px 0; }

footer { max-width: var(--col); margin: 40px auto 70px; padding: 0 20px; color: var(--dust); display: flex; gap: 22px; flex-wrap: wrap; align-items: center; }
footer a { color: var(--chalk); }

@media (max-width: 720px) {
  body { font-size: 17px; }
  .menu a { margin-left: 16px; }
  .hero { min-height: auto; padding-top: 8vh; }
  .lede { font-size: 1.05rem; }
  .prose, .calls-intro { padding-top: 72px; }
  .call { padding: 16px 14px 14px; border-radius: 16px; }
  .track { grid-template-columns: 40px 1fr; gap: 10px; padding: 8px 10px 8px 8px; }
  .who { width: 38px; height: 38px; font-size: 0.62rem; }
  .track canvas { height: 56px; }
  .labels { height: auto; display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; }
  .label { position: static; transform: none; }
  .label::before { display: none; }
  .label span { transform: none; }
  .subs-btn { padding: 8px 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .play, .label, .label span, .label::before { transition: none; }
}