/* Attentry site. Dark and product-first; one accent (signal teal) for what Attentry sees.
   Spacing is one 8px scale: every margin, padding and gap below uses a --space token. */

:root {
  --canvas: #08090b;
  --surface: #0e1116;
  --surface-2: #13171d;
  --surface-3: #1a1f27;
  --hairline: #232830;
  --hairline-strong: rgba(255, 255, 255, 0.14);
  --ink: #f2f4f7;
  --body: #c5cbd4;
  --mute: #959ba5;
  --paper: #f2f4f7;
  --paper-ink: #0e1116;
  --teal: #1fc8a4;
  --teal-soft: rgba(31, 200, 164, 0.14);
  --red: #ff6b6b;
  --red-soft: rgba(255, 107, 107, 0.14);
  --amber: #ffc24b;
  --amber-soft: rgba(255, 194, 75, 0.14);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --section: clamp(var(--space-8), 9vw, 128px);
  --gutter: clamp(var(--space-4), 4vw, var(--space-6));

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --display: "Space Grotesk", Inter, system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }
html { background: var(--canvas); scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font: 16px/1.6 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-feature-settings: "calt", "kern", "liga", "ss03";
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: var(--ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: var(--radius-sm); }
p { margin: 0; }
h1, h2, h3 { margin: 0; color: var(--ink); font-family: var(--display); letter-spacing: -0.015em; }
h1 { font-size: clamp(40px, 6.2vw, 72px); font-weight: 600; line-height: 1.04; }
h2 { font-size: clamp(30px, 4.2vw, 48px); font-weight: 500; line-height: 1.12; }
h3 { font-family: Inter, sans-serif; font-size: 18px; font-weight: 500; line-height: 1.4; letter-spacing: 0.005em; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section) 0; }
.eyebrow { font-size: 13px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal); }
.heading { display: grid; gap: var(--space-4); max-width: 720px; }
.lead { font-size: clamp(17px, 1.6vw, 19px); line-height: 1.6; color: var(--body); max-width: 62ch; }
.note { font-size: 13px; color: var(--mute); }
.source { font-size: 12px; color: var(--mute); }
.source a { color: var(--mute); text-decoration: underline; text-underline-offset: 2px; }
.source a:hover { color: var(--ink); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Buttons: one white pill per view; the rest are quiet. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 44px; padding-inline: var(--space-5); border-radius: 999px;
  font-size: 14px; font-weight: 500; letter-spacing: 0.01em; border: 1px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:hover { text-decoration: none; }
.btn-primary { background: #fff; color: #000; }
.btn-primary:hover { background: #e4e6ea; }
.btn-quiet { background: var(--surface-2); color: var(--ink); border-color: var(--hairline); }
.btn-quiet:hover { background: var(--surface-3); }
.actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* Top bar */
.top { position: sticky; top: 0; z-index: 20; background: rgba(8, 9, 11, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--hairline); }
.top .wrap { display: flex; align-items: center; gap: var(--space-5); min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); font-family: var(--display); font-size: 21px; font-weight: 600; color: var(--ink); }
.brand:hover { text-decoration: none; }
.nav { display: flex; align-items: center; gap: var(--space-5); margin-left: auto; font-size: 14px; font-weight: 500; }
.nav a:not(.btn) { color: var(--mute); transition: color 0.2s; }
.nav a:not(.btn):hover { color: var(--ink); text-decoration: none; }
/* Top bar links: a neon underline draws out from the centre on hover, and stays under the
   section being read (app.js marks it .current). */
.top .nav a:not(.btn) { position: relative; padding-block: var(--space-2); }
.top .nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; border-radius: 2px;
  background: #39ff9f; box-shadow: 0 0 8px rgba(57, 255, 159, 0.8), 0 0 16px rgba(57, 255, 159, 0.4);
  transform: scaleX(0); transition: transform 0.3s var(--ease);
}
.top .nav a:not(.btn):hover::after, .top .nav a:not(.btn):focus-visible::after, .top .nav a.current::after { transform: scaleX(1); }
.top .nav a.current { color: var(--ink); }
.top .nav .btn-primary { transition: background 0.2s, box-shadow 0.2s; }
.top .nav .btn-primary:hover { box-shadow: 0 0 16px rgba(57, 255, 159, 0.45); }
.nav .btn { min-height: 36px; padding-inline: var(--space-4); }

/* Reveal on scroll: in, and out again when it leaves. */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

/* 1 · Hero: the world codes with agents */
.hero { padding-block: clamp(var(--space-8), 8vw, var(--space-9)) 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: var(--space-8); align-items: center; }
/* The second row: what Attentry is, beside a developer asking and the agent editing. */
.hero-row { display: grid; grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.78fr); gap: var(--space-7); align-items: center; margin-top: var(--space-8); }
.hero-more { display: grid; gap: var(--space-5); }
.hero-more .stats { margin-top: 0; }
.hero-copy { display: grid; gap: var(--space-5); }
.pill { display: inline-flex; align-items: center; gap: var(--space-2); justify-self: start; padding: var(--space-1) var(--space-3); border: 1px solid var(--hairline); border-radius: 999px; background: var(--surface); font-size: 13px; color: var(--body); }
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px var(--teal-soft); animation: blink 2.4s ease-in-out infinite; }
.prompt {
  display: flex; align-items: center; gap: var(--space-3); max-width: 520px;
  padding: var(--space-3) var(--space-4); border: 1px solid var(--hairline); border-radius: var(--radius-md);
  background: var(--surface); font: 15px/1.5 var(--mono); color: var(--ink);
}
.prompt::before { content: ">"; color: var(--mute); }
.caret { display: inline-block; width: 8px; height: 1.15em; margin-left: 2px; vertical-align: text-bottom; background: var(--teal); animation: blink 1s steps(1) infinite; }

.globe-stage { position: relative; aspect-ratio: 1; width: 100%; max-width: 520px; justify-self: center; }
/* Laid over its square box, so the drawing size the script sets can never resize the layout. */
.globe-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.face {
  position: absolute; width: 22%; aspect-ratio: 1; border-radius: 50%; overflow: hidden;
  border: 1px solid var(--hairline-strong); background: var(--surface);
  animation: float 6s var(--ease) infinite;
}
.face img { width: 100%; height: 100%; object-fit: cover; mix-blend-mode: screen; }
.face-a { top: 4%; left: 2%; }
.face-b { top: 18%; right: -2%; animation-delay: -2s; }
.face-c { bottom: 6%; left: 14%; animation-delay: -4s; }
.bubble {
  position: absolute; padding: var(--space-1) var(--space-3); border-radius: 999px; white-space: nowrap;
  background: var(--surface-2); border: 1px solid var(--hairline); font: 12px/1.6 var(--mono); color: var(--body);
  opacity: 0; transform: translateY(8px) scale(0.96); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.bubble.show { opacity: 1; transform: none; }
.bubble-a { top: 27%; left: 0; }
.bubble-b { top: 42%; right: -4%; }
.bubble-c { bottom: 2%; right: 12%; }

.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); margin-top: var(--space-3); max-width: 560px; }
.stat { display: grid; gap: var(--space-1); padding: var(--space-4) var(--space-5); border: 1px solid var(--hairline); border-radius: var(--radius-md); background: var(--surface); }
.stat b { font-family: var(--display); font-size: clamp(32px, 4vw, 40px); font-weight: 500; line-height: 1.1; color: var(--ink); }
.stat span { font-size: 14px; }

/* Developers at work, typing */
/* You ask, the agent edits: one box, the developer on the left, the agent's VS Code on the right. */
.duo { display: grid; grid-template-columns: minmax(0, 0.5fr) auto minmax(0, 1.5fr); gap: var(--space-4); align-items: center; margin: 0; padding: var(--space-5); border: 1px solid var(--hairline); border-radius: var(--radius-lg); background: var(--surface); }
.duo-dev, .duo-agent { display: grid; gap: var(--space-4); min-width: 0; }
.duo-arrow { opacity: 0.8; }
.duo-cap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2) var(--space-4); font-size: 14px; color: var(--mute); }
.duo-cap b { color: var(--ink); font-weight: 500; }
.sprite { position: relative; width: 100%; }
.sprite img { width: 100%; filter: invert(0.94); }
.sprite .steam { position: absolute; width: 5.4%; opacity: 0; animation: steam 2.6s ease-in-out infinite; }
/* The typing finger: the drawing's hand is open at the top; "hold" adds the fingertips on the
   keys, and one of the other frames at a time is the finger, lifted to pressing (app.js). */
.sprite .frame { position: absolute; top: 0; left: 0; opacity: 0; }
.sprite .frame.hold, .sprite .frame.on { opacity: 1; }

/* The agent at work: a small VS Code, the file in the middle, the chat beside it. */
.mini { border: 1px solid var(--hairline); border-radius: var(--radius-md); overflow: hidden; background: var(--canvas); }
.mini-bar { display: flex; align-items: center; gap: 6px; padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--hairline); background: var(--surface-2); font: 11px/1.4 var(--mono); color: var(--mute); }
.mini-bar .win { display: flex; gap: var(--space-4); margin-left: auto; }
.mini-activity .agent { opacity: 0.95; }
.mini-body { display: grid; grid-template-columns: 30px minmax(0, 1fr) 156px; height: 268px; }
.mini-activity { display: flex; flex-direction: column; align-items: center; gap: var(--space-4); padding-top: var(--space-3); border-right: 1px solid var(--hairline); background: var(--surface-2); }
.mini-code { padding: var(--space-3) 0; font: 11px/1.75 var(--mono); color: var(--body); overflow: hidden; counter-reset: mline; }
.mini-code .ln { display: flex; gap: var(--space-3); padding-inline: var(--space-3); white-space: pre; transition: background 0.5s var(--ease); }
.mini-code .ln::before { counter-increment: mline; content: counter(mline); width: 1.6ch; flex: none; text-align: right; color: #4a515c; }
.mini-code .ln.added { background: rgba(31, 200, 164, 0.1); }
.mini-code .ln.changed { background: rgba(124, 196, 255, 0.1); }
.mini-chat { display: flex; flex-direction: column; justify-content: flex-end; gap: var(--space-2); padding: var(--space-3); border-left: 1px solid var(--hairline); background: var(--surface); overflow: hidden; }
.msg { padding: 6px var(--space-2); border-radius: var(--radius-sm); font-size: 11.5px; line-height: 1.45; opacity: 0; transform: translateY(6px); transition: opacity 0.35s var(--ease), transform 0.35s var(--ease); }
.msg.show { opacity: 1; transform: none; }
.msg.you { align-self: flex-end; max-width: 92%; background: var(--surface-3); color: var(--ink); }
.msg.agent { color: var(--body); }
.msg.agent::before { content: "● "; color: #d97757; }
.msg.done::before { color: var(--teal); }

/* 2 · The cost of speed */
.cost { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: var(--space-8); align-items: center; margin-top: var(--space-7); }
.cost-art { position: relative; border: 1px solid var(--hairline); border-radius: var(--radius-lg); background: var(--surface); padding: var(--space-6); }
.cost-art .desk { opacity: 0.95; }
/* The problems piling up around her, popping in and out in turn. */
.chip {
  position: absolute; left: var(--x); top: var(--y); padding: 6px var(--space-3); border-radius: 999px;
  font: 12px/1.5 var(--mono); white-space: nowrap; color: var(--ink); background: var(--surface-2);
  border: 1px solid var(--hairline-strong); opacity: 0;
  animation: chip 8.4s var(--ease) infinite paused; animation-delay: var(--d);
}
.chip::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: var(--space-2); border-radius: 50%; vertical-align: 1px; }
.chip-red::before { background: var(--red); }
.chip-amber::before { background: var(--amber); clip-path: polygon(50% 0, 100% 100%, 0 100%); border-radius: 0; }
.chip-info::before { background: #7cc4ff; border-radius: 2px; }
.cost-art.live .chip { animation-play-state: running; }
.cost-cards { display: grid; gap: var(--space-4); }
.cost-card { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-2) var(--space-5); align-items: baseline; padding: var(--space-5); border: 1px solid var(--hairline); border-radius: var(--radius-md); background: var(--surface); }
.cost-card b { grid-row: span 2; min-width: 3.4ch; font-family: var(--display); font-size: clamp(36px, 4.4vw, 48px); font-weight: 500; line-height: 1; color: var(--ink); }
.cost-card b.red { color: var(--red); }
.cost-card b.amber { color: var(--amber); }
.cost-card p { font-size: 15px; color: var(--body); }

/* 3 · The editor scene: Claude writes, Attentry watches, Claude fixes */
.scene { margin-top: var(--space-7); display: grid; gap: var(--space-4); }
.editor { border: 1px solid var(--hairline); border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); }
.editor-bar { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--hairline); background: var(--surface-2); font-size: 12px; color: var(--mute); }
.editor-bar b { width: 11px; height: 11px; border-radius: 50%; background: var(--surface-3); border: 1px solid var(--hairline-strong); }
.editor-bar span { margin-left: var(--space-3); font-family: var(--mono); }
.editor-body { display: grid; grid-template-columns: 48px minmax(0, 1fr) 300px; min-height: 420px; }
.activity { display: flex; flex-direction: column; align-items: center; gap: var(--space-5); padding-top: var(--space-4); border-right: 1px solid var(--hairline); background: var(--surface-2); }
.activity svg { opacity: 0.55; }
.activity .tower { opacity: 0.55; transition: opacity 0.4s var(--ease), filter 0.4s var(--ease); }
.scene[data-step="watch"] .tower, .scene[data-step="fix"] .tower, .scene[data-step="done"] .tower { opacity: 1; filter: drop-shadow(0 0 6px var(--teal)); }
.code { padding: var(--space-4) 0; font: 13.5px/1.75 var(--mono); color: var(--body); overflow: hidden; counter-reset: line; }
.code .ln { display: flex; gap: var(--space-4); padding-inline: var(--space-4); min-height: 1.75em; white-space: pre; transition: background 0.4s var(--ease), opacity 0.4s var(--ease), max-height 0.5s var(--ease); max-height: 2em; }
.code .ln::before { counter-increment: line; content: counter(line); width: 2ch; flex: none; text-align: right; color: #4a515c; }
.code .k { color: #c59cff; }
.code .s { color: #9fe0a8; }
.code .f { color: #7cc4ff; }
.code .c { color: #69717d; }
.code .flag { text-decoration: underline wavy; text-underline-offset: 4px; text-decoration-skip-ink: none; }
.code .ln.bad .flag { text-decoration-color: var(--red); }
.code .ln.copy .flag { text-decoration-color: var(--amber); }
.code .ln.dead { opacity: 0.45; }
.scene[data-step="watch"] .ln.bad { background: var(--red-soft); }
.scene[data-step="watch"] .ln.copy { background: var(--amber-soft); }
.code .ln.gone { max-height: 0; min-height: 0; opacity: 0; }
.code .ln.fixed { background: var(--teal-soft); }
.panel { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-4); border-left: 1px solid var(--hairline); background: var(--surface-2); font-size: 13px; }
.panel-head { display: flex; align-items: center; gap: var(--space-2); color: var(--ink); font-weight: 500; }
.panel-state { margin-left: auto; font-size: 12px; color: var(--mute); }
.finding { display: grid; gap: var(--space-1); padding: var(--space-3); border: 1px solid var(--hairline); border-radius: var(--radius-sm); background: var(--surface); opacity: 0; transform: translateX(12px); transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.4s; }
.finding.show { opacity: 1; transform: none; }
.finding.done { border-color: var(--teal); }
.finding.done .what::after { content: "  fixed"; color: var(--teal); }
.finding .what { display: flex; align-items: center; gap: var(--space-2); color: var(--ink); }
.finding .what i { width: 8px; height: 8px; flex: none; border-radius: 50%; }
.finding .where { font-family: var(--mono); font-size: 11.5px; color: var(--mute); }
.finding.sev-red i { background: var(--red); }
.finding.sev-amber i { background: var(--amber); clip-path: polygon(50% 0, 100% 100%, 0 100%); border-radius: 0; }
.finding.sev-info i { background: #7cc4ff; border-radius: 2px; }
.card-done { margin-top: auto; padding: var(--space-3); border: 1px solid var(--teal); border-radius: var(--radius-sm); background: var(--teal-soft); color: var(--ink); font: 12px/1.7 var(--mono); opacity: 0; transform: translateY(8px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.scene[data-step="done"] .card-done { opacity: 1; transform: none; }
.scene-caption { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.scene-caption button { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 36px; padding: 0 var(--space-3); border-radius: 999px; border: 1px solid transparent; font-size: 14px; color: var(--mute); transition: color 0.2s, background 0.2s, border-color 0.2s; }
.scene-caption button::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--hairline-strong); transition: background 0.3s; }
.scene-caption button:hover { color: var(--ink); background: var(--surface-2); border-color: var(--hairline); }
.scene-caption button.on { color: var(--ink); }
.scene-caption button.on::before { background: var(--teal); }

/* 4 · How it works */
.steps { margin-top: var(--space-7); border: 1px solid var(--hairline); border-radius: var(--radius-lg); overflow: hidden; }
.step { display: grid; grid-template-columns: 180px minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--space-5); padding: var(--space-5) var(--space-6); border-top: 1px solid var(--hairline); background: var(--surface); align-items: start; }
.step:first-child { border-top: 0; }
.when { padding-top: 2px; font-size: 12px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); }
.step p { margin-top: var(--space-1); font-size: 15px; }
.said { padding: var(--space-3) var(--space-4); border: 1px solid var(--hairline); border-radius: var(--radius-sm); background: var(--surface-2); font: 12.5px/1.65 var(--mono); white-space: pre-wrap; color: var(--body); }
.said .who { color: var(--teal); }


/* 5 · Ask it what it catches: a chat that answers with the categories */
.chat { --neon: #39ff9f; margin-top: var(--space-7); border: 1px solid var(--hairline); border-radius: var(--radius-lg); background: var(--surface); overflow: hidden; }
.chat-head { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--hairline); background: var(--surface-2); }
.chat-who { display: grid; line-height: 1.3; }
.chat-who b { color: var(--ink); font-weight: 500; font-size: 15px; }
.online { display: inline-flex; align-items: center; gap: var(--space-2); font-size: 12px; color: var(--mute); }
.online::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); animation: blink 2.4s ease-in-out infinite; }
.chat-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-left: auto; }
.replay { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 36px; padding: 0 var(--space-4); border-radius: 999px; border: 1px solid var(--hairline-strong); background: var(--surface-3); color: var(--ink); font-size: 13px; transition: background 0.2s, border-color 0.2s; }
.replay:hover { background: var(--surface); border-color: var(--neon); }
.replay svg { transition: transform 0.5s var(--ease); }
.replay:hover svg { transform: rotate(-180deg); }
.replay[hidden] { display: none; }
.chat-tags span { padding: 2px var(--space-3); border: 1px solid var(--hairline-strong); border-radius: 999px; font: 11px/1.7 var(--mono); color: var(--body); }
.avatar { display: grid; place-items: center; width: 32px; height: 32px; flex: none; border-radius: 50%; border: 1px solid var(--hairline-strong); background: var(--canvas); font-size: 11px; font-weight: 600; color: var(--ink); }
.avatar-you { background: var(--surface-3); }
.chat-log { display: flex; flex-direction: column; gap: var(--space-5); min-height: 320px; max-height: 760px; padding: var(--space-6); overflow-y: auto; }
.msg { display: flex; gap: var(--space-3); align-items: flex-start; animation: pop 0.35s var(--ease) both; }
.msg.from-you { flex-direction: row-reverse; }
.msg > div { display: grid; gap: var(--space-2); min-width: 0; }
.from-you > div { justify-items: end; }
.bubble-attentry, .bubble-you { max-width: 64ch; padding: var(--space-3) var(--space-4); font-size: 15px; line-height: 1.55; }
.bubble-attentry { border-radius: var(--space-1) var(--radius-md) var(--radius-md) var(--radius-md); background: var(--surface-2); border: 1px solid var(--hairline); color: var(--body); }
.bubble-you { border-radius: var(--radius-md) var(--space-1) var(--radius-md) var(--radius-md); background: var(--surface-3); color: var(--ink); }
.when-sent { font-size: 11px; color: var(--mute); }
.answer-body { flex: 1; }
.thinking { display: inline-flex; gap: 5px; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); background: var(--surface-2); border: 1px solid var(--hairline); }
.thinking i { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); animation: think 1s ease-in-out infinite; }
.thinking i:nth-child(2) { animation-delay: 0.15s; }
.thinking i:nth-child(3) { animation-delay: 0.3s; }
.answer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); }
.answer { display: grid; gap: var(--space-2); align-content: start; padding: var(--space-4) var(--space-5); border: 1px solid var(--hairline); border-radius: var(--radius-md); background: var(--surface-2); animation: pop 0.45s var(--ease) both; animation-delay: calc(var(--n) * 120ms); transition: border-color 0.25s, transform 0.25s var(--ease); }
.answer:hover { border-color: var(--hairline-strong); transform: translateY(-2px); }
.answer i { width: 9px; height: 9px; border-radius: 50%; }
.answer i.sev-red { background: var(--red); }
.answer i.sev-amber { background: var(--amber); clip-path: polygon(50% 0, 100% 100%, 0 100%); border-radius: 0; }
.answer i.sev-info { background: #7cc4ff; border-radius: 2px; }
.answer i.sev-hint { background: transparent; box-shadow: inset 0 0 0 1.5px var(--mute); }
.answer p { font-size: 14px; }
.answer code { font-family: var(--mono); font-size: 0.88em; color: var(--ink); background: var(--surface-3); padding: 1px var(--space-2); border-radius: var(--radius-sm); }
.chat-input { display: flex; gap: var(--space-3); padding: var(--space-4) var(--space-5) var(--space-2); border-top: 1px solid var(--hairline); background: var(--surface-2); }
.field { flex: 1; min-width: 0; display: flex; align-items: center; gap: var(--space-3); min-height: 48px; padding: 0 var(--space-3) 0 var(--space-4); border-radius: var(--radius-md); border: 1px solid var(--hairline); background: var(--canvas); }
.field input { flex: 1; min-width: 0; border: 0; background: none; color: var(--ink); font: 15px Inter, sans-serif; outline: none; }
.field kbd { padding: 2px var(--space-2); border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm); font: 11px/1.6 var(--mono); color: var(--mute); }
/* The send button: neon green border, glowing while it waits for a press. */
.send { display: grid; place-items: center; width: 48px; height: 48px; flex: none; border-radius: var(--radius-md); border: 1.5px solid var(--neon); background: rgba(57, 255, 159, 0.08); color: var(--neon); box-shadow: 0 0 0 0 rgba(57, 255, 159, 0); transition: background 0.2s, transform 0.15s, box-shadow 0.2s; }
.send:hover { background: rgba(57, 255, 159, 0.16); box-shadow: 0 0 18px rgba(57, 255, 159, 0.35); }
.send:active { transform: scale(0.95); }
.send:disabled { border-color: var(--hairline-strong); background: none; color: var(--mute); box-shadow: none; cursor: default; animation: none; }
.chat.ready .send { animation: neon 1.8s ease-in-out infinite; }
.chat-foot { padding: var(--space-2) var(--space-5) var(--space-4); background: var(--surface-2); font-size: 12px; color: var(--mute); }

/* 6 · The ending: the monitor holds up the change card */
.end { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-8); align-items: center; padding: var(--space-8); border: 1px solid var(--hairline); border-radius: var(--radius-lg); background: var(--surface); }
.mascot { position: relative; max-width: 360px; justify-self: center; animation: float 5s var(--ease) infinite; }
.mascot img { filter: invert(0.94); }
.sign { position: absolute; left: 27%; top: 37%; width: 64%; height: 30%; display: grid; place-content: center; gap: 2px; text-align: center; font: 600 clamp(10px, 1.5vw, 15px)/1.35 var(--mono); color: var(--teal); transform: rotate(-1deg); }
.sign small { font-weight: 400; color: var(--body); font-size: 0.8em; }
.end-copy { display: grid; gap: var(--space-5); }
.install { display: grid; gap: var(--space-3); counter-reset: n; margin: 0; padding: 0; list-style: none; }
.install li { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: var(--space-3); align-items: start; font-size: 15px; }
.install li::before { counter-increment: n; content: counter(n); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--hairline-strong); color: var(--ink); font-size: 13px; }
.install b { color: var(--ink); font-weight: 500; }
.install a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--hairline-strong); }
.install a:hover { text-decoration-color: #39ff9f; }

/* Footer */
.foot { margin-top: var(--section); border-top: 1px solid var(--hairline); padding-block: var(--space-6) var(--space-7); font-size: 14px; color: var(--mute); }
.foot .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4) var(--space-6); }
.foot .nav { gap: var(--space-5); }
.made a { color: var(--ink); }

/* 404 */
.lost { min-height: 70vh; display: grid; place-content: center; justify-items: center; gap: var(--space-5); padding-block: var(--space-8); text-align: center; }
.lost img { width: min(520px, 90vw); filter: invert(0.94); }

@keyframes blink { 50% { opacity: 0.25; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes think { 0%, 60%, 100% { opacity: 0.3; transform: none; } 30% { opacity: 1; transform: translateY(-3px); } }
@keyframes neon { 0%, 100% { box-shadow: 0 0 4px rgba(57, 255, 159, 0.25); } 50% { box-shadow: 0 0 20px rgba(57, 255, 159, 0.6), 0 0 0 4px rgba(57, 255, 159, 0.12); } }
@keyframes chip { 0% { opacity: 0; transform: translateY(10px) scale(0.94); } 6%, 52% { opacity: 1; transform: none; } 60%, 100% { opacity: 0; transform: translateY(-8px) scale(0.98); } }
@keyframes steam { 0% { opacity: 0; transform: translateY(6px); } 40% { opacity: 0.9; } 100% { opacity: 0; transform: translateY(-10px); } }

@media (max-width: 1200px) {
  .hero-row { grid-template-columns: minmax(0, 1fr); }
  .duo { grid-template-columns: minmax(0, 0.6fr) auto minmax(0, 1.5fr); }
}
@media (max-width: 960px) {
  .duo { grid-template-columns: minmax(0, 1fr); }
  .duo-arrow { justify-self: center; transform: rotate(90deg); }
  .duo-dev { max-width: 420px; justify-self: center; width: 100%; }
  .hero-grid, .cost, .end { grid-template-columns: minmax(0, 1fr); }
  .globe-stage { max-width: 420px; }
  .editor-body { grid-template-columns: 40px minmax(0, 1fr); }
  .panel { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--hairline); }
  .step { grid-template-columns: minmax(0, 1fr); gap: var(--space-3); }
  .answer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .end { padding: var(--space-6); }
}
@media (max-width: 640px) {
  .top .nav a:not(.btn) { display: none; }
  .answer-grid, .stats { grid-template-columns: minmax(0, 1fr); }
  .chat-log { padding: var(--space-4); }
  .chat-tags { display: none; }
  .field kbd { display: none; }
  .code { font-size: 12px; }
  .code .ln { padding-inline: var(--space-3); gap: var(--space-3); }
  .duo { padding: var(--space-4); }
  .end { padding: var(--space-5); }
  .bubble { display: none; }
  .mini-body { grid-template-columns: 24px minmax(0, 1fr); height: auto; }
  .mini-code { min-height: 170px; }
  .mini-chat { grid-column: 1 / -1; min-height: 120px; border-left: 0; border-top: 1px solid var(--hairline); }
  .chip { font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .chip { opacity: 1; position: static; display: inline-block; margin: var(--space-1); }
}