/* Animations with Claude · a film-leader look: cream stock, ink, one safety-orange accent */

:root {
  --paper: #f3eee4;
  --paper-2: #e9e2d4;
  --card: #fbf8f2;
  --ink: #17140f;
  --ink-2: #4a443a;
  --line: #d6cdbb;
  --accent: #e5461c;
  --accent-ink: #ffffff;
  --teal: #1d6b73;
  --ph: #fde3b0;
  --ph-ink: #6b3b00;
  --code-bg: #1d1a15;
  --code-ink: #f1ead9;
  --shadow: 6px 6px 0 var(--ink);
  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #15130f;
    --paper-2: #1e1b16;
    --card: #211e18;
    --ink: #f1ead9;
    --ink-2: #bdb4a2;
    --line: #3b362d;
    --accent: #ff6a3d;
    --accent-ink: #15130f;
    --teal: #6cc3cb;
    --ph: #4a3410;
    --ph-ink: #ffd590;
    --code-bg: #0d0c0a;
    --code-ink: #f1ead9;
    --shadow: 6px 6px 0 #000;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #15130f; --paper-2: #1e1b16; --card: #211e18; --ink: #f1ead9; --ink-2: #bdb4a2;
  --line: #3b362d; --accent: #ff6a3d; --accent-ink: #15130f; --teal: #6cc3cb; --ph: #4a3410;
  --ph-ink: #ffd590; --code-bg: #0d0c0a; --code-ink: #f1ead9; --shadow: 6px 6px 0 #000; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 18px/1.6 var(--body);
}

a { color: var(--teal); text-underline-offset: 3px; }
code { font: 0.86em var(--mono); background: var(--paper-2); padding: 0.1em 0.35em; border-radius: 4px; }
q { quotes: "“" "”"; font-style: italic; }
b { font-weight: 700; }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.1; margin: 0 0 0.5em; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.4rem); letter-spacing: -0.02em; }
h4 { font-size: 1rem; margin-top: 0.4em; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 10; }
.skip:focus { left: 8px; }

/* ---------- hero ---------- */
.hero {
  background: var(--ink);
  color: var(--paper);
  padding: 64px 16px 0;
  position: relative;
  overflow: hidden;
}
:root[data-theme="dark"] .hero { background: #000; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero { background: #000; } }
.hero-in { max-width: 1180px; margin: 0 auto; }
.eyebrow { font: 600 0.8rem/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
.hero h1 { font-size: clamp(3rem, 9vw, 6.5rem); font-weight: 700; letter-spacing: -0.04em; margin: 0 0 20px; color: #f3eee4; }
.hl { color: var(--accent); }
.lede { max-width: 640px; font-size: 1.15rem; color: #d9d1bf; margin: 0 0 40px; }
.lede b { color: #fff; }

/* the step strip looks like a strip of film with sprocket holes */
.strip {
  list-style: none; margin: 0 -16px; padding: 22px 16px;
  display: flex; gap: 6px; overflow-x: auto;
  background:
    radial-gradient(circle at 50% 50%, #000 0 4px, transparent 4.5px) 0 4px / 22px 14px repeat-x,
    radial-gradient(circle at 50% 50%, #000 0 4px, transparent 4.5px) 0 calc(100% - 4px) / 22px 14px repeat-x,
    #2a251d;
  scrollbar-width: thin;
}
.strip li { flex: 0 0 auto; }
.strip a {
  display: flex; flex-direction: column; gap: 2px;
  min-width: 96px; padding: 10px 12px;
  background: #f3eee4; color: #17140f; text-decoration: none;
  font: 700 0.85rem/1.2 var(--display);
  border-radius: 3px;
  transition: transform 0.15s ease, background 0.15s ease;
}
.strip a span { font: 600 0.72rem var(--mono); color: #e5461c; }
.strip a:hover, .strip a:focus-visible { transform: translateY(-3px); background: #fff; }
.strip a.is-done { background: #c9e4dc; }

/* ---------- layout ---------- */
.layout { max-width: 1180px; margin: 0 auto; padding: 0 16px; display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 48px; }
.toc { position: sticky; top: 24px; align-self: start; padding-top: 56px; font-size: 0.9rem; }
.toc-h { font: 600 0.75rem var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); margin: 0 0 8px; }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.toc li a { display: block; padding: 3px 0 3px 12px; margin-left: -2px; border-left: 2px solid transparent; color: var(--ink-2); text-decoration: none; }
.toc li a:hover { color: var(--ink); }
.toc li a.active { color: var(--ink); border-left-color: var(--accent); font-weight: 700; }
.toc li a.is-done::after { content: " ✓"; color: var(--teal); }
.toc-sep { margin-top: 10px; }
.toc-progress { margin-top: 16px; font: 600 0.8rem var(--mono); color: var(--ink-2); }

main { padding: 56px 0 40px; min-width: 0; }
.block { margin-bottom: 72px; }
.block > p, .step > p { max-width: 70ch; }

/* ---------- films ---------- */
.films { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 24px; }
.film { margin: 0; background: var(--card); border: 2px solid var(--ink); box-shadow: var(--shadow); }
.film video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #000; }
.film figcaption { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 2px; font-size: 0.9rem; color: var(--ink-2); }
.film figcaption b { font-family: var(--display); font-size: 1.05rem; color: var(--ink); }
.film.wide { grid-column: 1 / -1; }
.film-files { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: baseline; margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); font: 0.78rem var(--mono); }
.film-files a { color: var(--teal); }
.film-files a.ff-story { font-weight: 600; color: var(--ink); background: var(--paper-2); border: 1.5px solid var(--ink); padding: 1px 8px; border-radius: 3px; text-decoration: none; }
.film-files a.ff-story:hover { background: var(--ph); }
.film-files small { font-size: 0.72rem; color: var(--ink-2); }
.ff-tools { flex-basis: 100%; color: var(--ink-2); }
.ff-tools a { margin-left: 4px; }
.ff-studio { flex-basis: 100%; color: var(--ink-2); }
.ff-studio code { font-size: 0.95em; }

/* Studio screenshot with numbered pins */
.studio { margin: 20px 0 12px; }
.studio-shot { position: relative; border: 2px solid var(--ink); box-shadow: var(--shadow); background: #fff; }
.studio-shot img { display: block; width: 100%; height: auto; }
.pin {
  position: absolute; transform: translate(-50%, -50%);
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff; border: 2px solid #fff;
  font: 700 0.85rem/24px var(--mono); text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.45);
}
.studio figcaption { font-size: 0.85rem; color: var(--ink-2); margin-top: 10px; }
ol.studio-key { padding: 0; list-style: none; counter-reset: k; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 10px 24px; margin: 18px 0; }
ol.studio-key li { counter-increment: k; position: relative; padding-left: 38px; font-size: 0.95rem; }
ol.studio-key li::before {
  content: counter(k); position: absolute; left: 0; top: 1px;
  width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #fff;
  font: 700 0.8rem/26px var(--mono); text-align: center;
}
kbd { font: 600 0.78em var(--mono); background: var(--card); border: 1.5px solid var(--ink-2); border-bottom-width: 3px; border-radius: 4px; padding: 0 5px; }
@media (max-width: 640px) { .pin { width: 20px; height: 20px; font-size: 0.65rem; line-height: 16px; border-width: 2px; } }
.new { align-self: flex-start; font: 600 0.7rem var(--mono); letter-spacing: 0.08em; text-transform: uppercase; background: var(--accent); color: var(--accent-ink); padding: 2px 8px; border-radius: 3px; margin-bottom: 4px; }
.cost { font: 0.75rem var(--mono); color: var(--teal); }
.cost.heavy { color: var(--accent); }

/* ---------- how ---------- */
.how { display: grid; gap: 28px; }
.how-diagram { display: flex; align-items: stretch; gap: 10px; flex-wrap: wrap; }
.hd-box { flex: 1 1 150px; background: var(--card); border: 2px solid var(--ink); padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.hd-box b { font-family: var(--mono); font-size: 0.9rem; }
.hd-box span { font-size: 0.85rem; color: var(--ink-2); line-height: 1.4; }
.hd-box.accent { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.hd-box.accent span { color: inherit; opacity: 0.9; }
.hd-arrow { align-self: center; font: 700 1.4rem var(--display); color: var(--accent); }
.how-text p { max-width: 70ch; }

.note { background: var(--paper-2); border-left: 4px solid var(--teal); padding: 12px 16px; border-radius: 0 6px 6px 0; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; margin: 20px 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--line); }
thead th { font-family: var(--display); border-bottom: 2px solid var(--ink); }
thead th small { display: block; font: 400 0.75rem var(--mono); color: var(--ink-2); }
.compare tbody th { font-family: var(--display); font-weight: 700; white-space: nowrap; }
.compare td:nth-child(2) { background: color-mix(in srgb, var(--accent) 7%, transparent); }

/* ---------- steps ---------- */
.steps-intro { margin-bottom: 28px; }
.step {
  position: relative;
  background: var(--card);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow);
  padding: 0 28px 24px;
  margin-bottom: 40px;
}
.step.is-done { box-shadow: 6px 6px 0 var(--teal); }
.slate {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin: 0 -28px 20px; padding: 14px 28px;
  background:
    repeating-linear-gradient(-45deg, var(--ink) 0 14px, var(--paper) 14px 28px) top / 100% 8px no-repeat,
    var(--paper-2);
  padding-top: 22px;
  border-bottom: 2px solid var(--ink);
}
.slate .num { font: 700 1.6rem var(--mono); color: var(--accent); }
.slate h3 { font-size: 1.45rem; margin: 0; flex: 1 1 auto; }
.done { font: 600 0.8rem var(--mono); display: inline-flex; align-items: center; gap: 6px; cursor: pointer; color: var(--ink-2); }
.done input { width: 18px; height: 18px; accent-color: var(--teal); }

.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }

pre { margin: 12px 0 18px; overflow-x: auto; }
pre.cmd, pre.code {
  background: var(--code-bg); color: var(--code-ink);
  padding: 14px 16px; border-radius: 6px;
  font: 0.85rem/1.55 var(--mono);
}
pre.cmd code, pre.code code { background: none; padding: 0; font-size: inherit; color: inherit; }

ul.checks, ol.checks, ul.files, ol.build { padding-left: 1.3em; }
ul.checks li, ol.checks li, ol.build li { margin-bottom: 6px; }
ul.files { list-style: none; padding: 0; }
ul.files li { padding: 6px 0; border-bottom: 1px dashed var(--line); }

/* ---------- prompts ---------- */
.prompt {
  margin: 16px 0 20px;
  border: 2px solid var(--ink);
  background: var(--paper);
  border-radius: 6px;
  overflow: hidden;
}
.prompt figcaption {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px 8px 12px;
  background: var(--paper-2);
  border-bottom: 2px solid var(--ink);
  font: 700 0.9rem var(--display);
}
.tag { font: 600 0.72rem var(--mono); background: var(--ink); color: var(--paper); padding: 3px 8px; border-radius: 3px; white-space: nowrap; }
.copy {
  margin-left: auto;
  font: 600 0.75rem var(--mono);
  background: var(--accent); color: var(--accent-ink);
  border: 0; border-radius: 3px; padding: 6px 12px; cursor: pointer;
}
.copy:hover { filter: brightness(1.08); }
.copy.ok { background: var(--teal); }
.prompt pre {
  margin: 0; padding: 14px 16px;
  white-space: pre-wrap; word-break: break-word;
  font: 0.86rem/1.6 var(--mono);
  color: var(--ink);
}
.ph { background: var(--ph); color: var(--ph-ink); border-radius: 3px; padding: 0 2px; }

.reply {
  margin: 14px 0 20px; padding: 14px 18px;
  border-left: 4px solid var(--accent);
  background: var(--paper-2);
  font-size: 0.95rem;
}
.reply p { margin: 0 0 8px; }
.reply p:last-child { margin: 0; }

.stickies { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin: 18px 0; }
.sticky { background: #fff1a8; color: #2a2410; padding: 14px; font-size: 0.9rem; line-height: 1.45; box-shadow: 3px 3px 0 rgba(0,0,0,0.25); }
.sticky:nth-child(even) { transform: rotate(1deg); }
.sticky:nth-child(odd) { transform: rotate(-1deg); }
.sticky b { display: block; font-family: var(--display); margin-bottom: 4px; }

/* ---------- model toggle: only the chosen model's content is shown ---------- */
html[data-model="strong"] [data-for="weak"],
html[data-model="weak"] [data-for="strong"] { display: none !important; }
i[data-for] { font-style: normal; }
html:not(.from-file) .only-file { display: none; }

.pick { margin: 0 0 40px; max-width: 760px; }
.pick-q { font: 600 0.8rem var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: #d9d1bf; margin: 0 0 10px; }
.pick-hint { font-size: 0.9rem; color: #b9b09d; margin: 10px 0 0; }
.mode-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 2px solid #f3eee4; border-radius: 8px; overflow: hidden; }
.mode-btn {
  display: flex; flex-direction: column; gap: 4px; text-align: left;
  font: 400 0.88rem/1.35 var(--body);
  background: transparent; color: #d9d1bf;
  border: 0; padding: 14px 16px; cursor: pointer;
}
.mode-btn + .mode-btn { border-left: 2px solid #f3eee4; }
.mode-btn b { font: 700 1.1rem var(--display); color: #f3eee4; }
.mode-btn[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
.mode-btn[aria-pressed="true"] b { color: var(--accent-ink); }
.mode-btn[aria-pressed="true"] b::before { content: "✓ "; }
.mode-btn:not([aria-pressed="true"]):hover { background: rgba(255, 255, 255, 0.08); }
.mode-btn:focus-visible { outline: 3px solid #fff1a8; outline-offset: -5px; }

/* the small toggles (contents and floating) sit on paper, not on the dark hero */
.mode-switch.small { border-color: var(--ink); border-radius: 6px; }
.mode-switch.small .mode-btn { font: 700 0.82rem var(--display); color: var(--ink); padding: 8px 10px; text-align: center; display: block; }
.mode-switch.small .mode-btn + .mode-btn { border-left-color: var(--ink); }
.mode-switch.small .mode-btn[aria-pressed="true"] { color: var(--accent-ink); }
.mode-switch.small .mode-btn:not([aria-pressed="true"]):hover { background: var(--paper-2); }
.mode-switch.small .mode-btn:focus-visible { outline-color: var(--teal); }
.toc-mode { margin-bottom: 22px; }

.mode-float {
  position: fixed; left: 50%; bottom: 14px; z-index: 5;
  transform: translate(-50%, 140%); transition: transform 0.2s ease;
  background: var(--card); border-radius: 8px; box-shadow: 4px 4px 0 var(--ink);
  width: min(320px, calc(100% - 32px));
}
.mode-float.show { transform: translate(-50%, 0); }
@media (min-width: 901px) { .mode-float { display: none; } }
@media (prefers-reduced-motion: reduce) { .mode-float { transition: none; } }

.mode-name { color: var(--accent); }
.mode-card { margin-top: 32px; background: var(--card); border: 2px solid var(--ink); box-shadow: 6px 6px 0 var(--accent); padding: 18px 22px 6px; }
.mode-card h3 { font-size: 1.3rem; }
.mode-card p { max-width: 70ch; }
.hl-ink { color: var(--accent); }
details.why, details.peek { margin-top: 18px; }
details.why > summary, details.peek > summary {
  cursor: pointer; font: 700 0.95rem var(--display); color: var(--teal);
  padding: 6px 0; list-style-position: outside;
}
details.peek { border-top: 1px dashed var(--line); padding-top: 8px; }
.pl-from { font: 600 0.72rem var(--mono); color: var(--ink-2); text-decoration: none; border: 1.5px solid var(--line); border-radius: 3px; padding: 2px 6px; margin-left: auto; white-space: nowrap; }
.pl-from:hover { color: var(--ink); border-color: var(--ink); }
.pl-from + .copy { margin-left: 0; }
.prompt-list { margin-top: 20px; }

.swatches { display: flex; gap: 8px; margin: -8px 0 18px; }
.swatches i { width: 44px; height: 28px; border: 2px solid var(--ink); }

/* real prompts */
.timeline { display: grid; gap: 28px; }
.tl-film h3 { font-size: 1.25rem; }
.tl-film h3 small { font: 400 0.8rem var(--mono); color: var(--ink-2); margin-left: 8px; }
.tl-film ol { margin: 0; padding: 0; list-style: none; counter-reset: m; border-left: 2px solid var(--line); }
.tl-film li { counter-increment: m; position: relative; padding: 8px 0 8px 22px; font-size: 0.95rem; }
.tl-film li::before {
  content: counter(m);
  position: absolute; left: -12px; top: 10px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--ink); color: var(--paper);
  font: 600 0.7rem/22px var(--mono); text-align: center;
}
.aside { display: block; font-size: 0.85rem; color: var(--ink-2); margin-top: 2px; }

.handin { background: var(--ink); color: var(--paper); padding: 28px 28px 20px; box-shadow: 6px 6px 0 var(--accent); }
.handin h2 { color: inherit; }
.handin b { color: var(--accent); }

.foot { border-top: 2px solid var(--ink); padding: 20px 16px 40px; text-align: center; font-size: 0.85rem; color: var(--ink-2); }
.foot p { max-width: 900px; margin: 0 auto; }

/* ---------- small screens ---------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .toc { display: none; }
  main { padding-top: 40px; }
  .foot { padding-bottom: 96px; }
}
@media (max-width: 640px) {
  body { font-size: 17px; }
  .films, .two { grid-template-columns: minmax(0, 1fr); }
  .step { padding: 0 16px 18px; }
  .slate { margin: 0 -16px 16px; padding-left: 16px; padding-right: 16px; }
  .mode-switch:not(.small) { grid-template-columns: minmax(0, 1fr); }
  .mode-switch:not(.small) .mode-btn + .mode-btn { border-left: 0; border-top: 2px solid #f3eee4; }
  .mode-card { padding: 14px 16px 4px; }
  .handin { padding: 22px 18px 14px; }
  .hd-arrow { display: none; }
  .compare tbody th { white-space: normal; }
}

@media print {
  .hero { background: none; color: var(--ink); }
  .toc, .copy, .done, .mode-float, .pick .mode-switch { display: none; }
  .step, .film { box-shadow: none; }
}