/* Costar Chain — projection-booth dark by default, cool daylight in light mode */
:root {
  color-scheme: light;
  --ground: #eef1f5;
  --surface: #ffffff;
  --surface-2: #e2e7ee;
  --ink: #141a26;
  --muted: #5b6477;
  --line: #c9d0db;
  --accent: #b0650a;          /* film-stock amber, darkened for daylight */
  --accent-ink: #ffffff;
  --accent-soft: rgba(176, 101, 10, .12);
  --film: #1b2233;            /* the filmstrip is always dark celluloid */
  --film-ink: #efe7d8;
  --sprocket: #eef1f5;
  --shadow: 0 12px 30px -18px rgba(20, 26, 38, .45);

  --display: "Big Shoulders Display", "Oswald", "Arial Narrow", Impact, sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ground: #0f1420;
    --surface: #182032;
    --surface-2: #222b40;
    --ink: #efe7d8;
    --muted: #8e97aa;
    --line: #2c3650;
    --accent: #e8a33d;
    --accent-ink: #1a1206;
    --accent-soft: rgba(232, 163, 61, .14);
    --film: #070a11;
    --film-ink: #efe7d8;
    --sprocket: #0f1420;
    --shadow: 0 14px 34px -18px rgba(0, 0, 0, .8);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --ground: #0f1420;
  --surface: #182032;
  --surface-2: #222b40;
  --ink: #efe7d8;
  --muted: #8e97aa;
  --line: #2c3650;
  --accent: #e8a33d;
  --accent-ink: #1a1206;
  --accent-soft: rgba(232, 163, 61, .14);
  --film: #070a11;
  --film-ink: #efe7d8;
  --sprocket: #0f1420;
  --shadow: 0 14px 34px -18px rgba(0, 0, 0, .8);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 16px/1.55 var(--body);
}
img { max-width: 100%; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: 20px;
  padding-block: 40px 56px;
  display: grid;
  gap: 32px;
}

/* ---------- Masthead ---------- */
.masthead { display: grid; gap: 10px; }
.eyebrow {
  margin: 0;
  font: 500 12px/1.4 var(--mono);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
}
h1 {
  margin: 0;
  font: 900 clamp(44px, 11vw, 124px)/.86 var(--display);
  overflow-wrap: anywhere;
  text-transform: uppercase;
  letter-spacing: -.01em;
}
h1 .amp { color: var(--accent); padding-inline: .06em; }
.lede { margin: 0; max-width: 60ch; color: var(--muted); font-size: 17px; text-wrap: pretty; }

/* ---------- Marquee (the pair picker) ---------- */
.marquee {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-areas: "a swap b" "act act act";
  gap: 14px 16px;
  align-items: end;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.slot[data-side="a"] { grid-area: a; }
.slot[data-side="b"] { grid-area: b; }
.swap { grid-area: swap; }
.actions { grid-area: act; display: flex; flex-wrap: wrap; gap: 10px; }

.slot { display: grid; gap: 6px; min-width: 0; }
.slot label {
  font: 500 12px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
}
.picker { position: relative; display: flex; align-items: center; }
.picker input {
  width: 100%;
  min-width: 0;
  padding: 12px 14px;
  font: 700 26px/1.1 var(--display);
  letter-spacing: .01em;
  text-transform: uppercase;
  background: var(--ground);
  border: 1px solid var(--line);
  border-radius: 4px;
}
.picker input::placeholder { color: var(--muted); opacity: .7; }
.picker input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.picked-face {
  position: absolute; left: 8px;
  width: 36px; height: 36px; border-radius: 50%; object-fit: cover;
  background: var(--surface-2);
}
.picker.has-face input { padding-left: 54px; }

.suggest {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 20;
  margin: 0; padding: 4px; list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
  max-height: 360px; overflow-y: auto;
}
.suggest li {
  display: grid; grid-template-columns: 40px 1fr; gap: 10px; align-items: center;
  padding: 6px 8px; border-radius: 4px; cursor: pointer;
}
.suggest li[aria-selected="true"], .suggest li:hover { background: var(--accent-soft); }
.suggest img, .suggest .noface {
  width: 40px; height: 40px; border-radius: 50%; object-fit: cover; background: var(--surface-2);
}
.suggest .nm { font-weight: 600; line-height: 1.2; }
.suggest .kf { font-size: 13px; color: var(--muted); line-height: 1.3; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.suggest .empty { display: block; padding: 10px; color: var(--muted); cursor: default; }

.swap {
  width: 44px; height: 50px; margin-bottom: 1px;
  font-size: 22px; line-height: 1;
  background: transparent; border: 1px solid var(--line); border-radius: 4px; cursor: pointer;
}
.swap:hover { border-color: var(--accent); color: var(--accent); }

.go, .ghost {
  padding: 12px 20px; border-radius: 4px; cursor: pointer;
  font: 800 18px/1 var(--display); letter-spacing: .08em; text-transform: uppercase;
}
.go { background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); }
.go:hover { filter: brightness(1.08); }
.go:disabled { opacity: .5; cursor: progress; }
.ghost { background: transparent; border: 1px solid var(--line); }
.ghost:hover { border-color: var(--accent); color: var(--accent); }
.ghost.small { padding: 8px 14px; font-size: 14px; justify-self: start; }

/* ---------- Status / counters ---------- */
.stage { display: grid; gap: 24px; }
.wrap > *, .stage > *, .result > * { min-width: 0; }
.status { display: grid; gap: 12px; }
.counters {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: 6px; overflow: hidden;
}
.counters > div { background: var(--surface); padding: 12px 14px; display: grid; gap: 2px; }
.num { font: 500 24px/1.1 var(--mono); font-variant-numeric: tabular-nums; }
.lbl { font: 500 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.ticker {
  margin: 0; min-height: 1.5em;
  font: 400 14px/1.5 var(--mono); color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ticker b { color: var(--accent); font-weight: 500; }
.searching .counters > div { animation: flick 1.6s ease-in-out infinite; }
.searching .counters > div:nth-child(2) { animation-delay: .2s; }
.searching .counters > div:nth-child(3) { animation-delay: .4s; }
.searching .counters > div:nth-child(4) { animation-delay: .6s; }
@keyframes flick { 50% { background: var(--surface-2); } }

.message {
  margin: 0; padding: 16px 18px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 6px;
  max-width: 70ch;
}

/* ---------- Result ---------- */
.result { display: grid; gap: 22px; }
.verdict {
  margin: 0;
  font: 800 clamp(30px, 5vw, 48px)/1 var(--display);
  text-transform: uppercase; letter-spacing: .01em; text-wrap: balance;
}
.verdict em { font-style: normal; color: var(--accent); }

/* The filmstrip: dark celluloid with sprocket holes top and bottom */
.strip-scroll { overflow-x: auto; border-radius: 6px; }
.strip {
  --hole: 10px;
  list-style: none; margin: 0;
  display: flex; align-items: stretch; gap: 0;
  width: max-content; min-width: 100%;
  padding: 26px 18px;
  background:
    radial-gradient(circle at center, var(--sprocket) 0 3.5px, transparent 4px) 0 8px / 22px 12px repeat-x,
    radial-gradient(circle at center, var(--sprocket) 0 3.5px, transparent 4px) 0 calc(100% - 8px) / 22px 12px repeat-x,
    var(--film);
  color: var(--film-ink);
}
.frame {
  display: grid; justify-items: center; align-content: start; gap: 8px;
  width: 118px; text-align: center; text-decoration: none; color: inherit;
  opacity: 0; transform: translateY(8px);
  animation: develop .5s ease-out forwards;
  animation-delay: calc(var(--i) * 110ms);
}
.frame .pic { background: #2a3247; object-fit: cover; display: block; }
.frame.person .pic { width: 104px; height: 104px; border-radius: 50%; border: 2px solid var(--film-ink); }
.frame.movie .pic { width: 92px; height: 138px; border-radius: 3px; box-shadow: 0 6px 18px -8px #000; }
.frame .t { font: 700 17px/1.1 var(--display); text-transform: uppercase; letter-spacing: .02em; }
.frame .s { font: 400 12px/1.3 var(--mono); color: #a9b0c0; }
.frame.movie .t { font-family: var(--body); font-weight: 600; font-size: 13px; text-transform: none; letter-spacing: 0; }
.frame:hover .t { color: #e8a33d; }
.frame.endpoint .pic { border-color: #e8a33d; border-width: 3px; }
.link {
  align-self: center; width: 24px; flex: none; height: 2px; margin-top: -30px;
  background: repeating-linear-gradient(90deg, #e8a33d 0 6px, transparent 6px 10px);
  opacity: 0; animation: develop .4s ease-out forwards;
  animation-delay: calc(var(--i) * 110ms);
}
@keyframes develop { to { opacity: 1; transform: none; } }

.frame .pic.noimg {
  display: grid; place-items: center;
  font: 800 30px/1 var(--display); color: #6d7690;
}

/* The written-out chain */
.story { margin: 0; padding: 0; list-style: none; display: grid; gap: 0; max-width: 72ch; }
.story li {
  display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 12px 0;
  border-top: 1px solid var(--line);
}
.story li:last-child { border-bottom: 1px solid var(--line); }
.story .deg { font: 500 13px/1.6 var(--mono); color: var(--accent); }
.story strong { font-weight: 600; }
.story .role { color: var(--muted); }

/* ---------- Colophon ---------- */
.colophon {
  display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  padding-top: 20px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
}
.colophon p { margin: 0; max-width: 80ch; }
.tmdb-mark {
  font: 800 14px/1 var(--display); letter-spacing: .1em; padding: 6px 8px;
  border: 1px solid var(--line); border-radius: 3px; color: var(--ink); text-decoration: none;
}

/* ---------- Narrow screens ---------- */
@media (max-width: 720px) {
  .wrap { padding-inline: 16px; padding-block: 28px 40px; gap: 24px; }
  .marquee { grid-template-columns: 1fr; grid-template-areas: "a" "swap" "b" "act"; padding: 16px; }
  .swap { justify-self: center; height: 36px; transform: rotate(90deg); margin: 0; }
  .counters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .actions > button { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  .frame, .link { animation: none; opacity: 1; transform: none; }
  .searching .counters > div { animation: none; }
}