/* Back to the Present
   One base identity (steel + signal orange, the "present" theme, keyed data-era="capsule")
   and the era skins.
   During play, <html data-era="1990s"> swaps the tokens below. */

:root,
[data-era="capsule"] {
  --bg: #d5dbd8;
  --bg-image: none;
  --panel: #f4f6f4;
  --ink: #17212a;
  --muted: #55626b;
  --line: #aeb8b4;
  --accent: #e8501c;
  --accent-ink: #ffffff;
  --on-bg: #17212a;
  --flap: #1d272e;
  --flap-ink: #f4f6f4;
  --radius: 14px;
  --radius-btn: 999px;
  --panel-border: 1px solid var(--line);
  --panel-shadow: 0 1px 0 rgba(23, 33, 42, 0.08);
  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --display-weight: 800;
  --display-tracking: 0.005em;
  --font-body: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"])[data-era="capsule"] {
    --bg: #11181c;
    --panel: #1b2429;
    --ink: #e6ecea;
    --muted: #9aa9a4;
    --line: #34423f;
    --accent: #ff6a33;
    --accent-ink: #11181c;
    --on-bg: #e6ecea;
    --flap: #0a0f12;
    --flap-ink: #ffd9c9;
    color-scheme: dark;
  }
}

/* ---- decade skins ---- */
[data-era="1960s"] {
  --bg: #efc14a;
  --bg-image: radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.35) 0 3px, transparent 4px), radial-gradient(circle at 80% 70%, rgba(194, 65, 12, 0.18) 0 6px, transparent 7px);
  --panel: #fff4d6;
  --ink: #2e2416;
  --muted: #6d5a3b;
  --line: #d9b25a;
  --accent: #c2410c;
  --accent-ink: #fff4d6;
  --on-bg: #2e2416;
  --flap: #2f6f5e;
  --flap-ink: #fff4d6;
  --radius: 26px;
  --font-display: "Shrikhand", Georgia, serif;
  --display-weight: 400;
  --display-tracking: 0;
}
[data-era="1970s"] {
  --bg: #5a3a22;
  --bg-image: linear-gradient(180deg, #e9842b 0 10px, #f2b544 10px 20px, #b8541e 20px 30px, transparent 30px);
  --panel: #f2e2c4;
  --ink: #2b1b0e;
  --muted: #73583c;
  --line: #c9a978;
  --accent: #e9842b;
  --accent-ink: #2b1b0e;
  --on-bg: #f2e2c4;
  --flap: #2b1b0e;
  --flap-ink: #f2b544;
  --radius: 20px;
  --font-display: "Righteous", "Trebuchet MS", sans-serif;
  --display-weight: 400;
  --display-tracking: 0.01em;
}
[data-era="1980s"] {
  --bg: #160f33;
  --bg-image: linear-gradient(transparent 62%, rgba(45, 226, 230, 0.16) 62.5%, transparent 63%), repeating-linear-gradient(90deg, rgba(255, 62, 157, 0.12) 0 1px, transparent 1px 44px);
  --panel: #22174a;
  --ink: #f4eeff;
  --muted: #b6a8e0;
  --line: #4b3a8f;
  --accent: #ff3e9d;
  --accent-ink: #160f33;
  --on-bg: #f4eeff;
  --flap: #0b0720;
  --flap-ink: #2de2e6;
  --radius: 4px;
  --radius-btn: 4px;
  --panel-shadow: 0 0 0 1px #2de2e6, 6px 6px 0 #ff3e9d;
  --panel-border: 0;
  --font-display: "Audiowide", "Arial Black", sans-serif;
  --display-weight: 400;
  --display-tracking: 0.02em;
  color-scheme: dark;
}
[data-era="1990s"] {
  --bg: #006b6b;
  --panel: #c3c3c3;
  --ink: #000000;
  --muted: #3a3a3a;
  --line: #808080;
  --accent: #000080;
  --accent-ink: #ffffff;
  --on-bg: #ffffff;
  --flap: #000080;
  --flap-ink: #ffffff;
  --radius: 0;
  --radius-btn: 0;
  --panel-border: 2px solid;
  --panel-shadow: inset -2px -2px 0 #808080, inset 2px 2px 0 #ffffff;
  --font-display: "VT323", "Courier New", monospace;
  --display-weight: 400;
  --display-tracking: 0.02em;
  --font-body: Tahoma, Verdana, "Segoe UI", sans-serif;
}
[data-era="1990s"] .prompt-text { font-size: clamp(2.2rem, 10vw, 2.8rem); line-height: 0.95; }
[data-era="1990s"] .flap { border-radius: 0; }
[data-era="1990s"] .wordmark svg { color: #ffffff; }
[data-era="1990s"] .stamp { font-size: 2.1rem; }
[data-era="1990s"] .prompt-card,
[data-era="1990s"] .reveal-card { border-color: #ffffff #808080 #808080 #ffffff; }
[data-era="2000s"] {
  --bg: #dcebfa;
  --bg-image: linear-gradient(180deg, #f6fbff 0%, #cfe3f7 100%);
  --panel: #ffffff;
  --ink: #1a2b40;
  --muted: #536a85;
  --line: #a9c6e6;
  --accent: #2b7de9;
  --accent-ink: #ffffff;
  --on-bg: #1a2b40;
  --flap: #1a2b40;
  --flap-ink: #bfe3ff;
  --radius: 16px;
  --panel-shadow: 0 8px 20px rgba(43, 125, 233, 0.18), inset 0 1px 0 #ffffff;
  --font-display: "Varela Round", "Trebuchet MS", sans-serif;
  --display-weight: 400;
  --display-tracking: 0;
}
[data-era="2000s"] .btn.primary { background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.45) 0 48%, transparent 52%); }
[data-era="2010s"] {
  --bg: #f6d5cf;
  --panel: #ffffff;
  --ink: #2d2a2a;
  --muted: #6e6464;
  --line: #e9b9b0;
  --accent: #1f9e8f;
  --accent-ink: #ffffff;
  --on-bg: #2d2a2a;
  --flap: #2d2a2a;
  --flap-ink: #f6d5cf;
  --radius: 6px;
  --radius-btn: 6px;
  --panel-shadow: none;
  --font-display: "Lobster", Georgia, serif;
  --display-weight: 400;
  --display-tracking: 0;
}
[data-era="2020s"] {
  --bg: #ecebff;
  --bg-image: radial-gradient(60% 40% at 85% 0%, rgba(91, 61, 245, 0.18), transparent), radial-gradient(50% 40% at 0% 100%, rgba(255, 140, 200, 0.2), transparent);
  --panel: #ffffff;
  --ink: #191934;
  --muted: #5c5c85;
  --line: #d4d1fb;
  --accent: #5b3df5;
  --accent-ink: #ffffff;
  --on-bg: #191934;
  --flap: #191934;
  --flap-ink: #ecebff;
  --radius: 22px;
  --panel-shadow: 0 12px 32px rgba(25, 25, 52, 0.08);
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --display-weight: 700;
  --display-tracking: -0.01em;
}

/* ---- base ---- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--bg);
  background-image: var(--bg-image);
  background-attachment: fixed;
  color: var(--on-bg);
  font: 400 17px/1.5 var(--font-body);
  transition: background-color 0.5s ease, color 0.5s ease;
}
button, input { font: inherit; color: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.app {
  max-width: 460px;
  margin: 0 auto;
  padding: max(10px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 48px max(16px, env(safe-area-inset-left));
}

.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px 0 14px; }
.wordmark {
  display: inline-flex; align-items: center; gap: 8px;
  background: none; border: 0; padding: 4px 0; cursor: pointer;
  font: var(--display-weight) 1.35rem/1 var(--font-display);
  letter-spacing: var(--display-tracking);
  color: var(--on-bg);
}
.wordmark svg { width: 26px; height: 26px; color: var(--accent); }
.bar-right { display: flex; align-items: center; gap: 10px; }
.streak { font-weight: 700; font-variant-numeric: tabular-nums; }
.icon-btn {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid currentColor; background: transparent; color: var(--on-bg);
  font-weight: 700; cursor: pointer;
}

/* ---- the dial (split-flap year) ---- */
.dial-wrap { display: grid; justify-items: center; gap: 8px; margin: 4px 0 22px; }
.dial { display: flex; gap: 6px; }
.flap {
  position: relative;
  width: clamp(58px, 18vw, 76px);
  height: clamp(84px, 26vw, 110px);
  overflow: hidden;
  border-radius: 10px;
  background: var(--flap);
  color: var(--flap-ink);
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.35), 0 2px 0 rgba(0, 0, 0, 0.15);
}
.flap::after { /* the hinge line */
  content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 2px;
  background: rgba(0, 0, 0, 0.45); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}
.strip { display: flex; flex-direction: column; transition: transform 1.1s cubic-bezier(0.2, 0.9, 0.25, 1); }
.strip span {
  display: grid; place-items: center;
  height: clamp(84px, 26vw, 110px);
  font: 900 clamp(64px, 21vw, 92px)/1 "Big Shoulders Display", "Arial Narrow", sans-serif;
  font-variant-numeric: tabular-nums;
}
.dial-caption { margin: 0; font-weight: 600; color: var(--on-bg); opacity: 0.85; font-size: 0.95rem; }

@media (prefers-reduced-motion: reduce) {
  .strip { transition: none; }
  body { transition: none; }
}

/* ---- type ---- */
.hero-title, .screen-title, .prompt-text {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  letter-spacing: var(--display-tracking);
  text-wrap: balance;
  margin: 0;
}
.hero-title { font-size: clamp(2.3rem, 11vw, 3.1rem); line-height: 0.98; text-align: center; }
.screen-title { font-size: 2rem; line-height: 1.05; }
.lede { margin: 14px auto 22px; max-width: 34ch; text-align: center; color: var(--on-bg); opacity: 0.85; }
.lede.small { text-align: left; margin: 8px 0 18px; font-size: 0.95rem; }
.meta-line { text-align: center; margin: 10px 0 0; font-size: 0.92rem; opacity: 0.8; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 20px;
  border-radius: var(--radius-btn);
  border: 2px solid transparent;
  cursor: pointer; font-weight: 700;
  transition: transform 0.08s ease;
}
.btn:active { transform: translateY(1px); }
.btn.primary { background-color: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; border-color: currentColor; color: var(--on-bg); }
.btn.big { width: 100%; min-height: 58px; font-size: 1.1rem; }
[data-era="1990s"] .btn { box-shadow: inset -2px -2px 0 #404040, inset 2px 2px 0 #dfdfdf; border: 0; }
[data-era="1990s"] .btn.ghost { background: #c3c3c3; color: #000; }

.home-links { display: grid; gap: 10px; margin-top: 18px; }

/* pre-launch countdown */
.countdown { display: grid; justify-items: center; gap: 4px; margin: 6px 0 8px; color: var(--on-bg); text-align: center; }
.countdown-label { font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.8; }
.countdown-time { font: 800 clamp(2rem, 9vw, 2.8rem)/1 var(--font-display); font-variant-numeric: tabular-nums; }
.help-links { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0 0 6px; }
.help-links .credits-link { margin: 0; }
.help-contact { margin: 0 0 20px; font-size: 0.92rem; overflow-wrap: anywhere; }
.help-contact a { color: inherit; font-weight: 600; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 26px 0 0; }
.stats div { display: grid; justify-items: center; gap: 2px; }
.stats dt { order: 2; font-size: 0.78rem; opacity: 0.8; text-align: center; }
.stats dd { order: 1; margin: 0; font: 800 1.7rem/1 var(--font-display); font-variant-numeric: tabular-nums; }

/* ---- panels ---- */
.prompt-card, .reveal-card {
  background: var(--panel);
  color: var(--ink);
  border: var(--panel-border);
  border-color: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--panel-shadow);
  padding: 20px;
}
.progress { display: flex; gap: 6px; list-style: none; padding: 0; margin: 0 0 14px; }
.progress li { flex: 1; height: 6px; border-radius: 3px; background: currentColor; opacity: 0.22; color: var(--on-bg); }
.progress li.done { opacity: 0.9; }
.progress li.now { opacity: 0.9; background: var(--accent); }
.prompt-cat { margin: 0 0 6px; color: var(--muted); font-weight: 600; font-size: 0.92rem; }
.prompt-text { font-size: clamp(1.7rem, 7.5vw, 2.15rem); line-height: 1.08; margin-bottom: 18px; }
#answer-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
#answer {
  min-width: 0; min-height: 52px; padding: 0 14px;
  border-radius: calc(var(--radius) * 0.6);
  border: 2px solid var(--line);
  background: color-mix(in srgb, var(--panel) 85%, var(--bg));
  color: var(--ink); font-size: 1.1rem;
}
#answer:focus { border-color: var(--accent); outline: none; }
[data-era="1990s"] #answer { background: #fff; border-color: #808080 #fff #fff #808080; }
.timer { height: 5px; margin-top: 14px; border-radius: 3px; overflow: hidden; background: color-mix(in srgb, var(--ink) 12%, transparent); }
.timer-fill { height: 100%; width: 100%; background: var(--accent); transform-origin: left; }
.hint { min-height: 1.4em; margin: 10px 0 0; font-size: 0.88rem; color: var(--muted); }

/* ---- reveal ---- */
.stamp {
  display: inline-flex; align-items: center; gap: 10px;
  font: var(--display-weight) 1.7rem/1.1 var(--font-display);
  letter-spacing: var(--display-tracking);
}
.stamp .emoji { font-size: 1.6rem; }
.your { margin: 10px 0 2px; }
.points { margin: 0 0 16px; font-weight: 700; font-variant-numeric: tabular-nums; }
.points .bonus { color: var(--accent); }
.top-title { margin: 0 0 8px; font-size: 0.92rem; color: var(--muted); font-weight: 600; }
.toplist { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.toplist li {
  display: grid; grid-template-columns: 2.2rem 1fr auto; gap: 8px; align-items: baseline;
  padding: 7px 8px; border-radius: calc(var(--radius) * 0.4);
}
.toplist li.mine { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.toplist .rk { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--muted); }
.toplist .nm { font-weight: 600; min-width: 0; }
.toplist .sub { display: block; font-weight: 400; font-size: 0.85rem; color: var(--muted); }
.toplist .tag { font-size: 0.78rem; color: var(--muted); white-space: nowrap; }
.source { margin: 14px 0 0; font-size: 0.8rem; color: var(--muted); }
#screen-reveal .btn.big { margin-top: 16px; position: sticky; bottom: max(12px, env(safe-area-inset-bottom)); box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18); }

/* ---- results ---- */
.card-img { width: 100%; height: auto; border-radius: 16px; display: block; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18); }
.share-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 16px; }
.share-row .btn.primary { grid-column: 1 / -1; }
.toast { min-height: 1.4em; margin: 8px 0 0; text-align: center; font-weight: 600; }
.recap { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 8px; }
.recap li {
  display: grid; grid-template-columns: 2rem 1fr auto; gap: 10px; align-items: center;
  background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px;
}
.recap .q { font-size: 0.85rem; color: var(--muted); }
.recap .a { font-weight: 600; }
.recap .p { font-weight: 700; font-variant-numeric: tabular-nums; }
.next-in { text-align: center; margin: 18px 0 0; font-weight: 600; }

/* ---- packs / archive / help ---- */
.pack-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.pack {
  display: grid; align-content: end; gap: 4px; min-height: 104px; padding: 14px;
  text-align: left; cursor: pointer;
  background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius);
}
.pack b { font: var(--display-weight) 1.4rem/1 var(--font-display); }
.pack span { font-size: 0.85rem; color: var(--muted); }
.rules { padding-left: 1.1em; display: grid; gap: 10px; margin: 14px 0 22px; }
.rules.small { font-size: 0.88rem; gap: 6px; }
.sub-title { margin: 0; font-size: 1rem; }

/* Long scenario prompts (Life in another time, over 90 characters): smaller in every era skin. */
:root .prompt-text.long { font-size: clamp(1.25rem, 5.4vw, 1.55rem); line-height: 1.18; }