/* a valley seen through time: the diorama and its instruments at the top, the story below, one season per chapter */
:root {
  --paper: #f7f4ec;
  --sky: #e2ecef;
  --card: #fffdf8;
  --ink: #1b2130;
  --ink-soft: #4f586b;
  --line: #d8d2c3;
  --water: #2f6290;
  --water-soft: #c7dbe8;
  --rice: #b8861f;
  --rice-bright: #e3be47;
  --persimmon: #c2452c;
  --persimmon-soft: #f3d4ca;
  --cedar: #2a5e38;
  --night: rgba(16, 22, 40, 0);
  --glass: rgba(255, 253, 248, 0.62);
  --glass-strong: rgba(255, 253, 248, 0.55);
  --glass-edge: rgba(255, 255, 255, 0.6);
  --glass-shine: rgba(255, 255, 255, 0.7);
  --pixel: "DotGothic16", "Hiragino Maru Gothic ProN", ui-monospace, monospace;
  --display: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", ui-rounded, system-ui, sans-serif;
  --body: "Zen Kaku Gothic New", "Hiragino Sans", system-ui, -apple-system, sans-serif;
  --gutter: max(16px, env(safe-area-inset-left, 0px));
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #10141c; --sky: #161f2c; --card: #171d29; --ink: #efe9dc; --ink-soft: #a7afbd; --line: #2a3243;
    --water: #8ab8db; --water-soft: #20344a; --rice: #e3be47; --rice-bright: #efd270; --persimmon: #f08f74;
    --persimmon-soft: #3c2520; --cedar: #8cc79a; --night: rgba(16, 22, 40, 0.42); color-scheme: dark;
    --glass: rgba(18, 23, 34, 0.6); --glass-strong: rgba(18, 23, 34, 0.5); --glass-edge: rgba(255, 255, 255, 0.12); --glass-shine: rgba(255, 255, 255, 0.08);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.7 var(--body);
  font-feature-settings: "palt" 1;
}
img { max-width: 100%; }
a { color: var(--water); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--water); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); text-wrap: balance; margin: 0; line-height: 1.3; letter-spacing: 0.01em; }
p { margin: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.eyebrow { font-family: var(--display); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--rice); }

/* ---------------------------------------------------------------- top bar */
.top {
  position: fixed; top: 0; left: 0; right: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 10px max(16px, env(safe-area-inset-right, 0px)) 10px var(--gutter);
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(1.5); -webkit-backdrop-filter: blur(18px) saturate(1.5);
  border-bottom: 1px solid var(--glass-edge);
}
#story section, #game, #act { scroll-margin-top: 70px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 900; font-size: 1.1rem; }
.brand img { image-rendering: pixelated; }
.brand .kana { font-weight: 500; font-size: 0.8rem; color: var(--ink-soft); }
.top nav { display: flex; gap: 18px; margin-left: auto; }
.top nav a { color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; }
.top nav a:hover { color: var(--ink); }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang button { font: 500 0.82rem var(--body); border: 0; background: transparent; color: var(--ink-soft); padding: 4px 12px; cursor: pointer; min-height: 32px; }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
@media (max-width: 760px) { .top nav { display: none; } .lang { margin-left: auto; } }

/* ---------------------------------------------------------------- the simulator */
/* the valley fills the first screen; everything you read or touch floats over it on frosted glass */
.sim { position: relative; }
.hero { position: relative; height: 100vh; height: 100svh; min-height: 560px; overflow: hidden; background: #9ec3d6; }
#valley { position: absolute; inset: 0; width: 100%; height: 100%; display: block; image-rendering: pixelated; image-rendering: crisp-edges;
  touch-action: pan-y; cursor: grab; -webkit-user-select: none; user-select: none; }
.hero.zoomed #valley { touch-action: none; }
.hero.dragging #valley { cursor: grabbing; }
.dusk { position: absolute; inset: 0; background: var(--night); mix-blend-mode: multiply; pointer-events: none; }
.glass {
  background: var(--glass); color: var(--ink);
  -webkit-backdrop-filter: blur(18px) saturate(1.5); backdrop-filter: blur(18px) saturate(1.5);
  border: 1px solid var(--glass-edge); border-radius: 20px;
  box-shadow: 0 18px 44px -26px rgba(16, 22, 40, 0.6), inset 0 1px 0 var(--glass-shine);
}
.intro, .stats, .dock, .zoom { position: absolute; z-index: 2; }
.intro { left: max(16px, env(safe-area-inset-left, 0px)); top: calc(76px + env(safe-area-inset-top, 0px)); width: min(440px, calc(100% - 32px)); padding: 20px 22px; display: grid; gap: 10px; }
.intro h1 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 900; }
.lede { color: var(--ink-soft); font-size: 0.95rem; }
.stats { right: max(16px, env(safe-area-inset-right, 0px)); top: calc(76px + env(safe-area-inset-top, 0px)); width: min(520px, calc(100% - 32px)); padding: 18px 20px 20px; display: grid; gap: 14px; }
.clock { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.year { font-family: var(--pixel); font-size: clamp(3.6rem, 7vw, 6rem); line-height: 0.9; color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }
.when { display: grid; gap: 4px; padding-bottom: 6px; }
.tag { justify-self: start; font-size: 0.8rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; background: var(--water-soft); color: var(--water); }
.tag.future { background: var(--persimmon-soft); color: var(--persimmon); }
.tag.future.act { background: var(--water-soft); color: var(--water); }
.date { font-size: 0.85rem; color: var(--ink-soft); }
.readouts { margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px 16px; }
.ro { display: grid; gap: 2px; min-width: 0; }
.ro dt { font-size: 0.74rem; color: var(--ink-soft); line-height: 1.3; }
.ro dd { margin: 0; display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
.ro b { font-family: var(--pixel); font-weight: 400; font-size: 1.45rem; line-height: 1.1; font-variant-numeric: tabular-nums; }
.ro i { font-style: normal; font-size: 0.74rem; font-variant-numeric: tabular-nums; color: var(--ink-soft); }
.ro i.down { color: var(--persimmon); }
.ro i.up { color: var(--cedar); }
.ro.live dt::after { content: " ●"; color: var(--cedar); font-size: 0.7rem; }
.dock { left: 50%; transform: translateX(-50%); bottom: calc(18px + env(safe-area-inset-bottom, 0px)); width: min(980px, calc(100% - 32px)); padding: 12px 14px; display: grid; gap: 10px; }
.controls { display: flex; gap: 14px; align-items: center; }
.play { display: inline-flex; align-items: center; gap: 10px; font: 700 1rem var(--display); color: var(--paper); background: var(--ink); border: 0; border-radius: 999px; padding: 0 20px; min-height: 46px; cursor: pointer; white-space: nowrap; }
.play:hover { background: var(--water); }
.play .ico { font-size: 0.85rem; }
.scrub { flex: 1; display: flex; min-width: 0; }
.scrub input { width: 100%; accent-color: var(--ink); min-height: 44px; }
.choices { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.seg { display: inline-flex; padding: 3px; gap: 2px; border-radius: 999px; background: var(--glass-strong); border: 1px solid var(--glass-edge); }
.seg button { font: 500 0.86rem var(--body); border: 0; border-radius: 999px; padding: 6px 14px; min-height: 36px; background: transparent; color: var(--ink-soft); cursor: pointer; }
.seg button[aria-checked="true"] { background: var(--ink); color: var(--paper); }
.seg button[data-path="act"][aria-checked="true"] { background: var(--water); color: #fff; }
.seg button[data-path="base"][aria-checked="true"] { background: var(--persimmon); color: #fff; }
.seg.small button { font-size: 0.78rem; padding: 6px 11px; }
.live-line { font-size: 0.78rem; color: var(--ink-soft); }
.place { margin: 0; font-size: 0.8rem; color: var(--ink-soft); }
.place #wild-share { font-family: var(--pixel); color: var(--ink); }
.zoom { right: max(16px, env(safe-area-inset-right, 0px)); top: 50%; transform: translateY(-50%); display: grid; gap: 8px; }
.zoom button { width: 44px; height: 44px; border-radius: 999px; cursor: pointer; font: 700 1.3rem/1 var(--display); padding: 0; }
.timeline { max-width: 1180px; margin: 0 auto; padding: 40px max(16px, env(safe-area-inset-right, 0px)) 8px var(--gutter); display: grid; gap: 8px; }
.timeline svg { width: 100%; height: auto; display: block; overflow: visible; }
.timeline figcaption { font-size: 0.85rem; color: var(--ink-soft); }
.timeline .note { opacity: 0.85; }
.ax { font: 12px var(--body); fill: var(--ink-soft); }
.ax-line { stroke: var(--line); stroke-width: 1; }
.lbl { font: 700 13px var(--display); }

/* narrow screens: one stats card on top, the controls at the bottom, the title moves below the valley */
@media (max-width: 900px) {
  .intro { position: static; width: auto; margin: 0; border-radius: 0; border-width: 1px 0 0; box-shadow: none;
    -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--paper);
    padding: 28px max(16px, env(safe-area-inset-right, 0px)) 4px var(--gutter); }
  .stats { left: max(12px, env(safe-area-inset-left, 0px)); right: max(12px, env(safe-area-inset-right, 0px)); width: auto; top: calc(64px + env(safe-area-inset-top, 0px)); padding: 12px 14px 14px; gap: 10px; border-radius: 18px; }
  .year { font-size: 3.2rem; }
  .readouts { gap: 8px 12px; }
  .ro b { font-size: 1.12rem; }
  .ro dt { font-size: 0.68rem; }
  .ro i { font-size: 0.68rem; }
  .dock { left: max(12px, env(safe-area-inset-left, 0px)); right: max(12px, env(safe-area-inset-right, 0px)); width: auto; transform: none; bottom: calc(12px + env(safe-area-inset-bottom, 0px)); padding: 10px; gap: 8px; border-radius: 18px; }
  .live-line { display: none; }
  .seg button { padding: 6px 10px; font-size: 0.8rem; }
  .seg.small button { padding: 6px 8px; font-size: 0.72rem; }
  .zoom { right: max(12px, env(safe-area-inset-right, 0px)); top: 54%; }
  .zoom button { width: 40px; height: 40px; }
  .place { font-size: 0.74rem; }
}
@media (max-width: 420px) {
  .play { padding: 0 14px; font-size: 0.92rem; }
  .readouts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------------------------------------------------------------- the story */
.ch {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center;
  padding-block: 88px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  max-width: 1180px; margin: 0 auto;
}
.ch.sky { max-width: none; background: var(--sky); padding-left: max(16px, env(safe-area-inset-left, 0px), calc((100% - 1180px) / 2)); padding-right: max(16px, env(safe-area-inset-right, 0px), calc((100% - 1180px) / 2)); }
.ch-text { display: grid; gap: 18px; min-width: 0; max-width: 60ch; }
.ch h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 900; }
.num { font-family: var(--pixel); font-size: 1rem; color: var(--rice); }
.big { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.big span { font-family: var(--pixel); font-size: 2.6rem; line-height: 1; }
.big small { color: var(--ink-soft); }
.small { font-size: 0.85rem; color: var(--ink-soft); }
.say { display: flex; gap: 14px; align-items: center; }
.say img { image-rendering: pixelated; border-radius: 12px; background: var(--card); border: 1px solid var(--line); flex: none; }
.say p { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; font-size: 0.95rem; }
.ch-fig { margin: 0; min-width: 0; display: grid; gap: 10px; }
.ch-fig svg { width: 100%; height: auto; overflow: visible; }
.ch-fig figcaption { font-size: 0.82rem; color: var(--ink-soft); }
.kcal { display: grid; gap: 8px; }
.kbar { display: grid; grid-template-columns: 7.5em minmax(0, 1fr) 4.5em; gap: 10px; align-items: center; font-size: 0.85rem; }
.kbar .track { height: 14px; border-radius: 4px; background: var(--water-soft); overflow: hidden; position: relative; }
.kbar .all { position: absolute; inset: 0 auto 0 0; background: repeating-linear-gradient(135deg, var(--line) 0 4px, transparent 4px 8px); border-radius: 4px; }
.kbar .dom { position: absolute; inset: 0 auto 0 0; background: var(--water); border-radius: 4px; }
.kbar .v { font-variant-numeric: tabular-nums; color: var(--ink-soft); text-align: right; }
.trio { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.trio div, .duo div { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: grid; gap: 6px; align-content: start; }
.trio b, .duo b { font-family: var(--pixel); font-weight: 400; font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1; }
.trio span, .duo span, .duo small { font-size: 0.85rem; color: var(--ink-soft); }
.duo { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.duo .base b { color: var(--persimmon); }
.duo .act b { color: var(--water); }
.ch.wide { grid-template-columns: minmax(0, 1fr); gap: 28px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; counter-reset: step; }
.steps li { counter-increment: step; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; display: grid; gap: 6px; align-content: start; }
.steps li::before { content: counter(step); font-family: var(--pixel); color: var(--rice); }
.steps h3 { font-size: 1.05rem; }
.steps .lift { font-family: var(--pixel); font-size: 0.95rem; color: var(--water); }
.steps p { font-size: 0.88rem; color: var(--ink-soft); }
.you { background: var(--sky); border-radius: 18px; padding: 22px 24px; display: grid; gap: 10px; }
.you h3 { font-size: 1.2rem; }
.you ul { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; }
.you li::marker { color: var(--rice); }
.game { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); }
.store { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.badge { display: inline-flex; align-items: center; gap: 10px; background: #000; color: #fff; border-radius: 12px; padding: 8px 16px 8px 12px; min-height: 52px; }
.badge small { display: block; font-size: 0.68rem; line-height: 1.1; opacity: 0.85; }
.badge b { display: block; font: 600 1.25rem/1.1 -apple-system, "Helvetica Neue", sans-serif; letter-spacing: -0.01em; }
.badge img { image-rendering: pixelated; }
.meta { font-size: 0.85rem; color: var(--ink-soft); }
.phones { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.phones img { width: 100%; height: auto; border-radius: 20px; border: 1px solid var(--line); box-shadow: 0 16px 34px -22px rgba(27, 33, 48, 0.5); }
.phones img:nth-child(2) { transform: translateY(24px); }
@media (max-width: 900px) {
  .ch, .ch.sky, .game { grid-template-columns: minmax(0, 1fr); gap: 28px; padding-block: 64px; }
  .trio { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 520px) { .kbar { grid-template-columns: 6em minmax(0, 1fr) 4em; } }

/* ---------------------------------------------------------------- sources */
.sources { background: var(--ink); color: var(--paper); padding-block: 64px 48px; padding-left: max(16px, env(safe-area-inset-left, 0px), calc((100% - 1180px) / 2)); padding-right: max(16px, env(safe-area-inset-right, 0px), calc((100% - 1180px) / 2)); display: grid; gap: 18px; }
.sources a { color: var(--rice-bright); }
.sources p { max-width: 75ch; color: color-mix(in srgb, var(--paper) 80%, transparent); font-size: 0.9rem; }
.sources ul { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 10px 24px; font-size: 0.82rem; }
.sources li { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.sources .fine { font-size: 0.8rem; }
@media (prefers-color-scheme: dark) { .sources { background: #0a0d13; } }