@font-face { font-family: "Zen Maru Gothic"; src: url("fonts/ZenMaruGothic-Medium.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Zen Maru Gothic"; src: url("fonts/ZenMaruGothic-Bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Inter"; src: url("fonts/Inter.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #F5F7FA; --ink: #1B2A4A; --sub: #5C6B84; --road: #C7D2E3; --edge: #9FB0C9;
  --accent: #F08C00; --warn: #E03131; --green: #0CA678; --heatG: #12B886; --stop: #C4453C; --white: #fff;
  --maru: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", "Hiragino Sans", sans-serif;
  --num: "Inter", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  background-image: linear-gradient(rgba(159,176,201,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(159,176,201,.18) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--ink); font-family: var(--maru); font-weight: 500; line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
.top { display: flex; justify-content: space-between; align-items: center; max-width: 1240px; margin: 0 auto; padding: 14px 16px 0; }
.badge { border: 2.5px solid var(--sub); color: var(--sub); border-radius: 10px; padding: 3px 12px; font-weight: 700; letter-spacing: .05em; font-size: 15px; }
button { font-family: var(--maru); font-weight: 700; font-size: 15px; color: var(--ink); background: var(--white); border: 2px solid var(--ink); border-radius: 999px; padding: 7px 16px; cursor: pointer; }
button:hover { background: #EEF2F8; }
button.primary { background: var(--ink); color: #fff; }
button.primary:hover { background: #2B3D63; }
button:disabled { opacity: .45; cursor: default; }
.lang { border-color: var(--sub); color: var(--sub); padding: 4px 14px; }
main { max-width: 1240px; margin: 0 auto; padding: 0 16px 40px; }
h1 { font-size: clamp(26px, 4.2vw, 42px); margin: 14px 0 4px; line-height: 1.3; }
h2 { font-size: 24px; margin: 28px 0 10px; }
h3 { font-size: 18px; margin: 20px 0 4px; }
.lead { margin: 0 0 6px; color: var(--ink); }
.videolink a { color: var(--accent); font-weight: 700; }
.label, .ctlh, .statsh { font-weight: 700; font-size: 15px; color: var(--sub); margin-bottom: 6px; }
.ctlh b { color: var(--accent); font-family: var(--num); font-size: 18px; margin-left: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 2px solid var(--edge); color: var(--sub); background: var(--white); padding: 5px 14px; font-size: 15px; }
.chip[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: #fff; }
.presets { margin-top: 10px; }
.presets .chip { border-color: var(--accent); color: #9A5A00; }
.app { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 20px; margin-top: 18px; align-items: start; }
.mapwrap { position: relative; background: rgba(255,255,255,.7); border: 2px solid var(--edge); border-radius: 18px; padding: 10px; }
#map { width: 100%; aspect-ratio: 1 / 1; display: block; }
.maphud { position: absolute; left: 20px; top: 16px; background: rgba(245,247,250,.92); border-radius: 12px; padding: 4px 12px; font-size: 13px; color: var(--sub); }
.maphud b { font-family: var(--num); font-size: 20px; color: var(--ink); margin-left: 8px; font-variant-numeric: tabular-nums; }
.flash { position: absolute; inset: 10px; border-radius: 12px; pointer-events: none; box-shadow: inset 0 0 0 0 rgba(224,49,49,0); transition: box-shadow .25s; }
.flash.on { box-shadow: inset 0 0 0 6px rgba(224,49,49,.55); }
.legend { font-size: 13px; color: var(--sub); margin: 8px 4px 0; }
.panel { background: rgba(255,255,255,.88); border: 2px solid var(--edge); border-radius: 18px; padding: 16px; }
.ctl { margin-bottom: 14px; }
.hint { font-size: 13px; color: var(--sub); margin-top: 4px; }
input[type=range] { width: 100%; accent-color: var(--accent); }
.ticks { display: flex; justify-content: space-between; font-size: 12px; color: var(--sub); font-family: var(--num); }
.ticks span:first-child { font-family: var(--maru); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.seedrow { display: flex; gap: 6px; }
.seedrow input { width: 90px; font-family: var(--num); font-size: 16px; padding: 5px 8px; border: 2px solid var(--edge); border-radius: 10px; }
.seedrow button { padding: 5px 10px; font-size: 13px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; align-items: center; }
.stats { border-top: 2px dashed var(--road); padding-top: 10px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; }
.st span { display: block; font-size: 12.5px; color: var(--sub); line-height: 1.3; }
.st b { font-family: var(--num); font-size: 24px; font-variant-numeric: tabular-nums; }
.st.nm b, .st.cr b { color: var(--warn); }
.result canvas { width: 100%; max-width: 900px; height: auto; display: block; border-radius: 14px; box-shadow: 0 10px 30px rgba(27,42,74,.12); }
.copied { color: var(--green); font-weight: 700; }
.missions ul { list-style: none; padding: 0; margin: 0; }
.missions li { background: rgba(255,255,255,.88); border: 2px solid var(--edge); border-radius: 12px; padding: 8px 12px; margin-bottom: 8px; }
.missions li.done { border-color: var(--accent); }
.missions li.done::after { content: attr(data-done); color: var(--accent); font-weight: 700; margin-left: 8px; }
.explain p { margin: 4px 0; }
.explain ul { padding-left: 18px; font-size: 14px; }
.explain a { color: #2B5BB5; word-break: break-all; }
footer { text-align: center; color: var(--sub); font-size: 13px; padding: 10px 16px 30px; }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 420px) {
  .row2 { grid-template-columns: 1fr; }
  .st b { font-size: 20px; }
  button { font-size: 14px; }
}