/* Drive Down Under — uses the Australia.md "Sovereign Archive" tokens */
:root {
  --clr-surface: #0a160f;
  --clr-surface-container: #16221b;
  --clr-surface-container-high: #202d25;
  --clr-primary: #71dc8a;
  --clr-primary-container: #00843d;
  --clr-on-primary: #003916;
  --clr-gold: #fecc00;
  --clr-tertiary: #abc7ff;
  --clr-on-surface: #d8e6da;
  --clr-on-surface-variant: #bdcabb;
  --clr-outline: #889487;
  --clr-outline-variant: #3e4a3e;
  --clr-error: #ffb4ab;
  --font-headline: 'Space Grotesk', 'Noto Sans JP', 'Noto Sans KR', 'PingFang TC', 'PingFang SC', 'Hiragino Sans', 'Malgun Gothic', 'Microsoft JhengHei', sans-serif;
  --font-body: 'Inter', 'PingFang TC', 'PingFang SC', 'Hiragino Sans', 'Apple SD Gothic Neo', 'Malgun Gothic', 'Microsoft JhengHei', 'Noto Sans CJK TC', sans-serif;
  --radius: 0.375rem;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--clr-surface);
  color: var(--clr-on-surface);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  overflow: hidden;
}
#world { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }
#flash { position: fixed; inset: 0; pointer-events: none; opacity: 0; }
#flash.on { animation: siren 0.9s linear 1; }
@keyframes siren {
  0%, 100% { opacity: 0; }
  20% { opacity: 0.4; background: #ff5a4d; }
  50% { opacity: 0.4; background: #3b7bff; }
  80% { opacity: 0.4; background: #ff5a4d; }
}
@media (prefers-reduced-motion: reduce) { #flash.on { animation: none; } }

.top {
  position: fixed; top: 0; left: 0; right: 0; z-index: 3;
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.6rem 1rem;
  background: linear-gradient(#0a160fe6, #0a160f00);
}
.brand { display: flex; align-items: center; gap: 0.5rem; color: var(--clr-on-surface); text-decoration: none; font-family: var(--font-headline); font-weight: 700; white-space: nowrap; }
.logo-mark { background: var(--clr-primary-container); color: #e7ffe6; padding: 0.1rem 0.4rem; border-radius: 0.2rem; font-size: 0.8rem; letter-spacing: 0.05em; }
.hud { display: flex; gap: 0.4rem; flex: 1; flex-wrap: wrap; justify-content: center; }
.chip { background: #05110acc; border: 1px solid var(--clr-outline-variant); border-radius: 999px; padding: 0.15rem 0.7rem; font-size: 0.82rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.chip:first-child { color: var(--clr-gold); font-weight: 600; }
.lang { background: var(--clr-surface-container); color: var(--clr-on-surface); border: 1px solid var(--clr-outline); border-radius: var(--radius); padding: 0.35rem 0.5rem; font: inherit; font-size: 0.9rem; }

.ui { position: fixed; left: 0; right: 0; bottom: 2.6rem; z-index: 2; display: flex; justify-content: center; padding: 0 1rem; pointer-events: none; max-height: calc(100% - 6.5rem); }
.panel {
  pointer-events: auto;
  width: min(100%, 44rem);
  max-height: 100%;
  overflow-y: auto;
  background: #0a160fee;
  border: 1px solid var(--clr-outline-variant);
  border-top: 3px solid var(--clr-primary-container);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem 1.25rem;
  backdrop-filter: blur(6px);
}
.panel.home { width: min(100%, 60rem); }
.title { font-family: var(--font-headline); font-size: clamp(1.6rem, 4vw, 2.4rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.4rem; }
.tagline { color: var(--clr-on-surface-variant); margin: 0 0 1rem; max-width: 46rem; }
.eyebrow { color: var(--clr-primary); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 0.35rem; }
.q { font-family: var(--font-headline); font-size: clamp(1.1rem, 2.6vw, 1.4rem); line-height: 1.35; margin: 0 0 0.8rem; }
.hint { color: var(--clr-on-surface-variant); font-size: 0.9rem; margin: -0.3rem 0 0.8rem; }
.big { font-family: var(--font-headline); font-size: 3rem; color: var(--clr-gold); margin: 0.2rem 0; font-variant-numeric: tabular-nums; }

.modes { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 0.75rem; }
.mode { background: var(--clr-surface-container); border: 1px solid var(--clr-outline-variant); border-radius: var(--radius); padding: 0.9rem 1rem 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.mode h2 { font-family: var(--font-headline); font-size: 1.15rem; margin: 0; color: var(--clr-primary); }
.mode p { margin: 0; color: var(--clr-on-surface-variant); font-size: 0.92rem; flex: 1; }

.btn {
  font: inherit; font-weight: 600; color: var(--clr-on-surface);
  background: var(--clr-surface-container-high);
  border: 1px solid var(--clr-outline);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem; cursor: pointer; text-align: left;
}
.btn:hover:not(:disabled) { border-color: var(--clr-primary); }
.btn:focus-visible, .lang:focus-visible, select:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--clr-gold); outline-offset: 2px; }
.btn.primary { background: var(--clr-primary); color: var(--clr-on-primary); border-color: var(--clr-primary); text-align: center; }
.btn:disabled { cursor: default; opacity: 0.75; }
.state-row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.8rem; }
.mode .state-row { margin-bottom: 0; }
.btn.state { flex: 1; min-width: 5.5rem; text-align: center; font-family: var(--font-headline); font-size: 1.15rem; display: flex; flex-direction: column; align-items: center; }
.btn.state small { font-family: var(--font-body); font-weight: 400; font-size: 0.72rem; color: var(--clr-on-surface-variant); }
.btn.state[aria-pressed="true"] { background: var(--clr-primary-container); border-color: var(--clr-primary); }
.options { display: grid; gap: 0.5rem; }
.btn.option { display: flex; gap: 0.7rem; align-items: flex-start; font-weight: 500; }
.num { flex: none; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--clr-surface); border: 1px solid var(--clr-outline); display: grid; place-items: center; font-size: 0.8rem; font-family: var(--font-headline); }
.btn.right { border-color: var(--clr-primary); background: #00843d55; opacity: 1; }
.btn.wrong { border-color: var(--clr-error); background: #ff5a4d2e; opacity: 1; }
.btn.right .num { background: var(--clr-primary); color: var(--clr-on-primary); }

.feedback { margin-top: 0.9rem; padding: 0.8rem 0.9rem; border-left: 3px solid var(--clr-primary); background: var(--clr-surface-container); border-radius: 0 var(--radius) var(--radius) 0; }
.feedback.bad { border-left-color: var(--clr-error); }
.verdict { font-family: var(--font-headline); color: var(--clr-primary); }
.feedback.bad .verdict { color: var(--clr-error); }
.why { margin: 0.3rem 0 0.5rem; }
.official { font-size: 0.88rem; color: var(--clr-on-surface-variant); margin-bottom: 0.5rem; }
.official summary { cursor: pointer; color: var(--clr-tertiary); }
.official p { margin: 0.3rem 0 0; }
.warn { color: var(--clr-gold); font-size: 0.88rem; margin: 0.3rem 0; }
.sources { font-size: 0.85rem; color: var(--clr-on-surface-variant); margin: 0; }
.src-link, .foot a { color: var(--clr-tertiary); }
.next { margin-top: 0.9rem; width: 100%; }
.row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.8rem; }

.lic-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 0.6rem; margin-bottom: 0.9rem; }
.field { display: grid; gap: 0.25rem; font-size: 0.82rem; color: var(--clr-on-surface-variant); }
.field select { font: inherit; font-size: 0.95rem; color: var(--clr-on-surface); background: var(--clr-surface-container); border: 1px solid var(--clr-outline); border-radius: var(--radius); padding: 0.5rem; }
.lic-card { background: var(--clr-surface-container); border: 1px solid var(--clr-outline-variant); border-radius: var(--radius); padding: 0.75rem 0.9rem; margin-bottom: 0.6rem; }
.lic-card h3 { font-family: var(--font-headline); font-size: 1rem; color: var(--clr-primary); margin: 0; }

.foot { position: fixed; left: 0; right: 0; bottom: 0; z-index: 3; display: flex; gap: 1rem; justify-content: space-between; align-items: center; padding: 0.35rem 1rem; background: #05110af2; border-top: 1px solid var(--clr-outline-variant); font-size: 0.72rem; color: var(--clr-on-surface-variant); }
.foot p { margin: 0; }
.footer-built-by { white-space: nowrap; }

@media (min-width: 901px) {
  .ui.side { left: auto; right: 1rem; top: 4rem; bottom: 2.8rem; width: 27rem; padding: 0; align-items: center; max-height: none; }
  .ui.side .panel { max-height: 100%; }
}
@media (max-width: 640px) {
  .top { padding: 0.5rem 0.75rem; gap: 0.5rem; flex-wrap: wrap; }
  .hud { order: 3; flex-basis: 100%; justify-content: flex-start; }
  .brand #brand { display: none; }
  .lang { margin-left: auto; }
  .ui { padding: 0 0.5rem; bottom: 4.6rem; max-height: 58%; }
  .panel { padding: 0.9rem 0.9rem 1rem; }
  .panel.home { max-height: 100%; }
  .foot { flex-direction: column; align-items: flex-start; gap: 0; font-size: 0.62rem; line-height: 1.35; padding: 0.3rem 0.75rem; }
}