@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  --bg: #F7F4EC;
  --bg-card: #FFFFFF;
  --ink: #1A2238;
  --ink-2: #4F5D75;
  --line: #E2DCC9;
  --accent: #2563EB;
  --accent-2: #1D4ED8;
  --good: #16A34A;
  --good-bg: #DCFCE7;
  --bad: #DC2626;
  --bad-bg: #FEE2E2;
  --warn-bg: #FEF3C7;
  --gold: #C8941A;
  --map-fill: #DDE3EC;
  --map-stroke: #FFFFFF;
  --map-hover: #B8C4D6;
  --shadow: 0 1px 2px rgba(20,30,55,0.06), 0 6px 22px rgba(20,30,55,0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
header.top a.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
header.top a.logo .star { color: var(--accent); }
header.top nav { display: flex; gap: 6px; }
header.top nav a {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink-2);
  border: 1px solid transparent;
}
header.top nav a:hover { color: var(--ink); border-color: var(--line); }
header.top nav a.active {
  color: var(--accent);
  border-color: var(--accent);
}

h1.title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(28px, 4vw, 38px);
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
p.subtitle {
  color: var(--ink-2);
  margin: 0 0 24px;
  font-size: 15px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  border: 0;
  font-family: inherit;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { background: #0E1426; transform: translateY(-1px); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.ghost:hover { background: var(--bg-card); }
.btn.accent { background: var(--accent); }
.btn.accent:hover { background: var(--accent-2); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.scoreboard {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 18px;
}
.stat {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  min-width: 110px;
}
.stat .k {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 600;
}
.stat .v {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-top: 2px;
}
.stat.good .v { color: var(--good); }
.stat.bad .v { color: var(--bad); }

.prompt {
  background: linear-gradient(135deg, #1A2238 0%, #2C3760 100%);
  color: #fff;
  border-radius: 14px;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.prompt .label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.6;
}
.prompt .target {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  margin-top: 4px;
}
.prompt .skip {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.18);
}
.prompt .skip:hover { background: rgba(255,255,255,0.16); }

.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s ease;
  z-index: 100;
}
.toast.show { opacity: 1; }
.toast.good { background: var(--good); color: #fff; }
.toast.bad { background: var(--bad); color: #fff; }

.map-wrap {
  position: relative;
}
svg.usmap {
  width: 100%;
  height: auto;
  display: block;
}
svg.usmap path.state {
  fill: var(--map-fill);
  stroke: var(--map-stroke);
  stroke-width: 1;
  cursor: pointer;
  transition: fill .15s ease;
}
svg.usmap path.state:hover { fill: var(--map-hover); }
svg.usmap path.state.correct { fill: var(--good); }
svg.usmap path.state.wrong { fill: var(--bad); }
svg.usmap path.state.reveal { fill: var(--gold); }
svg.usmap path.state.locked { cursor: default; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--ink-2);
}
.legend .swatch { display: inline-flex; align-items: center; gap: 6px; }
.legend .swatch i {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
@media (min-width: 720px) {
  .choice-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.choice {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 14px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all .15s ease;
  color: var(--ink);
}
.choice:hover { border-color: var(--accent); transform: translateY(-1px); }
.choice.correct { border-color: var(--good); background: var(--good-bg); color: var(--good); }
.choice.wrong { border-color: var(--bad); background: var(--bad-bg); color: var(--bad); }
.choice:disabled { cursor: default; }
.choice:disabled:hover { transform: none; border-color: var(--line); }
.choice.correct:disabled, .choice.correct:disabled:hover {
  border-color: var(--good); background: var(--good-bg); color: var(--good);
}
.choice.wrong:disabled, .choice.wrong:disabled:hover {
  border-color: var(--bad); background: var(--bad-bg); color: var(--bad);
}

.progressbar {
  width: 100%;
  height: 6px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
  margin: 12px 0 22px;
}
.progressbar .fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width .3s ease;
}

.endcard {
  text-align: center;
  padding: 36px 24px;
}
.endcard .big {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 8px 0;
}
.endcard .lbl {
  color: var(--ink-2);
  font-size: 14px;
}
.endcard .actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 22px;
  flex-wrap: wrap;
}

.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 16px;
}
.toolbar .modes {
  display: inline-flex;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
}
.toolbar .modes button {
  border: 0;
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--ink-2);
}
.toolbar .modes button.active {
  background: var(--ink);
  color: #fff;
}

footer.bottom {
  margin-top: 36px;
  text-align: center;
  font-size: 12px;
  color: var(--ink-2);
  opacity: 0.7;
}

/* --- v2: nuove challenge --- */
.stat.urgent .v { color: var(--bad); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: 0.4; } }

.heart { color: var(--bad); font-size: 20px; margin-right: 2px; }
.heart.lost { color: var(--line); }

.choice { position: relative; }
.choice .kbd {
  position: absolute;
  top: 6px; left: 8px;
  font-size: 10px;
  font-weight: 700;
  color: var(--ink-2);
  opacity: 0.45;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
}
@media (hover: none) { .choice .kbd { display: none; } }

.endcard .newbest {
  display: inline-block;
  background: var(--warn-bg);
  color: var(--gold);
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
}