:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --blue: #2563eb;
  --green: #16a34a;
  --amber: #d97706;
  --red: #dc2626;
  --ocean: #e6eef6;
  --land: #ffffff;
  --land-off: #f1f5f9;
  --stroke: #b6c2d1;
  --ok1: #6fcf8a;
  --ok2: #f6d365;
  --ok3: #f5a35c;
  --fail: #ef6b6b;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }

/* Top bar */
.topbar {
  height: 52px;
  flex: none;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  z-index: 5;
}
.brand { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.brand span { color: var(--blue); }
.topbar-info { flex: 1; color: var(--muted); font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Buttons */
.btn {
  font: inherit;
  font-size: 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: #f1f5f9; }
.btn.primary { background: var(--text); color: #fff; border-color: var(--text); }
.btn.primary:hover { background: #1e293b; }
.btn.ghost { background: transparent; }
.btn.icon { width: 36px; height: 36px; padding: 0; font-size: 18px; line-height: 1; }
.btn:disabled { opacity: 0.5; cursor: default; }

/* Stage & map */
#stage { position: relative; flex: 1; min-height: 0; }
#map { width: 100%; height: 100%; display: block; background: var(--ocean); touch-action: none; cursor: grab; }
#map:active { cursor: grabbing; }

.country {
  fill: var(--land-off);
  stroke: var(--stroke);
  stroke-width: 0.6;
  vector-effect: non-scaling-stroke;
  stroke-linejoin: round;
  pointer-events: none;
  transition: fill 0.2s;
}
.country.inscope { fill: var(--land); pointer-events: all; cursor: pointer; }
.country.inscope:hover { fill: #dbeafe; }
.country.ok1, .marker.ok1 { fill: var(--ok1) !important; }
.country.ok2, .marker.ok2 { fill: var(--ok2) !important; }
.country.ok3, .marker.ok3 { fill: var(--ok3) !important; }
.country.fail, .marker.fail { fill: var(--fail) !important; }
.country.wrong, .marker.wrong { fill: var(--red) !important; }
.country.target, .marker.target { fill: var(--blue) !important; }
.country.selected, .marker.selected { fill: #93c5fd !important; }
.country.reveal, .marker.reveal { animation: pulse 0.9s ease-in-out infinite; fill: var(--fail) !important; }
.country.target { animation: glow 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { fill-opacity: 0.35; } }
@keyframes glow { 50% { fill-opacity: 0.6; } }

.marker {
  fill: rgba(255, 255, 255, 0.85);
  stroke: #64748b;
  vector-effect: non-scaling-stroke;
  stroke-width: 1;
  pointer-events: none;
}
.marker:not(.inscope) { opacity: 0; }
.marker.inscope { pointer-events: all; cursor: pointer; }
.marker.inscope:hover { fill: #dbeafe; }

.capital-dot { fill: var(--text); stroke: #fff; vector-effect: non-scaling-stroke; stroke-width: 1.5; pointer-events: none; }
.capital-label {
  font-weight: 600;
  fill: var(--text);
  paint-order: stroke;
  stroke: #fff;
  stroke-width: 3px;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}

/* Floating cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.06);
}
.floating { position: absolute; z-index: 3; }

#prompt {
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(460px, calc(100% - 32px));
  padding: 14px 18px 12px;
  text-align: center;
}
.prompt-head { display: flex; justify-content: space-between; align-items: center; font-size: 13px; }
.badge {
  font-family: var(--mono);
  font-size: 12px;
  background: #f1f5f9;
  border-radius: 999px;
  padding: 2px 10px;
}
.score { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.progress { height: 3px; background: #f1f5f9; border-radius: 3px; margin: 10px 0 12px; overflow: hidden; }
#progressBar { height: 100%; width: 0; background: var(--text); transition: width 0.3s; }
.prompt-body { font-size: 15px; color: var(--muted); }
.prompt-body strong { display: block; color: var(--text); font-size: 24px; letter-spacing: -0.01em; line-height: 1.25; margin-top: 2px; }
.prompt-body img.flag-big { display: block; margin: 6px auto 0; height: 84px; max-width: 100%; border: 1px solid var(--border); border-radius: 4px; }
.attempts { font-size: 12px; color: var(--muted); min-height: 18px; margin-top: 6px; }
.attempts .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #e2e8f0; margin: 0 2px; }
.attempts .dot.used { background: var(--red); }

#answer {
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, calc(100% - 32px));
  padding: 14px;
}
.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.choice {
  font: inherit;
  font-size: 15px;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.choice:hover:not(:disabled) { border-color: #94a3b8; background: #f8fafc; }
.choice .key { font-family: var(--mono); font-size: 11px; color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 0 5px; }
.choice.correct { border-color: var(--green); background: rgba(22, 163, 74, 0.08); }
.choice.incorrect { border-color: var(--red); background: rgba(220, 38, 38, 0.08); opacity: 0.7; }
.choice.flag { justify-content: center; padding: 8px; position: relative; }
.choice.flag img { height: 64px; max-width: 100%; border: 1px solid var(--border); border-radius: 3px; }
.choice.flag .key { position: absolute; top: 6px; left: 6px; background: #fff; }

.type-row { display: flex; gap: 8px; }
.type-row input {
  flex: 1;
  font: inherit;
  font-size: 16px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  min-width: 0;
}
.type-row input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12); }
.shake { animation: shake 0.35s; }
@keyframes shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
.answer-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; gap: 8px; font-size: 14px; }
.answer-foot .msg { color: var(--muted); }
.msg.good { color: var(--green); }
.msg.bad { color: var(--red); }

#info {
  left: 16px;
  bottom: 16px;
  width: 260px;
  padding: 16px;
}
#info .info-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 8px; }
#info img { width: 100%; max-height: 150px; object-fit: contain; border: 1px solid var(--border); border-radius: 4px; background: #f8fafc; }
#info h3 { margin: 10px 0 4px; font-size: 18px; letter-spacing: -0.01em; }
#info dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; font-size: 13px; }
#info dt { color: var(--muted); }
#info dd { margin: 0; }
#info .close { position: absolute; top: 8px; right: 10px; border: 0; background: none; font-size: 18px; color: var(--muted); cursor: pointer; }

#search { top: 16px; left: 16px; width: min(300px, calc(100% - 80px)); padding: 6px; }
#search input { width: 100%; font: inherit; font-size: 15px; border: 0; outline: none; padding: 6px 8px; }

.zoom-ctrl { position: absolute; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 6px; z-index: 3; }

.tooltip {
  position: absolute;
  z-index: 4;
  pointer-events: none;
  background: var(--text);
  color: #fff;
  font-size: 13px;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
  transform: translate(-50%, -140%);
}
.tooltip.bad { background: var(--red); }

.toast {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(15, 23, 42, 0.88);
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  pointer-events: none;
}

/* Overlays */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: 32px 16px;
}
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  width: min(820px, 100%);
  padding: 28px;
}
.modal.narrow { width: min(560px, 100%); }
.modal h1 { margin: 0 0 4px; font-size: 24px; letter-spacing: -0.02em; }
.modal h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 22px 0 10px; font-weight: 600; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font: inherit;
  font-size: 14px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
}
.pill:hover { background: #f8fafc; }
.pill.active { background: var(--text); color: #fff; border-color: var(--text); }
.pill .n { font-family: var(--mono); font-size: 11px; opacity: 0.6; margin-left: 4px; }

.modes { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.mode {
  text-align: left;
  font: inherit;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  padding: 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
}
.mode:hover { border-color: #94a3b8; }
.mode.active { border-color: var(--text); box-shadow: inset 3px 0 0 var(--text); }
.mode .t { font-weight: 600; font-size: 15px; }
.mode .d { font-size: 13px; color: var(--muted); }
.mode .best { position: absolute; top: 12px; right: 12px; font-family: var(--mono); font-size: 11px; color: var(--green); background: rgba(22, 163, 74, 0.08); border-radius: 999px; padding: 1px 8px; }
.mode .group { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }

.options { display: flex; flex-wrap: wrap; gap: 0 40px; }
.modal-foot { display: flex; justify-content: flex-end; align-items: center; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
.modal-foot .muted { flex: 1; font-size: 13px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.stat { border: 1px solid var(--border); border-radius: 10px; padding: 12px; text-align: center; }
.stat .v { font-family: var(--mono); font-size: 22px; font-weight: 600; }
.stat .l { font-size: 12px; color: var(--muted); }
.mistakes { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; max-height: 280px; overflow-y: auto; }
.mistake { display: flex; align-items: center; gap: 8px; font-size: 13px; border: 1px solid var(--border); border-radius: 8px; padding: 6px 8px; border-left: 3px solid var(--red); }
.mistake img { width: 26px; height: 18px; object-fit: cover; border: 1px solid var(--border); border-radius: 2px; flex: none; }
.mistake small { display: block; color: var(--muted); font-size: 11px; }

.legend { display: flex; gap: 12px; font-size: 12px; color: var(--muted); flex-wrap: wrap; margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }

@media (max-width: 700px) {
  #prompt { top: 8px; padding: 10px 14px; }
  .prompt-body strong { font-size: 20px; }
  .prompt-body img.flag-big { height: 60px; }
  #answer { bottom: 8px; padding: 10px; }
  .choice { font-size: 14px; padding: 8px 10px; }
  .choice.flag img { height: 46px; }
  #info { left: 8px; right: 8px; width: auto; bottom: auto; top: 8px; padding: 10px 12px; display: grid; grid-template-columns: 70px 1fr; gap: 0 12px; align-items: center; }
  #info .info-label { display: none; }
  #info img { max-height: 50px; }
  #info h3 { margin: 0; font-size: 15px; }
  #info dl { font-size: 12px; }
  .in-game #info { top: auto; bottom: 150px; }
  .zoom-ctrl { right: 8px; bottom: auto; top: 50%; transform: translateY(-50%); }
  .modal { padding: 20px; }
  .stats { grid-template-columns: repeat(3, 1fr); }
}