:root {
  --bg: #0f1620;
  --panel: #1a2533;
  --panel-light: #233044;
  --accent: #4fd1c5;
  --accent-dark: #2ca39a;
  --text: #eef3f8;
  --text-dim: #9fb0c2;
  --correct: #4ade80;
  --incorrect: #f87171;
  --land: #3a4a5e;
  --land-hover: #4a5d75;
  --land-stroke: #1b2735;
  --highlight: #f6ad55;
  --selected: #4fd1c5;
  --ocean: #0b1219;
  --missed: #f6ad55;

  --diff-1: #4ade80;
  --diff-2: #facc15;
  --diff-3: #fb923c;
  --diff-4: #f87171;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

#app {
  max-width: 1040px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
}

#app.wide { max-width: 1500px; }

.screen { display: none; }
.screen.active { display: block; }
.hidden { display: none !important; }

h1 {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 4px;
  letter-spacing: 1px;
}

.subtitle {
  text-align: center;
  color: var(--text-dim);
  margin-top: 0;
  margin-bottom: 20px;
}

.how-to-box {
  background: var(--panel);
  border: 1px solid var(--panel-light);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 26px;
}

.how-to-box p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.5;
}

.how-to-box em, .how-to-body em { color: var(--highlight); font-style: normal; font-weight: 600; }

kbd {
  background: var(--panel-light);
  border: 1px solid #34465e;
  border-radius: 4px;
  padding: 0 5px;
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--text);
}

/* ── Setup ───────────────────────────────────────────── */

.setup-group { margin-bottom: 24px; }

.setup-group h2 {
  font-size: 1.05rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
  font-weight: 600;
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.option-btn {
  background: var(--panel);
  border: 2px solid transparent;
  border-radius: 10px;
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 4px;
  font: inherit;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

.option-btn:hover { background: var(--panel-light); transform: translateY(-1px); }
.option-btn.selected { border-color: var(--accent); background: var(--panel-light); }

.options-grid.four-col { grid-template-columns: repeat(4, 1fr); }
.options-grid.three-col { grid-template-columns: repeat(3, 1fr); }

.setup-group.disabled .options-grid { opacity: 0.35; pointer-events: none; }

.setup-group h2 .hint {
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  font-size: 0.85rem;
  opacity: 0.8;
}

#difficulty-options .option-btn[data-difficulty="1"] { border-color: color-mix(in srgb, var(--diff-1) 35%, transparent); }
#difficulty-options .option-btn[data-difficulty="2"] { border-color: color-mix(in srgb, var(--diff-2) 35%, transparent); }
#difficulty-options .option-btn[data-difficulty="3"] { border-color: color-mix(in srgb, var(--diff-3) 35%, transparent); }
#difficulty-options .option-btn[data-difficulty="4"] { border-color: color-mix(in srgb, var(--diff-4) 35%, transparent); }
#difficulty-options .option-btn[data-difficulty="1"].selected { border-color: var(--diff-1); box-shadow: 0 0 0 1px var(--diff-1) inset; }
#difficulty-options .option-btn[data-difficulty="2"].selected { border-color: var(--diff-2); box-shadow: 0 0 0 1px var(--diff-2) inset; }
#difficulty-options .option-btn[data-difficulty="3"].selected { border-color: var(--diff-3); box-shadow: 0 0 0 1px var(--diff-3) inset; }
#difficulty-options .option-btn[data-difficulty="4"].selected { border-color: var(--diff-4); box-shadow: 0 0 0 1px var(--diff-4) inset; }

.opt-title { font-weight: 700; font-size: 1.05rem; }
.opt-desc { font-size: 0.82rem; color: var(--text-dim); }

.toggle-row { display: flex; flex-wrap: wrap; gap: 18px; }

.switch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
}

.switch input { accent-color: var(--accent); width: 16px; height: 16px; cursor: pointer; }
.switch:hover { color: var(--text); }

.primary-btn {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 14px;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #06231f;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, opacity 0.15s;
}

.primary-btn:hover:not(:disabled) { background: var(--accent-dark); }
.primary-btn:disabled { opacity: 0.4; cursor: grab; }

.primary-btn.compact {
  width: auto;
  margin-top: 0;
  padding: 11px 26px;
  font-size: 0.95rem;
}

.back-link { text-align: center; margin-top: 16px; font-size: 0.9rem; }
.back-link a { color: var(--text-dim); text-decoration: none; }
.back-link a:hover { color: var(--accent); }

.how-to {
  border: 1px solid var(--panel-light);
  border-radius: 8px;
  margin: 20px auto 0;
  background: var(--panel);
  max-width: 620px;
  width: 100%;
  text-align: left;
}

.how-to-summary {
  display: block;
  padding: 10px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.how-to-summary::-webkit-details-marker { display: none; }
.how-to-summary::before {
  content: "\25B8";
  display: inline-block;
  margin-right: 8px;
  transition: transform 0.2s;
}
details.how-to[open] > .how-to-summary::before { transform: rotate(90deg); }
.how-to-summary:hover { color: var(--text); }

.how-to-body { padding: 0 16px 12px; }
.how-to-body p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.55;
  margin: 0 0 10px;
}
.how-to-body p:last-child { margin-bottom: 0; }
.how-to-body strong { color: var(--text); }

.text-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.95rem;
  text-decoration: underline;
  font-family: inherit;
}

.text-btn:hover { color: var(--text); }

.ghost-btn {
  background: var(--panel);
  border: 1px solid var(--panel-light);
  border-radius: 8px;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 10px 14px;
  font-family: inherit;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.ghost-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--text); background: var(--panel-light); }
.ghost-btn:disabled { opacity: 0.35; cursor: grab; }

/* ── Game screen ─────────────────────────────────────── */

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 12px;
  flex-wrap: wrap;
}

.hud {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.hud span { white-space: nowrap; }
#score-counter { color: var(--accent); }
#fill-counter { color: var(--highlight); }

.target-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--panel-light);
  border-left: 3px solid var(--highlight);
  border-radius: 8px;
  padding: 8px 14px;
  margin-bottom: 10px;
}

.target-main { display: flex; align-items: baseline; gap: 10px; }

.target-label {
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 700;
}

.target-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--highlight);
}

.tier-chip {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid currentColor;
  align-self: center;
}
.tier-chip.tier-1 { color: var(--diff-1); }
.tier-chip.tier-2 { color: var(--diff-2); }
.tier-chip.tier-3 { color: var(--diff-3); }
.tier-chip.tier-4 { color: var(--diff-4); }

.target-count {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-dim);
}

.target-count b { color: var(--selected); }
.target-count b.over { color: var(--incorrect); }

.map-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--panel-light);
  background: var(--ocean);
  height: calc(100vh - 210px);
  min-height: 340px;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

/* 3x the frame, offset so the middle third is what's visible (see app.js) */
#map-svg {
  position: absolute;
  left: -100%;
  top: -100%;
  width: 300%;
  height: 300%;
  transform-origin: 33.3333% 33.3333%;
  will-change: transform;
  cursor: crosshair;
}

.map-wrap.pan #map-svg { cursor: grab; }
.map-wrap.panning #map-svg { cursor: grabbing; }

.cell {
  fill: var(--land);
  fill-rule: evenodd; /* lakes inside a province are holes */
  stroke: var(--land-stroke);
  stroke-width: calc(0.8px * var(--u, 1));
  stroke-linejoin: round;
}

.map-wrap:not(.revealed):not(.panning) .cell:hover { fill: var(--land-hover); }
.cell.sel { fill: var(--selected); }
.map-wrap:not(.revealed):not(.panning) .cell.sel:hover { fill: #7ee3da; }

.map-wrap.revealed .cell { fill: #2e3b4b; }

/* Fill the Map: provinces claimed in earlier rounds */
.cell.claimed,
.map-wrap:not(.revealed):not(.panning) .cell.claimed:hover { fill: var(--claim); cursor: grab; }
.map-wrap.revealed .cell.claimed { fill: var(--claim); opacity: 0.45; }
.map-wrap.revealed .cell.hit { fill: var(--correct); }
.map-wrap.revealed .cell.wrong { fill: var(--incorrect); }
.map-wrap.revealed .cell.miss { fill: var(--missed); }
.map-wrap.revealed .cell:hover { filter: brightness(1.2); }

#outline-layer path {
  fill: none;
  stroke: #fff;
  stroke-width: calc(2.2px * var(--u, 1));
  stroke-linejoin: round;
  pointer-events: none;
}

.map-controls {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.map-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--panel-light);
  background: rgba(26, 37, 51, 0.92);
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  font-family: inherit;
}

.map-btn:hover { border-color: var(--accent); }
.map-btn.mode { font-size: 1.05rem; margin-top: 6px; border-color: var(--accent); }

.tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(15, 22, 32, 0.95);
  border: 1px solid var(--panel-light);
  border-radius: 6px;
  padding: 4px 9px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  transform: translate(12px, -130%);
}

.feedback {
  position: absolute;
  left: 50%;
  top: 12px;
  transform: translateX(-50%);
  background: rgba(15, 22, 32, 0.95);
  border: 1px solid var(--panel-light);
  border-radius: 10px;
  padding: 10px 18px;
  text-align: center;
  max-width: calc(100% - 28px);
  pointer-events: none;
}

.feedback .fb-score { font-size: 1.5rem; font-weight: 800; color: var(--accent); }
.feedback .fb-line { font-size: 0.88rem; color: var(--text-dim); margin-top: 2px; }
.feedback .fb-line .k-hit { color: var(--correct); font-weight: 700; }
.feedback .fb-line .k-wrong { color: var(--incorrect); font-weight: 700; }
.feedback .fb-line .k-miss { color: var(--missed); font-weight: 700; }

.action-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.action-spacer { flex: 1; }

/* ── Results ─────────────────────────────────────────── */

.final-score {
  text-align: center;
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 20px;
}

.breakdown {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0 auto 24px;
  max-width: 640px;
  max-height: 55vh;
  overflow-y: auto;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--panel-light);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.92rem;
}

.breakdown-row .br-name { font-weight: 700; color: var(--highlight); }
.breakdown-row .br-stat { color: var(--text-dim); margin-left: auto; }
.breakdown-row .br-pts { font-weight: 700; color: var(--accent); min-width: 3.2em; text-align: right; }

.results-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.results-buttons .primary-btn { width: auto; padding: 12px 28px; }

/* ── Loading ─────────────────────────────────────────── */

#loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 22, 32, 0.94);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--text-dim);
  z-index: 100;
}

#loading-overlay.hidden { display: none; }

.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--panel-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 640px) {
  #app { padding: 12px; }
  h1 { font-size: 1.7rem; }
  .options-grid { grid-template-columns: 1fr; }
  .options-grid.four-col { grid-template-columns: repeat(2, 1fr); }
  .map-wrap { height: calc(100vh - 250px); }
  .target-name { font-size: 1.15rem; }
}