:root {
  --bg: #0f1620;
  --panel: #1a2533;
  --panel-light: #233044;
  --accent: #4fd1c5;
  --accent-dark: #2ca39a;
  --text: #eef3f8;
  --text-dim: #9fb0c2;
  --correct: #4ade80;
  --incorrect: #f87171;
  --missed: #fbbf24;
  --land: #33455a;
  --land-hover: #46607d;
  --land-stroke: #16202c;
  --land-ignored: #222d3b;
  --selected: #f6ad55;
  --ocean: #101820;

  --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: 1080px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
}

.screen { display: none; }
.screen.active { display: block; }

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: 28px;
}

/* ───────────────────────── Start screen ───────────────────────── */

.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;
}

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

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

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

.option-btn {
  background: var(--panel);
  border: 2px solid transparent;
  border-radius: 10px;
  color: var(--text);
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  font-size: 0.95rem;
  font-family: inherit;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}

.option-btn:hover { background: var(--panel-light); }
.option-btn:active { transform: scale(0.99); }

.option-btn.selected {
  border-color: var(--accent);
  background: var(--panel-light);
}

.option-btn-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  padding: 10px 20px;
  font-weight: 700;
}

/* Each duellist picks their own difficulty in the player-setup modal, so the
   shared selector on the start screen would be meaningless (and its value
   unused) once duels are on. */
body.duels-mode #difficulty-group { display: none; }

.opt-title { font-weight: 600; }
.opt-desc { font-size: 0.82rem; color: var(--text-dim); line-height: 1.35; }

.primary-btn {
  display: block;
  width: 100%;
  max-width: 320px;
  margin: 28px auto 0;
  padding: 14px;
  font-size: 1.05rem;
  font-weight: 600;
  font-family: inherit;
  background: var(--accent);
  color: #0b1218;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

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

.primary-btn.secondary {
  background: var(--panel-light);
  color: var(--text);
}
.primary-btn.secondary:hover { background: var(--panel); }

.text-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
}
.text-btn:hover { color: var(--text); background: var(--panel); }

.rules {
  margin: 30px auto 0;
  max-width: 720px;
  background: var(--panel);
  border-radius: 10px;
  padding: 12px 18px;
}

.rules summary {
  cursor: pointer;
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.rules p {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 12px 0 0;
}

.back-link { text-align: center; margin-top: 26px; }
.back-link a { color: var(--text-dim); text-decoration: none; font-size: 0.9rem; }
.back-link a:hover { color: var(--accent); }

.how-to {
  border: 1px solid var(--panel-light);
  border-radius: 8px;
  margin-top: 20px;
  background: var(--panel);
  max-width: 520px;
  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); }

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

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

.hud { display: flex; gap: 20px; font-weight: 600; letter-spacing: 0.5px; }
.hud-right { display: flex; gap: 8px; align-items: center; }

.hud-toggle {
  background: var(--panel);
  border: 1px solid var(--panel-light);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.hud-toggle:hover:not(:disabled) { color: var(--text); border-color: var(--accent-dark); }
.hud-toggle:disabled { opacity: 0.4; cursor: default; }

.prompt-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--panel);
  border-radius: 12px;
  padding: 14px 18px;
}

.prompt-main h2 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.5px;
}

.empire-when {
  margin: 3px 0 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.prompt-side { display: flex; align-items: center; gap: 12px; }

.target-count {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}

.hint-text {
  margin: 8px 0 0;
  color: var(--missed);
  font-size: 0.9rem;
  text-align: center;
}

.hidden { display: none !important; }

/* ── Map ── */

.map-wrap {
  position: relative;
  margin: 12px 0;
  background: var(--ocean);
  border-radius: 12px;
  overflow: hidden;
}

#map-svg {
  display: block;
  width: 100%;
  height: auto;
  cursor: crosshair;
  touch-action: none;
}

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

.country {
  fill: var(--land);
  stroke: var(--land-stroke);
  stroke-width: 0.35;
  vector-effect: non-scaling-stroke;
  transition: fill 0.12s;
}

/* Scoped to unselected countries: a bare .country.hoverable:hover outranks
   .country.selected, which left a just-clicked country looking unshaded until
   the cursor moved off it. */
.country.hoverable:not(.selected):hover { fill: var(--land-hover); }
.country.ignored { fill: var(--land-ignored); pointer-events: none; }

.country.selected { fill: var(--selected); }
.country.correct  { fill: var(--correct); }
.country.missed   { fill: var(--missed); }
.country.wrong    { fill: var(--incorrect); }

/* Name-the-Empire rounds shade the answer before you see it. */
.country.revealed { fill: var(--accent); }

.map-locked .country { pointer-events: none; }

.hover-label {
  position: absolute;
  top: 10px;
  left: 12px;
  background: rgba(15, 22, 32, 0.85);
  border: 1px solid var(--panel-light);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.85rem;
  pointer-events: none;
}

.feedback-banner {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  padding: 9px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  background: rgba(15, 22, 32, 0.92);
  border: 1px solid var(--panel-light);
  max-width: 92%;
  text-align: center;
}
.feedback-banner.good { color: var(--correct); border-color: var(--correct); }
.feedback-banner.bad  { color: var(--incorrect); border-color: var(--incorrect); }

/* ── Answer areas ── */

.answer-area { margin-top: 8px; }

.shade-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

#country-input, #empire-input {
  flex: 1;
  min-width: 220px;
  background: var(--panel);
  border: 1px solid var(--panel-light);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  padding: 12px 14px;
}

#country-input:focus, #empire-input:focus {
  outline: none;
  border-color: var(--accent);
}

#country-input.shake, #empire-input.shake {
  border-color: var(--incorrect);
  animation: shake 0.35s;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.selected-count {
  color: var(--text-dim);
  font-size: 0.9rem;
  white-space: nowrap;
}

#name-question {
  text-align: center;
  font-size: 1.15rem;
  font-weight: 600;
  margin: 4px 0 14px;
}

.options-grid.answers .option-btn {
  text-align: center;
  align-items: center;
  font-weight: 600;
}

.option-btn.answer-correct {
  border-color: var(--correct);
  background: rgba(74, 222, 128, 0.14);
}
.option-btn.answer-wrong {
  border-color: var(--incorrect);
  background: rgba(248, 113, 113, 0.14);
}

.answer-form { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.answer-form .primary-btn { margin: 0; width: auto; max-width: none; padding: 12px 26px; }

/* ── Review ── */

.review {
  margin-top: 16px;
  background: var(--panel);
  border-radius: 12px;
  padding: 16px 18px;
}

.review-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.review-col h4 {
  margin: 0 0 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.review-cols.single { grid-template-columns: 1fr; }

.rc-correct { color: var(--correct); }
.rc-missed  { color: var(--missed); }
.rc-wrong   { color: var(--incorrect); }

.rc-list {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.review-blurb {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--panel-light);
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.55;
  font-style: italic;
}

.review .primary-btn { margin-top: 16px; }

/* ── Results ── */

.final-score {
  text-align: center;
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--accent);
  margin: 16px 0 6px;
}

.results-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.results-actions .primary-btn { margin-top: 12px; width: auto; min-width: 180px; }

/* ───────────────────────── Duels ───────────────────────── */

.duel-hud {
  display: flex;
  align-items: center;
  gap: 12px;
}

.duel-player-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--panel-light);
  opacity: 0.5;
  transition: opacity 0.2s, background 0.2s;
  min-width: 80px;
}

.duel-player-chip.active {
  background: var(--accent);
  opacity: 1;
  color: #0b1218;
}

.duel-player-name {
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  max-width: 110px;
  text-overflow: ellipsis;
}

.duel-player-score { font-size: 1.4rem; font-weight: 700; line-height: 1.2; }
.duel-vs { font-size: 0.85rem; color: var(--text-dim); font-weight: 600; }

/* ── Modals ── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}

.modal-box {
  background: var(--panel);
  border-radius: 16px;
  padding: 2rem;
  max-width: 420px;
  width: 100%;
  text-align: center;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-box h2 { margin-top: 0; }
.modal-box ul { text-align: left; line-height: 1.9; padding-left: 1.2rem; color: var(--text-dim); }
.modal-box .primary-btn { margin-top: 1.25rem; }

.modal-label {
  margin: 1.25rem 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  text-align: left;
}
.modal-label span { font-weight: 400; }

#player-setup-difficulties .option-btn {
  text-align: center;
  align-items: center;
  padding: 12px;
}

.player-name-input {
  background: var(--panel-light);
  border: 2px solid var(--panel-light);
  border-radius: 8px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  padding: 12px 16px;
  text-align: center;
  outline: none;
  width: 100%;
}

.player-name-input:focus { border-color: var(--accent); }
.player-name-input::placeholder { color: var(--text-dim); }

/* ── Loading ── */

#loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  z-index: 50;
  color: var(--text-dim);
}
#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); } }

/* ───────────────────────── Responsive ───────────────────────── */

@media (max-width: 720px) {
  #app { padding: 14px; }
  h1 { font-size: 1.7rem; }
  .options-grid, .options-grid.three-col { grid-template-columns: 1fr; }
  .review-cols { grid-template-columns: 1fr; }
  .prompt-main h2 { font-size: 1.2rem; }
  .prompt-bar { align-items: flex-start; }
}