*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1923;
  --surface: #1a2535;
  --surface2: #223040;
  --accent: #3ecfcf;
  --accent2: #f97316;
  --text: #e8f0f7;
  --muted: #7a9ab5;
  --border: #2a3f55;
  --gold: #fbbf24;
  --silver: #cbd5e1;
  --bronze: #d97757;
  --low: #7a9ab5;
  --card-radius: 14px;
}

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; }

/* ── Top bar ───────────────────────────────────────────────────── */
header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  text-decoration: none;
}

.brand .globe { font-size: 1.4rem; }

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(0.97); }
.btn.primary {
  background: linear-gradient(120deg, var(--accent), #2ea8a8);
  color: #06262b;
  border: none;
}
.btn.primary:disabled {
  background: var(--surface2);
  color: var(--muted);
  cursor: not-allowed;
}

.stats {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  color: var(--muted);
}
.stats b { color: var(--text); }

/* ── Mode toggle ───────────────────────────────────────────────── */
.mode-toggle {
  display: flex;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.mode-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}
.mode-btn.active {
  background: var(--accent);
  color: #06262b;
}
.mode-btn:not(.active):hover { color: var(--text); }

/* ── Country pool (Free Pick mode) ────────────────────────────── */
.pool-wrap { display: flex; flex-direction: column; gap: 10px; }

.country-pool {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
  max-height: 260px;
  overflow-y: auto;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
}

.pool-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface2);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: border-color 0.12s, transform 0.1s;
}
.pool-item:hover { border-color: var(--accent); }
.pool-item.selected {
  border-color: var(--accent);
  background: rgba(62,207,207,0.15);
  transform: scale(1.03);
}
.pool-item img {
  width: 20px;
  height: 14px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
}
.pool-item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Main layout ───────────────────────────────────────────────── */
main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Current country card ─────────────────────────────────────── */
.current-country {
  align-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  min-width: 260px;
}

.current-country img {
  width: 100px;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.4);
}

.current-country .name {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
}

.deck-count {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ── Rank toast ────────────────────────────────────────────────── */
.rank-toast {
  align-self: center;
  text-align: center;
  min-height: 26px;
  font-size: 0.95rem;
  color: var(--text);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s;
}
.rank-toast.show { opacity: 1; transform: translateY(0); }
.toast-value { color: var(--muted); margin-left: 6px; }
.toast-points {
  margin-left: 10px;
  font-weight: 800;
  color: var(--accent);
}

.rank-gold { color: var(--gold); }
.rank-silver { color: var(--silver); }
.rank-bronze { color: var(--bronze); }
.rank-low { color: var(--low); }

/* ── Category grid ─────────────────────────────────────────────── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
@media (max-width: 900px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .category-grid { grid-template-columns: 1fr; }
}

.category {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s, background 0.15s;
  min-height: 170px;
}
.category:hover:not(.disabled) {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.category:active:not(.disabled) { transform: scale(0.98); }
.category.disabled { cursor: default; opacity: 0.55; }
.category.pickable {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(62,207,207,0.25);
}
.category.filled-free { cursor: pointer; }

.category.flash-gold { border-color: var(--gold); background: rgba(251,191,36,0.12); }
.category.flash-silver { border-color: var(--silver); background: rgba(203,213,225,0.1); }
.category.flash-bronze { border-color: var(--bronze); background: rgba(217,119,87,0.12); }
.category.flash-low { border-color: var(--muted); background: rgba(122,154,181,0.1); }

.category-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.category-head h3 {
  font-size: 0.92rem;
  font-weight: 700;
}

.category-head .count {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
}

.category-unit {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.category-slots {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  max-height: 130px;
}

.slot-entry {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  background: var(--surface2);
  border-radius: 6px;
  padding: 3px 6px;
}

.slot-entry img {
  width: 18px;
  height: 12px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
}

.slot-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.slot-rank {
  font-weight: 800;
  flex-shrink: 0;
}

/* ── Game over ─────────────────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 12, 20, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 20px;
}
.overlay[hidden] { display: none; }

.overlay-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 36px 40px;
  text-align: center;
  max-width: 520px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
}
.overlay-card h2 { font-size: 1.8rem; margin-bottom: 12px; }
.overlay-card p { color: var(--muted); margin-bottom: 20px; line-height: 1.5; }
.overlay-card .big-score {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
}

.overlay-card #showOptimalBtn { margin-bottom: 20px; }

.optimal-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  text-align: left;
}

.optimal-row {
  display: grid;
  grid-template-columns: 22px 1fr auto auto auto;
  align-items: center;
  gap: 8px;
  background: var(--surface2);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 0.82rem;
}

.optimal-row img {
  width: 20px;
  height: 14px;
  object-fit: cover;
  border-radius: 2px;
}

.optimal-country { font-weight: 700; }
.optimal-cat { color: var(--muted); white-space: nowrap; }
.optimal-pts { font-weight: 700; color: var(--accent); white-space: nowrap; }

/* ── Browse mode ───────────────────────────────────────────────── */
.search-bar { margin-bottom: 14px; }
.search-bar input {
  width: 100%;
  max-width: 360px;
  padding: 10px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.95rem;
}
.search-bar input:focus { outline: 1px solid var(--accent); }

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
}

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }

th, td {
  padding: 9px 12px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--accent);
  cursor: pointer;
  user-select: none;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
th:hover { color: var(--text); }

td img {
  width: 20px;
  height: 14px;
  object-fit: cover;
  border-radius: 2px;
  vertical-align: middle;
  margin-right: 6px;
}

tbody tr:hover { background: var(--surface2); }

[hidden] { display: none !important; }