:root {
  --bg: #171d26;
  --bg-panel: #1f2733;
  --bg-panel-2: #262f3d;
  --border: #38445a;
  --text: #e7ebf2;
  --text-dim: #9aa7bc;
  --accent: #4f8ff0;
  --unit-green: #3e7d55;
  --unit-green-border: #6fbf8b;
  --commander: #b5654a;
  --danger: #c0463a;
  --danger-bg: #3a2422;
  --success: #3f8f5c;
  --slot-empty: #232c3a;
  --radius: 10px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { font-weight: 700; letter-spacing: 0.03em; }
.brand small { font-weight: 400; color: var(--text-dim); margin-left: 0.4em; }

.conn-indicator {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--bg-panel-2);
  color: var(--text-dim);
}
.conn-indicator.ok { color: var(--success); }
.conn-indicator.bad { color: var(--danger); }

main#app {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem;
  padding-bottom: 2rem;
}

.footer {
  text-align: center;
  padding: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.loading { text-align: center; color: var(--text-dim); margin-top: 3rem; }

/* Pantallas genericas */
.screen { display: flex; flex-direction: column; gap: 1rem; }
.screen h1 { font-size: 1.3rem; margin: 0 0 0.2rem; }
.screen p.subtitle { color: var(--text-dim); margin: 0 0 0.5rem; }

.button-stack { display: flex; flex-direction: column; gap: 0.75rem; }

button, .btn {
  font: inherit;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
  color: var(--text);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}
button:hover, .btn:hover { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #0a1526; font-weight: 700; }
button.danger { background: var(--danger-bg); border-color: var(--danger); color: #ffd9d4; }

.card-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.commander-choice { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.commander-choice button { padding: 1.2rem 0.5rem; }
.commander-choice .name { font-weight: 700; display: block; }

.invite-code {
  font-size: 2rem;
  letter-spacing: 0.3em;
  text-align: center;
  font-weight: 700;
  padding: 0.75rem;
  background: var(--bg-panel-2);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}

.invite-link-row { display: flex; gap: 0.5rem; }
.invite-link-row input {
  flex: 1;
  padding: 0.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
  color: var(--text);
  font-size: 0.85rem;
}

/* Mulligan */
.mulligan-hand { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
@media (min-width: 420px) { .mulligan-hand { grid-template-columns: repeat(4, 1fr); } }

/* Tablero */
.board-wrap { display: flex; flex-direction: column; gap: 0.5rem; }

.player-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--bg-panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.player-banner.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.player-banner .name { font-weight: 700; }
.player-banner .stats { display: flex; gap: 0.75rem; font-size: 0.8rem; color: var(--text-dim); }
.player-banner .morale { color: var(--text); font-weight: 700; }

.rank-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-align: center;
  margin: 0.15rem 0;
}

.board-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
}

.slot {
  min-height: 72px;
  border-radius: var(--radius);
  background: var(--slot-empty);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
  position: relative;
}
.slot.selectable { border-color: var(--accent); cursor: pointer; }
.slot.selectable::after {
  content: "";
  position: absolute; inset: 3px;
  border: 2px dashed var(--accent);
  border-radius: calc(var(--radius) - 3px);
  pointer-events: none;
}
.slot .front-tag {
  position: absolute;
  top: 2px; left: 4px;
  font-size: 0.55rem;
  color: var(--text-dim);
}

.unit-card {
  width: 100%;
  border-radius: 6px;
  background: var(--unit-green);
  border: 1px solid var(--unit-green-border);
  color: #eafff0;
  padding: 0.3rem 0.4rem;
  font-size: 0.72rem;
  cursor: pointer;
  text-align: left;
  position: relative;
}
.unit-card.selected { outline: 2px solid #fff; }
.unit-card.enemy { background: #6b3a3a; border-color: #b06a6a; }
.unit-card.activated { opacity: 0.55; }
.unit-card.summoning-sick { border-style: dashed; }
.unit-card .row1 { display: flex; justify-content: space-between; font-weight: 700; }
.unit-card .row2 { display: flex; justify-content: space-between; margin-top: 0.15rem; }
.unit-card .dmg { color: #ffd9d4; }

.hand-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 0.5rem;
}
.hand-card {
  background: var(--unit-green);
  border: 1px solid var(--unit-green-border);
  border-radius: 8px;
  padding: 0.5rem;
  font-size: 0.75rem;
  cursor: pointer;
  color: #eafff0;
}
.hand-card.selected { outline: 2px solid #fff; }
.hand-card.unaffordable { opacity: 0.4; cursor: not-allowed; }
.hand-card .name { font-weight: 700; display: block; }
.hand-card .stats { display: flex; justify-content: space-between; margin-top: 0.3rem; }

.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.5rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: sticky;
  bottom: 0;
}
.action-bar button { flex: 1; min-width: 100px; }

.log-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.8rem;
  max-height: 160px;
  overflow-y: auto;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.log-panel .entry { padding: 0.15rem 0; border-bottom: 1px dotted var(--border); }
.log-panel .entry:last-child { border-bottom: none; }

.pending-banner {
  background: #4a3a1e;
  border: 1px solid #b8862f;
  color: #ffe9b8;
  padding: 0.6rem;
  border-radius: var(--radius);
  text-align: center;
}

.toast-container {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  z-index: 50;
  width: min(92vw, 420px);
}
.toast {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  box-shadow: 0 4px 14px rgba(0,0,0,0.4);
}
.toast.error { border-color: var(--danger); color: #ffd9d4; }

.end-turn-row { display: flex; justify-content: flex-end; }

.result-banner {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--bg-panel);
  border: 1px solid var(--border);
}
.result-banner.win { color: var(--success); }
.result-banner.lose { color: var(--danger); }