/* ====== Pruebas de Lógica · Estilos ====== */
:root {
  --bg1: #1e1b4b;
  --bg2: #312e81;
  --bg3: #4c1d95;
  --accent: #22d3ee;
  --accent2: #a78bfa;
  --good: #34d399;
  --bad: #f87171;
  --warn: #fbbf24;
  --card: rgba(255, 255, 255, 0.07);
  --card-border: rgba(255, 255, 255, 0.15);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg1), var(--bg2) 45%, var(--bg3));
  background-attachment: fixed;
  overflow-x: hidden;
}

.app {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 18px 80px;
}

/* ---------- Header ---------- */
header.top {
  text-align: center;
  padding: 14px 0 6px;
}
header.top h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
header.top p { color: var(--muted); margin-top: 6px; font-size: 0.95rem; }

/* ---------- Screens ---------- */
.screen { display: none; animation: fade 0.4s ease; }
.screen.active { display: block; }
@keyframes fade {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Menu ---------- */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 26px;
}
.menu-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 22px;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s;
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}
.menu-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.menu-card .emoji { font-size: 2.6rem; display: block; margin-bottom: 10px; }
.menu-card h3 { font-size: 1.2rem; margin-bottom: 6px; }
.menu-card p { color: var(--muted); font-size: 0.9rem; line-height: 1.4; }
.menu-card .num {
  position: absolute; top: 12px; right: 16px;
  font-size: 0.8rem; color: var(--accent2); font-weight: 700;
  border: 1px solid var(--card-border); border-radius: 999px;
  padding: 2px 10px;
}

/* ---------- Game shell ---------- */
.game-head {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 14px; flex-wrap: wrap;
}
.game-head h2 { font-size: 1.5rem; }
.game-head .emoji { font-size: 1.8rem; }

.instructions {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 18px;
  font-size: 0.95rem;
  line-height: 1.5;
}
.instructions ul { margin: 8px 0 0 18px; }
.instructions li { margin-bottom: 4px; }

.stage {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 20px;
  min-height: 320px;
  box-shadow: var(--shadow);
}

.status-bar {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px; margin-bottom: 14px;
}
.status-msg {
  font-weight: 600; font-size: 1rem; min-height: 24px;
  transition: color 0.2s;
}
.status-msg.good { color: var(--good); }
.status-msg.bad { color: var(--bad); }
.status-msg.warn { color: var(--warn); }

/* ---------- Buttons ---------- */
.btn {
  font-family: inherit; font-size: 0.95rem; font-weight: 600;
  border: none; border-radius: 10px; padding: 10px 18px;
  cursor: pointer; color: #0f172a;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: transform 0.12s, opacity 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(34, 211, 238, 0.3); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn.ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--card-border);
}
.btn.ghost:hover { border-color: var(--accent); box-shadow: none; }
.btn.small { padding: 7px 14px; font-size: 0.85rem; }

/* ---------- Nav (Anterior / Siguiente / Menú) ---------- */
.nav-bar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-top: 22px;
}
.nav-bar .spacer { flex: 1; }

/* ---------- Banks / river layout (games 1,3,4) ---------- */
.river-scene {
  display: grid;
  grid-template-columns: 1fr 90px 1fr;
  gap: 8px; align-items: stretch;
  margin-bottom: 16px;
}
.bank {
  background: linear-gradient(180deg, rgba(52,211,153,0.12), rgba(52,211,153,0.04));
  border: 1px dashed rgba(52,211,153,0.4);
  border-radius: 14px; padding: 12px; min-height: 200px;
  display: flex; flex-direction: column; gap: 8px;
}
.bank h4 { font-size: 0.8rem; color: var(--muted); text-align: center; text-transform: uppercase; letter-spacing: 1px; }
.bank .chars { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; align-content: flex-start; flex: 1; }
.water {
  background: linear-gradient(180deg, #0ea5e9, #0369a1);
  border-radius: 14px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; position: relative;
  overflow: hidden;
}
.water::before {
  content: "〜〜〜"; position: absolute; top: 8px; color: rgba(255,255,255,0.4);
  font-size: 0.7rem; letter-spacing: -2px;
}
.boat-zone {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.boat {
  background: #92400e; border-radius: 0 0 16px 16px;
  padding: 6px 4px 10px; min-width: 64px; min-height: 54px;
  display: flex; flex-wrap: wrap; gap: 4px; justify-content: center;
  border: 2px solid #b45309; transition: transform 0.5s ease;
}
.boat-label { font-size: 0.65rem; color: rgba(255,255,255,0.8); }

/* token (a character/item) */
.token {
  font-size: 1.9rem; line-height: 1; cursor: pointer;
  background: rgba(255,255,255,0.1); border: 2px solid transparent;
  border-radius: 12px; padding: 6px; transition: all 0.15s;
  display: inline-flex; flex-direction: column; align-items: center;
  user-select: none; position: relative;
}
.token:hover { background: rgba(255,255,255,0.22); transform: scale(1.08); }
.token.selected { border-color: var(--accent); background: rgba(34,211,238,0.2); }
.token .cap { font-size: 0.6rem; color: var(--muted); margin-top: 2px; }
.token.in-boat { font-size: 1.5rem; padding: 2px; }
.token.disabled { opacity: 0.45; cursor: not-allowed; }
.token.disabled:hover { transform: none; background: rgba(255,255,255,0.1); }

/* ---------- Frogs game ---------- */
.frog-row {
  display: flex; justify-content: center; align-items: flex-end; gap: 6px;
  flex-wrap: wrap; margin: 30px 0;
}
.pad {
  width: 60px; height: 60px; border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, #475569, #1e293b);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; cursor: pointer; transition: transform 0.15s;
  border: 2px solid rgba(255,255,255,0.08); position: relative;
}
.pad.empty { background: radial-gradient(circle at 40% 35%, #334155, #0f172a); cursor: default; }
.pad.movable:hover { transform: translateY(-8px) scale(1.06); box-shadow: 0 8px 20px rgba(34,211,238,0.4); }
.pad.movable { box-shadow: 0 0 0 2px var(--accent); cursor: pointer; }

/* ---------- Bridge game ---------- */
.bridge-scene { margin: 10px 0; }
.bridge-people { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; min-height: 90px; align-content: flex-start; }
.person {
  cursor: pointer; background: rgba(255,255,255,0.08);
  border: 2px solid transparent; border-radius: 14px;
  padding: 8px 12px; text-align: center; transition: all 0.15s; min-width: 70px;
}
.person:hover { background: rgba(255,255,255,0.2); transform: translateY(-3px); }
.person.selected { border-color: var(--accent); background: rgba(34,211,238,0.2); }
.person .face { font-size: 1.8rem; }
.person .time { font-size: 0.78rem; color: var(--warn); font-weight: 700; }
.person.disabled { opacity: 0.4; pointer-events: none; }

.timer-display {
  font-size: 1.6rem; font-weight: 800; color: var(--warn);
  font-variant-numeric: tabular-nums;
}
.timer-display.over { color: var(--bad); }

.side-cols {
  display: grid; grid-template-columns: 1fr 70px 1fr; gap: 10px; align-items: stretch;
}
.side-col {
  background: rgba(255,255,255,0.04); border: 1px solid var(--card-border);
  border-radius: 14px; padding: 12px;
}
.side-col h4 { text-align: center; font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.lantern-col { display: flex; align-items: center; justify-content: center; font-size: 1.6rem; }

/* ---------- Win overlay ---------- */
.overlay {
  position: fixed; inset: 0; background: rgba(2,6,23,0.8);
  display: none; align-items: center; justify-content: center; z-index: 50;
  backdrop-filter: blur(4px);
}
.overlay.show { display: flex; animation: fade 0.3s; }
.overlay-card {
  background: linear-gradient(145deg, #1e293b, #0f172a);
  border: 1px solid var(--accent); border-radius: 22px;
  padding: 36px 40px; text-align: center; max-width: 420px; box-shadow: var(--shadow);
}
.overlay-card .big { font-size: 3.5rem; margin-bottom: 8px; }
.overlay-card h3 { font-size: 1.8rem; margin-bottom: 10px; color: var(--good); }
.overlay-card p { color: var(--muted); margin-bottom: 20px; }

.move-count { color: var(--muted); font-size: 0.9rem; }

.footer-note { text-align: center; color: var(--muted); font-size: 0.8rem; margin-top: 30px; }

@media (max-width: 600px) {
  .river-scene { grid-template-columns: 1fr; }
  .water { min-height: 80px; flex-direction: row; }
  .side-cols { grid-template-columns: 1fr; }
  .pad { width: 48px; height: 48px; font-size: 1.5rem; }
}