:root {
  /* Paleta Yachay & Ñaño: azul primario #006699 (oscuro #005582 para
     bordes/estados), celeste de fondo #C1EAFF, dorado #F2C649 y morado
     secundario #7144A2 — tomados de KeLePlay81 (IngresoDocente, Navbar,
     LoginAlumno, PanelDocente). */
  --paper: #C1EAFF;
  --card: #FFFFFF;
  --ink: #202634;
  --ink-soft: #5B6272;
  --line: #DBDEE2;
  --accent: #006699;
  --accent-dark: #005582;
  --accent-soft: #C1EAFF;
  --good: #2F8F5B;
  --good-soft: #E4F3EA;

  --p1: #E15A4A;
  --p2: #EFA23D;
  --p3: #F2C649;
  --p4: #78B57B;
  --p5: #3E9DA1;
  --p6: #006699;
  --p7: #7144A2;
}

* { box-sizing: border-box; }

html { overscroll-behavior-y: contain; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Work Sans', system-ui, sans-serif;
  padding: 20px;
  min-height: 100vh;
  overscroll-behavior: contain;
  -webkit-user-select: none;
  user-select: none;
}

input, textarea { -webkit-user-select: text; user-select: text; }

.wrap { max-width: 620px; margin-inline: auto; }

h1, h2 {
  font-family: 'Baloo 2', sans-serif;
  font-weight: 800;
  color: var(--accent);
  margin: 0 0 6px;
}
h1 { font-size: clamp(1.7rem, 6vw, 2.4rem); }
h2 { font-size: 1.2rem; }

.eyebrow {
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}

p.lede { color: var(--ink-soft); line-height: 1.5; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  margin-top: 16px;
}

label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 6px; color: var(--ink-soft); }
input[type=text], input[type=password] {
  width: 100%;
  font-size: 16px; /* evita el zoom automatico de iOS al enfocar el campo */
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  margin-bottom: 14px;
  font-family: inherit;
}

button {
  font-family: 'Work Sans', sans-serif;
  font-weight: 600;
  font-size: .95rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  padding: 11px 20px;
  min-height: 46px;
  cursor: pointer;
  touch-action: manipulation;
}
button.primary { background: var(--accent); border-color: var(--accent-dark); color: #fff; }

select {
  font-family: inherit;
  font-size: .95rem;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}
#inSeccion {
  display: block;
  width: 100%;
  font-size: 16px; /* evita el zoom automatico de iOS al enfocar el campo */
  padding: 12px 14px;
  margin-bottom: 14px;
}
button.danger { background: #fff; border-color: var(--p1); color: var(--p1); }
button:disabled { opacity: .45; cursor: default; }
button:active { transform: translateY(1px); }

[hidden] { display: none !important; }

.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .8rem; font-weight: 600;
  padding: 4px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
}
.status-pill.running { background: var(--good-soft); color: var(--good); }
.status-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.clock {
  font-family: 'Baloo 2', sans-serif;
  font-weight: 800;
  font-size: clamp(2.6rem, 12vw, 3.6rem);
  font-variant-numeric: tabular-nums;
  text-align: center;
  margin: 4px 0 10px;
}

.board {
  width: 100%;
  max-width: 560px;
  touch-action: none;
  border-radius: 14px;
  background: var(--accent-soft);
  display: block;
  margin-inline: auto;
}
.piece-g { cursor: grab; transition: transform .12s ease; }
.piece-g.dragging { cursor: grabbing; transition: none; }
.piece-g.ejecting { transition: transform .6s cubic-bezier(.25, .8, .3, 1.2); }
.piece-g .piece { stroke: var(--ink); stroke-width: 3; stroke-linejoin: round; }
.piece-g.selected .piece { stroke: var(--accent); stroke-width: 6; }
.piece-g.solved { cursor: default; }
.piece-g.solved .piece {
  stroke: var(--good);
  stroke-width: 4;
  filter: drop-shadow(0 0 7px rgba(47, 143, 91, .65));
}
.target-outline {
  fill: var(--line);
  stroke: var(--ink-soft);
  stroke-width: 2;
  opacity: .6;
}

.preview-caption {
  font-family: 'Work Sans', sans-serif;
  font-weight: 600;
  font-size: 18px;
  fill: var(--ink-soft);
  text-anchor: middle;
}

.rotate-controls { display: flex; gap: 10px; justify-content: center; margin-top: 12px; }
.rotate-controls button { font-size: 1.15rem; padding: 10px 22px; min-height: 50px; }

table.leaderboard { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.leaderboard th, table.leaderboard td {
  text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line);
}
table.leaderboard th { color: var(--ink-soft); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
table.leaderboard tr:first-child td { font-weight: 700; color: var(--good); }
table.leaderboard td.time { font-variant-numeric: tabular-nums; }

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

footer { text-align: center; font-size: .78rem; color: var(--ink-soft); margin-top: 24px; }

@media (max-width: 420px) {
  body { padding: 14px; }
  .card { padding: 18px; }
}