:root {
  --ink: #1c1c1a;
  --muted: #6b6b63;
  --line: #e4e1d8;
  --bg: #f6f5f1;
  --surface: #ffffff;
  --accent: #1f6f4a;
  --danger: #a8462b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.btn, .btn-primary, .btn-ghost {
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: #fff; width: 100%; }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); }

/* ---------- Login ---------- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 360px;
}
.login-card h1 { font-size: 1.3rem; margin: 0 0 6px; }
.login-card .hint { color: var(--muted); font-size: 0.88rem; margin: 0 0 20px; }
.login-card label { display: block; font-size: 0.85rem; color: var(--muted); margin: 14px 0 6px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
}
.login-card button { margin-top: 22px; }
.form-status { margin-top: 12px; font-size: 0.85rem; min-height: 1.2em; }
.form-status.error { color: var(--danger); }

/* ---------- Tablero ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topbar h1 { font-size: 1.1rem; margin: 0; }

.board {
  display: flex;
  gap: 16px;
  padding: 20px;
  overflow-x: auto;
  align-items: flex-start;
}
.loading { padding: 40px; color: var(--muted); }

.column {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  min-width: 280px;
  max-width: 280px;
  flex: none;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 110px);
}
.column h2 {
  font-size: 0.95rem;
  margin: 0;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.column h2 .count {
  background: var(--bg);
  border-radius: 100px;
  padding: 2px 9px;
  font-size: 0.78rem;
  color: var(--muted);
}
.column.drop-hover { border-color: var(--accent); background: #f1f8f4; }
.column-list {
  min-height: 120px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}

.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: grab;
  font-size: 0.85rem;
}
.card.dragging { opacity: 0.4; }
.card-origen { font-size: 0.72rem; color: var(--muted); margin-bottom: 4px; }
.card-nombre { font-weight: 600; margin-bottom: 3px; }
.card-mensaje { color: var(--muted); margin-bottom: 6px; }
.card-fecha { font-size: 0.72rem; color: var(--muted); }

/* ---------- Detalle de ficha ---------- */
.overlay {
  position: fixed; inset: 0;
  background: rgba(20,18,15,0.4);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.overlay[hidden] { display: none; }
.ficha-detail {
  background: var(--surface);
  border-radius: 14px;
  padding: 28px;
  width: 100%;
  max-width: 480px;
  max-height: 82vh;
  overflow-y: auto;
  position: relative;
}
.ficha-close {
  position: absolute; top: 14px; right: 16px;
  border: none; background: none; font-size: 1.4rem; cursor: pointer; color: var(--muted);
}
.ficha-contacto { color: var(--muted); margin: 0 0 4px; }
.ficha-meta { font-size: 0.85rem; color: var(--muted); margin: 0 0 18px; }
.historial { display: flex; flex-direction: column; gap: 12px; }
.hist-item { border-left: 3px solid var(--line); padding-left: 10px; }
.hist-item.hist-respuesta_saliente { border-left-color: var(--accent); }
.hist-meta { font-size: 0.75rem; color: var(--muted); margin-bottom: 2px; }
.hist-texto { font-size: 0.9rem; }