/* Telar · tema — un solo color (cobre) + líneas + espacio.
   Claro por defecto (papel de taller); oscuro con [data-tema="oscuro"]. */

:root {
  --papel: #f6f3ee;        /* fondo general */
  --carta: #fffdf9;        /* superficies */
  --tinta: #23272d;
  --mut: #757c86;
  --linea: #ddd6cb;
  --linea-suave: #eae4da;
  --cobre: #b06a3b;
  --cobre-tinta: #fff;
  --cobre-suave: rgba(176, 106, 59, .09);
  --ok: #2f8a52;
  --err: #c04b3d;
  --radio: 18px;
  --mono: Consolas, "Cascadia Mono", monospace;
}

[data-tema="oscuro"] {
  --papel: #14161a;
  --carta: #1c1f25;
  --tinta: #e8eaed;
  --mut: #8b93a0;
  --linea: #2d323b;
  --linea-suave: #23272e;
  --cobre: #cf8a52;
  --cobre-tinta: #1c1208;
  --cobre-suave: rgba(207, 138, 82, .12);
  --ok: #6fd48f;
  --err: #f0897c;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  background: var(--papel);
  color: var(--tinta);
  font: 14.5px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex;
  align-items: stretch;
}

/* ── Sidebar ─────────────────────────────────────── */
.sidebar {
  flex: none;
  width: 216px;
  height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  padding: 26px 18px 18px;
  border-right: 1px solid var(--linea);
}
.logo { text-decoration: none; color: inherit; display: inline-block; margin-bottom: 34px; }
.wordmark {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 30px;
  color: var(--cobre);
  line-height: 1;
}
.trama {
  display: block;
  height: 4px;
  width: 74px;
  margin-top: 6px;
  background: repeating-linear-gradient(-45deg, var(--cobre) 0 5px, transparent 5px 9px);
}
.trama.ancha { width: 100%; }
@keyframes tejer { from { background-position: 0 0; } to { background-position: 36px 0; } }
.trama.animada { animation: tejer 1s linear infinite; }
@media (prefers-reduced-motion: reduce) { .trama.animada { animation: none; opacity: .6; } }

.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  color: var(--mut);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 9px;
  border-left: 2px solid transparent;
}
.nav-item:hover { color: var(--tinta); background: var(--cobre-suave); }
.nav-item.activo { color: var(--tinta); border-left-color: var(--cobre); background: var(--cobre-suave); border-radius: 0 9px 9px 0; }

.sidebar .resorte { flex: 1; }
.tema-toggle {
  background: none;
  border: 1px solid var(--linea);
  border-radius: 10px;
  color: var(--mut);
  padding: 9px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
}
.tema-toggle:hover { color: var(--tinta); border-color: var(--cobre); }

/* ── Contenido ───────────────────────────────────── */
main { flex: 1; min-width: 0; }

.carta {
  background: var(--carta);
  border: 1px solid var(--linea);
  border-radius: var(--radio);
}

h1, h2, h3 { font-weight: 650; }

.mut { color: var(--mut); }
.mono { font-family: var(--mono); }

/* ── Controles ───────────────────────────────────── */
button { font: inherit; }
.btn {
  background: var(--cobre);
  color: var(--cobre-tinta);
  border: 0;
  border-radius: 12px;
  padding: 11px 20px;
  font-weight: 650;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.07); }
.btn:disabled { opacity: .5; cursor: wait; }
.btn.mini { padding: 6px 14px; font-size: 12.5px; border-radius: 9px; }
.btn.borde {
  background: none;
  color: var(--cobre);
  border: 1px solid var(--cobre);
}

.link-min {
  background: none; border: 0; cursor: pointer;
  color: var(--mut); font-size: 11.5px; padding: 2px 4px;
  text-decoration: underline; font: inherit;
}
.link-min:hover { color: var(--cobre); }
.link-min.peligro:hover { color: var(--err); }

input, textarea {
  background: var(--carta);
  border: 1px solid var(--linea);
  border-radius: 10px;
  color: var(--tinta);
  padding: 9px 12px;
  font: inherit;
}
input:focus, textarea:focus { outline: none; border-color: var(--cobre); }
textarea { resize: vertical; }
.campo-mono { font-family: var(--mono); font-size: 12.5px; }

pre.salida {
  background: var(--papel);
  border: 1px solid var(--linea-suave);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 12px;
  padding: 10px 12px;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  max-height: 280px;
  overflow-y: auto;
  margin: 8px 0;
}

/* ── Piezas comunes ──────────────────────────────── */
.chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .4px;
  color: var(--cobre);
  border: 1px solid var(--cobre);
  border-radius: 20px;
  padding: 2px 10px;
  white-space: nowrap;
}
.chip.neutro { color: var(--mut); border-color: var(--linea); }

.aviso {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  max-width: min(680px, 86vw);
  z-index: 50;
  background: var(--carta);
  border: 1px solid var(--cobre);
  border-radius: 12px;
  padding: 11px 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.12);
}
.aviso.error { border-color: var(--err); color: var(--err); }

.cred { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; flex-wrap: wrap; }
.cred code { font-family: var(--mono); font-size: 12px; color: var(--cobre); }
.cred-ok { color: var(--ok); font-weight: 700; }
.cred input { flex: 1; min-width: 0; padding: 6px 10px; font-family: var(--mono); font-size: 12px; }

::selection { background: var(--cobre-suave); }

/* ── Login (velo de sesión) ─────────────────────────── */
#login-velo {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center;
  background: var(--papel);
}
#login-card {
  width: min(340px, 90vw);
  background: var(--carta);
  border: 1px solid var(--linea);
  border-radius: var(--radio);
  padding: 36px 32px;
  display: flex; flex-direction: column; gap: 14px;
}
#login-card h2 { margin: 0; font-size: 1.5rem; letter-spacing: .02em; }
#login-card p { margin: 0; color: var(--mut); font-size: .92rem; }
#login-card label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: .85rem; color: var(--mut);
}
#login-card input {
  font: inherit; color: var(--tinta);
  background: var(--papel);
  border: 1px solid var(--linea);
  border-radius: 10px; padding: 10px 12px;
}
#login-card input:focus { outline: none; border-color: var(--cobre); }
#login-card button {
  font: inherit; cursor: pointer; margin-top: 6px;
  background: var(--cobre); color: var(--cobre-tinta);
  border: none; border-radius: 10px; padding: 11px;
}
#login-card #login-error { color: var(--err); font-size: .85rem; }