/* notas0 — el archivo. Estética de papel/tinta con eje temporal por años. */

:root {
  --papel: #f4efe6;
  --papel-2: #efe8dc;
  --tinta: #26221c;
  --tinta-suave: #6d655a;
  --tenue: #a99f8f;
  --linea: #dcd3c4;
  --acento: #b0451f;
  --acento-2: #1f5c6b;
  --tarjeta: #fbf8f2;
  --sombra: 0 1px 2px rgba(60, 50, 30, 0.06), 0 8px 24px rgba(60, 50, 30, 0.05);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --papel: #1a1712;
    --papel-2: #211d17;
    --tinta: #ece5d8;
    --tinta-suave: #a89e8d;
    --tenue: #6d6455;
    --linea: #322c23;
    --acento: #e0794f;
    --acento-2: #6bb4c4;
    --tarjeta: #221e18;
    --sombra: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  }
}
:root[data-theme="dark"] {
  --papel: #1a1712; --papel-2: #211d17; --tinta: #ece5d8; --tinta-suave: #a89e8d;
  --tenue: #6d6455; --linea: #322c23; --acento: #e0794f; --acento-2: #6bb4c4;
  --tarjeta: #221e18; --sombra: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
}
:root[data-theme="light"] {
  --papel: #f4efe6; --papel-2: #efe8dc; --tinta: #26221c; --tinta-suave: #6d655a;
  --tenue: #a99f8f; --linea: #dcd3c4; --acento: #b0451f; --acento-2: #1f5c6b;
  --tarjeta: #fbf8f2; --sombra: 0 1px 2px rgba(60,50,30,.06), 0 8px 24px rgba(60,50,30,.05);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

/* ── cabecera ── */
#cabecera {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}
.cab-titulo h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
}
.cab-titulo .cero {
  color: var(--acento);
  font-style: italic;
}
.cab-sub {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--tinta-suave);
}
.cab-busca { flex: 1 1 200px; max-width: 320px; }
#busca {
  width: 100%;
  padding: 9px 14px;
  border: 1px solid var(--linea);
  border-radius: 999px;
  background: var(--tarjeta);
  color: var(--tinta);
  font-family: var(--mono);
  font-size: 0.85rem;
  outline: none;
}
#busca:focus { border-color: var(--acento); }

/* ── candado ── */
.cab-lock { flex: 1 1 100%; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
#lock-btn {
  border: 1px solid var(--linea);
  background: var(--tarjeta);
  color: var(--tinta-suave);
  font-family: var(--mono);
  font-size: 0.74rem;
  padding: 5px 11px;
  border-radius: 999px;
  cursor: pointer;
}
#lock-btn:hover { border-color: var(--acento-2); color: var(--tinta); }
#lock-form { display: flex; align-items: center; gap: 8px; }
#lock-pass {
  padding: 6px 12px;
  border: 1px solid var(--linea);
  border-radius: 999px;
  background: var(--papel-2);
  color: var(--tinta);
  font-family: var(--mono);
  font-size: 0.8rem;
  outline: none;
}
#lock-pass:focus { border-color: var(--acento-2); }
#lock-form button {
  border: none;
  background: var(--acento-2);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.76rem;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}
#lock-msg { font-family: var(--mono); font-size: 0.72rem; color: var(--acento); }
.nota-lock { opacity: 0.62; }
.nota-lock .nota-titulo { color: var(--tinta-suave); font-style: italic; font-weight: 500; }
.nota-lock:hover { opacity: 0.85; }

/* ── raíl de años ── */
#rail {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--papel) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--linea);
  display: flex;
  gap: 4px;
  padding: 10px 24px;
  overflow-x: auto;
  scrollbar-width: none;
  max-width: 900px;
  margin: 8px auto 0;
}
#rail::-webkit-scrollbar { display: none; }
.anio-chip {
  flex: 0 0 auto;
  border: none;
  background: none;
  color: var(--tinta-suave);
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 6px 11px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 5px;
  transition: background 0.15s, color 0.15s;
}
.anio-chip:hover { background: var(--papel-2); color: var(--tinta); }
.anio-chip.activo { background: var(--acento); color: #fff; }
.anio-chip .n { font-size: 0.64rem; opacity: 0.7; }
.anio-chip.activo .n { opacity: 0.85; }
.rail-sep {
  flex: 0 0 auto;
  align-self: center;
  color: var(--tenue);
  font-family: var(--mono);
  font-size: 0.66rem;
  padding: 0 2px;
  letter-spacing: 0.05em;
}

/* ── lista de notas ── */
#lista {
  max-width: 900px;
  margin: 0 auto;
  padding: 8px 24px 40px;
}
.grupo-anio {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--tenue);
  margin: 30px 0 10px;
  font-weight: 600;
}
.nota {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  border-top: 1px solid var(--linea);
  background: none;
  color: inherit;
  padding: 16px 4px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.12s;
}
.nota:hover { background: var(--papel-2); }
.nota:first-child { border-top: none; }
.nota-cab {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 3px;
}
.nota-fecha {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--acento-2);
  white-space: nowrap;
}
.nota-carpeta {
  font-family: var(--mono);
  font-size: 0.63rem;
  color: var(--tenue);
  border: 1px solid var(--linea);
  border-radius: 5px;
  padding: 0 5px;
}
.nota-img { font-size: 0.7rem; }
.nota-titulo {
  font-family: var(--serif);
  font-size: 1.12rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
}
.nota-preview {
  color: var(--tinta-suave);
  font-size: 0.9rem;
  margin: 2px 0 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.vacio {
  text-align: center;
  color: var(--tenue);
  font-family: var(--mono);
  padding: 60px 0;
}

/* ── lector ── */
#lector[hidden] { display: none; }
#lector {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5vh 16px;
  overflow-y: auto;
}
#lector-bg {
  position: fixed;
  inset: 0;
  background: rgba(20, 15, 8, 0.42);
  backdrop-filter: blur(3px);
}
#lector-panel {
  position: relative;
  background: var(--tarjeta);
  border-radius: 16px;
  box-shadow: var(--sombra);
  max-width: 640px;
  width: 100%;
  padding: 34px 34px 44px;
  animation: subir 0.28s cubic-bezier(.2, .9, .3, 1);
}
@keyframes subir { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
#lector-cerrar {
  position: absolute;
  top: 14px;
  right: 16px;
  border: none;
  background: none;
  color: var(--tinta-suave);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 6px;
  line-height: 1;
}
#lector-cerrar:hover { color: var(--acento); }
#lector-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--acento-2);
  margin-bottom: 10px;
}
#lector-titulo {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 0 16px;
  line-height: 1.25;
}
#lector-cuerpo {
  font-size: 1.02rem;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}
#lector-cuerpo .aviso-img {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--tenue);
  border: 1px dashed var(--linea);
  border-radius: 8px;
  padding: 8px 12px;
  margin-top: 16px;
  display: inline-block;
}

#fin { height: 1px; }

@media (max-width: 560px) {
  #cabecera { padding: 28px 18px 12px; }
  #rail, #lista { padding-left: 18px; padding-right: 18px; }
  #lector-panel { padding: 28px 22px 36px; }
}