/* Estética de miguelquiroga.es: fondo blanco tipo Notion, tinta cálida,
   acento violeta, títulos en serif y UI en sans. */

:root {
  --bg: #ffffff;
  --ink: #37352f;
  --ink-light: #6b6a66;
  --border: #e9e8e4;
  --card-bg: #fbfbfa;

  --accent: #9a6bb4;
  --accent-dark: #7d5695;
  --accent-soft: #f3ecf8;
  --accent-soft2: #e9ddf0;

  --teal: #2f7d6b;
  --teal-soft: #eaf3f1;
  --amber: #a8752f;
  --amber-soft: #f8f0e3;
  --rose: #a8496b;
  --rose-soft: #f8e9ef;

  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", ui-serif, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --max-w: 1280px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

:focus-visible { outline: 3px solid var(--accent-dark); outline-offset: 2px; }

/* ---------- cabecera + migas de pan ---------- */

.topbar {
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  flex-shrink: 0;
}
.brand .dot { color: var(--accent); }
.breadcrumb {
  font-size: 13px;
  color: var(--ink-light);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--ink-light); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-dark); text-decoration: underline; }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--ink); font-weight: 600; }

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 32px 24px 64px; }

.tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft);
  border-radius: 20px; padding: 3px 10px; margin-bottom: 10px;
}
h1 { font-family: var(--font-serif); font-size: 30px; font-weight: 700; margin: 0 0 4px; }
.subtitle { font-size: 14.5px; color: var(--ink-light); margin: 0 0 24px; max-width: 720px; }
.subtitle a { color: var(--accent-dark); }

/* ---------- maquetación ---------- */

.layout { display: grid; grid-template-columns: 420px minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 960px) { .layout { grid-template-columns: 1fr; } }
.col-viewport { position: sticky; top: 16px; }
@media (max-width: 960px) { .col-viewport { position: static; order: -1; } }

/* ---------- tarjetas ---------- */

.card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; margin-bottom: 16px;
}
.card-label {
  font-size: 11px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--ink-light); margin: 0 0 12px;
}
.note { font-size: 12px; color: var(--ink-light); margin: 10px 0 0; line-height: 1.5; }

/* ---------- selector de modo ---------- */

.pills { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.pill {
  font: inherit; font-size: 13px; padding: 6px 16px; border-radius: 20px;
  border: 1.5px solid var(--border); background: transparent; color: var(--ink);
  cursor: pointer; transition: all .15s;
}
.pill:hover:not(.active) { background: var(--card-bg); }
.pill.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------- formularios ---------- */

.row { display: flex; align-items: center; gap: 10px; margin: 8px 0; }
.row label { flex: 1 1 auto; font-size: 13px; color: var(--ink); }
.row input[type="number"], .row select { flex: 0 0 auto; }
input[type="number"], select, textarea {
  font: inherit; font-size: 14px; color: var(--ink); background: #fff;
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px;
}
input[type="number"] { width: 84px; }
select { max-width: 100%; }
textarea { width: 100%; resize: vertical; line-height: 1.5; }
textarea#texto, textarea#lote { min-height: 110px; }
textarea#lote { min-height: 190px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }
.check { display: flex; align-items: center; gap: 8px; margin: 10px 0 4px; font-size: 13px; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }

#braille-preview {
  margin-top: 10px; padding: 10px 12px; min-height: 44px;
  background: var(--accent-soft); border-radius: 8px;
  font-size: 24px; line-height: 1.5; letter-spacing: 3px; color: var(--accent-dark);
  white-space: pre-wrap; word-break: break-all;
}
.warn { font-size: 12px; color: var(--rose); margin-top: 8px; }

details.howto {
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 14px; margin-bottom: 14px; font-size: 13px;
}
details.howto summary { cursor: pointer; font-weight: 600; }
details.howto ol { margin: 8px 0 0; padding-left: 20px; color: var(--ink-light); }
.count { font-size: 12px; color: var(--ink-light); margin-top: 6px; }
.count.on { color: var(--accent-dark); font-weight: 600; }

.link {
  font: inherit; background: none; border: none; padding: 0; margin-top: 10px;
  color: var(--accent-dark); cursor: pointer; font-size: 12.5px; text-decoration: underline;
}

/* ---------- botones ---------- */

.btn {
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border-radius: 8px; border: 1px solid var(--border);
  background: transparent; color: var(--ink); transition: background .15s;
}
.btn:hover:not(:disabled) { background: var(--card-bg); }
.btn:active:not(:disabled) { transform: scale(.98); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--accent-dark); }
.btn.danger { background: #fff; border-color: var(--rose); color: var(--rose); }
.btn.danger:hover:not(:disabled) { background: var(--rose-soft); }
.btn.block { width: 100%; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.actions .btn { flex: 1 1 auto; }

/* ---------- avisos, progreso y resultados ---------- */

.notice {
  display: flex; gap: 8px; align-items: flex-start;
  font-size: 13px; border-radius: 8px; padding: 10px 12px; margin: 10px 0;
  border: 1px solid var(--border); background: #fff;
}
.notice.warning { background: var(--amber-soft); border-color: #ecd9b5; color: #7a5116; }
.notice.success { background: var(--teal-soft); border-color: #cfe5df; color: #1f5b4d; }
.notice.danger { background: var(--rose-soft); border-color: #eccad7; color: #7e2f4b; }
.notice ul { margin: 6px 0 0; padding-left: 18px; }

.progress { height: 8px; background: var(--accent-soft2); border-radius: 99px; overflow: hidden; margin: 10px 0 6px; }
.progress > div { height: 100%; width: 0; background: var(--accent); border-radius: 99px; transition: width .15s; }
.progress-head { display: flex; justify-content: space-between; font-size: 13px; font-weight: 600; }
.progress-sub { font-size: 12px; color: var(--ink-light); margin: 0; }
.progress-sub code { background: var(--accent-soft); padding: 1px 6px; border-radius: 4px; color: var(--accent-dark); }

#status { font-size: 12.5px; color: var(--ink-light); margin-top: 10px; min-height: 36px; white-space: pre-line; }
#status.error { color: var(--rose); }

[hidden] { display: none !important; }

/* ---------- visor 3D ---------- */

.viewport-card {
  position: relative; border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
  background: radial-gradient(120% 90% at 50% 30%, #fbfaf9 0%, #f3f0f5 60%, #ebe5f0 100%);
  height: 560px;
}
@media (max-width: 960px) { .viewport-card { height: 360px; } }
#canvas-holder { width: 100%; height: 100%; }
#canvas-holder canvas { display: block; width: 100%; height: 100%; }
#stats, #hint {
  position: absolute; font-size: 12px; color: var(--ink-light);
  background: rgba(255,255,255,.85); border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 8px; pointer-events: none;
}
#stats { right: 12px; top: 12px; text-align: right; }
#hint { left: 12px; bottom: 12px; }
.preview-row { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; }
.preview-row input { width: 84px; }
.preview-row .text { color: var(--ink-light); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.foot {
  text-align: center; color: var(--ink-light); font-size: 13px;
  padding: 28px; border-top: 1px solid var(--border);
}
.foot a { color: var(--accent-dark); }

/* ---------- panel desplegable de ajustes ---------- */

details.panel { padding: 0; overflow: hidden; }
details.panel > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 14px 20px; user-select: none;
}
details.panel > summary::-webkit-details-marker { display: none; }
details.panel > summary::before {
  content: ""; width: 8px; height: 8px; flex: 0 0 auto;
  border-right: 2px solid var(--ink-light); border-bottom: 2px solid var(--ink-light);
  transform: rotate(-45deg); transition: transform .15s;
}
details.panel[open] > summary::before { transform: rotate(45deg); }
details.panel > summary:hover { background: var(--accent-soft); }
details.panel > summary .card-label { margin: 0; }
.panel-hint { font-size: 12px; color: var(--ink-light); margin-left: auto; }
details.panel[open] > summary { border-bottom: 1px solid var(--border); }
.panel-body { padding: 8px 20px 18px; }
.subhead {
  font-size: 13px; font-weight: 700; color: var(--accent-dark);
  margin: 14px 0 4px; padding-bottom: 4px; border-bottom: 1px solid var(--accent-soft2);
}

.intro-row { margin-bottom: 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.intro-row .subtitle { margin: 0; }
.logo-web { flex: none; display: block; width: 52px; height: 52px; opacity: .85; transition: opacity .15s ease, transform .15s ease; }
.logo-web:hover, .logo-web:focus-visible { opacity: 1; transform: scale(1.06); }
.logo-web:focus-visible { outline: 3px solid var(--accent-dark); outline-offset: 3px; border-radius: 50%; }
.logo-web img { width: 100%; height: 100%; display: block; }
@media (max-width: 560px) { .logo-web { width: 40px; height: 40px; } }