/* ---------------------------------------------------------
   lucianofrette.com — v2
   Sistema propio: el acento es tu regla de niveles de respaldo,
   no un color decorativo. Temas en flat-list (stephango.com),
   archivo unificado (soficontreras.com), entrada guiada por
   pilares (fitnessrevolucionario.com).
--------------------------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Literata:opsz,wght@7..72,400;7..72,500;7..72,600&family=Source+Sans+3:wght@400;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  --papel: #f2f1ec;
  --papel-alzado: #e9e6dd;
  --tinta: #232323;
  --tinta-muted: #6e6b63;
  --linea: #dcd8cd;

  /* el acento no es decorativo: es tu escala de niveles de respaldo */
  --nivel1: #1f6f5c;   /* estudiado */
  --nivel1-soft: #d9e7e2;
  --nivel2: #a8752e;   /* así me lo enseñaron */
  --nivel2-soft: #ecdfc7;
  --nivel3: #a64b3c;   /* sin fuente localizable */
  --nivel3-soft: #ecd5cf;

  --accent: var(--nivel1);
  --accent-soft: var(--nivel1-soft);

  --max-w: 700px;
  --max-w-wide: 980px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --papel: #1c1a16;
    --papel-alzado: #252220;
    --tinta: #ece7dd;
    --tinta-muted: #a39c8e;
    --linea: #3a352c;
    --nivel1: #4fa88f; --nivel1-soft: #1f3530;
    --nivel2: #d7a44f; --nivel2-soft: #3a2f1c;
    --nivel3: #cf7561; --nivel3-soft: #3a2621;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font-family: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  font-size: 18px;
}

h1, h2, h3 {
  font-family: "Literata", Georgia, serif;
  font-weight: 500;
  line-height: 1.24;
  color: var(--tinta);
  font-optical-sizing: auto;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

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

/* Header */
header.site { border-bottom: 1px solid var(--linea); padding: 20px 0; }
header.site .wrap-wide { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.logo { font-family: "Literata", serif; font-size: 20px; color: var(--tinta); letter-spacing: 0.01em; }
nav.site-nav { display: flex; gap: 22px; flex-wrap: wrap; }
nav.site-nav a { color: var(--tinta-muted); font-size: 15px; }
nav.site-nav a:hover, nav.site-nav a.active { color: var(--accent); text-decoration: none; }

/* Hero */
.hero { padding: 64px 0 48px; border-bottom: 1px solid var(--linea); }
.hero h1 { font-size: 34px; max-width: 640px; margin: 0 0 16px; }
.hero p.lede { font-size: 19px; color: var(--tinta-muted); max-width: 560px; margin: 0 0 24px; }
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

.btn { display: inline-block; padding: 11px 20px; border-radius: 3px; font-size: 15px; border: 1px solid var(--accent); font-family: "Source Sans 3", sans-serif; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #17564679; text-decoration: none; filter: brightness(0.9); }
.btn-ghost { color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); text-decoration: none; }

/* Pilares */
.pilares { padding: 56px 0; border-bottom: 1px solid var(--linea); }
.pilares h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--tinta-muted); margin: 0 0 28px; font-family: "IBM Plex Mono", monospace; font-weight: 500; }
.pilar-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1px; background: var(--linea); border: 1px solid var(--linea); }
.pilar-card { background: var(--papel); padding: 26px 22px; transition: background 0.15s ease; }
.pilar-card:hover { background: var(--papel-alzado); }
.pilar-card h3 { font-size: 19px; margin: 0 0 8px; font-weight: 500; }
.pilar-card p { font-size: 15px; color: var(--tinta-muted); margin: 0; }

/* Temas — flat list estilo Ango */
.temas-flat { display: flex; flex-wrap: wrap; gap: 10px 14px; padding: 28px 0 8px; }
.temas-flat a { font-family: "IBM Plex Mono", monospace; font-size: 14px; color: var(--tinta-muted); border-bottom: 1px dotted var(--linea); }
.temas-flat a:hover { color: var(--accent); text-decoration: none; border-bottom-color: var(--accent); }

/* Últimos artículos */
.ultimos { padding: 56px 0; border-bottom: 1px solid var(--linea); }
.ultimos h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--tinta-muted); margin: 0 0 28px; font-family: "IBM Plex Mono", monospace; font-weight: 500; }
.post-row { display: block; padding: 18px 0; border-bottom: 1px solid var(--linea); }
.post-row:last-child { border-bottom: none; }
.post-row .meta { font-size: 13px; color: var(--tinta-muted); text-transform: uppercase; letter-spacing: 0.04em; font-family: "IBM Plex Mono", monospace; }
.post-row h3 { font-size: 21px; margin: 6px 0 4px; color: var(--tinta); font-weight: 500; }
.post-row:hover h3 { color: var(--accent); }
.post-row p { margin: 0; color: var(--tinta-muted); font-size: 16px; }

/* Newsletter box */
.newsletter-box { padding: 48px 0; border-bottom: 1px solid var(--linea); }
.newsletter-box .box { background: var(--papel-alzado); border: 1px solid var(--linea); border-radius: 4px; padding: 32px; }
.newsletter-box h2 { font-size: 24px; margin: 0 0 8px; }
.newsletter-box p { color: var(--tinta-muted); margin: 0 0 20px; }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter-form input[type=email] { flex: 1; min-width: 220px; padding: 11px 14px; border: 1px solid var(--linea); border-radius: 3px; background: var(--papel); color: var(--tinta); font-size: 15px; font-family: inherit; }
.newsletter-note { font-size: 13px; color: var(--tinta-muted); margin-top: 10px; }

/* Footer */
footer.site { padding: 40px 0 64px; color: var(--tinta-muted); font-size: 14px; }
footer.site a { color: var(--tinta-muted); }
footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 10px; }

/* Archivo — tipo Sofía Contreras */
.archive-header { padding: 48px 0 24px; border-bottom: 1px solid var(--linea); }
.archive-header h1 { font-size: 30px; margin: 0 0 10px; }
.archive-header p { color: var(--tinta-muted); font-size: 17px; max-width: 560px; }

.archive-list { padding: 12px 0 56px; }
.archive-item { display: block; padding: 20px 0; border-bottom: 1px solid var(--linea); }
.archive-item .date { font-size: 13px; color: var(--tinta-muted); font-family: "IBM Plex Mono", monospace; }
.archive-item h3 { font-size: 20px; margin: 6px 0 4px; font-weight: 500; }
.archive-item:hover h3 { color: var(--accent); }
.archive-item p { margin: 0; color: var(--tinta-muted); font-size: 15px; }

/* Chip de nivel de respaldo — el elemento firma del sitio */
.nivel {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.03em;
  padding: 3px 8px 3px 6px;
  border-radius: 3px;
  vertical-align: middle;
}
.nivel::before { content: "●"; font-size: 8px; }
.nivel-1 { background: var(--nivel1-soft); color: var(--nivel1); }
.nivel-2 { background: var(--nivel2-soft); color: var(--nivel2); }
.nivel-3 { background: var(--nivel3-soft); color: var(--nivel3); }
.nivel-pendiente { background: var(--papel-alzado); color: var(--tinta-muted); border: 1px dashed var(--linea); }

.badge { display: inline-block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; padding: 2px 8px; border-radius: 3px; background: var(--accent-soft); color: var(--accent); margin-left: 8px; font-family: "IBM Plex Mono", monospace; }

/* Post page */
article.post { padding: 48px 0 64px; }
article.post .post-meta { color: var(--tinta-muted); font-size: 14px; margin-bottom: 10px; font-family: "IBM Plex Mono", monospace; }
article.post h1 { font-size: 32px; margin: 0 0 24px; }
article.post p { margin: 0 0 20px; font-size: 18px; }
article.post .credit { font-size: 13px; color: var(--tinta-muted); font-style: italic; }
article.post .signature { margin-top: 36px; font-family: "Literata", serif; }
.post-cta { margin: 40px 0; padding: 28px; background: var(--papel-alzado); border: 1px solid var(--linea); border-radius: 4px; }
.post-cta h3 { margin: 0 0 8px; font-size: 20px; }
.post-cta p { color: var(--tinta-muted); margin: 0 0 16px; }

/* Programas page */
.programa-hero { padding: 56px 0 40px; border-bottom: 1px solid var(--linea); }
.programa-hero h1 { font-size: 32px; margin: 14px 0 12px; }
.sintomas-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; padding: 40px 0; }
.sintoma-card { padding: 20px; border: 1px solid var(--linea); border-radius: 4px; }
.sintoma-card h3 { font-size: 17px; margin: 0 0 8px; }
.sintoma-card ul { margin: 0; padding-left: 18px; color: var(--tinta-muted); font-size: 15px; }
.pasos { padding: 40px 0; border-top: 1px solid var(--linea); }
.paso { display: flex; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--linea); }
.paso:last-child { border-bottom: none; }
.paso .n { font-family: "Literata", serif; font-size: 28px; color: var(--accent); min-width: 44px; }
.paso h3 { margin: 0 0 6px; font-size: 19px; }
.paso p { margin: 0; color: var(--tinta-muted); }

.notice { border-left: 3px solid var(--accent); padding: 12px 18px; background: var(--papel-alzado); font-size: 15px; color: var(--tinta-muted); margin: 24px 0; }

@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .hero h1 { font-size: 27px; }
  article.post h1 { font-size: 25px; }
}