/* Blog de diversum.mx. Copia del sistema visual del sitio de Lovable (src/index.css del repo diversummx/diversum):
   noir monocromático, Arena Uno para todo y JetBrains Mono en los eyebrows. Si cambia el sitio, se cambia aquí. */

@font-face { font-family: 'Arena Uno'; src: url('/fonts/ArenaUno-Thin.otf') format('opentype'); font-weight: 100 300; font-display: swap; }
@font-face { font-family: 'Arena Uno'; src: url('/fonts/ArenaUno-Regular.otf') format('opentype'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Arena Uno'; src: url('/fonts/ArenaUno-Italic.otf') format('opentype'); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: 'Arena Uno'; src: url('/fonts/ArenaUno-Medium.otf') format('opentype'); font-weight: 500 900; font-display: swap; }

:root {
  --fondo: #0A0A0A;
  --fondo-2: #141414;
  --fondo-3: #1F1F1F;
  --borde: #2A2A2A;
  --borde-fuerte: #3D3D3D;
  --texto: #F2F2F2;
  --texto-2: #A8A8A8;
  --texto-3: #6B6B6B;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --halo-top: radial-gradient(ellipse at 50% 0%, rgba(250,250,250,0.16) 0%, transparent 60%);
  --curva: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font-family: 'Arena Uno', 'Inter', system-ui, sans-serif; font-feature-settings: "ss01", "kern";
  -webkit-font-smoothing: antialiased; line-height: 1.5;
}
::selection { background: var(--texto); color: var(--fondo); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-weight: 500; margin: 0; }

/* ---------- layout ---------- */
.container-edge { padding-left: clamp(20px, 5vw, 80px); padding-right: clamp(20px, 5vw, 80px); margin: 0 auto; max-width: 1440px; width: 100%; }
.lectura { max-width: calc(760px + 2 * clamp(20px, 5vw, 80px)); }
.lectura-ancha { max-width: calc(1040px + 2 * clamp(20px, 5vw, 80px)); }
.bloque { padding-top: clamp(40px, 6vh, 80px); padding-bottom: clamp(40px, 6vh, 80px); }

/* ---------- tipografía ---------- */
.eyebrow { font-family: var(--mono); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.18em; color: var(--texto-3); font-weight: 500; margin: 0 0 16px; }
.display-l { font-size: clamp(2.25rem, 5vw, 4.5rem); line-height: 1.05; letter-spacing: -0.02em; }
.display-m { font-size: clamp(1.9rem, 3.4vw, 3rem); line-height: 1.12; letter-spacing: -0.015em; }
.display-s { font-size: clamp(1.4rem, 2.2vw, 1.9rem); line-height: 1.2; letter-spacing: -0.01em; margin-bottom: 12px; }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.55; color: var(--texto-2); margin: 20px 0 0; }
.texto-2 { color: var(--texto-2); }
.texto-3 { color: var(--texto-3); }

/* ---------- botones ---------- */
.btn-primary, .btn-secondary {
  display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; font: inherit; font-weight: 500;
  font-size: 0.95rem; padding: 14px 28px; text-decoration: none; cursor: pointer; border: 0;
  transition: transform 220ms var(--curva), box-shadow 220ms var(--curva), border-color 220ms var(--curva);
}
.btn-primary { background: var(--texto); color: var(--fondo); }
.btn-primary:hover { transform: scale(1.02); box-shadow: 0 12px 40px -8px rgba(255,255,255,0.25); }
.btn-secondary { background: transparent; color: var(--texto); border: 1px solid var(--borde-fuerte); }
.btn-secondary:hover { border-color: var(--texto); }
.btn-chico { padding: 10px 20px; font-size: 0.875rem; }
.arrow-link { color: var(--texto); font-weight: 500; text-decoration: none; border-bottom: 1px solid var(--borde-fuerte); }
.arrow-link:hover { border-color: var(--texto); }

/* ---------- cabecera ---------- */
.cabecera { position: sticky; top: 0; z-index: 50; background: rgba(10,10,10,0.72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(42,42,42,0.6); }
.cabecera-fila { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { height: 28px; width: auto; }
.nav { display: flex; gap: 36px; font-size: 0.875rem; }
.nav a { text-decoration: none; opacity: 0.9; padding: 4px 0; }
.nav a:hover { opacity: 1; }
.nav a[aria-current="page"] { opacity: 1; border-bottom: 1px solid var(--texto); }
.menu-movil { display: none; position: relative; }
.menu-movil summary { list-style: none; cursor: pointer; font-size: 0.9rem; padding: 8px 14px; border: 1px solid var(--borde-fuerte); border-radius: 999px; }
.menu-movil summary::-webkit-details-marker { display: none; }
.menu-movil nav { position: absolute; right: 0; top: 48px; display: flex; flex-direction: column; gap: 18px; padding: 24px; min-width: 240px; background: var(--fondo-2); border: 1px solid var(--borde); border-radius: 16px; }
.menu-movil nav a { text-decoration: none; font-size: 1.15rem; }
.menu-movil nav .btn-primary { font-size: 0.9rem; justify-content: center; }
@media (max-width: 860px) {
  .nav, .solo-escritorio { display: none; }
  .menu-movil { display: block; }
  .cabecera-fila { height: 64px; }
}

/* ---------- halo ---------- */
.halo-bg-top { position: relative; }
.halo-bg-top::before { content: ""; position: absolute; inset: 0; background: var(--halo-top); pointer-events: none; }
.halo-bg-top > * { position: relative; }

/* ---------- cabeza del post ---------- */
.post-cabeza { padding-top: clamp(48px, 9vh, 112px); padding-bottom: clamp(32px, 5vh, 56px); }
.migas { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--texto-3); margin-bottom: 20px; }
.migas a { text-decoration: none; color: var(--texto-2); }
.migas a:hover { color: var(--texto); }
.firma { display: flex; align-items: center; gap: 14px; margin-top: 32px; font-size: 0.9rem; }
.firma img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.firma p { margin: 0; line-height: 1.4; }
.firma a { text-decoration: none; font-weight: 500; }
.firma span { color: var(--texto-3); font-size: 0.85rem; }
.portada { margin-top: 8px; margin-bottom: 0; }
.portada img { width: 100%; border-radius: 20px; border: 1px solid var(--borde); aspect-ratio: 1200 / 630; object-fit: cover; }

/* ---------- cuerpo del post ---------- */
.post-rejilla { display: grid; grid-template-columns: 240px minmax(0, 760px); gap: 64px; justify-content: center; padding-top: clamp(32px, 5vh, 64px); }
.indice { position: sticky; top: 104px; align-self: start; font-size: 0.875rem; }
.indice summary { cursor: pointer; list-style: none; }
.indice summary::-webkit-details-marker { display: none; }
.indice ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; border-left: 1px solid var(--borde); }
.indice li { padding-left: 14px; }
.indice a { color: var(--texto-2); text-decoration: none; line-height: 1.4; display: block; }
.indice a:hover { color: var(--texto); }
@media (max-width: 1080px) {
  .post-rejilla { grid-template-columns: minmax(0, 760px); gap: 32px; }
  .indice { position: static; padding: 20px; border: 1px solid var(--borde); border-radius: 16px; background: var(--fondo-2); }
  .indice ol { border: 0; }
  .indice li { padding-left: 0; }
}

.prosa { font-size: 1.125rem; line-height: 1.75; color: #E4E4E4; }
.prosa > *:first-child { margin-top: 0; }
.prosa p, .prosa ul, .prosa ol, .prosa blockquote, .prosa table, .prosa figure { margin: 0 0 1.4em; }
.prosa h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.2; letter-spacing: -0.01em; margin: 2.2em 0 0.7em; color: var(--texto); scroll-margin-top: 96px; }
.prosa h3 { font-size: 1.3rem; line-height: 1.3; margin: 1.8em 0 0.6em; color: var(--texto); scroll-margin-top: 96px; }
.prosa a { color: var(--texto); text-decoration: underline; text-decoration-color: var(--borde-fuerte); text-underline-offset: 3px; }
.prosa a:hover { text-decoration-color: var(--texto); }
.prosa strong { color: var(--texto); font-weight: 500; }
.prosa em { font-style: italic; }
.prosa ul, .prosa ol { padding-left: 1.3em; }
.prosa li { margin-bottom: 0.5em; }
.prosa li::marker { color: var(--texto-3); }
.prosa blockquote { border-left: 2px solid var(--texto); padding: 4px 0 4px 20px; color: var(--texto); font-size: 1.2rem; }
.prosa hr { border: 0; border-top: 1px solid var(--borde); margin: 2.5em 0; }
.prosa img { border-radius: 14px; border: 1px solid var(--borde); }
.prosa code { font-family: var(--mono); font-size: 0.9em; background: var(--fondo-3); padding: 2px 6px; border-radius: 6px; }
.prosa table { width: 100%; border-collapse: collapse; font-size: 0.95rem; display: block; overflow-x: auto; }
.prosa th, .prosa td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--borde); vertical-align: top; }
.prosa th { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--texto-3); font-weight: 500; }
/* Respuesta directa arriba: el primer párrafo destaca un poco */
.prosa > p:first-child { font-size: 1.2rem; color: var(--texto); }
/* Bloque de experiencia propia (en el Markdown: > **Lo que vemos en las cuentas que manejamos**) */
.prosa .experiencia { background: var(--fondo-2); border: 1px solid var(--borde); border-radius: 16px; padding: 24px 28px; margin: 0 0 1.4em; }
.prosa .experiencia > :last-child { margin-bottom: 0; }

/* ---------- CTA y autor ---------- */
.cta-caja { background: var(--fondo-2); border: 1px solid var(--borde-fuerte); border-radius: 24px; padding: clamp(28px, 4vw, 48px); background-image: radial-gradient(circle at 85% 15%, rgba(250,250,250,0.10) 0%, transparent 55%); }
.cta-caja .texto-2 { margin: 0 0 24px; max-width: 560px; }
.autor-caja { display: flex; gap: 20px; align-items: flex-start; margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--borde); }
.autor-caja img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; flex: none; }
.autor-caja p { margin: 0 0 6px; }
.autor-caja a { text-decoration: none; font-weight: 500; font-size: 1.1rem; }
.autor-caja .eyebrow { margin-bottom: 6px; }
.autor-cabeza { display: flex; gap: 32px; align-items: center; }
.autor-cabeza img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; flex: none; }
@media (max-width: 640px) { .autor-cabeza { flex-direction: column; align-items: flex-start; } }

/* ---------- tarjetas ---------- */
.rejilla { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
@media (max-width: 400px) { .rejilla { grid-template-columns: 1fr; } }
.noir-card { border: 1px solid var(--borde); background: var(--fondo-2); border-radius: 20px; transition: transform 320ms var(--curva), border-color 320ms var(--curva), box-shadow 320ms var(--curva); }
.noir-card:hover { transform: translateY(-4px); border-color: var(--borde-fuerte); box-shadow: 0 24px 60px -20px rgba(255,255,255,0.08); }
.tarjeta { display: flex; flex-direction: column; padding: 28px; text-decoration: none; min-height: 260px; }
.tarjeta h3 { font-size: 1.3rem; line-height: 1.25; margin-bottom: 12px; }
.tarjeta .texto-2 { font-size: 0.95rem; line-height: 1.5; margin: 0 0 20px; }
.tarjeta-meta { margin: auto 0 0; font-size: 0.8rem; color: var(--texto-3); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.chips a { text-decoration: none; font-size: 0.85rem; padding: 8px 16px; border: 1px solid var(--borde-fuerte); border-radius: 999px; color: var(--texto-2); }
.chips a:hover { color: var(--texto); border-color: var(--texto); }

/* ---------- pie ---------- */
.pie { border-top: 1px solid var(--borde); background: var(--fondo-2); margin-top: clamp(40px, 6vh, 80px); }
.pie-columnas { display: grid; grid-template-columns: repeat(4, 1fr); gap: 48px; padding-top: 72px; padding-bottom: 72px; font-size: 0.875rem; }
.pie-columnas .logo { margin-bottom: 20px; }
.pie-columnas p { line-height: 1.6; }
.pie-columnas ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.pie-columnas ul a { color: var(--texto-2); text-decoration: none; }
.pie-columnas ul a:hover { color: var(--texto); }
.pie-final { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; padding-top: 28px; padding-bottom: 28px; border-top: 1px solid var(--borde); font-size: 0.75rem; color: var(--texto-3); }
.pie-final p { margin: 0; }
@media (max-width: 860px) { .pie-columnas { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .pie-columnas { grid-template-columns: 1fr; padding-top: 48px; padding-bottom: 48px; } }

.post-cabeza .lead { max-width: 760px; }