/* ============================================================
   Jaime Pesca · sitio personal
   Sistema de diseño: tokens en :root, modo oscuro automático.
   Cada página define su tono con una clase en <body>:
   .p-home | .p-research | .p-growth | .p-data | .p-teach
   Cada tono tiene un acento (--c-*) y una versión profunda (--d-*)
   para el héroe y el bloque de contacto.
   ============================================================ */

:root {
  /* Neutros (porcelana fría, no crema) */
  --paper: #f5f6f4;
  --surface: #fdfdfc;
  --ink: #1c2422;
  --muted: #57635e;
  --line: #d9ded9;

  /* Tonos por página: acento (--c-*) y profundo (--d-*) */
  --c-home: #a31f34;     /* carmesí: portada (a juego con la foto) */
  --c-research: #1f5673; /* azul petróleo: investigación & docencia */
  --c-growth: #a3480f;   /* ámbar quemado: growth & media buying */
  --c-data: #21705e;     /* viridiana: data science */
  --c-teach: #6a4fa5;    /* violeta: formación empresarial */

  --d-home: #5c1320;
  --d-research: #10324a;
  --d-growth: #5a2507;
  --d-data: #0d3a30;
  --d-teach: #2d1f55;

  /* Texto sobre los fondos profundos */
  --on-deep: #ffffff;
  --on-deep-muted: rgba(255, 255, 255, 0.82);

  /* Texto sobre un fondo de acento (botones) */
  --on-accent: #ffffff;

  /* Tono activo (se redefine por página en body.p-*) */
  --accent: var(--c-research);
  --deep: var(--d-research);

  /* Marcador de contenido pendiente de editar */
  --flag-bg: #f3e8c8;
  --flag-ink: #6d5716;

  /* Tipografía: Neue Haas Grotesk, la del MIT (Adobe Fonts), si está
     disponible; si no, Inter Tight / Inter (Google Fonts), muy parecidas. */
  --font-display: "neue-haas-grotesk-display", "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "neue-haas-grotesk-text", "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-label: var(--font-body);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #141816;
    --surface: #1c2220;
    --ink: #e8ece9;
    --muted: #9cA8a2;
    --line: #323b37;
    --c-home: #e07a8a;
    --c-research: #6aa8c9;
    --c-growth: #e0904f;
    --c-data: #5cb39e;
    --c-teach: #a992d6;
    --flag-bg: #3d3517;
    --flag-ink: #e3cd7b;
    --on-accent: #141816;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #141816;
  --surface: #1c2220;
  --ink: #e8ece9;
  --muted: #9cA8a2;
  --line: #323b37;
  --c-home: #e07a8a;
  --c-research: #6aa8c9;
  --c-growth: #e0904f;
  --c-data: #5cb39e;
  --c-teach: #a992d6;
  --flag-bg: #3d3517;
  --flag-ink: #e3cd7b;
  --on-accent: #141816;
}

/* Tono por página */
body.p-home     { --accent: var(--c-home);     --deep: var(--d-home); }
body.p-research { --accent: var(--c-research); --deep: var(--d-research); }
body.p-growth   { --accent: var(--c-growth);   --deep: var(--d-growth); }
body.p-data     { --accent: var(--c-data);     --deep: var(--d-data); }
body.p-teach    { --accent: var(--c-teach);    --deep: var(--d-teach); }

/* Se declaran en body (no en :root) para que usen el acento de cada página */
body {
  --accent-soft: color-mix(in srgb, var(--accent) 10%, var(--paper));
  --accent-faint: color-mix(in srgb, var(--accent) 5%, var(--paper));
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

[hidden] { display: none !important; }

/* Mientras carga la traducción (ver assets/js/i18n.js) */
.i18n-pending body { visibility: hidden; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

html { height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1060px;
  margin-inline: auto;
  padding-inline: 20px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
  margin: 0;
}

p { margin: 0; max-width: 62ch; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }

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

.eyebrow {
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Etiqueta para contenido que Jaime debe personalizar */
.edit-tag {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  background: var(--flag-bg);
  color: var(--flag-ink);
  vertical-align: middle;
}

/* ---------- Cabecera / navegación ---------- */
.site-head {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 0.9rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  font-family: var(--font-label);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
}

.nav-menu {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.nav-menu a {
  font-family: var(--font-label);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding-block: 0.2rem;
}

.nav-menu a:hover { color: var(--ink); }

.nav-menu a[aria-current="page"] {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

/* Selector de idioma */
.nav-tools {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
}

.lang-switch svg { width: 16px; height: 16px; flex: none; }

.lang-switch select {
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.35rem 0.5rem;
  cursor: pointer;
}

.lang-switch select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .nav-tools { margin-left: auto; }
  .nav-menu {
    display: none;
    order: 3;
    margin-left: 0;
    width: 100%;
    flex-direction: column;
    gap: 0.6rem;
    padding-block: 0.6rem 1rem;
  }
  .nav-menu.open { display: flex; }
}

/* ---------- Héroe ---------- */
.hero {
  padding-block: 4.5rem 3.5rem;
}

.hero.tinted {
  background: var(--deep);
  color: var(--on-deep);
}

.hero.tinted .eyebrow { color: var(--on-deep-muted); }

.hero.tinted .lede { color: var(--on-deep-muted); }

.hero.tinted .btn { background: var(--on-deep); color: var(--deep); }

/* Portada: héroe claro con el tono suave */
.p-home .hero { background: var(--accent-soft); }

.hero .eyebrow { display: block; margin-bottom: 1rem; }

.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.hero .lede {
  margin-top: 1.4rem;
  font-size: clamp(1.15rem, 2.4vw, 1.35rem);
  max-width: 36ch;
  color: var(--muted);
}

.hero .btn { margin-top: 2rem; }

.hero .chip-row { margin-top: 1.8rem; }

/* Héroe con foto (hub) */
.hero-split {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
  align-items: center;
}

/* La foto va en images/; si no carga, se ven las iniciales */
.portrait {
  position: relative;
  width: clamp(170px, 24vw, 250px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--accent-soft);
  border: 1px solid var(--line);
}

.portrait .initials {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 3.2rem;
  color: var(--accent);
}

.portrait img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 720px) {
  .hero-split { grid-template-columns: 1fr; gap: 1.8rem; }
  .portrait { order: -1; width: 150px; }
}

/* ---------- Recuadro destacado (Optimización en Acción) ---------- */
.promo {
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  padding: clamp(1.4rem, 4vw, 2.4rem);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.promo h3 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700;
}

.promo p { color: var(--ink); }

.promo .chip-row { margin-top: 0.3rem; }

.promo .btn { align-self: flex-start; margin-top: 0.6rem; }

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.3rem;
  border-radius: 4px;
  background: var(--accent);
  color: var(--on-accent);
  transition: filter 0.15s ease;
}

.btn:hover { filter: brightness(0.92); }

/* ---------- Secciones ---------- */
.section { padding-block: 3.5rem; }

/* Fondos alternados con el tono de la página */
main > .section:nth-child(even of .section) { background: var(--accent-faint); }

.section h2 {
  font-size: 1.55rem;
  font-weight: 600;
  margin-bottom: 1.8rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.section h2::before {
  content: "";
  width: 0.55em;
  height: 0.55em;
  background: var(--accent);
  flex: none;
}

/* ---------- Tarjetas de perfil (hub) ---------- */
.profile-grid {
  display: grid;
  /* 2 x 2 en escritorio, 1 columna en móvil */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 1.2rem;
}

.profile-card {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.6rem 1.5rem 1.5rem;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.profile-card:hover {
  border-color: var(--card-accent);
  transform: translateY(-2px);
}

.profile-card .eyebrow { color: var(--card-accent); }

.profile-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
}

.profile-card:hover h3 { color: var(--card-accent); }

.profile-card p {
  font-size: 0.98rem;
  color: var(--muted);
}

.profile-card .go {
  margin-top: auto;
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--card-accent);
}

.profile-card.card-research { --card-accent: var(--c-research); }
.profile-card.card-growth   { --card-accent: var(--c-growth); }
.profile-card.card-data     { --card-accent: var(--c-data); }
.profile-card.card-teach    { --card-accent: var(--c-teach); }

/* ---------- Listas de servicios ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.6rem 2.2rem;
}

/* Para 4 elementos: 2 x 2 en escritorio */
.service-grid.pairs {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
}

.service {
  border-top: 2px solid var(--line);
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service h3 { font-size: 1.08rem; font-weight: 600; }

.service p { font-size: 0.97rem; color: var(--muted); }

/* ---------- Destacados ---------- */
.highlight-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}

.highlight-list li {
  border-left: 3px solid var(--accent);
  padding-left: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.highlight-list strong {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}

.highlight-list span { color: var(--muted); font-size: 0.97rem; }

/* Estado de una publicación (publicada, en revisión, en preparación) */
.status {
  align-self: flex-start;
  font-family: var(--font-label);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid currentColor;
  border-radius: 3px;
  padding: 0.05rem 0.45rem;
}

.highlight-list .meta { font-size: 0.9rem; }

/* ---------- Cifras destacadas ---------- */
.stat-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 1.2rem 2rem;
}

.stat-row li {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.stat-row strong {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent);
}

.stat-row span { font-size: 0.95rem; color: var(--muted); max-width: 30ch; }

/* ---------- Datos rápidos / stack ---------- */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  font-family: var(--font-label);
  font-size: 0.8rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
}

/* ---------- CTA / contacto ---------- */
.cta {
  background: var(--deep);
  color: var(--on-deep);
  padding-block: 3.2rem;
}

.cta h2 {
  font-size: 1.7rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.cta p { color: var(--on-deep-muted); margin-bottom: 1.5rem; }

.cta .mail {
  font-family: var(--font-label);
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  color: var(--on-deep);
  word-break: break-all;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.6rem;
}

/* En el bloque profundo, el botón invierte colores */
.cta .btn {
  background: var(--on-deep);
  color: var(--deep);
}

/* ---------- Pie ---------- */
.site-foot {
  background: var(--accent-soft);
  border-top: 3px solid var(--accent);
  padding-block: 2.2rem 2.2rem;
}

.foot-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.4rem 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.6rem;
}

.foot-id {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.foot-tag {
  font-family: var(--font-label);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* Redes sociales */
.social {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
}

.social a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-label);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: none;
  padding-block: 0.3rem;
}

.social a:hover { color: var(--accent); }

.social svg { width: 18px; height: 18px; flex: none; }

.foot-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.foot-row a { color: var(--muted); }

.foot-row a:hover { color: var(--ink); }

/* Enlace final a learn-optimization, en todas las páginas */
.foot-row .foot-learn { color: var(--accent); text-decoration: none; }

.foot-row .foot-learn [data-i18n] { text-decoration: underline; text-underline-offset: 3px; }

.foot-row .foot-learn .domain { white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  .profile-card, .btn { transition: none; }
  .profile-card:hover { transform: none; }
}
