/* =========================================================
   DESIGN_udec v2.0 — Hoja de estilos compartida
   Universidad de Concepción · Doctorado en Ciencias Físicas
   Patch v2.0.2 — auditoría impeccable + marca sin subtítulo
   ========================================================= */

:root {
  color-scheme: light;

  /* Colores institucionales UdeC */
  --azul: #223c6a;
  --azul-hover: #1a2f54;
  --azul-research: #5a7ba8;
  --azul-exam: #dce6f2;
  --azul-profundo: #191d33;
  --amarillo: #e69b0a;
  --rojo: #d21428;
  --gris-udec: #a0a0a0;

  /* Neutrales */
  --obsidiana: #09090b;
  --grafito: #18181b;
  --pizarra: #27272a;
  --hierro: #3f3f46;
  --acero: #52525b;
  --niebla: #71717a;
  --ceniza: #a1a1aa;
  --bruma: #d4d4d8;
  --nube: #ececee;
  --papel: #f4f4f5;
  --nieve: #ffffff;
  --fondo: #f8f9fb;

  /* Excepción institucional: badge CNA */
  --crema-cna: #fdf6e3;
  --borde-cna: #f0d591;
  --texto-cna: #7a4d00;
  --texto-cna-2: #a06a00;

  /* Radios */
  --r-badge: 12px;
  --r-control: 14px;
  --r-card: 36px;

  /* Motion */
  --t-fast: 120ms;
  --t-base: 200ms;

  /* Layout */
  --max: 1200px;
  --gutter: 32px;
  --section-gap: 72px;
  --nav-h: 72px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}
body {
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  background: var(--fondo);
  color: var(--grafito);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: 'Poppins', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--obsidiana);
}
a { color: var(--azul); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }
button { font: inherit; }

:focus-visible {
  outline: 2px solid var(--azul);
  outline-offset: 2px;
  border-radius: 4px;
}
.why-band :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--amarillo);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ─── Skip link ─── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  background: var(--azul);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--r-control);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: top var(--t-fast);
}
.skip-link:focus {
  top: 16px;
  outline: 2px solid var(--amarillo);
  outline-offset: 2px;
  text-decoration: none;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ─── Botones ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  min-height: 44px;
  border-radius: var(--r-control);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color var(--t-fast), border-color var(--t-fast), color var(--t-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--azul); color: #fff; border-color: var(--azul-hover); }
.btn-primary:hover { background: var(--azul-hover); }
.btn-ghost { background: transparent; color: var(--azul); border-color: var(--azul); }
.btn-ghost:hover { background: rgba(34,60,106,0.06); }
.btn-ghost-inv { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-ghost-inv:hover { background: rgba(255,255,255,0.1); }
.btn-white { background: #fff; color: var(--azul); }
.btn-white:hover { background: var(--papel); }
.btn-sm { padding: 10px 16px; min-height: 44px; font-size: 13px; }

/* ─── Badges ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--r-badge);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.02em;
}
.badge-accent { background: var(--amarillo); color: var(--grafito); }
.badge-outline { background: transparent; color: var(--grafito); border: 1px solid var(--nube); }
.badge-alert { background: var(--rojo); color: #fff; }

/* ─── Card ─── */
.card {
  background: var(--nieve);
  border: 1px solid var(--nube);
  border-radius: var(--r-card);
  overflow: hidden;
}
.card-hover { transition: border-color var(--t-base); }
.card-hover:hover { border-color: var(--azul); }

/* ─── Eyebrow ─── */
.eyebrow {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--azul);
  margin-bottom: 12px;
}
.why-band .eyebrow { color: rgba(255,255,255,0.7); }

/* ─── Nav ─── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248,249,251,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nube);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-logo { height: 38px; width: auto; }
.brand-divider { width: 1px; height: 30px; background: var(--nube); }
.brand-text .name {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--obsidiana);
  line-height: 1.1;
}

.nav-list {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
  list-style: none;
}
.nav-list a {
  font-size: 14px;
  color: var(--acero);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  display: inline-block;
}
.nav-list a:hover { color: var(--azul); text-decoration: none; }
.nav-list a.active {
  color: var(--azul);
  font-weight: 500;
  border-bottom-color: var(--azul);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--nube);
  border-radius: var(--r-control);
  overflow: hidden;
  background: var(--nieve);
}
.lang-toggle button {
  padding: 10px 14px;
  min-height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 12px;
  color: var(--acero);
}
.lang-toggle button[aria-pressed="true"] {
  background: var(--azul);
  color: #fff;
}
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--nube);
  border-radius: var(--r-control);
  padding: 10px 14px;
  min-height: 44px;
  cursor: pointer;
}
.menu-toggle svg { display: block; }

@media (max-width: 1024px) {
  .nav-list { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-inner.menu-open .nav-list {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--nieve);
    border-bottom: 1px solid var(--nube);
    padding: 16px 32px 24px;
    gap: 4px;
    align-items: stretch;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
  }
  .nav-inner.menu-open .nav-list a {
    padding: 14px 0 14px 12px;
    border-bottom: 1px solid var(--nube);
    border-left: 3px solid transparent;
  }
  .nav-inner.menu-open .nav-list a.active {
    border-left-color: var(--azul);
    border-bottom-color: var(--nube);
  }
  .site-nav { position: relative; }
  .nav-inner.menu-open { position: relative; }
}
@media (max-width: 640px) {
  .nav-inner { padding: 0 20px; gap: 12px; height: 64px; }
  .brand-divider, .brand-text { display: none; }
  .brand { gap: 0; }
  .brand-logo { height: 34px; }
  .nav-inner.menu-open .nav-list { top: 64px; padding: 12px 20px 20px; }
}

/* ─── Hero home ─── */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--fondo);
  border-bottom: 1px solid var(--nube);
}
.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    rgba(248,249,251,1) 0%,
    rgba(248,249,251,1) 32%,
    rgba(248,249,251,0.92) 48%,
    rgba(248,249,251,0.5) 72%,
    rgba(248,249,251,0) 100%);
}
.hero-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px var(--gutter) 72px;
  min-height: 560px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-content { max-width: 640px; }
.hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.05;
  margin-bottom: 22px;
  letter-spacing: -0.03em;
}
.hero h1 .accent { color: var(--azul); }
.hero .lead {
  font-size: 17px;
  line-height: 1.7;
  color: var(--acero);
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }

.accred-badge {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: var(--crema-cna);
  border: 1px solid var(--borde-cna);
  padding: 12px 20px;
  border-radius: var(--r-card);
}
.accred-badge img { height: 36px; width: auto; flex-shrink: 0; }
.accred-badge .t1 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--texto-cna);
}
.accred-badge .t2 {
  font-size: 12px;
  color: var(--texto-cna-2);
  margin-top: 2px;
}

@media (max-width: 640px) {
  .hero-inner { padding: 56px 20px; min-height: auto; }
  .hero-overlay { background: rgba(248,249,251,0.94); }
  .accred-badge { flex-direction: column; align-items: flex-start; }
}

/* ─── Page hero (páginas internas) ─── */
.page-hero {
  background: var(--azul);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.page-hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
}
.page-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 48px;
  flex-wrap: wrap;
}
.page-hero-main { max-width: 640px; }
.page-hero .crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 12px;
  color: rgba(255,255,255,0.65);
}
.page-hero .crumb a { color: rgba(255,255,255,0.65); }
.page-hero .crumb .sep { color: rgba(255,255,255,0.35); }
.page-hero .crumb .current { color: rgba(255,255,255,0.95); }
.page-hero h1 {
  color: #fff;
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}
.page-hero .lead {
  color: rgba(255,255,255,0.8);
  font-size: 17px;
  line-height: 1.6;
  max-width: 620px;
}
.page-hero-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.page-hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-badge);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.95);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.page-hero-chip:hover { text-decoration: none; }
.page-hero-chip.accent {
  background: var(--amarillo);
  border-color: var(--amarillo);
  color: var(--grafito);
}
@media (max-width: 640px) {
  .page-hero { padding: 48px 0; }
  .page-hero-inner { gap: 24px; }
}

/* ─── Stats ─── */
.stats {
  background: var(--nieve);
  border-bottom: 1px solid var(--nube);
  padding: 40px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 0 32px;
  border-right: 1px solid var(--nube);
}
.stat:first-child { padding-left: 0; }
.stat:last-child { padding-right: 0; border-right: none; }
.stat .num {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 48px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--obsidiana);
}
.stat .num.is-achievement { color: var(--amarillo); }
.stat .lbl {
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--grafito);
  margin-top: 8px;
}
.stat .sub {
  font-size: 12px;
  color: var(--niebla);
  margin-top: 4px;
  line-height: 1.4;
}
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat {
    padding: 24px 0;
    border-right: none;
    border-bottom: 1px solid var(--nube);
  }
  .stat:nth-child(odd) { padding-right: 20px; border-right: 1px solid var(--nube); }
  .stat:nth-child(even) { padding-left: 20px; }
  .stat:nth-last-child(-n+2) { border-bottom: none; }
}

/* ─── Secciones ─── */
.section { padding: var(--section-gap) 0; border-bottom: 1px solid var(--nube); }
.section-alt { background: var(--nieve); }
.section h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 12px; }
.section-lead {
  color: var(--acero);
  font-size: 16px;
  line-height: 1.7;
  max-width: 640px;
}

/* ─── Grid de cards ─── */
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 1024px) { .cards-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) {
  .cards-4, .cards-3, .cards-2 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .cards-4 { grid-template-columns: 1fr; } }

/* ─── Research card ─── */
.research-card .thumb { aspect-ratio: 16 / 10; overflow: hidden; }
.research-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.research-card .body { padding: 24px; }
.research-card h3 { font-size: 16px; margin-bottom: 8px; }
.research-card p { font-size: 13px; line-height: 1.65; color: var(--acero); }

/* ─── Why band ─── */
.why-band { background: var(--azul); color: #fff; padding: var(--section-gap) 0; }
.why-band h2 { color: #fff; margin-bottom: 48px; }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.why-item { border-top: 2px solid rgba(255,255,255,0.25); padding-top: 24px; }
.why-item h3 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.why-item h3::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--amarillo);
  border-radius: 50%;
  flex-shrink: 0;
}
.why-item p {
  color: rgba(255,255,255,0.78);
  font-size: 13px;
  line-height: 1.65;
}
@media (max-width: 768px) { .why-grid { grid-template-columns: 1fr; } }

/* ─── Split admisión ─── */
.split-2 {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  align-items: center;
}
.split-2 h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 18px; }
.split-2 .lead {
  color: var(--acero);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}
@media (max-width: 900px) { .split-2 { grid-template-columns: 1fr; gap: 32px; } }

.req-list { display: flex; flex-direction: column; gap: 14px; margin-top: 20px; }
.req-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.55;
  color: var(--acero);
}
.req-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--azul);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
  font-size: 11px; font-weight: 700;
}

/* ─── Coordinación ─── */
.coord-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.coord-card {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 20px 24px;
  background: var(--nieve);
  border: 1px solid var(--nube);
  border-radius: var(--r-card);
}
.coord-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--azul);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 15px;
  flex-shrink: 0;
}
.coord-avatar.gold { background: var(--amarillo); color: var(--grafito); }
.coord-role {
  font-family: 'Poppins', sans-serif;
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--niebla);
  margin-bottom: 3px;
}
.coord-name {
  font-family: 'Poppins', sans-serif;
  font-weight: 600; font-size: 14px;
  color: var(--obsidiana); line-height: 1.2;
}
.coord-email {
  font-size: 12px;
  color: var(--azul);
  margin-top: 4px;
  word-break: break-all;
}
@media (max-width: 900px) { .coord-grid { grid-template-columns: 1fr; } }

/* ─── Contact strip ─── */
.contact-strip {
  display: flex;
  gap: 48px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.contact-item .k {
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--niebla);
  margin-bottom: 5px;
}
.contact-item .v { color: var(--grafito); font-size: 14px; }

/* ─── Notices ─── */
.notice {
  background: var(--nieve);
  border: 1px solid var(--nube);
  border-radius: var(--r-card);
  padding: 20px 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.notice + .notice { margin-top: 12px; }
.notice-date { min-width: 56px; text-align: center; flex-shrink: 0; }
.notice-date .d {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 20px;
  color: var(--azul);
  line-height: 1;
}
.notice-date .y { font-size: 11px; color: var(--niebla); margin-top: 4px; }
.notice h3 { font-size: 14px; margin-bottom: 4px; }
.notice p { font-size: 13px; color: var(--acero); line-height: 1.6; }

/* ─── Steps (admisión) ─── */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 28px; left: 10%; right: 10%;
  height: 2px;
  background: var(--nube);
  z-index: 0;
}
.step { text-align: center; position: relative; z-index: 1; }
.step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--azul);
  color: #fff;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { font-size: 13px; margin-bottom: 6px; }
.step p {
  font-size: 12px;
  line-height: 1.5;
  color: var(--niebla);
  max-width: 160px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .steps::before { display: none; }
  .step { text-align: left; display: flex; gap: 16px; align-items: flex-start; }
  .step-num { margin: 0; flex-shrink: 0; }
  .step p { margin: 0; max-width: none; }
}

/* ─── Filter chips ─── */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.filter-chips { display: flex; gap: 4px; flex-wrap: wrap; }
.chip {
  padding: 10px 18px;
  border-radius: var(--r-control);
  border: 1px solid var(--nube);
  background: var(--nieve);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 13px;
  color: var(--acero);
  cursor: pointer;
  transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);
  min-height: 44px;
}
.chip:hover { border-color: var(--azul); color: var(--azul); }
.chip[aria-pressed="true"] {
  background: var(--azul);
  color: #fff;
  border-color: var(--azul);
  font-weight: 600;
}
.search-input {
  padding: 12px 16px;
  border: 1px solid var(--nube);
  border-radius: var(--r-control);
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  width: 260px;
  min-height: 44px;
  background: var(--nieve);
  color: var(--obsidiana);
}
.search-input:focus { outline: 2px solid var(--azul); outline-offset: 1px; border-color: var(--azul); }
@media (max-width: 640px) { .search-input { width: 100%; } }

/* ─── Faculty card ─── */
.faculty-card {
  border: 1px solid var(--nube);
  border-radius: var(--r-badge);
  padding: 24px 20px;
  background: var(--nieve);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  transition: border-color var(--t-base);
}
.faculty-card:hover { border-color: var(--azul); }
.faculty-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--papel);
  color: var(--azul);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}
.faculty-avatar.affiliated { background: var(--crema-cna); color: var(--texto-cna); }
.faculty-name {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.3;
  color: var(--obsidiana);
  margin-bottom: 6px;
}
.faculty-type {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  background: var(--papel);
  color: var(--azul);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.faculty-type.affiliated { background: var(--crema-cna); color: var(--texto-cna); }
.faculty-title { font-size: 12px; line-height: 1.4; color: var(--acero); }
.faculty-email { font-size: 12px; color: var(--azul); word-break: break-all; }

/* ─── Documento PDF ─── */
.doc {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--nieve);
  border: 1px solid var(--nube);
  border-radius: var(--r-badge);
  padding: 18px 24px;
  text-decoration: none;
  transition: border-color var(--t-base);
}
.doc:hover { border-color: var(--azul); text-decoration: none; }
.doc-icon {
  width: 40px; height: 40px;
  border-radius: 8px;
  background: var(--papel);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.doc-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--obsidiana);
}
.doc-meta { font-size: 12px; color: var(--niebla); margin-top: 2px; }
.doc-action { font-size: 12px; color: var(--azul); font-weight: 500; white-space: nowrap; }

/* ─── Objetivos (2x2) ─── */
.obj-card {
  background: var(--nieve);
  border: 1px solid var(--nube);
  border-radius: var(--r-card);
  padding: 28px 28px;
}
.obj-num {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 28px;
  color: var(--azul);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1;
}
.obj-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--obsidiana);
  margin-bottom: 10px;
}
.obj-desc { font-size: 14px; line-height: 1.7; color: var(--acero); }

/* ─── Info panel ─── */
.info-panel {
  background: var(--nieve);
  border: 1px solid var(--nube);
  border-radius: var(--r-card);
  padding: 24px;
}
.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--papel);
}
.info-row:last-child { border-bottom: none; padding-bottom: 0; }
.info-row .k { font-size: 13px; color: var(--acero); }
.info-row .v {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--obsidiana);
  text-align: right;
}

/* ─── Info icon card ─── */
.info-icon {
  width: 40px; height: 40px;
  border-radius: 8px;
  background: var(--papel);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* ─── Malla (responsive apilada) ─── */
.malla { display: grid; gap: 6px; }
.malla-row { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.malla-cell {
  border-radius: 6px;
  padding: 14px 10px;
  text-align: center;
  font-family: 'Poppins', sans-serif;
  font-size: 12px;
  line-height: 1.3;
  font-weight: 600;
}
.malla-core { background: var(--azul); color: #fff; }
.malla-research { background: var(--azul-research); color: #fff; }
.malla-spec { background: var(--papel); color: var(--obsidiana); }
.malla-exam { background: var(--azul-exam); color: var(--azul); }
.malla-thesis { background: var(--grafito); color: #fff; }
.malla-empty { background: transparent; }
.malla-legend {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.malla-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--acero);
}
.malla-legend-dot { width: 12px; height: 12px; border-radius: 2px; }
.malla-head {
  text-align: center;
  color: var(--ceniza);
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 4px;
}
.malla-mobile-group {
  border: 1px solid var(--nube);
  border-radius: var(--r-badge);
  padding: 16px;
  background: var(--nieve);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.malla-mobile-group .malla-head { color: var(--azul); text-align: left; padding: 0 0 6px; }

/* ─── CTA band ─── */
.cta-band {
  background: var(--azul);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.cta-band-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 8px;
}
.cta-band p { color: rgba(255,255,255,0.75); font-size: 15px; }
.cta-band .btn-group { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-band-center { text-align: center; }
.cta-band-center .btn-group { justify-content: center; }

/* ─── Footer ─── */
.site-footer {
  background: var(--obsidiana);
  color: #fff;
  padding: 48px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  padding-bottom: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand img {
  height: 40px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  border-radius: 0;
}
.footer-brand .name {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: #fff;
  line-height: 1.2;
}
.footer-desc {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255,255,255,0.5);
  max-width: 260px;
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col h4 {
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(255,255,255,0.7); font-size: 13px; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) { .footer-cols { grid-template-columns: 1fr; } }

/* ─── Utilidades ─── */
.stack-12 { display: flex; flex-direction: column; gap: 12px; }
.stack-16 { display: flex; flex-direction: column; gap: 16px; }
.stack-20 { display: flex; flex-direction: column; gap: 20px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-48 { margin-top: 48px; }
.text-center { text-align: center; }
.max-720 { max-width: 720px; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}