/* ============================================================
   Unidad de Registros Académicos — UNAC
   Paleta: azul oscuro institucional, blanco, acento amarillo
   ============================================================ */

:root{
  --azul-950: #081a33;
  --azul-900: #0b2545;
  --azul-800: #123568;
  --azul-700: #1c3d6e;
  --azul-100: #dbe2ea;
  --azul-50:  #f3f6fa;
  --blanco:   #ffffff;
  --amarillo: #f0b429;
  --amarillo-suave: #fdf1d3;
  --texto: #182635;
  --texto-suave: #4c5a6b;
  --borde: #e2e8f0;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;

  --container: 1180px;
  --radius: 10px;
  --shadow-card: 0 1px 2px rgba(11,37,69,0.06), 0 8px 24px -12px rgba(11,37,69,0.18);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--texto);
  background: var(--blanco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg{ display: block; max-width: 100%; }
a{ color: inherit; }
h1, h2, h3{ font-family: var(--font-display); color: var(--azul-900); line-height: 1.15; margin: 0; }
p{ margin: 0; }
ul{ margin: 0; padding: 0; list-style: none; }

.container{
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--amarillo);
  color: var(--azul-950);
  padding: 12px 20px;
  font-weight: 600;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus{ left: 0; }

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

/* ---------------- Header ---------------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--blanco);
  border-bottom: 1px solid var(--borde);
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}
.brand{ display: flex; align-items: center; gap: 14px; }
.brand-link{
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.brand-link:hover,
.brand-link:focus-visible{
  transform: translateY(-1px);
  opacity: 0.95;
  text-decoration: none;
}
.brand-mark{
  width: 44px; height: 44px;
  border-radius: 8px;
  background: var(--azul-900);
  color: var(--amarillo);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  flex-shrink: 0;
}
.brand-mark-image{
  object-fit: contain;
  padding: 4px;
  background: var(--blanco);
}
.brand-text{ display: flex; flex-direction: column; line-height: 1.25; }
.brand-university{ font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--texto-suave); }
.brand-unit{ font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; color: var(--azul-900); }

.primary-nav{ display: flex; gap: 8px; }
.primary-nav a{
  text-decoration: none;
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--texto);
  padding: 10px 14px;
  border-radius: 6px;
  position: relative;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.primary-nav a:hover{ color: var(--azul-900); background: var(--azul-50); }
.primary-nav a::after{
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 6px;
  height: 2px;
  background: var(--amarillo);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.primary-nav a:hover::after{ transform: scaleX(1); }

.nav-toggle{
  display: none;
  width: 42px; height: 42px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span{
  width: 22px; height: 2px;
  background: var(--azul-900);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero{
  position: relative;
  isolation: isolate;
  background: linear-gradient(180deg, var(--azul-950) 0%, var(--azul-900) 55%, var(--azul-800) 100%);
  color: var(--blanco);
  padding: 96px 0 88px;
  overflow: hidden;
}
.hero::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 26, 51, 0) 0%, rgba(8, 26, 51, 0.18) 40%, rgba(8, 26, 51, 0.92) 100%),
    url("../img/banner_ura.png") right center / cover no-repeat;
  opacity: 0.98;
  pointer-events: none;
  z-index: 0;
  mask-image: linear-gradient(90deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.15) 45%, rgba(0,0,0,0.65) 70%, rgba(0,0,0,1) 100%);
  -webkit-mask-image: linear-gradient(90deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.15) 45%, rgba(0,0,0,0.65) 70%, rgba(0,0,0,1) 100%);
}
.hero-inner{
  position: relative;
  z-index: 1;
  max-width: 760px;
  opacity: 0;
  transform: translateY(14px);
  animation: heroReveal 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.1s forwards;
}
@keyframes heroReveal{
  to{ opacity: 1; transform: translateY(0); }
}
.hero-eyebrow{
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amarillo);
  font-weight: 600;
  margin-bottom: 18px;
}
.hero h1{
  color: var(--blanco);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 600;
  margin-bottom: 22px;
}
.hero-lede{
  color: var(--azul-100);
  font-size: 1.08rem;
  max-width: 640px;
  margin-bottom: 34px;
}
.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; }

.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  border: 2px solid transparent;
}
.btn-primary{ background: var(--amarillo); color: var(--azul-950); }
.btn-primary:hover{ background: #f7c94d; transform: translateY(-2px); box-shadow: 0 10px 24px -8px rgba(240,180,41,0.55); }
.btn-ghost{ border-color: rgba(255,255,255,0.4); color: var(--blanco); }
.btn-ghost:hover{ border-color: var(--amarillo); color: var(--amarillo); transform: translateY(-2px); }

.hero-grid-line{
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, transparent, rgba(0,0,0,0.7) 40%, transparent 90%);
  pointer-events: none;
}

/* ---------------- Section shared ---------------- */
.reveal-section{
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}
.reveal-section.is-visible{
  opacity: 1;
  transform: translateY(0);
}

.section-head{ max-width: 640px; margin-bottom: 44px; }
.section-kicker{
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--azul-800);
  background: var(--azul-50);
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 12px; }
.section-head p{ color: var(--texto-suave); font-size: 1.02rem; }

/* ---------------- Comunicados ---------------- */
.comunicados{ padding: 88px 0; background: var(--blanco); }
.comunicados-grid{
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 420px);
  gap: 28px;
  align-items: stretch;
}
.comunicado-list{ display: flex; flex-direction: column; border-top: 1px solid var(--borde); }
.comunicado-item{ border-bottom: 1px solid var(--borde); }
.comunicado-link{
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  padding: 26px 18px;
  text-decoration: none;
  color: inherit;
  border-radius: 8px;
  transition: background-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.comunicado-link:hover,
.comunicado-link.is-active{ background: var(--azul-50); box-shadow: 0 10px 28px rgba(11,37,69,0.08); transform: translateY(-1px); }
.comunicado-icon{
  width: 44px; height: 44px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.comunicado-icon::after{
  content: "";
  position: absolute; inset: 14px;
  border-radius: 3px;
}
.icon-tramite{ background: var(--amarillo-suave); }
.icon-tramite::after{ background: var(--amarillo); }
.icon-matricula{ background: #dbe9ff; }
.icon-matricula::after{ background: var(--azul-700); border-radius: 50%; }
.icon-grados{ background: #e4f4e9; }
.icon-grados::after{ background: #2f8a52; transform: rotate(45deg); }
.icon-calificaciones{ background: #fbe4e4; }
.icon-calificaciones::after{ background: #c04848; border-radius: 50%; inset: 15px; }

.comunicado-meta{ display: flex; align-items: center; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.comunicado-meta time{ font-size: 0.85rem; color: var(--texto-suave); }
.tag{
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
}
.tag-tramite{ background: var(--amarillo-suave); color: #7a5300; }
.tag-matricula{ background: #dbe9ff; color: var(--azul-800); }
.tag-grados{ background: #e4f4e9; color: #1f6b3c; }
.tag-calificaciones{ background: #fbe4e4; color: #9c2b2b; }

.comunicado-title{
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  color: var(--azul-900);
  margin-bottom: 6px;
}
.comunicado-desc{ display: block; color: var(--texto-suave); font-size: 0.96rem; }

.comunicado-preview{
  position: sticky;
  top: 120px;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 20px;
  height: 100%;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.comunicado-preview.is-updating{
  opacity: 0.75;
  transform: translateY(-4px);
}
.comunicado-preview figure{
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  background: var(--azul-50);
  min-height: 220px;
}
.comunicado-preview img{
  width: 100%;
  display: block;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.25s ease;
}
.preview-body{ display: grid; gap: 10px; }
.preview-body .section-kicker{ margin-bottom: 0; }
.preview-title{
  font-family: var(--font-display);
  font-size: 1.28rem;
  color: var(--azul-900);
  display: block;
}
.preview-copy{
  color: var(--texto-suave);
  line-height: 1.7;
}

@media (max-width: 950px) {
  .comunicados-grid{ grid-template-columns: 1fr; }
  .comunicado-preview{ position: static; top: auto; }
}

@media (max-width: 640px) {
  .comunicado-link{ grid-template-columns: 36px 1fr; gap: 16px; padding: 20px 14px; }
}

/* ---------------- Acerca de nosotros ---------------- */
.nosotros{ padding: 88px 0; background: var(--azul-50); }
.nosotros-grid{
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  align-items: center;
}
.nosotros-intro{ color: var(--texto-suave); font-size: 1.05rem; margin: 18px 0 40px; max-width: 620px; }
.nosotros-cols{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.nosotros-block h3{
  font-size: 1.1rem;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--amarillo);
  display: inline-block;
}
.nosotros-block p{ color: var(--texto-suave); font-size: 0.95rem; }
.valores-list li{
  color: var(--texto-suave);
  font-size: 0.95rem;
  padding-left: 18px;
  position: relative;
  margin-bottom: 10px;
}
.valores-list li::before{
  content: "";
  position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px;
  background: var(--amarillo);
  border-radius: 1px;
}
.nosotros-visual{
  background: var(--blanco);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

/* ---------------- Atenciones ---------------- */
.atenciones{ padding: 88px 0; background: var(--blanco); }
.atenciones-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.atencion-card{
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--borde);
  border-radius: var(--radius);
  padding: 30px 26px;
  background: var(--blanco);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
}
.atencion-card::before{
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--amarillo);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}
.atencion-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: transparent;
}
.atencion-card:hover::before{ transform: scaleY(1); }
.atencion-icon{
  width: 48px; height: 48px;
  color: var(--azul-800);
  margin-bottom: 18px;
}
.atencion-card h3{ font-size: 1.2rem; margin-bottom: 8px; }
.atencion-summary{ color: var(--texto-suave); font-size: 0.92rem; margin-bottom: 4px; }
.atencion-detail{
  color: var(--texto-suave);
  font-size: 0.9rem;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.3s ease, margin 0.35s ease;
}
.atencion-card:hover .atencion-detail,
.atencion-card:focus-within .atencion-detail{
  max-height: 140px;
  opacity: 1;
  margin-top: 10px;
}
.atencion-link{
  display: inline-flex;
  align-self: flex-start;
  margin-top: 14px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--azul-800);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.atencion-link:hover{ border-color: var(--amarillo); color: var(--azul-900); }

/* ---------------- Jefatura ---------------- */
.jefatura{ padding: 88px 0; background: var(--azul-50); }
.jefatura-grid{
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 56px;
  align-items: start;
}
.jefatura-photo{
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.jefatura-role{
  color: var(--amarillo);
  background: var(--azul-900);
  display: inline-block;
  padding: 5px 14px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
  margin: 14px 0 20px;
}
.jefatura-copy h2{ font-size: clamp(1.5rem, 2.6vw, 2rem); }
.jefatura-desc{ color: var(--texto-suave); font-size: 1rem; margin-bottom: 30px; max-width: 640px; }
.jefatura-copy h3{ font-size: 1.05rem; margin-bottom: 16px; }
.jefatura-list li{
  color: var(--texto-suave);
  font-size: 0.96rem;
  padding-left: 22px;
  position: relative;
  margin-bottom: 12px;
  max-width: 640px;
}
.jefatura-list li::before{
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px;
  background: var(--amarillo);
  border-radius: 50%;
}

/* ---------------- Footer ---------------- */
.site-footer{ background: var(--azul-950); color: var(--azul-100); padding: 72px 0 32px; }
.footer-grid{
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-col h4{
  color: var(--blanco);
  font-family: var(--font-display);
  font-size: 1rem;
  margin-bottom: 18px;
}
.footer-col ul li{ margin-bottom: 12px; font-size: 0.92rem; }
.footer-col a{
  text-decoration: none;
  color: var(--azul-100);
  transition: color 0.2s ease;
}
.footer-col a:hover{ color: var(--amarillo); }
.footer-brand p{ font-size: 0.9rem; color: var(--azul-100); margin-top: 16px; }
.footer-logo{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 2px solid var(--azul-950);
  border-radius: 8px;
  padding: 8px 14px;
}
.footer-logo-num{ font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: var(--amarillo); line-height: 1; }
.footer-logo-text{ font-size: 0.68rem; letter-spacing: 0.06em; color: var(--blanco); line-height: 1.2; }
.mesa-partes-link{ display: inline-flex; align-items: center; gap: 8px; }
.mesa-partes-icon{
  width: 22px; height: 22px;
  border: 1.5px solid var(--amarillo);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--amarillo);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.footer-bottom{ padding-top: 28px; display: flex; flex-direction: column; gap: 10px; }
.footer-bottom p{ font-size: 0.82rem; color: rgba(219,226,234,0.75); }
.footer-legal{ max-width: 760px; }

/* ---------------- Responsive ---------------- */
@media (max-width: 960px){
  .nosotros-grid{ grid-template-columns: 1fr; }
  .nosotros-visual{ max-width: 320px; margin-inline: auto; order: 1; margin-top: 28px; }
  .atenciones-grid{ grid-template-columns: repeat(2, 1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 780px){
  .nav-toggle{ display: flex; }
  .primary-nav{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--blanco);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 20px;
    border-bottom: 1px solid var(--borde);
    box-shadow: 0 12px 24px -16px rgba(11,37,69,0.25);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.22s ease, opacity 0.22s ease;
  }
  .primary-nav.is-open{
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }
  .primary-nav a{ padding: 14px 10px; }
}

@media (max-width: 640px){
  .hero{ padding: 72px 0 64px; }
  .comunicados, .nosotros, .atenciones, .jefatura{ padding: 60px 0; }
  .atenciones-grid{ grid-template-columns: 1fr; }
  .nosotros-cols{ grid-template-columns: 1fr; gap: 26px; }
  .jefatura-grid{ grid-template-columns: 1fr; gap: 28px; }
  .jefatura-photo{ max-width: 220px; margin-inline: auto; }
  .jefatura-photo img{ width: 100%; height: auto; display: block; }
  .footer-grid{ grid-template-columns: 1fr; gap: 32px; }
  .footer-logo{ max-width: 140px; margin-inline: auto; }
  .footer-logo img{ width: 100%; height: auto; display: block; }
  .comunicado-link{ grid-template-columns: 36px 1fr; gap: 14px; padding: 20px 12px; }
  .comunicado-icon{ width: 36px; height: 36px; }
  .nosotros-visual{ order: 1; margin-top: 28px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .hero-inner{ animation: none; opacity: 1; transform: none; }
  .reveal-section{ opacity: 1; transform: none; transition: none; }
  *{ transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}