/*
Theme Name:  UPN Theme
Theme URI:   https://www.upn.edu.co
Author:      Universidad Pedagógica Nacional
Author URI:  https://www.upn.edu.co
Description: Tema institucional oficial de la Universidad Pedagógica Nacional. Desarrollado a medida con soporte completo para el editor Gutenberg.
Version:     1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License:     GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: upn-theme
Tags:        full-site-editing, custom-colors, custom-logo, custom-menu, featured-images, gutenberg
*/

/* ==========================================================================
   VARIABLES CSS
   ========================================================================== */

:root {
  --upn-blue:        #004991;
  --upn-blue-dark:   #003570;
  --upn-blue-light:  #0060c0;
  --upn-white:       #ffffff;
  --upn-gray-100:    #f4f6f9;
  --upn-gray-200:    #e8ecf0;
  --upn-gray-300:    #d0d7df;
  --upn-gray-500:    #6b7280;
  --upn-gray-700:    #374151;
  --upn-gray-900:    #111827;

  --font-primary:    'Inter', 'Segoe UI', Arial, sans-serif;
  --font-heading:    'Inter', 'Segoe UI', Arial, sans-serif;

  --radius-sm:       4px;
  --radius-md:       8px;
  --radius-lg:       12px;

  --shadow-sm:       0 1px 3px rgba(0,0,0,.08);
  --shadow-md:       0 4px 12px rgba(0,0,0,.12);
  --shadow-lg:       0 8px 24px rgba(0,0,0,.16);

  --container-max:   1200px;
  --container-pad:   1.5rem;

  --transition:      all .25s ease;
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-primary);
  color: var(--upn-gray-900);
  background: var(--upn-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--upn-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--upn-blue-dark); }

ul, ol { list-style: none; }

/* ==========================================================================
   TIPOGRAFÍA
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--upn-gray-900);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: .9rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ==========================================================================
   CONTENEDOR
   ========================================================================== */

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

.container--narrow { max-width: 800px; }
.container--wide   { max-width: 1400px; }

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
  background: var(--upn-white);
  border-bottom: 3px solid var(--upn-blue);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-top {
  background: var(--upn-blue);
  padding: .4rem 0;
}

.header-top__inner {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1.5rem;
}

.header-top__link {
  color: rgba(255,255,255,.85);
  font-size: .8rem;
  font-weight: 500;
  transition: var(--transition);
}

.header-top__link:hover { color: var(--upn-white); }

.header-main {
  padding: 1rem 0;
}

.header-main__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
}

.site-logo img {
  height: 56px;
  width: auto;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-logo__name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--upn-blue);
  text-transform: uppercase;
  letter-spacing: .03em;
}

.site-logo__tagline {
  font-size: .72rem;
  color: var(--upn-gray-500);
  font-weight: 400;
}

/* ==========================================================================
   NAVEGACIÓN PRINCIPAL
   ========================================================================== */

.main-nav { display: flex; align-items: center; }

.main-nav__list {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.main-nav__item { position: relative; }

.main-nav__link {
  display: block;
  padding: .6rem .9rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--upn-gray-700);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav__link:hover,
.main-nav__item.current-menu-item > .main-nav__link {
  color: var(--upn-blue);
  background: var(--upn-gray-100);
}

/* Submenú */
.main-nav__sub {
  position: absolute;
  top: calc(100% + .5rem);
  left: 0;
  min-width: 220px;
  background: var(--upn-white);
  border: 1px solid var(--upn-gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: .5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 500;
}

.main-nav__item:hover > .main-nav__sub,
.main-nav__item:focus-within > .main-nav__sub {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav__sub-link {
  display: block;
  padding: .55rem 1.25rem;
  font-size: .875rem;
  color: var(--upn-gray-700);
  transition: var(--transition);
}

.main-nav__sub-link:hover {
  color: var(--upn-blue);
  background: var(--upn-gray-100);
}

/* Botón búsqueda */
.nav-search-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
  color: var(--upn-gray-700);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  margin-left: .5rem;
}

.nav-search-btn:hover { color: var(--upn-blue); background: var(--upn-gray-100); }
.nav-search-btn svg  { width: 20px; height: 20px; display: block; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--upn-gray-700);
  border-radius: 2px;
  transition: var(--transition);
}

/* ==========================================================================
   HERO / BANNER
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, var(--upn-blue) 0%, var(--upn-blue-dark) 100%);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('assets/images/hero-pattern.svg') center/cover no-repeat;
  opacity: .05;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__content { color: var(--upn-white); }

.hero__eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.7);
  margin-bottom: .75rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--upn-white);
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero__description {
  font-size: 1.1rem;
  color: rgba(255,255,255,.85);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero__image img { width: 100%; height: 380px; object-fit: cover; }

/* ==========================================================================
   BOTONES
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  font-size: .9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--upn-white);
  color: var(--upn-blue);
  border-color: var(--upn-white);
}

.btn--primary:hover {
  background: var(--upn-gray-100);
  color: var(--upn-blue-dark);
  border-color: var(--upn-gray-100);
}

.btn--outline {
  background: transparent;
  color: var(--upn-white);
  border-color: rgba(255,255,255,.6);
}

.btn--outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--upn-white);
  color: var(--upn-white);
}

.btn--blue {
  background: var(--upn-blue);
  color: var(--upn-white);
  border-color: var(--upn-blue);
}

.btn--blue:hover {
  background: var(--upn-blue-dark);
  border-color: var(--upn-blue-dark);
  color: var(--upn-white);
}

.btn--sm { padding: .5rem 1rem; font-size: .8rem; }

/* ==========================================================================
   SECCIONES GENERALES
   ========================================================================== */

.section { padding: 4rem 0; }
.section--gray { background: var(--upn-gray-100); }
.section--blue { background: var(--upn-blue); color: var(--upn-white); }

.section__header { text-align: center; margin-bottom: 3rem; }

.section__eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--upn-blue);
  margin-bottom: .5rem;
}

.section--blue .section__eyebrow { color: rgba(255,255,255,.7); }

.section__title { margin-bottom: .75rem; }

.section--blue .section__title { color: var(--upn-white); }

.section__subtitle {
  font-size: 1rem;
  color: var(--upn-gray-500);
  max-width: 560px;
  margin: 0 auto;
}

.section--blue .section__subtitle { color: rgba(255,255,255,.75); }

/* ==========================================================================
   CARDS DE NOTICIAS
   ========================================================================== */

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.news-card {
  background: var(--upn-white);
  border: 1px solid var(--upn-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--upn-gray-300);
}

.news-card__image {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.news-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.news-card:hover .news-card__image img { transform: scale(1.04); }

.news-card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }

.news-card__cat {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--upn-blue);
  background: rgba(0,73,145,.08);
  padding: .25rem .6rem;
  border-radius: 100px;
  margin-bottom: .75rem;
}

.news-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--upn-gray-900);
  line-height: 1.4;
  margin-bottom: .5rem;
  flex: 1;
}

.news-card__title a { color: inherit; }
.news-card__title a:hover { color: var(--upn-blue); }

.news-card__excerpt {
  font-size: .875rem;
  color: var(--upn-gray-500);
  line-height: 1.6;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .78rem;
  color: var(--upn-gray-500);
  border-top: 1px solid var(--upn-gray-200);
  padding-top: .75rem;
  margin-top: auto;
}

.news-card__date { font-weight: 500; }

.news-card__read-more {
  font-weight: 600;
  color: var(--upn-blue);
  font-size: .8rem;
}

/* ==========================================================================
   CARD NOTICIA DESTACADA
   ========================================================================== */

.news-featured {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.news-card--featured .news-card__image { aspect-ratio: 16/7; }

.news-card--featured .news-card__title {
  font-size: 1.25rem;
}

/* ==========================================================================
   CIFRAS INSTITUCIONALES
   ========================================================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-item { text-align: center; }

.stat-item__number {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--upn-blue);
  line-height: 1;
  display: block;
}

.section--blue .stat-item__number { color: var(--upn-white); }

.stat-item__label {
  font-size: .875rem;
  color: var(--upn-gray-500);
  margin-top: .4rem;
}

.section--blue .stat-item__label { color: rgba(255,255,255,.75); }

/* ==========================================================================
   OFERTA ACADÉMICA
   ========================================================================== */

.programs-tabs { margin-bottom: 2rem; display: flex; gap: .5rem; flex-wrap: wrap; }

.programs-tab {
  padding: .55rem 1.2rem;
  font-size: .875rem;
  font-weight: 600;
  border: 2px solid var(--upn-gray-300);
  border-radius: 100px;
  background: none;
  cursor: pointer;
  transition: var(--transition);
  color: var(--upn-gray-700);
}

.programs-tab.is-active,
.programs-tab:hover {
  background: var(--upn-blue);
  border-color: var(--upn-blue);
  color: var(--upn-white);
}

.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.program-card {
  padding: 1.5rem;
  background: var(--upn-white);
  border: 1px solid var(--upn-gray-200);
  border-radius: var(--radius-md);
  transition: var(--transition);
  border-left: 4px solid var(--upn-blue);
}

.program-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.program-card__level {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--upn-blue);
  margin-bottom: .5rem;
}

.program-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--upn-gray-900);
  margin-bottom: .25rem;
}

.program-card__faculty {
  font-size: .8rem;
  color: var(--upn-gray-500);
}

/* ==========================================================================
   SINGLE POST / PÁGINAS CON GUTENBERG
   ========================================================================== */

.entry-content { max-width: 760px; margin: 0 auto; }

.entry-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--upn-gray-200); }

.entry-header__cat {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--upn-blue);
  background: rgba(0,73,145,.08);
  padding: .25rem .6rem;
  border-radius: 100px;
  margin-bottom: .75rem;
}

.entry-header__title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: .75rem;
}

.entry-header__meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: .85rem;
  color: var(--upn-gray-500);
  flex-wrap: wrap;
}

.entry-header__meta a { color: var(--upn-blue); }

.entry-thumbnail {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 2rem;
}

.entry-thumbnail img { width: 100%; max-height: 480px; object-fit: cover; }

/* Estilos para bloques Gutenberg dentro del contenido */
.entry-content p,
.entry-content ul,
.entry-content ol,
.entry-content blockquote,
.entry-content pre,
.entry-content table { margin-bottom: 1.5rem; }

.entry-content ul { list-style: disc; padding-left: 1.5rem; }
.entry-content ol { list-style: decimal; padding-left: 1.5rem; }
.entry-content li { margin-bottom: .4rem; }

.entry-content blockquote {
  border-left: 4px solid var(--upn-blue);
  padding: 1rem 1.5rem;
  background: var(--upn-gray-100);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--upn-gray-700);
}

.entry-content h2 { margin-top: 2.5rem; margin-bottom: .75rem; }
.entry-content h3 { margin-top: 2rem; margin-bottom: .5rem; }

.entry-content a { text-decoration: underline; }
.entry-content a:hover { color: var(--upn-blue-dark); }

.entry-content .wp-block-image { margin-bottom: 1.5rem; }
.entry-content .wp-block-image img { border-radius: var(--radius-sm); }
.entry-content .wp-block-image figcaption {
  font-size: .8rem;
  color: var(--upn-gray-500);
  text-align: center;
  margin-top: .4rem;
}

.entry-content .wp-block-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.entry-content .wp-block-table th,
.entry-content .wp-block-table td {
  padding: .75rem 1rem;
  border: 1px solid var(--upn-gray-300);
  text-align: left;
}

.entry-content .wp-block-table th {
  background: var(--upn-blue);
  color: var(--upn-white);
  font-weight: 600;
}

.entry-content .wp-block-table tr:nth-child(even) td {
  background: var(--upn-gray-100);
}

/* ==========================================================================
   PAGINACIÓN
   ========================================================================== */

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .4rem;
  margin-top: 3rem;
}

.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 600;
  color: var(--upn-gray-700);
  border: 1px solid var(--upn-gray-300);
  transition: var(--transition);
}

.page-numbers:hover { background: var(--upn-gray-100); color: var(--upn-blue); }
.page-numbers.current { background: var(--upn-blue); color: var(--upn-white); border-color: var(--upn-blue); }
.page-numbers.dots { border: none; }

/* ==========================================================================
   SIDEBAR
   ========================================================================== */

.page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2.5rem;
  align-items: start;
}

.widget {
  background: var(--upn-white);
  border: 1px solid var(--upn-gray-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.widget__title {
  font-size: .9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--upn-blue);
  margin-bottom: 1rem;
  padding-bottom: .6rem;
  border-bottom: 2px solid var(--upn-blue);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  background: var(--upn-gray-900);
  color: rgba(255,255,255,.75);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand__logo { margin-bottom: 1rem; }
.footer-brand__logo img { height: 48px; filter: brightness(0) invert(1); }

.footer-brand__desc {
  font-size: .875rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  color: rgba(255,255,255,.6);
}

.footer-socials { display: flex; gap: .6rem; }

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.75);
  transition: var(--transition);
}

.footer-social-link:hover {
  background: var(--upn-blue);
  color: var(--upn-white);
}

.footer-social-link svg { width: 18px; height: 18px; }

.footer-col__title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--upn-white);
  margin-bottom: 1rem;
}

.footer-col__list { display: flex; flex-direction: column; gap: .4rem; }

.footer-col__link {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}

.footer-col__link:hover { color: var(--upn-white); padding-left: .3rem; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .8rem;
  color: rgba(255,255,255,.4);
  flex-wrap: wrap;
  gap: .75rem;
}

.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--upn-white); }

/* ==========================================================================
   BREADCRUMBS
   ========================================================================== */

.breadcrumbs {
  padding: .75rem 0;
  background: var(--upn-gray-100);
  border-bottom: 1px solid var(--upn-gray-200);
  font-size: .8rem;
  color: var(--upn-gray-500);
}

.breadcrumbs__list { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }

.breadcrumbs__sep { color: var(--upn-gray-300); }

.breadcrumbs__link { color: var(--upn-blue); }
.breadcrumbs__link:hover { color: var(--upn-blue-dark); }

.breadcrumbs__current { font-weight: 600; color: var(--upn-gray-700); }

/* ==========================================================================
   QUICK LINKS (accesos rápidos - Home)
   ========================================================================== */

.quick-links__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}

.quick-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  padding: 1.25rem 1rem;
  background: var(--upn-white);
  border: 1px solid var(--upn-gray-200);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  color: var(--upn-gray-700);
  text-decoration: none;
}

.quick-link:hover {
  background: var(--upn-blue);
  border-color: var(--upn-blue);
  color: var(--upn-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.quick-link__icon svg {
  width: 28px;
  height: 28px;
  display: block;
}

.quick-link__label {
  font-size: .78rem;
  font-weight: 600;
  line-height: 1.3;
}

/* Columna de noticias secundarias */
.news-secondary {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.news-secondary .news-card .news-card__image {
  aspect-ratio: 16/8;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
  .footer-grid          { grid-template-columns: 1fr 1fr; }
  .stats-grid           { grid-template-columns: repeat(2, 1fr); }
  .news-featured        { grid-template-columns: 1fr; }
  .hero__inner          { grid-template-columns: 1fr; }
  .hero__image          { display: none; }
  .quick-links__grid    { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .page-layout { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--upn-white);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 1.5rem 2rem;
    transition: right .3s ease;
    z-index: 999;
    overflow-y: auto;
  }

  .main-nav.is-open { right: 0; }

  .main-nav__list { flex-direction: column; width: 100%; gap: 0; }

  .main-nav__link { padding: .75rem .5rem; width: 100%; border-radius: 0; border-bottom: 1px solid var(--upn-gray-100); }

  .main-nav__sub {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--upn-gray-100);
    border-radius: var(--radius-sm);
    padding: .25rem 0;
    margin: .25rem 0;
  }

  .footer-grid { grid-template-columns: 1fr; }

  .hero { padding: 3rem 0; }
}

@media (max-width: 480px) {
  :root { --container-pad: 1rem; }
  .stats-grid        { grid-template-columns: 1fr 1fr; }
  .footer-bottom     { flex-direction: column; text-align: center; }
  .quick-links__grid { grid-template-columns: repeat(2, 1fr); }
}