:root {
  --ink: #111111;
  --panel: #ffffff;
  --muted: #5f6670;
  --line: #d9dde2;
  --soft: #f3f4f6;
  --silver: #c8cdd2;
  --gold: #b08a35;
  --danger: #9d1c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: #f7f7f7;
  line-height: 1.6;
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 34px;
  background: rgba(14, 14, 14, 0.94);
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  text-decoration: none;
}

.mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.9rem;
}

.brand-logo-box {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 64px;
  height: 60px;
  overflow: visible;
}

.brand-logo {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.topbar nav,
.adminbar nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar nav a,
.adminbar nav a {
  color: #ffffff;
  text-decoration: none;
  font-size: 0.94rem;
}

.campus-link {
  padding: 9px 12px;
  border: 1px solid var(--gold);
  color: #ffffff;
  background: rgba(176, 138, 53, 0.22);
}

.hero {
  min-height: 74vh;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  align-items: center;
  gap: 48px;
  padding: 72px 7vw;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(0, 0, 0, 0.96), rgba(44, 46, 49, 0.88), rgba(219, 222, 225, 0.72)),
    var(--hero-image, url('/assets/institucional.svg')) center/contain no-repeat;
  background-color: #111111;
}

.hero h1 {
  max-width: 920px;
  margin: 10px 0 20px;
  font-size: clamp(2.4rem, 5vw, 5.1rem);
  line-height: 1.02;
}

.hero p {
  max-width: 760px;
  margin: 0 0 28px;
  font-size: 1.16rem;
  color: #f0f0f0;
}

.hero-panel {
  min-height: 330px;
  display: grid;
  align-content: end;
  gap: 12px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(0,0,0,0.46));
}

.hero-carousel {
  position: relative;
  width: 100%;
  min-height: 330px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: #111111;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  color: #ffffff;
  text-decoration: none;
  pointer-events: none;
  transition: opacity 700ms ease;
  z-index: 0;
}

.hero-slide.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #111111;
}

.slide-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.06), rgba(0,0,0,0.72));
}

.slide-copy {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  display: grid;
  gap: 6px;
}

.slide-copy strong {
  font-size: 1.35rem;
  line-height: 1.15;
}

.slide-copy small {
  font-size: 0.95rem;
  color: #eeeeee;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 38px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.42);
  font-size: 2.2rem;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
}

.carousel-arrow:hover,
.carousel-arrow:focus-visible {
  background: rgba(0, 0, 0, 0.68);
}

.carousel-arrow.prev {
  left: 12px;
}

.carousel-arrow.next {
  right: 12px;
}

.carousel-dots {
  position: absolute;
  left: 50%;
  bottom: 12px;
  z-index: 3;
  display: flex;
  gap: 8px;
  transform: translateX(-50%);
}

.carousel-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.32);
  cursor: pointer;
}

.carousel-dot.active {
  background: var(--gold);
  border-color: var(--gold);
}

.hero-panel strong {
  font-size: 4rem;
  color: var(--gold);
}

.hero-panel span {
  max-width: 320px;
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--gold);
  color: #111111;
}

.button.secondary {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.55);
}

.button.secondary.dark {
  color: #111111;
  border-color: #9da3aa;
  background: #ffffff;
}

.button.danger {
  color: #ffffff;
  background: var(--danger);
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 22px 7vw;
  background: #f1f2f3;
  border-bottom: 1px solid var(--line);
}

.quick-grid a {
  min-height: 150px;
  padding: 26px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.quick-grid a::after {
  content: "Ver publicaciones";
  display: inline-block;
  margin-top: 18px;
  padding: 8px 12px;
  border: 1px solid var(--gold);
  border-radius: 8px;
  color: #111111;
  font-size: 0.86rem;
  font-weight: 800;
  background: rgba(176, 138, 53, 0.14);
}

.quick-grid a:hover,
.quick-grid a:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.quick-grid strong,
.quick-grid span {
  display: block;
}

.quick-grid strong {
  margin-bottom: 10px;
  font-size: 1.16rem;
}

.quick-grid span,
.institutional p,
.post-card p,
.footer p {
  color: var(--muted);
}

.institutional {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  padding: 72px 7vw;
  background: #ffffff;
}

.section-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  margin-bottom: 22px;
  border: 1px solid var(--line);
}

.institutional h2,
.section-heading h2,
.article h1,
.admin-main h1 {
  margin: 8px 0 14px;
  line-height: 1.12;
}

.content-section {
  padding: 72px 7vw;
  scroll-margin-top: 92px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.post-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.post-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #dfe3e7;
}

.post-card div {
  padding: 20px;
}

.post-card h3 {
  margin: 8px 0 10px;
  line-height: 1.2;
}

.post-card h3 a {
  text-decoration: none;
}

.social-video-section {
  background: #111111;
  color: #ffffff;
}

.social-video-section .section-heading p {
  color: #d5d8dc;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.video-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: #1d1f22;
}

.video-card video,
.slide-admin-card video {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 620px;
  object-fit: cover;
  background: #000000;
}

.video-card div {
  padding: 18px;
}

.video-card h3 {
  margin: 0 0 8px;
  line-height: 1.2;
}

.video-card p {
  color: #d5d8dc;
}

.social-link {
  display: inline-flex;
  margin-top: 8px;
  color: var(--gold);
  font-weight: 800;
}

.article-page {
  padding: 70px 7vw;
}

.article {
  max-width: 880px;
  margin: 0 auto;
  padding: 44px;
  background: #ffffff;
  border: 1px solid var(--line);
}

.article .lead {
  color: var(--muted);
  font-size: 1.18rem;
}

.article-image {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  background: #111111;
  margin: 24px auto;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 34px 7vw;
  color: #ffffff;
  background: #111111;
}

.footer a {
  display: block;
  color: #ffffff;
  margin-top: 6px;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background: linear-gradient(135deg, #050505, #4b4d50, #d4d7da);
}

.login-card,
.editor {
  width: min(100%, 760px);
  padding: 30px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.login-card label,
.editor label {
  display: grid;
  gap: 7px;
  margin-bottom: 16px;
  font-weight: 700;
}

input,
textarea,
select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid #bfc5cc;
  border-radius: 6px;
  font: inherit;
}

.error {
  padding: 10px 12px;
  color: #ffffff;
  background: var(--danger);
}

.success {
  padding: 10px 12px;
  color: #0f3320;
  background: #dff3e8;
  border: 1px solid #9ed5b7;
}

.helper {
  color: var(--muted);
}

.adminbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 7vw;
  color: #ffffff;
  background: #111111;
}

.admin-main {
  padding: 42px 7vw;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
}

.admin-table th,
.admin-table td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
}

.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.thumb {
  width: 220px;
  max-width: 100%;
  margin: 0 0 16px;
  border: 1px solid var(--line);
}

.wide-editor {
  width: min(100%, 1120px);
}

.admin-section {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid var(--line);
  background: #fafafa;
}

.image-editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.slide-admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.slide-admin-card {
  display: grid;
  gap: 10px;
  padding: 14px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.slide-admin-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #111111;
  border: 1px solid var(--line);
}

.add-slide {
  display: grid;
  gap: 12px;
}

.checkline {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 400;
}

.checkline input {
  width: auto;
}

.editor-toolbar {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 30;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.72);
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease, background 180ms ease;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: #111111;
}

@media (max-width: 980px) {
  .topbar,
  .footer,
  .adminbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .institutional,
  .posts-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .topbar,
  .hero,
  .institutional,
  .content-section,
  .article-page,
  .footer,
  .adminbar,
  .admin-main {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
    padding-bottom: 54px;
  }

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

  .image-editor-grid {
    grid-template-columns: 1fr;
  }

  .slide-admin-grid {
    grid-template-columns: 1fr;
  }

  .article {
    padding: 24px;
  }
}