:root {
  --azul: #103a8c;
  --morado: #7c3aed;
  --amarillo: #fbbf24;
  --oscuro: #07111f;
  --ancho-pagina: calc(100% - 4cm);
  --catalog-green: #00a623;
  --catalog-teal: #13a89e;
  --catalog-blue: #103a8c;
  --catalog-sky: #1fb6ff;
  --catalog-gold: #fbbf24;
  --catalog-rose: #e85b8a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: #172033;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(180deg, rgba(247, 249, 255, .96) 0%, rgba(238, 245, 255, .98) 100%),
    url("../imagenes/fondo-banner-optimizado.jpg") center top / cover no-repeat fixed;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.topbar {
  position: sticky;
  top: 14px;
  z-index: 100;
  width: var(--ancho-pagina);
  margin: 14px auto 0;
  padding: 9px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid rgba(16, 58, 140, .12);
  border-bottom: 4px solid #1fb6ff;
  border-radius: 20px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 12px 34px rgba(16, 58, 140, .13);
  backdrop-filter: blur(14px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--azul);
  font-size: 22px;
  font-weight: 900;
  white-space: nowrap;
}

.logo-mark {
  width: 118px;
  height: 52px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  position: relative;
  flex: 0 0 48px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--azul), var(--morado));
  cursor: pointer;
}

.menu-toggle span {
  position: absolute;
  left: 13px;
  width: 22px;
  height: 3px;
  border-radius: 99px;
  background: #fff;
  transition: .3s;
}

.menu-toggle span:nth-child(1) { top: 14px; }
.menu-toggle span:nth-child(2) { top: 22px; }
.menu-toggle span:nth-child(3) { top: 30px; }
.menu-toggle.active span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

.topbar nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  padding: 4px;
  border-radius: 16px;
  background: #eef5fb;
}

.topbar nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 15px 11px;
  border-radius: 10px;
  color: #18345f;
  font-size: 14px;
  font-weight: 900;
  text-align: center;
  transition: transform .25s, background .25s, box-shadow .25s, color .25s;
}

.topbar nav a:hover,
.topbar nav a:focus-visible {
  color: #07265d;
  background: #fff;
  box-shadow: 0 5px 14px rgba(16, 58, 140, .12);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--azul);
  background: #eaf1ff;
  font-size: 13px;
  font-weight: 900;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 18px;
  border: 0;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--azul), var(--morado));
  box-shadow: 0 14px 28px rgba(16, 58, 140, .22);
  font-weight: 900;
  cursor: pointer;
  transition: transform .25s, box-shadow .25s;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
}

.btn.secondary {
  color: var(--azul);
  background: #fff;
  box-shadow: 0 12px 24px rgba(16, 58, 140, .10);
}

.section-title {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 20px;
  align-items: end;
  margin-bottom: 22px;
}

.section-title h2 {
  margin: 0;
  color: var(--oscuro);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: 0;
}

.section-title p {
  margin: 0;
  color: #53627c;
  font-size: 16px;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 150;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, var(--azul), var(--morado));
  box-shadow: 0 12px 28px rgba(7, 17, 31, .28);
  transition: transform .25s, box-shadow .25s;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(7, 17, 31, .34);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--amarillo);
  outline-offset: 3px;
}

.back-to-top svg {
  width: 25px;
  height: 25px;
}

footer {
  margin-top: 44px;
  padding: 26px 20px;
  color: #fff;
  background: #07111f;
  text-align: center;
}

footer p {
  margin: 0;
}

.topbar nav a[aria-current="page"] {
  color: #07265d;
  background: #fff;
  box-shadow: 0 5px 14px rgba(16, 58, 140, .12);
}

.topbar nav .nav-logout {
  margin: 0;
}

.topbar nav .nav-logout button {
  position: relative;
  min-height: 40px;
  padding: 9px 15px 11px;
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--catalog-blue), #7c3aed);
  font-weight: 900;
  cursor: pointer;
  transition: transform .25s, box-shadow .25s;
}

.topbar nav .nav-logout button:hover,
.topbar nav .nav-logout button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(16, 58, 140, .18);
}

.catalog-page {
  width: var(--ancho-pagina);
  margin: 24px auto 48px;
}

.catalog-hero {
  min-height: 185px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  gap: 18px;
  align-items: center;
  padding: 26px 32px;
  border: 1px solid rgba(16, 58, 140, .12);
  border-bottom: 5px solid var(--catalog-green);
  border-radius: 32px;
  color: #092b59;
  background:
    linear-gradient(105deg, rgba(255,255,255,.96) 0%, rgba(237,247,255,.92) 55%, rgba(222,246,240,.86) 100%),
    url("../imagenes/fondo-banner-optimizado.jpg") right center / auto 100% no-repeat;
  box-shadow: 0 22px 55px rgba(7, 28, 63, .16);
}

.catalog-hero h1 {
  margin: 0 0 8px;
  color: #07111f;
  font-size: clamp(36px, 4.2vw, 48px);
  line-height: .96;
  letter-spacing: 0;
}

.catalog-hero p {
  max-width: 720px;
  color: #40516f;
  font-size: 15px;
}

.catalog-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.catalog-summary div {
  min-height: 78px;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 10px;
  border: 1px solid #d8e5f1;
  border-radius: 18px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 12px 28px rgba(16, 58, 140, .10);
  text-align: center;
}

.catalog-summary strong {
  color: var(--catalog-blue);
  font-size: 28px;
  line-height: 1;
}

.catalog-summary span {
  margin-top: 4px;
  color: #52657e;
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
}

.catalog-shortcuts {
  position: sticky;
  top: 94px;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 30px;
  padding: 8px;
  border: 1px solid #d9e5f2;
  border-radius: 18px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 14px 32px rgba(16, 58, 140, .11);
  backdrop-filter: blur(12px);
}

.catalog-shortcuts a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 12px;
  color: #123462;
  background: #f2f7fc;
  font-weight: 900;
  font-size: 13px;
  transition: transform .22s ease, background .22s ease, color .22s ease;
}

.catalog-shortcuts a:hover,
.catalog-shortcuts a:focus-visible {
  color: #fff;
  background: var(--catalog-blue);
  transform: translateY(-2px);
}

.catalog-section {
  scroll-margin-top: 162px;
  margin: 0 0 42px;
}

.catalog-title {
  margin-bottom: 18px;
}

.catalog-title h2 {
  color: #092b59;
  letter-spacing: 0;
}

.catalog-level-group {
  margin-bottom: 18px;
}

.catalog-subject-group {
  margin-bottom: 18px;
}

.catalog-subject-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: fit-content;
  max-width: 100%;
  min-height: 34px;
  margin: 0 0 8px;
  padding: 5px 8px 5px 10px;
  border: 1px solid #dce8f3;
  border-left: 4px solid var(--catalog-teal);
  border-radius: 10px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 5px 14px rgba(18, 65, 106, .05);
}

.catalog-subject-heading div {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.catalog-subject-heading h4 {
  margin: 0;
  color: #092b59;
  font-size: 15px;
  line-height: 1.1;
  letter-spacing: 0;
}

.catalog-subject-heading span {
  flex: 0 0 auto;
  padding: 4px 8px;
  border-radius: 999px;
  color: #075f36;
  background: #dff8ea;
  font-size: 11px;
  font-weight: 900;
}

.catalog-subject-heading .catalog-level-chip {
  color: #fff;
  background: linear-gradient(135deg, #0872b5, #18c2aa);
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(var(--cards-per-row, 4), minmax(0, 1fr));
  gap: 12px;
}

.resource-card {
  position: relative;
  min-height: 218px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 10px;
  align-items: start;
  padding: 14px;
  overflow: hidden;
  border: 1px solid #d8e5f1;
  border-top: 5px solid var(--accent);
  border-radius: 18px;
  color: #172033;
  background: #fff;
  box-shadow: 0 16px 45px rgba(16, 58, 140, .12);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.resource-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(140deg, color-mix(in srgb, var(--accent) 13%, white), transparent 48%);
  pointer-events: none;
}

.resource-card > * {
  position: relative;
  z-index: 1;
}

.resource-card:hover,
.resource-card:focus-visible {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--accent) 42%, #d8e5f1);
  box-shadow: 0 22px 55px rgba(16, 58, 140, .18);
}

.resource-card:focus-visible {
  outline: 3px solid rgba(31, 182, 255, .42);
  outline-offset: 4px;
}

.resource-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  background: var(--accent);
  box-shadow: 0 16px 30px color-mix(in srgb, var(--accent) 28%, transparent);
}

.resource-icon svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.resource-content {
  min-width: 0;
  display: grid;
  gap: 6px;
}

.resource-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.resource-meta b,
.resource-meta em,
.resource-meta i {
  width: fit-content;
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  padding: 5px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
}

.resource-meta b {
  color: #fff;
  background: var(--accent);
}

.resource-meta em {
  color: #123462;
  background: #edf5ff;
}

.resource-meta i {
  color: #075f36;
  background: #dff8ea;
}

.resource-content strong {
  color: #092b59;
  font-size: clamp(16px, 1.25vw, 20px);
  line-height: 1.08;
  letter-spacing: 0;
}

.resource-content small {
  max-width: 56ch;
  color: #53657d;
  font-size: 12px;
  line-height: 1.35;
}

.resource-action {
  align-self: end;
  width: 100%;
  min-width: 0;
  display: inline-flex;
  justify-content: center;
  min-height: 34px;
  padding: 8px 12px;
  border-radius: 11px;
  color: #fff;
  background: #092b59;
  font-size: 12px;
  font-weight: 900;
}

.resource-guide { --accent: var(--catalog-green); }
.resource-history { --accent: var(--catalog-blue); }
.resource-art { --accent: var(--catalog-rose); }
.resource-colony { --accent: var(--catalog-teal); }
.resource-social { --accent: var(--catalog-gold); }
.resource-default { --accent: var(--catalog-sky); }
.resource-social .resource-meta b,
.resource-social .resource-icon { color: #172033; }

body.modal-open {
  overflow: hidden;
}

.guide-access-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: grid;
  place-items: center;
  padding: 22px;
}

.guide-access-modal[hidden] {
  display: none;
}

.guide-access-backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(7, 17, 31, .72), rgba(16, 58, 140, .58)),
    url("../imagenes/fondo-banner-optimizado.jpg") center / cover no-repeat;
  backdrop-filter: blur(12px);
}

.guide-access-dialog {
  position: relative;
  z-index: 1;
  width: min(460px, 100%);
  padding: 28px;
  border: 1px solid rgba(16, 58, 140, .14);
  border-bottom: 5px solid var(--catalog-green);
  border-radius: 26px;
  color: #092b59;
  background:
    linear-gradient(145deg, rgba(255,255,255,.97), rgba(238,247,255,.96)),
    url("../imagenes/fondo-banner-optimizado.jpg") right center / auto 100% no-repeat;
  box-shadow: 0 30px 80px rgba(7, 17, 31, .30);
}

.guide-access-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 12px;
  color: #123462;
  background: #edf5ff;
  cursor: pointer;
}

.guide-access-close svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
}

.guide-access-dialog h2 {
  margin: 10px 44px 8px 0;
  color: #07111f;
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0;
}

.guide-access-dialog p {
  margin-bottom: 18px;
  color: #40516f;
  font-size: 15px;
  line-height: 1.45;
}

.guide-access-dialog form {
  display: grid;
  gap: 14px;
}

.guide-access-dialog label {
  display: grid;
  gap: 7px;
  color: #18345f;
  font-size: 13px;
  font-weight: 900;
}

.guide-access-dialog input {
  width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  border: 1px solid #cbdced;
  border-radius: 13px;
  color: #172033;
  background: rgba(248, 251, 255, .96);
  outline: none;
}

.guide-access-dialog input:focus {
  border-color: var(--catalog-sky);
  box-shadow: 0 0 0 4px rgba(31, 182, 255, .18);
}

.guide-access-error {
  padding: 11px 13px;
  border-left: 5px solid #e11d48;
  border-radius: 7px 13px 13px 7px;
  color: #8f1231;
  background: #fff1f4;
  font-size: 13px;
  font-weight: 900;
}

.catalog-status,
.admin-alert,
.admin-panel {
  margin-bottom: 18px;
  border: 1px solid #d8e5f1;
  border-radius: 20px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 14px 32px rgba(16, 58, 140, .10);
}

.catalog-status {
  padding: 18px;
  color: #40516f;
  font-weight: 900;
}

.admin-page {
  max-width: 1180px;
}

.admin-body {
  min-height: 100vh;
}

.admin-login-body .admin-page {
  min-height: calc(100vh - 112px);
  display: grid;
  grid-template-rows: auto minmax(340px, 1fr);
  align-items: start;
}

.admin-hero {
  min-height: 170px;
  grid-template-columns: 1fr;
  margin-bottom: 18px;
}

.admin-login-body .admin-hero {
  width: 100%;
  margin-bottom: 0;
}

.admin-alert {
  padding: 13px 16px;
  font-weight: 900;
}

.admin-alert-ok {
  border-left: 5px solid var(--catalog-green);
  color: #075f36;
  background: #edfdf4;
}

.admin-alert-error {
  border-left: 5px solid #e11d48;
  color: #8f1231;
  background: #fff1f4;
}

.admin-save-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: 20px;
}

.admin-save-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(7, 17, 31, .52);
  backdrop-filter: blur(8px);
  cursor: pointer;
}

.admin-save-dialog {
  position: relative;
  z-index: 1;
  width: min(390px, 100%);
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 24px 22px;
  border: 1px solid rgba(255, 255, 255, .8);
  border-bottom: 5px solid var(--catalog-green);
  border-radius: 20px;
  color: #092b59;
  background: #fff;
  box-shadow: 0 30px 80px rgba(7, 17, 31, .26);
  text-align: center;
}

.admin-save-dialog:focus {
  outline: none;
}

.admin-save-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--catalog-green), var(--catalog-teal));
  box-shadow: 0 14px 28px rgba(0, 166, 35, .18);
}

.admin-save-icon svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-save-dialog h2 {
  margin: 0;
  color: #092b59;
  font-size: 24px;
  line-height: 1.12;
  letter-spacing: 0;
}

.admin-save-dialog p {
  margin: 0;
  color: #53657d;
  font-size: 14px;
}

.admin-panel {
  padding: 22px;
}

.admin-panel h2 {
  margin-bottom: 16px;
  color: #092b59;
  font-size: 26px;
  letter-spacing: 0;
}

.admin-form {
  display: grid;
  gap: 14px;
}

.admin-form-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-layout-form {
  grid-template-columns: minmax(180px, 260px) auto;
  align-items: end;
}

.admin-form label {
  display: grid;
  gap: 7px;
  color: #18345f;
  font-size: 13px;
  font-weight: 900;
}

.admin-form input,
.admin-form select,
.admin-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid #cbdced;
  border-radius: 12px;
  color: #172033;
  background: #f8fbff;
  outline: none;
}

.admin-form textarea {
  resize: vertical;
}

.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
  border-color: var(--catalog-sky);
  box-shadow: 0 0 0 4px rgba(31, 182, 255, .18);
}

.password-field {
  position: relative;
  display: block;
}

.password-field input {
  padding-right: 54px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 11px;
  color: #123462;
  background: #edf5ff;
  cursor: pointer;
  transform: translateY(-50%);
  transition: color .22s ease, background .22s ease, transform .22s ease;
}

.password-toggle:hover,
.password-toggle:focus-visible {
  color: #fff;
  background: var(--catalog-blue);
}

.password-toggle svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-wide {
  grid-column: 1 / -1;
}

.admin-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-password-settings {
  display: grid;
  grid-template-columns: minmax(220px, .7fr) minmax(260px, 1fr);
  gap: 14px;
  align-items: end;
  padding: 14px;
  border: 1px solid #d8e5f1;
  border-radius: 16px;
  background: #f8fbff;
}

.admin-password-settings[hidden],
.admin-password-settings [hidden] {
  display: none !important;
}

.admin-auto-password-note {
  min-height: 46px;
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border-left: 5px solid var(--catalog-green);
  border-radius: 8px 13px 13px 8px;
  color: #075f36;
  background: #dff8ea;
  font-size: 13px;
  font-weight: 900;
}

.admin-switch {
  min-height: 46px;
  display: flex !important;
  grid-template-columns: none !important;
  align-items: center;
  gap: 10px !important;
  padding: 10px 12px;
  border-radius: 13px;
  background: #edf5ff;
}

.admin-switch input {
  width: 18px;
  min-height: 18px;
  height: 18px;
  padding: 0;
  flex: 0 0 18px;
}

.admin-login-panel {
  width: min(460px, 100%);
  max-width: 460px;
  align-self: center;
  justify-self: center;
  margin: 26px auto 0;
  padding: 26px;
}

.admin-resource-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.admin-resource-item {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 12px;
  align-items: start;
  min-height: 165px;
  padding: 12px;
  border: 1px solid #dce5ef;
  border-radius: 14px;
  background: #f8fbff;
}

.admin-resource-item strong,
.admin-resource-item span,
.admin-resource-item a {
  display: block;
}

.admin-resource-item strong {
  color: #092b59;
  font-size: 15px;
  line-height: 1.15;
}

.admin-resource-item span {
  color: #53657d;
  font-size: 12px;
  line-height: 1.25;
}

.admin-lock-label {
  width: fit-content;
  margin-top: 6px;
  padding: 5px 8px;
  border-radius: 999px;
  color: #075f36 !important;
  background: #dff8ea;
  font-size: 10px !important;
  font-weight: 900;
  text-transform: uppercase;
}

.admin-resource-item a {
  margin-top: 3px;
  color: #0f62fe;
  font-size: 11px;
  overflow-wrap: anywhere;
}

.admin-resource-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-resource-actions form {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-icon-button {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 12px;
  color: #fff;
  background: #092b59;
  cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
}

.admin-icon-button svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-icon-button:hover,
.admin-icon-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 9px 18px rgba(16, 58, 140, .18);
}

.admin-edit {
  background: var(--catalog-blue);
}

.admin-delete {
  background: #e11d48;
}

@supports not (color: color-mix(in srgb, red, white)) {
  .resource-card::before {
    background: linear-gradient(140deg, rgba(31, 182, 255, .10), transparent 48%);
  }

  .resource-icon {
    box-shadow: 0 16px 30px rgba(16, 58, 140, .16);
  }
}

@media (max-width: 980px) {
  .catalog-page {
    width: 92%;
  }

  .catalog-hero {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 26px;
  }

  .catalog-shortcuts {
    top: 88px;
  }

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

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

  .admin-resource-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .catalog-page {
    width: 94%;
    margin-top: 16px;
  }

  .topbar nav .nav-logout {
    width: 100%;
  }

  .topbar nav .nav-logout button {
    width: 100%;
  }

  .catalog-hero {
    min-height: 0;
    gap: 14px;
    padding: 22px 18px;
    border-radius: 24px;
    background:
      linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(237,247,255,.94) 100%),
      url("../imagenes/fondo-banner-optimizado.jpg") center top / cover no-repeat;
  }

  .catalog-hero h1 {
    font-size: 34px;
  }

  .catalog-hero p {
    font-size: 16px;
  }

  .catalog-summary {
    grid-template-columns: 1fr;
  }

  .catalog-summary div {
    min-height: 74px;
    grid-template-columns: auto 1fr;
    justify-items: start;
    gap: 10px;
    text-align: left;
  }

  .catalog-summary strong {
    font-size: 28px;
  }

  .catalog-shortcuts {
    position: static;
    margin: 14px 0 30px;
  }

  .catalog-shortcuts a {
    flex: 1 1 46%;
  }

  .catalog-section {
    scroll-margin-top: 24px;
  }

  .resource-card {
    min-height: 0;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 10px;
    padding: 14px;
    border-radius: 16px;
  }

  .resource-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
  }

  .resource-icon svg {
    width: 32px;
    height: 32px;
  }

  .resource-action {
    grid-column: 1 / -1;
    width: 100%;
  }

  .resource-content strong {
    font-size: 18px;
  }

  .admin-login-body .admin-page {
    min-height: auto;
    grid-template-rows: auto auto;
  }

  .admin-panel,
  .admin-login-panel {
    padding: 18px;
  }

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

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

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

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

  .admin-resource-actions {
    justify-content: flex-start;
  }

  .admin-resource-actions form {
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  .topbar {
    width: 94%;
    min-height: 66px;
    flex-wrap: nowrap;
    padding: 8px 12px;
    border-radius: 18px;
  }

  .topbar .logo-mark {
    width: 74px;
    height: 44px;
  }

  .topbar .menu-toggle {
    display: block;
  }

  .topbar nav {
    position: absolute;
    top: calc(100% + 9px);
    left: 0;
    right: 0;
    z-index: 11;
    width: 100%;
    display: none;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 10px;
    border: 1px solid #d9e5f2;
    border-radius: 18px;
    background: rgba(255, 255, 255, .98);
    box-shadow: 0 18px 38px rgba(16, 58, 140, .16);
  }

  .topbar nav.active {
    display: grid;
  }

  .topbar nav a {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 14px;
    background: #f2f7fc;
    text-align: left;
  }

  .section-title {
    grid-template-columns: 1fr;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 46px;
    height: 46px;
  }
}

/* Estilo unificado con el index */
:root {
  --catalog-edge: 1cm;
}

.topbar {
  position: fixed;
  top: 10px;
  left: var(--catalog-edge);
  right: var(--catalog-edge);
  z-index: 250;
  width: auto;
  min-height: 72px;
  margin: 0;
  padding: 9px 16px 9px 20px;
  gap: 24px;
  border: 1px solid rgba(255, 255, 255, .86);
  border-radius: 28px;
  background: rgba(255, 255, 255, .98);
  color: #0b3568;
  box-shadow: 0 14px 36px rgba(0, 39, 78, .18);
  backdrop-filter: blur(14px);
}

.logo {
  min-width: max-content;
  gap: 9px;
  color: #092f69;
}

.logo-mark {
  width: 101px;
  height: 48px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.logo-label {
  display: inline-flex;
  align-items: baseline;
  color: #092f69;
  font-size: 27px;
  line-height: 1;
  font-weight: 950;
  letter-spacing: 0;
}

.logo-label strong {
  color: #0aa98f;
}

.topbar nav {
  flex: 1;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0;
  border-radius: 0;
  background: transparent;
}

.topbar nav a {
  gap: 7px;
  min-height: 43px;
  padding: 11px 14px;
  border-radius: 18px;
  color: #153c70;
  background: transparent;
  font-weight: 650;
  white-space: nowrap;
}

.topbar nav a span {
  font-size: 17px;
}

.topbar nav a:hover,
.topbar nav a:focus-visible,
.topbar nav a[aria-current="page"] {
  color: #fff;
  background: linear-gradient(135deg, #0872b5, #18c2aa);
  box-shadow: 0 8px 20px rgba(10, 127, 165, .23);
}

.topbar nav .nav-logout button {
  min-height: 43px;
  padding: 11px 14px;
  border-radius: 18px;
  background: linear-gradient(135deg, #0872b5, #18c2aa);
  font-weight: 750;
}

body {
  background:
    radial-gradient(circle at 8% 10%, rgba(31, 182, 255, .12), transparent 28%),
    radial-gradient(circle at 90% 5%, rgba(29, 169, 129, .13), transparent 25%),
    linear-gradient(180deg, #f8fcff 0%, #ffffff 58%, #f4f8fb 100%);
}

.catalog-page {
  width: calc(100% - (var(--catalog-edge) * 2));
  margin: 104px auto 42px;
}

.catalog-hero {
  min-height: 160px;
  padding: 24px 30px;
  border: 1px solid #dce8f3;
  border-bottom: 0;
  border-radius: 28px;
  background:
    radial-gradient(circle at 88% 18%, rgba(48, 237, 190, .26), transparent 28%),
    linear-gradient(115deg, #07437f 0%, #07849d 65%, #18c29d 100%);
  color: #fff;
  box-shadow: 0 22px 55px rgba(0, 39, 78, .18);
}

.catalog-hero h1,
.catalog-title h2,
.admin-panel h2 {
  letter-spacing: 0;
}

.catalog-hero h1 {
  color: #fff;
  font-size: clamp(34px, 3.8vw, 48px);
}

.catalog-hero p {
  color: #e9f8ff;
}

.catalog-hero .badge {
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .18);
}

.catalog-summary div {
  border-color: rgba(255, 255, 255, .28);
  background: rgba(255, 255, 255, .14);
  box-shadow: none;
}

.catalog-summary strong,
.catalog-summary span {
  color: #fff;
}

.catalog-shortcuts {
  top: 96px;
  border-color: #dce8f3;
  border-radius: 20px;
  box-shadow: 0 12px 30px rgba(18, 65, 106, .10);
}

.catalog-shortcuts a:hover,
.catalog-shortcuts a:focus-visible {
  background: linear-gradient(135deg, #0872b5, #18c2aa);
}

.catalog-section {
  margin-bottom: 34px;
}

.resource-grid {
  grid-template-columns: repeat(var(--cards-per-row, 4), minmax(0, 1fr));
  gap: 14px;
}

.resource-card {
  border-color: #dce8f3;
  border-radius: 18px;
  box-shadow: 0 10px 26px rgba(18, 65, 106, .07);
}

.back-to-top {
  right: 1cm;
  bottom: 1cm;
  border-radius: 18px;
  background: linear-gradient(135deg, #0872b5, #18c2aa);
}

@media (max-width: 1100px) {
  .logo-label {
    font-size: 22px;
  }

  .logo-mark {
    width: 82px;
  }

  .topbar nav {
    gap: 2px;
  }

  .topbar nav a {
    padding: 10px 9px;
    font-size: 13px;
  }

  .resource-grid {
    grid-template-columns: repeat(var(--cards-per-row, 3), minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  :root {
    --catalog-edge: 10px;
  }

  .topbar {
    min-height: 66px;
    padding: 10px;
    border-radius: 22px;
  }

  .topbar .logo-mark {
    width: 66px;
    height: 42px;
  }

  .logo-label {
    font-size: 19px;
  }

  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    margin-left: auto;
  }

  .menu-toggle span {
    position: static;
    display: block;
    height: 2.5px;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
  }

  .topbar nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    z-index: 200;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 5px;
    padding: 12px;
    border: 1px solid #dfeaf4;
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(4, 47, 86, .22);
  }

  .topbar nav.active {
    display: flex;
  }

  .topbar nav a {
    width: 100%;
    justify-content: flex-start;
    padding: 13px 15px;
    border-radius: 14px;
    font-size: 14px;
  }

  .catalog-page {
    width: calc(100% - 34px);
    margin-top: 94px;
  }
}

@media (max-width: 620px) {
  .catalog-hero {
    padding: 20px 18px;
  }

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

/* Ajustes responsive para el administrador del catalogo */
.admin-session-body {
  overflow-x: hidden;
}

.admin-session-body .catalog-page,
.admin-session-body .admin-page {
  width: calc(100vw - (var(--catalog-edge) * 2));
  max-width: none;
}

.admin-session-body .admin-hero,
.admin-session-body .admin-panel,
.admin-session-body .admin-alert {
  width: 100%;
}

.admin-session-body .admin-form-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.admin-session-body .admin-layout-form {
  grid-template-columns: minmax(180px, 280px) auto;
}

.admin-resources-panel {
  display: grid;
  gap: 16px;
}

.admin-section-head,
.admin-teacher-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.admin-section-head h2,
.admin-teacher-head h3 {
  margin: 0;
  letter-spacing: 0;
}

.admin-section-head span,
.admin-teacher-head span {
  flex: 0 0 auto;
  padding: 7px 11px;
  border-radius: 999px;
  color: #075f36;
  background: #dff8ea;
  font-size: 12px;
  font-weight: 900;
}

.admin-empty-state {
  margin: 0;
  padding: 16px;
  border: 1px dashed #bfd3e6;
  border-radius: 16px;
  color: #53657d;
  background: #f8fbff;
  font-weight: 800;
}

.admin-teacher-list {
  display: grid;
  gap: 18px;
}

.admin-teacher-group {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid #d8e5f1;
  border-radius: 18px;
  background: linear-gradient(180deg, #f8fbff 0%, #fff 100%);
}

.admin-teacher-head {
  padding-bottom: 10px;
  border-bottom: 1px solid #dce8f3;
}

.admin-teacher-head h3 {
  color: #092b59;
  font-size: 20px;
  font-weight: 950;
}

.admin-teacher-group .admin-resource-list {
  grid-template-columns: repeat(auto-fit, minmax(235px, 1fr));
  gap: 12px;
}

.admin-teacher-group .admin-resource-item {
  min-height: 178px;
  background: #fff;
}

@media (min-width: 1500px) {
  .admin-teacher-group .admin-resource-list {
    grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  }
}

@media (max-width: 900px) {
  .admin-session-body .catalog-page,
  .admin-session-body .admin-page {
    width: calc(100vw - 20px);
  }

  .admin-session-body .admin-layout-form {
    grid-template-columns: 1fr;
  }

  .admin-section-head,
  .admin-teacher-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .admin-teacher-group {
    padding: 12px;
  }
}

/* Login limpio del administrador */
.admin-login-body {
  overflow-x: hidden;
}

.admin-login-body .catalog-page,
.admin-login-body .admin-page {
  width: calc(100vw - (var(--catalog-edge) * 2));
  max-width: none;
  min-height: calc(100vh - 138px);
  margin-top: 104px;
  margin-bottom: 24px;
  display: grid;
  align-items: center;
  justify-items: center;
}

.admin-login-body .admin-alert {
  width: min(520px, 100%);
  justify-self: center;
}

.admin-login-panel {
  width: min(470px, 100%);
  max-width: none;
  margin: 0 auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(210, 226, 241, .95);
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 26px 70px rgba(7, 39, 77, .16);
}

.admin-login-brand {
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 30px 30px 24px;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(circle at 15% 18%, rgba(48, 237, 190, .28), transparent 28%),
    linear-gradient(135deg, #073763 0%, #087096 58%, #18c8ab 100%);
}

.admin-login-brand img {
  width: 108px;
  height: 74px;
  object-fit: contain;
  padding: 10px;
  border-radius: 22px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 16px 36px rgba(4, 35, 70, .22);
}

.admin-login-brand span {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 8px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, .32);
  border-radius: 999px;
  color: #eaf8ff;
  background: rgba(6, 36, 75, .32);
  font-size: 12px;
  font-weight: 900;
}

.admin-login-brand h2 {
  margin: 0;
  color: #fff;
  font-size: 28px;
  line-height: 1.08;
}

.admin-login-brand p {
  max-width: 330px;
  margin: 8px auto 0;
  color: #e4f8ff;
  font-size: 14px;
  line-height: 1.45;
}

.admin-login-panel .admin-form {
  padding: 24px 28px 28px;
  gap: 16px;
}

.admin-login-panel .admin-form input {
  min-height: 50px;
  border-radius: 15px;
  background: #f8fbff;
}

.admin-login-panel .password-toggle {
  width: 40px;
  height: 40px;
  border-radius: 13px;
}

.admin-login-panel .btn {
  min-height: 50px;
  border-radius: 15px;
  background: linear-gradient(135deg, #0872b5, #18c2aa);
  box-shadow: 0 14px 26px rgba(10, 127, 165, .24);
}

@media (max-width: 900px) {
  .admin-login-body .catalog-page,
  .admin-login-body .admin-page {
    width: calc(100vw - 20px);
    min-height: calc(100vh - 118px);
    margin-top: 94px;
  }
}

@media (max-width: 520px) {
  .admin-login-panel {
    border-radius: 22px;
  }

  .admin-login-brand {
    padding: 24px 20px 20px;
  }

  .admin-login-brand h2 {
    font-size: 24px;
  }

  .admin-login-panel .admin-form {
    padding: 20px;
  }
}