:root {
  color-scheme: dark light;
  /* Liquid Glass design tokens (macOS Tahoe / iOS 26 / iPadOS 26 / visionOS) */
  --bg: #07111d;
  --bg-2: #0c1620;
  --bg-3: #102018;
  --surface: rgba(255, 255, 255, 0.08);
  --surface-strong: rgba(255, 255, 255, 0.14);
  --glass-tint: rgba(255, 255, 255, 0.06);
  --glass-tint-strong: rgba(255, 255, 255, 0.12);
  --glass-blur: 32px;
  --glass-blur-strong: 48px;
  --glass-saturate: 180%;
  --line: rgba(255, 255, 255, 0.18);
  --hairline: rgba(255, 255, 255, 0.12);
  --text: #eef6ff;
  --muted: #a9bacf;
  --accent: #39d98a;
  --accent-2: #67d1ff;
  --accent-3: #c4a7ff;
  --danger: #ff8d8d;
  --warning: #ffd166;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --shadow-elevated: 0 30px 100px rgba(0, 0, 0, 0.5);

  /* Squircle / continuous corner radii */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;

  /* Apple-style spring easings */
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 150ms;
  --dur-base: 280ms;
  --dur-slow: 480ms;

  /* Safe area insets for notched devices */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

/* font-display: swap para evitar FOIT (flash of invisible text) */
@font-face {
  font-family: "Inter-Local-Fallback";
  src: local("Inter"), local("system-ui");
  font-display: swap;
}

@media (prefers-color-scheme: light) {
  :root.allow-light {
    --bg: #f4f6fb;
    --bg-2: #eaeef5;
    --bg-3: #e0e6f0;
    --surface: rgba(0, 0, 0, 0.05);
    --surface-strong: rgba(0, 0, 0, 0.09);
    --glass-tint: rgba(255, 255, 255, 0.6);
    --glass-tint-strong: rgba(255, 255, 255, 0.78);
    --line: rgba(0, 0, 0, 0.14);
    --hairline: rgba(0, 0, 0, 0.08);
    --text: #0c1422;
    --muted: #506178;
    --shadow: 0 18px 50px rgba(20, 32, 60, 0.18);
    --shadow-elevated: 0 24px 70px rgba(20, 32, 60, 0.28);
  }
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(57, 217, 138, .18), transparent 26%),
    radial-gradient(circle at 84% 10%, rgba(255, 141, 141, .14), transparent 25%),
    radial-gradient(circle at 76% 72%, rgba(255, 209, 102, .12), transparent 29%),
    radial-gradient(circle at 28% 62%, rgba(103, 209, 255, .12), transparent 30%),
    linear-gradient(145deg, var(--bg), #10151c 42%, var(--bg-3));
  color: var(--text);
}

button, input { font: inherit; }

button, [role="button"] {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

input { font-size: 16px; }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-to-content {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--accent);
  color: #06110b;
  font-weight: 800;
  border-radius: 6px;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform .15s ease;
}

.skip-to-content:focus { transform: translateY(0); }

#bio-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .42;
  z-index: 0;
}

/* Hero */
.hero {
  position: relative;
  z-index: 1;
  min-height: 92svh;
  min-height: 92vh;
  display: grid;
  align-items: center;
  padding: 64px 0 56px;
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  gap: 28px;
}

.brand-block {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: rgba(57, 217, 138, .06);
  border-radius: 0 8px 8px 0;
  max-width: 720px;
  animation: slide-fade-in .9s ease both;
}

.brand-line { margin: 0; line-height: 1.35; }

.brand-primary {
  color: var(--accent);
  font-size: .82rem;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.brand-secondary {
  color: var(--text);
  font-size: .92rem;
  font-weight: 700;
}

.brand-tertiary {
  color: var(--muted);
  font-size: .85rem;
  font-style: italic;
}

.hero-title {
  margin: 0;
  font-size: clamp(3.5rem, 13vw, 11rem);
  line-height: .9;
  letter-spacing: -0.02em;
  font-weight: 900;
  display: flex;
  flex-wrap: wrap;
}

.hero-title-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  animation: hero-word-in 1.1s cubic-bezier(.2,.7,.2,1) forwards;
  animation-delay: var(--delay, 0ms);
  background: linear-gradient(180deg, #eef6ff 0%, #c9d6e8 78%, #8ea1bb 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 60%, #b39bff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title-word[data-delay] { --delay: 0ms; }
.hero-title-word[data-delay="120"] { --delay: 140ms; }

@keyframes hero-word-in {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-fade-in {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-tagline {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2.2vw, 1.35rem);
  line-height: 1.6;
  animation: slide-fade-in 1s 250ms ease both;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  max-width: 920px;
  animation: slide-fade-in 1s 400ms ease both;
}

.hero-meta-item {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 10px;
  background: rgba(255, 255, 255, .04);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.hero-meta-item:hover {
  transform: translateY(-2px);
  border-color: rgba(103, 209, 255, .35);
  background: rgba(103, 209, 255, .08);
}

.hero-meta-label {
  color: var(--muted);
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.hero-meta-item strong {
  color: var(--text);
  font-size: .94rem;
  line-height: 1.4;
  font-weight: 700;
}

.hero-arrow {
  margin-top: 16px;
  font-size: 1.6rem;
  color: var(--accent);
  text-align: center;
  animation: bounce 1.6s ease-in-out infinite;
  width: max-content;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* Welcome strip — bienvenida cálida entre hero y catálogo */
.welcome-strip {
  position: relative;
  z-index: 1;
  padding: 72px 0 56px;
  display: flex;
  justify-content: center;
}

.welcome-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(57, 217, 138, .14), transparent 55%),
    radial-gradient(ellipse at 12% 100%, rgba(103, 209, 255, .10), transparent 50%),
    radial-gradient(ellipse at 88% 90%, rgba(255, 209, 102, .10), transparent 55%);
  z-index: -1;
}

.welcome-inner {
  position: relative;
  width: min(880px, calc(100% - 32px));
  text-align: center;
  padding: 56px 36px 48px;
  background: linear-gradient(165deg,
    rgba(255, 255, 255, 0.07),
    rgba(255, 255, 255, 0.03) 60%,
    rgba(57, 217, 138, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
}

.welcome-quote-mark {
  position: absolute;
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 7rem;
  line-height: 0.6;
  color: var(--accent);
  opacity: 0.42;
  user-select: none;
  pointer-events: none;
}

.welcome-quote-open {
  top: 18px;
  left: 22px;
}

.welcome-quote-close {
  bottom: 4px;
  right: 22px;
  color: var(--accent-2);
}

.welcome-title {
  margin: 0 0 18px;
  font-size: clamp(1.2rem, 1rem + 1vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  text-transform: none;
}

.welcome-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.welcome-body {
  margin: 0 0 18px;
  font-size: clamp(1.05rem, 0.96rem + 0.5vw, 1.35rem);
  font-weight: 400;
  line-height: 1.55;
  color: var(--text);
  letter-spacing: 0.005em;
}

.welcome-body strong {
  color: var(--accent);
  font-weight: 700;
}

.welcome-body em {
  color: var(--accent-2);
  font-style: normal;
  font-weight: 600;
  padding: 0 4px;
  border-radius: 4px;
  background: rgba(103, 209, 255, 0.08);
}

.welcome-cheer {
  margin: 22px 0 18px;
  font-size: clamp(0.98rem, 0.9rem + 0.4vw, 1.2rem);
  font-weight: 500;
  line-height: 1.5;
  color: var(--muted);
  font-style: italic;
}

.welcome-cheer .welcome-divider {
  display: inline-block;
  margin: 0 6px;
  color: var(--warning);
  font-style: normal;
  font-weight: 800;
  transform: translateY(-2px);
}

.welcome-pura-vida {
  margin: 24px 0 8px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.pv-flag {
  display: inline-flex;
  flex-direction: column;
  width: 30px;
  height: 20px;
  border-radius: 3px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 0, 0, 0.3);
}

.pv-stripe { flex: 1; }
.pv-stripe.pv-blue { background: #002b7f; }
.pv-stripe.pv-white { background: #ffffff; flex: 0.6; }
.pv-stripe.pv-red { background: #ce1126; flex: 1.4; }

.pv-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.welcome-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 12px 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), #2bb478);
  color: #06110b;
  font-weight: 800;
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: 0.01em;
  box-shadow:
    0 12px 30px rgba(57, 217, 138, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: transform .15s ease, box-shadow .15s ease;
}

.welcome-cta:hover {
  transform: translateY(-2px);
  box-shadow:
    0 16px 36px rgba(57, 217, 138, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.welcome-cta:active { transform: translateY(0); }

.welcome-cta-arrow {
  display: inline-block;
  transition: transform .25s ease;
}

.welcome-cta:hover .welcome-cta-arrow {
  transform: translateY(3px);
}

@media (max-width: 640px) {
  .welcome-strip { padding: 48px 0 32px; }
  .welcome-inner { padding: 44px 22px 36px; border-radius: 18px; }
  .welcome-quote-mark { font-size: 4.5rem; }
  .welcome-quote-open { top: 8px; left: 12px; }
  .welcome-quote-close { bottom: -2px; right: 12px; }
  .welcome-pura-vida { font-size: 1.05rem; padding: 8px 16px; }
  .pv-flag { width: 24px; height: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .welcome-cta, .welcome-cta-arrow { transition: none; }
}

/* Shell + catalog */
.shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0;
}

.catalog-controls {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.catalog-search {
  position: relative;
  display: flex;
  align-items: center;
}

.catalog-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 1.1rem;
}

#search-input {
  width: 100%;
  padding: 12px 14px 12px 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(5, 11, 20, .68);
  color: var(--text);
  font-size: .95rem;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: border-color .15s ease, box-shadow .15s ease;
}

#search-input:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(103, 209, 255, .18);
}

.catalog-filters {
  display: flex;
  gap: 6px;
}

.filter-btn {
  padding: 9px 13px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: .82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s ease;
}

.filter-btn:hover {
  background: rgba(103, 209, 255, .12);
  border-color: rgba(103, 209, 255, .35);
}

.filter-btn.is-active {
  background: linear-gradient(135deg, var(--accent), #2db974);
  color: #06110b;
  border-color: var(--accent);
}

.catalog-count {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
}

.app-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .03));
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  text-decoration: none;
  color: inherit;
  transition: transform .25s cubic-bezier(.2,.7,.2,1), border-color .25s ease, box-shadow .25s ease;
  overflow: hidden;
  isolation: isolate;
}

.app-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--card-accent, var(--accent)) 0%, var(--card-accent-2, var(--accent-2)) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .25s ease;
  z-index: -1;
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 48px rgba(0, 0, 0, .35);
}

.app-card:hover::before { opacity: 1; }

.app-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.app-card-eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.app-card-subject,
.app-card-grade,
.app-card-status {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.app-card-subject {
  background: rgba(57, 217, 138, .14);
  color: var(--accent);
  border: 1px solid rgba(57, 217, 138, .3);
}

.app-card-grade {
  background: rgba(103, 209, 255, .12);
  color: var(--accent-2);
  border: 1px solid rgba(103, 209, 255, .28);
}

.app-card-status[data-status="live"] {
  background: rgba(57, 217, 138, .18);
  color: var(--accent);
  border: 1px solid rgba(57, 217, 138, .42);
  position: relative;
  padding-left: 18px;
}

.app-card-status[data-status="live"]::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
  50% { opacity: .55; transform: translateY(-50%) scale(1.4); }
}

.app-card-version {
  color: var(--muted);
  font-size: .68rem;
  font-family: ui-monospace, Menlo, monospace;
}

.app-card-title {
  margin: 0 0 6px;
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.app-card-subtitle {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.5;
}

.app-card-description {
  margin: 0 0 18px;
  color: var(--text);
  font-size: .92rem;
  line-height: 1.55;
  flex: 1;
}

.app-card-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 16px;
  padding: 12px;
  border: 1px dashed rgba(255, 255, 255, .14);
  border-radius: 10px;
  background: rgba(255, 255, 255, .03);
}

.app-card-stat {
  display: grid;
  gap: 2px;
}

.app-card-stat-label {
  color: var(--muted);
  font-size: .66rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.app-card-stat-value {
  color: var(--text);
  font-size: .9rem;
  font-weight: 700;
  font-family: ui-monospace, Menlo, monospace;
}

.app-card-highlights {
  margin: 0 0 18px;
  padding-left: 18px;
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: .84rem;
  line-height: 1.45;
}

.app-card-highlights li::marker {
  color: var(--accent);
  font-weight: 900;
}

.app-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.app-card-tag {
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .06);
  color: var(--muted);
  font-size: .7rem;
  font-weight: 600;
}

.app-card-cta {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #2db974);
  color: #06110b;
  font-weight: 950;
  font-size: .92rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  transition: filter .15s ease, transform .15s ease;
}

.app-card:hover .app-card-cta {
  filter: brightness(1.08);
}

.app-card-cta-arrow {
  font-size: 1.1rem;
  transition: transform .25s cubic-bezier(.2,.7,.2,1);
}

.app-card:hover .app-card-cta-arrow {
  transform: translateX(4px);
}

.catalog-empty {
  margin-top: 32px;
  padding: 40px 24px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, .03);
  text-align: center;
  color: var(--muted);
}

/* Info section */
.info-section {
  position: relative;
  z-index: 1;
  padding: 64px 0;
  border-top: 1px solid var(--line);
  background: rgba(7, 12, 20, .55);
}

.info-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.info-section h2 {
  margin: 0 0 28px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: -0.01em;
}

.info-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.info-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .04);
}

.info-step-num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06110b;
  font-weight: 950;
  font-size: 1rem;
}

.info-steps h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 800;
}

.info-steps p {
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.55;
}

.info-steps code {
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(103, 209, 255, .14);
  color: var(--accent-2);
  font-size: .85em;
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
}

.site-footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  gap: 8px;
}

.footer-brand {
  margin: 0;
  color: var(--text);
  font-size: .9rem;
  line-height: 1.55;
}

.footer-brand strong {
  color: var(--accent);
}

.footer-tech {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.55;
}

.footer-tech a {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 700;
}

.footer-tech a:hover {
  text-decoration: underline;
}

/* FAB + drawer del mapa de página */
.toc-fab {
  position: fixed;
  bottom: max(22px, env(safe-area-inset-bottom));
  right: max(22px, env(safe-area-inset-right));
  z-index: 35;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-2), #4ab9e8);
  color: #06141a;
  font-weight: 950;
  font-size: .9rem;
  border: 0;
  cursor: pointer;
  box-shadow: 0 14px 36px rgba(103, 209, 255, .42), 0 0 0 1px rgba(255, 255, 255, .14);
  transition: transform .14s ease, box-shadow .14s ease;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.toc-fab:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 42px rgba(103, 209, 255, .55);
}

.toc-fab-icon { font-size: 1.1rem; }

.toc-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 45;
  width: min(420px, 100%);
  display: flex;
  flex-direction: column;
  background: rgba(7, 12, 20, .96);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-left: 1px solid rgba(255, 255, 255, .14);
  box-shadow: -22px 0 60px rgba(0, 0, 0, .42);
  transform: translateX(100%);
  transition: transform .22s ease;
}

.toc-panel.open { transform: translateX(0); }

.toc-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.toc-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.toc-subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: .82rem;
}

.toc-close {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
}

.toc-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.toc-section { padding: 8px 0; }
.toc-section + .toc-section { border-top: 1px solid rgba(255, 255, 255, .06); }

.toc-section-title {
  margin: 0;
  padding: 8px 18px;
  font-size: .72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent-2);
  position: sticky;
  top: 0;
  background: rgba(7, 12, 20, .96);
  z-index: 1;
}

.toc-questions {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-q-btn {
  display: flex;
  width: 100%;
  align-items: baseline;
  gap: 9px;
  padding: 10px 18px;
  color: var(--text);
  text-decoration: none;
  font-size: .85rem;
  line-height: 1.35;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
}

.toc-q-btn:hover {
  background: rgba(255, 255, 255, .06);
  color: var(--accent-2);
}

.toc-q-num {
  color: var(--muted);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: .76rem;
  flex-shrink: 0;
  min-width: 22px;
  text-align: center;
}

.toc-q-prompt {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.toc-footer {
  padding: 10px 18px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  color: var(--muted);
  font-size: .75rem;
}

.toc-footer kbd {
  display: inline-block;
  padding: 1px 6px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 4px;
  color: var(--text);
  font-size: .72rem;
  font-family: ui-monospace, Menlo, monospace;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .hero-arrow { animation: none; }
}

@media (max-width: 720px) {
  .catalog-controls {
    grid-template-columns: 1fr;
  }
  .info-steps li { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .hero { padding: 40px 0 32px; }
  .hero-inner { gap: 22px; }
  .brand-block { padding: 12px 14px; }
  .app-card { padding: 18px; }
  .app-card-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   APPLE LIQUID GLASS — typography, nav, glass surfaces
   macOS Tahoe / iOS 26 / iPadOS 26 / visionOS 26
   ============================================================ */

body {
  font-family:
    -apple-system, BlinkMacSystemFont,
    "SF Pro Text", "SF Pro Display", "SF Pro",
    "Inter",
    "Segoe UI", Roboto, Helvetica, Arial,
    ui-sans-serif, system-ui, sans-serif;
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
}

@supports (font-variation-settings: normal) {
  body {
    font-family:
      "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont,
      "Inter var", "Inter",
      ui-sans-serif, system-ui, sans-serif;
  }
}

h1, h2, h3, h4, h5, h6 {
  font-family:
    "SF Pro Display", -apple-system, BlinkMacSystemFont,
    "Inter", ui-sans-serif, system-ui, sans-serif;
  letter-spacing: -0.01em;
}

/* Bigger touch targets */
button, a, [role="button"], input[type="checkbox"], input[type="radio"] {
  min-height: 44px;
}
.toc-q-btn, .filter-btn, .footer-col a, .globalnav-links a {
  min-height: auto;
}

/* Visible focus ring — Apple style */
:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: var(--r-sm);
  box-shadow:
    0 0 0 4px color-mix(in oklab, var(--accent-2) 28%, transparent);
  transition: box-shadow var(--dur-fast) var(--ease-spring);
}

/* ============================================================
   GLOBAL NAV — sticky liquid glass top bar
   ============================================================ */
.globalnav {
  position: sticky;
  top: var(--safe-top);
  z-index: 60;
  width: 100%;
  padding: 10px 0;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--bg) 78%, transparent) 0%,
    color-mix(in oklab, var(--bg) 50%, transparent) 100%);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border-bottom: 1px solid var(--hairline);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
}

.globalnav-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.globalnav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 6px 10px;
  border-radius: var(--r-md);
  transition: background var(--dur-fast) var(--ease-spring);
}
.globalnav-brand:hover { background: var(--glass-tint); }
.globalnav-mark {
  display: inline-grid;
  place-items: center;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06110b;
  font-weight: 900;
  font-size: 0.95rem;
  box-shadow: 0 4px 14px rgba(57, 217, 138, 0.4);
}
.globalnav-name { font-size: 1.02rem; }
.globalnav-sub { color: var(--muted); font-weight: 500; font-size: 0.9em; }

.globalnav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.globalnav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  color: var(--text);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  transition:
    background var(--dur-fast) var(--ease-spring),
    color var(--dur-fast) var(--ease-spring);
}
.globalnav-links a:hover {
  background: var(--glass-tint);
  color: var(--accent);
}
.globalnav-dashboard {
  background: color-mix(in oklab, var(--accent) 18%, transparent);
  color: var(--accent) !important;
  font-weight: 700 !important;
}
.globalnav-dashboard:hover {
  background: color-mix(in oklab, var(--accent) 28%, transparent) !important;
}

@media (max-width: 720px) {
  .globalnav-inner { gap: 8px; }
  .globalnav-name { display: none; }
  .globalnav-mark { width: 30px; height: 30px; }
  .globalnav-links { gap: 2px; }
  .globalnav-links a { padding: 8px 10px; font-size: 0.88rem; }
}

/* ============================================================
   TEACHERS CALLOUT — descubrir el dashboard desde la landing
   ============================================================ */
.teachers-callout {
  position: relative;
  z-index: 1;
  margin: 56px auto 24px;
  width: min(1180px, calc(100% - 32px));
  border-radius: var(--r-xl);
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--accent) 20%, transparent),
    color-mix(in oklab, var(--accent-2) 14%, transparent) 60%,
    color-mix(in oklab, var(--accent-3) 14%, transparent));
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow);
  overflow: hidden;
  isolation: isolate;
}
.teachers-callout::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(255, 255, 255, 0.18), transparent 40%),
    radial-gradient(ellipse at 90% 110%, rgba(0, 0, 0, 0.25), transparent 50%);
  z-index: -1;
}
.teachers-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: center;
  padding: 32px 36px;
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}
.teachers-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.15);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.teachers-title {
  margin: 0 0 8px;
  font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.teachers-copy p {
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.55;
  font-size: 0.98rem;
}
.teachers-copy code {
  background: rgba(0, 0, 0, 0.28);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.9em;
  border: 1px solid var(--hairline);
}
.teachers-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.teachers-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition:
    transform var(--dur-fast) var(--ease-spring),
    box-shadow var(--dur-fast) var(--ease-spring),
    background var(--dur-fast) var(--ease-spring);
  border: 1px solid transparent;
}
.teachers-btn-primary {
  background: var(--text);
  color: var(--bg);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28);
}
.teachers-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.34);
}
.teachers-btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.22);
}
.teachers-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 600px) {
  .teachers-inner {
    grid-template-columns: 1fr;
    padding: 24px 22px;
    text-align: left;
  }
  .teachers-icon {
    width: 52px; height: 52px;
  }
}

/* ============================================================
   FOOTER GRID — 4 columnas con links útiles
   ============================================================ */
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 22px;
}
.footer-col h3, .footer-col h4 {
  margin: 0 0 12px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.footer-col a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.94rem;
  transition: color var(--dur-fast) var(--ease-spring);
}
.footer-col a:hover { color: var(--accent); }
.footer-brand-sub {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-col-brand { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   GLOBAL POLISH — squircle radii on existing elements
   ============================================================ */
.app-card {
  border-radius: var(--r-lg);
  transition:
    transform var(--dur-base) var(--ease-spring),
    box-shadow var(--dur-base) var(--ease-spring),
    border-color var(--dur-base) var(--ease-spring);
}
.app-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}
.filter-btn { border-radius: var(--r-pill); transition: all var(--dur-fast) var(--ease-spring); }
.toc-fab { border-radius: var(--r-pill); }
.toc-panel { border-radius: var(--r-xl) 0 0 var(--r-xl); }
.welcome-inner { border-radius: var(--r-xl); }

/* visionOS-friendly hover: scale slightly up on focus to feel spatial */
@media (hover: hover) and (pointer: fine) {
  .app-card:hover,
  .teachers-btn:hover,
  .welcome-cta:hover {
    transform: translateY(-2px) scale(1.01);
  }
}

/* Reduced motion respect */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print stylesheet */
@media print {
  .globalnav, .toc-fab, .toc-panel, #bio-canvas, .hero-arrow, .welcome-cta { display: none !important; }
  body { background: white; color: black; }
  .app-card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
}