/* CLI Market Academy — Optimus visual language + Academy content */
:root {
  --background: #faf9f7;
  --foreground: #14120f;
  --card: #ffffff;
  --muted: #f0eeea;
  --muted-foreground: #6b6560;
  --border-strong: rgba(20, 18, 15, 0.12);
  --radius: 0.25rem;
  --font-sans: "Instrument Sans", system-ui, sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --max: 1400px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
strong { font-weight: 600; }
.font-mono { font-family: var(--font-mono); }

/* Noise overlay (Optimus) */
.noise-overlay { position: relative; }
.noise-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 1;
}
.noise-overlay > * { position: relative; z-index: 2; }

.wrap {
  width: min(100% - 3rem, var(--max));
  margin-inline: auto;
}
@media (min-width: 1024px) {
  .wrap { width: min(100% - 6rem, var(--max)); }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted-foreground);
  margin-bottom: 1.25rem;
}
.eyebrow::before {
  content: "";
  width: 2rem;
  height: 1px;
  background: rgba(20, 18, 15, 0.3);
}

/* Buttons — Optimus pills */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 1rem;
  border-radius: 9999px;
  padding: 0 2rem;
  height: 3.5rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn-primary { background: var(--foreground); color: var(--background); }
.btn-primary:hover { background: rgba(20, 18, 15, 0.88); }
.btn-primary .arrow { transition: transform 0.2s; }
.btn-primary:hover .arrow { transform: translateX(3px); }
.btn-outline {
  background: transparent;
  color: var(--foreground);
  border: 1px solid rgba(20, 18, 15, 0.2);
}
.btn-outline:hover { background: rgba(20, 18, 15, 0.04); }
.btn-sm { height: 2.25rem; padding: 0 1.25rem; font-size: 0.8125rem; }
.btn-block { width: 100%; }

.hover-lift {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.hover-lift:hover { transform: translateY(-4px); }

/* Char-in (Optimus) */
@keyframes char-in {
  from { opacity: 0; filter: blur(40px); transform: translateY(100%); }
  to { opacity: 1; filter: blur(0); transform: translateY(0); }
}
.char {
  display: inline-block;
  animation: char-in 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  opacity: 0;
}

@keyframes lineReveal {
  to { opacity: 1; transform: translateX(0); }
}
@keyframes charReveal {
  to { opacity: 1; filter: blur(0); }
}
@keyframes progress {
  from { width: 0%; }
  to { width: 100%; }
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes marquee-reverse {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@keyframes fade-slide-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes tab-ink {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* NAV */
.site-header {
  position: fixed;
  z-index: 50;
  transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  top: 0; left: 0; right: 0;
}
.site-header.is-scrolled { top: 1rem; left: 1rem; right: 1rem; }
.nav-shell {
  margin-inline: auto;
  max-width: var(--max);
  transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.site-header.is-scrolled .nav-shell {
  max-width: 1200px;
  background: rgba(250, 249, 247, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-strong);
  border-radius: 1rem;
  box-shadow: 0 12px 40px rgba(20, 18, 15, 0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 5rem;
  transition: height 0.4s;
}
.site-header.is-scrolled .nav-inner { height: 3.5rem; }
.logo { display: flex; align-items: baseline; gap: 0.4rem; }
.logo-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  transition: font-size 0.4s;
}
.site-header.is-scrolled .logo-name { font-size: 1.25rem; }
.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
@media (min-width: 900px) { .nav-links { display: flex; } }
.nav-links a {
  font-size: 0.875rem;
  color: rgba(20, 18, 15, 0.7);
  position: relative;
}
.nav-links a:hover { color: var(--foreground); }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 1px;
  background: var(--foreground);
  transition: width 0.3s;
}
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: none; align-items: center; gap: 1rem; }
@media (min-width: 900px) { .nav-cta { display: flex; } }
.nav-cta .ghost { font-size: 0.875rem; color: rgba(20, 18, 15, 0.7); }
.menu-btn { display: flex; padding: 0.5rem; }
@media (min-width: 900px) { .menu-btn { display: none; } }
.menu-btn svg { width: 1.5rem; height: 1.5rem; }

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--background);
  z-index: 40;
  display: flex;
  flex-direction: column;
  padding: 7rem 2rem 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a.big {
  font-family: var(--font-display);
  font-size: 2.75rem;
  line-height: 1.15;
  margin-bottom: 0.35rem;
}
.mobile-menu .bottom {
  margin-top: auto;
  display: flex;
  gap: 0.75rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-strong);
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: 8rem 0 11rem;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
}
.hero-grid-bg .h-line,
.hero-grid-bg .v-line {
  position: absolute;
  background: rgba(20, 18, 15, 0.1);
}
.hero-grid-bg .h-line { left: 0; right: 0; height: 1px; }
.hero-grid-bg .v-line { top: 0; bottom: 0; width: 1px; }

.hero-sphere {
  position: absolute;
  right: -8%;
  top: 50%;
  transform: translateY(-50%);
  width: min(95vw, 720px);
  height: min(95vw, 720px);
  opacity: 0.42;
  pointer-events: none;
}
.hero-sphere canvas { width: 100%; height: 100%; display: block; }

.hero-content { position: relative; z-index: 2; }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8.5vw, 6.75rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin-bottom: 2.25rem;
  max-width: 18ch;
}
.hero .h1-line { display: block; }
/* Keep “Aprenda a [verbo]” on one line when space allows */
.hero .h1-line-top {
  white-space: nowrap;
}
@media (max-width: 420px) {
  .hero .h1-line-top { white-space: normal; }
  .hero h1 { max-width: none; font-size: clamp(2.15rem, 11vw, 3rem); }
}
.word-slot {
  position: relative;
  display: inline-block;
  min-width: 9.5ch;
  text-align: left;
}
.word-underline {
  position: absolute;
  left: 0; right: 0;
  bottom: 0.05em;
  height: 0.16em;
  background: rgba(20, 18, 15, 0.1);
  transform-origin: left center;
  animation: underline-pulse 2.6s ease-in-out infinite;
}
@keyframes underline-pulse {
  0%, 100% { transform: scaleX(1); opacity: 1; }
  45% { transform: scaleX(0.92); opacity: 0.7; }
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 1.1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted-foreground);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.6s 1s, transform 0.6s;
}
.scroll-cue.in { opacity: 0.7; }
.scroll-cue .mouse {
  width: 1.15rem;
  height: 1.85rem;
  border: 1px solid rgba(20, 18, 15, 0.25);
  border-radius: 9999px;
  position: relative;
}
.scroll-cue .mouse i {
  position: absolute;
  top: 0.35rem;
  left: 50%;
  width: 0.2rem;
  height: 0.35rem;
  margin-left: -0.1rem;
  border-radius: 9999px;
  background: rgba(20, 18, 15, 0.45);
  animation: scroll-dot 1.6s ease-in-out infinite;
}
@keyframes scroll-dot {
  0% { opacity: 1; transform: translateY(0); }
  70% { opacity: 0; transform: translateY(0.55rem); }
  100% { opacity: 0; transform: translateY(0.55rem); }
}
@media (max-width: 700px) {
  .scroll-cue { display: none; }
}

.hero-bottom {
  display: grid;
  gap: 1.5rem;
  align-items: end;
  width: 100%;
  max-width: min(100%, 72rem);
}
@media (min-width: 900px) {
  .hero-bottom {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2.5rem 3rem;
  }
}
.hero-lead {
  font-size: clamp(1.05rem, 1.55vw, 1.28rem);
  color: var(--muted-foreground);
  line-height: 1.45;
  max-width: 34rem;
  text-wrap: pretty;
}
.hero-lead strong { color: var(--foreground); font-weight: 500; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
  align-items: center;
}
@media (max-width: 899px) {
  .hero-actions {
    justify-content: flex-end;
    width: 100%;
  }
}

.hero-fade {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.hero-fade.in { opacity: 1; transform: translateY(0); }

/* Marquee */
.marquee-wrap {
  position: absolute;
  bottom: 3.5rem;
  left: 0; right: 0;
  overflow: hidden;
  z-index: 2;
}
.marquee {
  display: flex;
  width: max-content;
  animation: marquee 45s linear infinite;
}
.marquee-track {
  display: flex;
  gap: 3.5rem;
  padding-right: 3.5rem;
}
.marquee-item {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  white-space: nowrap;
}
.marquee-item .val {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
}
.marquee-item .meta {
  font-size: 0.8rem;
  color: var(--muted-foreground);
}
.marquee-item .meta small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  margin-top: 0.15rem;
  letter-spacing: 0.04em;
}

/* Sections */
section.block { padding: 5.5rem 0; }
@media (min-width: 1024px) { section.block { padding: 7rem 0; } }
section.alt { background: var(--muted); }

.section-h2 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin-bottom: 0.85rem;
}
.section-h2 .dim { opacity: 0.45; }
.muted {
  color: var(--muted-foreground);
  font-size: 1.05rem;
  max-width: 36rem;
  line-height: 1.6;
}

.door-help {
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted-foreground);
}
.door-help button {
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  color: var(--foreground);
}

.quiz {
  display: none;
  margin-top: 1.5rem;
  border: 1px solid var(--border-strong);
  padding: 1.5rem;
  background: var(--card);
}
.quiz.open { display: block; }
.quiz h4 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 1rem;
}
.quiz-q { margin-bottom: 1rem; }
.quiz-q p { font-size: 0.9rem; font-weight: 500; margin-bottom: 0.5rem; }
.quiz-opts { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.quiz-opts button {
  border: 1px solid var(--border-strong);
  border-radius: 9999px;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}
.quiz-opts button.selected,
.quiz-opts button:hover {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}
.quiz-result {
  display: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-strong);
}
.quiz-result.show { display: block; }

/* Outcomes + facts */
.outcome-grid {
  display: grid;
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  margin-top: 2.5rem;
}
@media (min-width: 800px) { .outcome-grid { grid-template-columns: 1fr 1fr; } }
.outcome {
  background: var(--background);
  padding: 2rem 1.75rem;
}
.outcome .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  margin-bottom: 0.75rem;
}
.outcome h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  margin-bottom: 1rem;
}
.outcome ul {
  padding-left: 1.1rem;
  color: var(--muted-foreground);
  font-size: 0.95rem;
}
.outcome li { margin-bottom: 0.4rem; }
.outcome { position: relative; overflow: hidden; }
.outcome-visual {
  justify-content: flex-end;
  opacity: 0.4;
  margin-top: 1rem;
  pointer-events: none;
}
.outcome-visual .viz { width: 6rem; height: 5rem; }

.facts {
  display: grid;
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  margin-top: 2rem;
}
@media (min-width: 700px) { .facts { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .facts { grid-template-columns: repeat(4, 1fr); } }
.fact {
  background: var(--background);
  padding: 1.4rem 1.2rem;
}
.fact .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  margin-bottom: 0.45rem;
}
.fact .v {
  font-family: var(--font-display);
  font-size: 1.3rem;
}
.fact .s {
  font-size: 0.82rem;
  color: var(--muted-foreground);
  margin-top: 0.3rem;
}
.next-soft {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--muted-foreground);
  max-width: 40rem;
  line-height: 1.55;
}
.next-soft strong { color: var(--foreground); }

/* Tracks */
.track-tabs {
  display: flex;
  gap: 0.35rem;
  padding: 0.3rem;
  background: rgba(20, 18, 15, 0.06);
  border-radius: 9999px;
  width: fit-content;
  margin: 2rem 0 1.5rem;
}
.track-tab {
  padding: 0.55rem 1.2rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: background 0.25s, color 0.25s;
}
.track-tab.active {
  background: var(--foreground);
  color: var(--background);
}
.track-panel {
  display: none;
  opacity: 0;
}
.track-panel.active {
  display: block;
  animation: fade-slide-in 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.track-layout {
  display: grid;
  gap: 2rem;
  border: 1px solid var(--border-strong);
  padding: 1.75rem;
  background: var(--card);
}
@media (min-width: 900px) {
  .track-layout {
    grid-template-columns: 1.05fr 0.95fr;
    padding: 2.25rem 2.5rem;
  }
}
.track-h {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 400;
  margin-bottom: 0.35rem;
}
.method-human {
  color: var(--muted-foreground);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}
.method-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  margin: 0.75rem 0 1rem;
}
.method-flow span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-strong);
  background: var(--muted);
}
.method-flow .arr {
  border: none;
  background: none;
  color: var(--muted-foreground);
  padding: 0;
}
.method-seal-line {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  margin-bottom: 1.25rem;
}
.syllabus {
  list-style: none;
  border: 1px solid var(--border-strong);
}
.syllabus li {
  display: grid;
  grid-template-columns: 2.4rem 1fr auto;
  gap: 0.65rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--border-strong);
  font-size: 0.88rem;
  transition: background 0.25s;
  cursor: pointer;
  text-align: left;
  width: 100%;
  background: transparent;
  align-items: start;
}
.syllabus li:hover { background: var(--muted); }
.syllabus li.open { background: var(--muted); }
.syllabus li:last-child { border-bottom: none; }
.syllabus .n {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted-foreground);
  padding-top: 0.15rem;
}
.syllabus .mod-title { display: block; font-weight: 500; }
.syllabus .mod-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--muted-foreground);
  margin-top: 0.15rem;
  line-height: 1.4;
}
.syllabus .mod-chev {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  transition: transform 0.25s;
  padding-top: 0.15rem;
}
.syllabus li.open .mod-chev { transform: rotate(180deg); }
.syllabus .mod-extra {
  display: none;
  margin-top: 0.55rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border-strong);
  background: var(--card);
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--muted-foreground);
}
.syllabus li.open .mod-extra { display: block; }
.syllabus .mod-extra strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--foreground);
  margin-bottom: 0.3rem;
  font-weight: 500;
}
.syllabus-hint {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted-foreground);
}

/* Method steps — collapsed by default (journey) */
.method-details {
  margin: 0 0 1.25rem;
  border: 1px solid var(--border-strong);
  background: var(--muted);
  border-radius: var(--radius);
}
/* Generic accordion body padding — used by the #metodo mega-section
   accordions, whose content used to sit inside a padded .wrap and now
   sits directly inside <details> with nothing providing horizontal
   padding. */
.acc-body {
  padding: 1rem 1.1rem 1.25rem;
}
.method-details summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  user-select: none;
  transition: background 0.2s;
}
.method-details summary::-webkit-details-marker { display: none; }
.method-details summary:hover { background: rgba(20, 18, 15, 0.04); }
.method-details-chev {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  transition: transform 0.25s;
}
.method-details[open] .method-details-chev { transform: rotate(180deg); }
.method-details[open] summary {
  border-bottom: 1px solid var(--border-strong);
}
.method-steps {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 0.85rem 0.9rem;
}
/* .method-flow moved inside <details> (SIRI/DDM now collapsible together with
   the elaborated steps) — it used to sit directly under .method-human with
   its own margin; now it's the first thing inside the accordion box, so it
   needs the box's own left/right padding instead of flush edges. */
.method-details .method-flow {
  margin: 0;
  padding: 0.85rem 0.85rem 0;
}
.method-step {
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 0.65rem 0.75rem;
}
.method-step .ms-step {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  display: block;
  margin-bottom: 0.15rem;
}
.method-step .ms-title {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.method-step .ms-desc {
  font-size: 0.78rem;
  color: var(--muted-foreground);
  line-height: 1.4;
}
@media (prefers-reduced-motion: reduce) {
  .method-details-chev { transition: none; }
}

/* Artifact */
.artifact-layout {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
@media (min-width: 900px) {
  .artifact-layout { grid-template-columns: 1fr 1fr; }
}
.artifact-example { display: flex; flex-direction: column; gap: 1rem; }
.artifact-example-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-foreground);
}
.artifact-card {
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.5rem;
}
.artifact-card .head {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.artifact-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}
.artifact-card .line {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  margin-bottom: 0.45rem;
}
.artifact-card .line strong { color: var(--foreground); font-weight: 500; }
.artifact-card .disclaimer {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted-foreground);
}
.artifact-card .disclaimer a {
  color: var(--foreground);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}
.before-after { border: 1px solid var(--border-strong); }
.ba-row {
  padding: 1.25rem 1.35rem;
  border-bottom: 1px solid var(--border-strong);
}
.ba-row:last-child { border-bottom: none; }
.ba-row.after { background: var(--muted); }
.ba-row .label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  margin-bottom: 0.35rem;
}

/* How it works */
.how-it-works { position: relative; overflow: hidden; }
.how-grid {
  display: grid;
  gap: 3rem;
  margin-top: 3rem;
}
@media (min-width: 1000px) {
  .how-grid { grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
}
.how-step {
  width: 100%;
  text-align: left;
  padding: 1.75rem 0;
  border-bottom: 1px solid rgba(250, 249, 247, 0.1);
  opacity: 0.4;
  transition: opacity 0.4s;
}
.how-step:hover,
.how-step.active { opacity: 1; }
.how-step-inner {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.how-step .roman {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: rgba(250, 249, 247, 0.3);
  line-height: 1;
}
.how-step h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 0.4rem;
  transition: transform 0.3s;
}
.how-step:hover h3,
.how-step.active h3 { transform: translateX(6px); }
.how-step p {
  font-size: 0.925rem;
  color: rgba(250, 249, 247, 0.55);
  line-height: 1.55;
}
.how-progress {
  margin-top: 1rem;
  height: 1px;
  background: rgba(250, 249, 247, 0.15);
  overflow: hidden;
}
.how-progress > i {
  display: block;
  height: 100%;
  width: 0;
  background: rgba(250, 249, 247, 0.85);
}
.how-step.active .how-progress > i {
  animation: progress 5s linear forwards;
}

.how-code-wrap { position: sticky; top: 6rem; }
.how-code {
  border: 1px solid rgba(250, 249, 247, 0.12);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
}
.how-code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid rgba(250, 249, 247, 0.1);
}
.how-code-bar .dots { display: flex; gap: 0.4rem; }
.how-code-bar .dots span {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: rgba(250, 249, 247, 0.2);
}
.how-code-name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(250, 249, 247, 0.4);
}
.how-code-body {
  padding: 1.75rem 1.5rem;
  min-height: 280px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.85;
  color: rgba(250, 249, 247, 0.75);
  white-space: pre-wrap;
}
.how-code-body .ln {
  color: rgba(250, 249, 247, 0.2);
  display: inline-block;
  width: 1.75rem;
  user-select: none;
}
.how-code-body .line {
  opacity: 0;
  transform: translateX(-8px);
  animation: lineReveal 0.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.how-code-body .c {
  opacity: 0;
  filter: blur(8px);
  animation: charReveal 0.3s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  display: inline-block;
}
.how-code-body .tok-comment { color: rgba(148, 163, 184, 0.85); }
.how-code-body .tok-cmd { color: rgba(125, 211, 252, 0.95); }
.how-code-body .tok-flag { color: rgba(167, 243, 208, 0.9); }
.how-code-body .tok-str { color: rgba(253, 224, 171, 0.95); }
.how-code-body .tok-key { color: rgba(196, 181, 253, 0.95); }
.how-code-status {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1.25rem;
  border-top: 1px solid rgba(250, 249, 247, 0.1);
  font-size: 0.72rem;
  color: rgba(250, 249, 247, 0.4);
}
.how-code-status .pulse {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 1.4s ease-in-out infinite;
}

/* Metrics */
.metrics-big {
  display: grid;
  gap: 2.5rem 1.5rem;
  margin-top: 3rem;
}
@media (min-width: 700px) { .metrics-big { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .metrics-big { grid-template-columns: repeat(4, 1fr); } }
.metric-big .num {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.metric-big .label {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}
/* ——— Pipeline (ecosystem brief) ——— */
.pipeline-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.65rem;
  margin-top: 2.5rem;
  justify-content: center;
}
.pipeline-stage {
  flex: 1 1 10rem;
  min-width: 9.5rem;
  max-width: 14rem;
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.15rem 1rem;
  transition: border-color 0.3s, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.pipeline-stage:hover {
  border-color: rgba(20, 18, 15, 0.28);
  transform: translateY(-3px);
}
.pipeline-stage .pk {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  display: block;
  margin-bottom: 0.4rem;
}
.pipeline-stage h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 0.4rem;
}
.pipeline-stage p {
  font-size: 0.8rem;
  color: var(--muted-foreground);
  line-height: 1.45;
}
.pipeline-arrow {
  display: none;
  align-self: center;
  font-family: var(--font-mono);
  color: var(--muted-foreground);
  font-size: 1.1rem;
  flex: 0 0 auto;
}
@media (min-width: 900px) {
  .pipeline-arrow { display: block; }
  .pipeline-flow { flex-wrap: nowrap; }
}

/* Pipeline demo log (SIMULACIÓN) */
.pipe-log {
  margin-top: 2.5rem;
  border: 1px solid var(--foreground);
  background: var(--foreground);
  color: var(--background);
  overflow: hidden;
  max-width: 52rem;
  margin-inline: auto;
}
.pipe-log-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(250, 249, 247, 0.12);
  background: rgba(255, 255, 255, 0.04);
}
.pipe-log-bar .dots { display: flex; gap: 0.35rem; }
.pipe-log-bar .dots span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: rgba(250, 249, 247, 0.25);
}
.pipe-log-name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: rgba(250, 249, 247, 0.45);
  flex: 1;
}
.pipe-log-badge {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border: 1px solid rgba(250, 249, 247, 0.2);
  color: rgba(250, 249, 247, 0.7);
}
.pipe-log-body {
  margin: 0;
  padding: 1.1rem 1.15rem;
  min-height: 11rem;
  max-height: 14rem;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.7;
  color: rgba(250, 249, 247, 0.78);
  white-space: pre-wrap;
}
.pipe-log-body .log-line { display: block; opacity: 0; animation: fade-slide-in 0.35s ease forwards; }
.pipe-log-body .log-line.ok { color: rgba(167, 243, 208, 0.9); }
.pipe-log-body .log-line.work { color: rgba(253, 224, 171, 0.9); }
.pipe-log-body .log-line.dim { color: rgba(250, 249, 247, 0.45); }
.pipe-log-note {
  margin: 0;
  padding: 0.65rem 1.1rem 0.85rem;
  border-top: 1px solid rgba(250, 249, 247, 0.1);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(250, 249, 247, 0.4);
  line-height: 1.4;
}
@media (prefers-reduced-motion: reduce) {
  .pipe-log-body .log-line { animation: none; opacity: 1; }
}

/* ——— MCP cards ——— */
.mcp-grid {
  display: grid;
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  margin-top: 2.5rem;
}
@media (min-width: 800px) { .mcp-grid { grid-template-columns: repeat(3, 1fr); } }
.mcp-card {
  background: var(--card);
  padding: 1.5rem 1.35rem;
  transition: background 0.25s;
}
.mcp-card:hover { background: var(--muted); }
.mcp-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}
.mcp-card p {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  line-height: 1.55;
}
.mcp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* MCP schema explorer */
/* ——— Moat pillars ——— */
.pillars-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}
@media (min-width: 900px) { .pillars-grid { grid-template-columns: repeat(3, 1fr); } }
.pillar-card {
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.5rem 1.35rem;
  transition: border-color 0.3s, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.pillar-card:hover {
  border-color: rgba(20, 18, 15, 0.28);
  transform: translateY(-3px);
}
.pillar-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.pillar-top .pn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted-foreground);
}
.pillar-accent {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.45rem;
  border: 1px solid var(--border-strong);
  background: var(--muted);
}
.pillar-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  display: block;
  margin-bottom: 0.35rem;
}
.pillar-card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  margin-bottom: 0.65rem;
}
.pillar-card p {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  line-height: 1.55;
}

/* ——— Workbook + rubric ——— */
.wb-grid {
  display: grid;
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  margin-top: 2rem;
}
@media (min-width: 700px) { .wb-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .wb-grid { grid-template-columns: repeat(4, 1fr); } }
.wb-card {
  background: var(--card);
  padding: 1.25rem 1.15rem;
}
.wb-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
}
.wb-card h3::before {
  content: "✓";
  color: #16a34a;
  font-size: 0.8rem;
  margin-top: 0.1rem;
}
.wb-card p {
  font-size: 0.82rem;
  color: var(--muted-foreground);
  line-height: 1.45;
}
.rubric-block {
  margin-top: 2.5rem;
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.75rem 1.5rem;
}
.rubric-head h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
}
.rubric-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
@media (min-width: 800px) { .rubric-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .rubric-grid { grid-template-columns: repeat(4, 1fr); } }
.rubric-item {
  border: 1px solid var(--border-strong);
  padding: 1rem 0.9rem;
  background: var(--muted);
}
.rubric-item .rp {
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1;
  margin-bottom: 0.4rem;
}
.rubric-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.rubric-item p {
  font-size: 0.78rem;
  color: var(--muted-foreground);
  line-height: 1.4;
}

/* ——— Mid-page lattice canvas (pair to hero sphere + CTA tetra) ——— */
/* ——— Multi-lente roles (AI Studio) ——— */
.role-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2rem 0 1.5rem;
  justify-content: flex-start;
}
.role-tab {
  padding: 0.55rem 1rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  background: var(--card);
  color: var(--muted-foreground);
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s;
}
.role-tab:hover {
  border-color: rgba(20, 18, 15, 0.28);
  color: var(--foreground);
}
.role-tab.active {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}
.role-panel {
  display: grid;
  gap: 1.5rem;
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.75rem;
}
@media (min-width: 900px) {
  .role-panel {
    grid-template-columns: 1.2fr 0.9fr;
    padding: 2.25rem 2.5rem;
    gap: 2.5rem;
    align-items: start;
  }
}
.role-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.role-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border-strong);
  background: var(--muted);
}
.role-meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.role-main h3 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 400;
  margin-bottom: 0.75rem;
  line-height: 1.15;
}
.role-desc {
  color: var(--muted-foreground);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.role-tip {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-strong);
  background: var(--muted);
}
.role-tip-mark {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-mono);
  border: 1px solid var(--border-strong);
  background: var(--card);
}
.role-tip strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}
.role-tip p {
  font-size: 0.85rem;
  color: var(--muted-foreground);
  line-height: 1.5;
}
.role-example {
  border: 1px solid var(--border-strong);
  background: var(--muted);
  padding: 1.25rem;
}
.role-example-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-foreground);
  margin-bottom: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border-strong);
}
.role-example p {
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--foreground);
  margin-bottom: 1rem;
}
.role-example-ok {
  font-size: 0.75rem;
  color: var(--muted-foreground);
  font-family: var(--font-mono);
}
.role-example-ok::before {
  content: "✓ ";
  color: #16a34a;
}

/* ——— Lab terminal (AI Studio) ——— */
.lab-layout {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 1000px) {
  .lab-layout { grid-template-columns: 1fr 1.05fr; gap: 3.5rem; }
}
.lab-bullets {
  margin-top: 1.25rem;
  padding-left: 1.1rem;
  color: var(--muted-foreground);
  font-size: 0.925rem;
  line-height: 1.65;
}
.lab-bullets li { margin-bottom: 0.4rem; }
.lab-bullets strong { color: var(--foreground); font-weight: 500; }
.lab-terminal {
  border: 1px solid var(--foreground);
  background: var(--foreground);
  color: var(--background);
  overflow: hidden;
}
.lab-term-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid rgba(250, 249, 247, 0.12);
  background: rgba(255, 255, 255, 0.04);
}
.lab-term-bar .dots { display: flex; gap: 0.35rem; }
.lab-term-bar .dots span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: rgba(250, 249, 247, 0.25);
}
.lab-term-name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: rgba(250, 249, 247, 0.45);
  flex: 1;
}
.lab-term-badge {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border: 1px solid rgba(250, 249, 247, 0.2);
  color: rgba(250, 249, 247, 0.65);
}
.lab-term-body {
  padding: 1.25rem 1.25rem;
  min-height: 240px;
  max-height: 320px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.65;
  color: rgba(250, 249, 247, 0.78);
  white-space: pre-wrap;
  margin: 0;
}
.lab-term-status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.65rem 1.15rem;
  border-top: 1px solid rgba(250, 249, 247, 0.1);
  font-size: 0.7rem;
  color: rgba(250, 249, 247, 0.5);
}
.lab-term-status[hidden] { display: none; }
.lab-term-status .pulse {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 1.2s ease-in-out infinite;
}
.lab-term-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  border-top: 1px solid rgba(250, 249, 247, 0.12);
  background: rgba(255, 255, 255, 0.04);
}
.lab-term-hint {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(250, 249, 247, 0.4);
}
.lab-term-btns { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.lab-cmd {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.4rem 0.7rem;
  border: 1px solid rgba(250, 249, 247, 0.18);
  border-radius: 0.35rem;
  color: rgba(250, 249, 247, 0.85);
  background: rgba(250, 249, 247, 0.06);
  transition: background 0.2s, border-color 0.2s, opacity 0.2s;
}
.lab-cmd:hover:not(:disabled) {
  background: rgba(250, 249, 247, 0.12);
  border-color: rgba(250, 249, 247, 0.35);
}
.lab-cmd:disabled { opacity: 0.4; cursor: not-allowed; }
.lab-cmd.active {
  background: rgba(250, 249, 247, 0.16);
  border-color: rgba(250, 249, 247, 0.45);
}

/* ——— Pedagogy grid (AI Studio) ——— */
.pedagogy-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}
@media (min-width: 640px) { .pedagogy-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .pedagogy-grid { grid-template-columns: repeat(5, 1fr); } }
.ped-card {
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.25rem 1.15rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.ped-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: rgba(20, 18, 15, 0.12);
  transition: background 0.3s;
}
.ped-card:hover {
  border-color: rgba(20, 18, 15, 0.28);
  transform: translateY(-3px);
}
.ped-card:hover::before { background: var(--foreground); }
.ped-card .n {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  opacity: 0.12;
  margin-bottom: 0.5rem;
}
.ped-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.ped-card p {
  font-size: 0.8rem;
  color: var(--muted-foreground);
  line-height: 1.5;
}

/* #pedagogia's micro-cycle now lives inside #how-it-works' <details> (dark
   .invert section) — .method-details/.ped-card default to the light-mode
   tokens above, so override to the same dark-card treatment .how-code
   already uses in this section. */
.how-it-works .method-details {
  border-color: rgba(250, 249, 247, 0.14);
  background: rgba(0, 0, 0, 0.2);
}
.how-it-works .method-details summary:hover { background: rgba(250, 249, 247, 0.06); }
.how-it-works .method-details[open] summary { border-bottom-color: rgba(250, 249, 247, 0.14); }
.how-it-works .method-details-chev { color: rgba(250, 249, 247, 0.5); }
.how-it-works .ped-card {
  border-color: rgba(250, 249, 247, 0.14);
  background: rgba(255, 255, 255, 0.04);
}
.how-it-works .ped-card::before { background: rgba(250, 249, 247, 0.14); }
.how-it-works .ped-card:hover { border-color: rgba(250, 249, 247, 0.32); }
.how-it-works .ped-card:hover::before { background: rgba(250, 249, 247, 0.6); }
.how-it-works .ped-card p { color: rgba(250, 249, 247, 0.6); }
.how-it-works .muted { color: rgba(250, 249, 247, 0.55); }
/* ——— Semáforo sandbox (AI Studio) ——— */
.sem-layout {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}
@media (min-width: 1000px) {
  .sem-layout { grid-template-columns: 1.05fr 0.95fr; gap: 3rem; }
}
.sem-controls {
  margin-top: 1.75rem;
  border: 1px solid var(--border-strong);
  background: var(--card);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}
.sem-field-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.45rem;
}
.sem-field label {
  font-size: 0.9rem;
  font-weight: 500;
}
.sem-val {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
}
.sem-field input[type="range"] {
  width: 100%;
  accent-color: var(--foreground);
  height: 0.35rem;
  cursor: pointer;
}
.sem-hint {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.72rem;
  color: var(--muted-foreground);
  font-family: var(--font-mono);
  line-height: 1.4;
}
.sem-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-strong);
}
.sem-toggle-label {
  font-size: 0.9rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.2rem;
}
.switch {
  position: relative;
  display: inline-flex;
  width: 2.75rem;
  height: 1.5rem;
  flex-shrink: 0;
  cursor: pointer;
}
.switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.switch-ui {
  width: 100%;
  height: 100%;
  border-radius: 9999px;
  background: rgba(20, 18, 15, 0.15);
  border: 1px solid var(--border-strong);
  transition: background 0.25s;
  position: relative;
}
.switch-ui::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border-strong);
  transition: transform 0.25s;
}
.switch input:checked + .switch-ui {
  background: var(--foreground);
  border-color: var(--foreground);
}
.switch input:checked + .switch-ui::after {
  transform: translateX(1.2rem);
  border-color: transparent;
  background: var(--background);
}
.switch input:focus-visible + .switch-ui {
  outline: 2px solid var(--foreground);
  outline-offset: 2px;
}

.sem-result {
  border: 1px solid var(--foreground);
  padding: 1.5rem;
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.sem-status {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-strong);
  transition: background 0.35s, color 0.35s, border-color 0.35s;
}
.sem-status[data-level="g"] {
  background: #ecfdf5;
  border-color: #86efac;
  color: #14532d;
}
.sem-status[data-level="a"] {
  background: #fffbeb;
  border-color: #fcd34d;
  color: #78350f;
}
.sem-status[data-level="r"] {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #7f1d1d;
}
.sem-status-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  background: rgba(255, 255, 255, 0.5);
  flex-shrink: 0;
}
.sem-status-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.75;
  margin-bottom: 0.15rem;
}
.sem-status-v {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
}
.sem-implication h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}
.sem-implication p {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  line-height: 1.55;
  padding: 0.9rem 1rem;
  background: var(--muted);
  border: 1px solid var(--border-strong);
}
.sem-rubric-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-foreground);
  margin-bottom: 0.65rem;
}
.sem-rubric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
.sem-rubric-grid > div {
  border: 1px solid var(--border-strong);
  padding: 0.65rem 0.5rem;
  text-align: center;
}
.sem-rubric-grid .k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  color: var(--muted-foreground);
  margin-bottom: 0.25rem;
}
.sem-rubric-grid .v {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.3;
}
@media (max-width: 600px) {
  .sem-rubric-grid { grid-template-columns: 1fr; }
}

/* Capstone */
.two-col {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
@media (min-width: 900px) { .two-col { grid-template-columns: 1fr 1fr; } }
.box {
  border: 1px solid var(--border-strong);
  padding: 1.5rem;
  background: var(--card);
}
.box h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  margin-bottom: 0.85rem;
}
.box ul {
  padding-left: 1.1rem;
  color: var(--muted-foreground);
  font-size: 0.925rem;
}
.box li { margin-bottom: 0.35rem; }
.sem-row {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.65rem;
  font-size: 0.85rem;
  margin-top: 0.55rem;
}
.sem-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.28rem 0.4rem;
  border: 1px solid var(--border-strong);
  text-align: center;
}
/* FAQ */
.faq-list { max-width: 720px; margin-top: 2rem; }
details.faq {
  border-bottom: 1px solid var(--border-strong);
  padding: 1.05rem 0;
}
details.faq summary {
  font-size: 1.05rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--muted-foreground);
}
details.faq[open] summary::after { content: "−"; }
details.faq p {
  margin-top: 0.75rem;
  color: var(--muted-foreground);
  font-size: 0.95rem;
  line-height: 1.65;
  animation: fade-slide-in 0.35s ease;
}
details.faq summary {
  transition: color 0.2s;
}
details.faq:hover summary { color: var(--foreground); }

/* CTA */
.cta-frame {
  position: relative;
  border: 1px solid var(--foreground);
  overflow: hidden;
}
.cta-spotlight {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  pointer-events: none;
  transition: background 0.15s;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2.5rem;
  padding: 2.5rem 1.5rem;
}
@media (min-width: 1000px) {
  .cta-inner {
    grid-template-columns: 1.15fr 0.85fr;
    padding: 3.5rem 3.5rem;
    align-items: start;
  }
}
.cta-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.75rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin-bottom: 1rem;
}
.after-list {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted-foreground);
  font-size: 0.925rem;
}
.after-list li { margin-bottom: 0.35rem; }
.cta-tetra {
  width: min(100%, 320px);
  height: 280px;
  margin-top: 1.5rem;
  opacity: 0.85;
}
@media (max-width: 999px) {
  .cta-tetra { display: none; }
}
.cta-tetra canvas { width: 100%; height: 100%; display: block; }
.cta-corner {
  position: absolute;
  width: 5rem;
  height: 5rem;
  border-color: rgba(20, 18, 15, 0.1);
  border-style: solid;
  pointer-events: none;
  z-index: 1;
}
.cta-corner.tl {
  top: 0; right: 0;
  border-width: 0 0 1px 1px;
}
.cta-corner.br {
  bottom: 0; left: 0;
  border-width: 1px 1px 0 0;
}

.form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted-foreground);
  margin-bottom: 0.35rem;
}
.form .field { margin-bottom: 0.9rem; }
.form input,
.form select {
  width: 100%;
  height: 3rem;
  padding: 0 0.85rem;
  border: 1px solid var(--border-strong);
  background: var(--card);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--foreground);
  border-radius: var(--radius);
}
.form input:focus,
.form select:focus {
  outline: 1px solid var(--foreground);
  border-color: var(--foreground);
}
.form .hint {
  font-size: 0.72rem;
  color: var(--muted-foreground);
  margin-top: 0.75rem;
  font-family: var(--font-mono);
}
.form-success {
  display: none;
  border: 1px solid var(--border-strong);
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  background: var(--muted);
}
.form-success.show { display: block; }
.form-error {
  display: none;
  border: 1px solid #c0392b;
  color: #c0392b;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  background: rgba(192, 57, 43, 0.06);
}
.form-error.show { display: block; }

/* Footer */
footer {
  position: relative;
  border-top: 1px solid var(--border-strong);
  padding: 3.5rem 0 2rem;
  overflow: hidden;
}
.footer-wave {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 12rem;
  opacity: 0.2;
  pointer-events: none;
}
.footer-wave canvas { width: 100%; height: 100%; display: block; }
.footer-inner { position: relative; z-index: 2; }
.footer-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer-brand .name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 0.85rem;
}
.footer-brand p {
  color: var(--muted-foreground);
  font-size: 0.9rem;
  max-width: 16rem;
}
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  margin-bottom: 0.65rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--foreground); }
.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-strong);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted-foreground);
  font-family: var(--font-mono);
}

.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }

/* Method chips pulse on track panel */
.method-flow span:not(.arr) {
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}
.track-panel.active .method-flow span:not(.arr) {
  animation: fade-slide-in 0.4s ease both;
}
.track-panel.active .method-flow span:not(.arr):nth-child(1) { animation-delay: 0.05s; }
.track-panel.active .method-flow span:not(.arr):nth-child(3) { animation-delay: 0.12s; }
.track-panel.active .method-flow span:not(.arr):nth-child(5) { animation-delay: 0.19s; }
.track-panel.active .method-flow span:not(.arr):nth-child(7) { animation-delay: 0.26s; }
.track-panel.active .method-flow span:not(.arr):nth-child(9) { animation-delay: 0.33s; }

/* Active nav link */
.nav-links a.is-active { color: var(--foreground); }
.nav-links a.is-active::after { width: 100%; }

@media (prefers-reduced-motion: reduce) {
  .marquee,
  .stack-row.forward,
  .stack-row.reverse,
  .word-underline,
  .scroll-cue .mouse i { animation: none; }
  .char, .how-code-body .line, .how-code-body .c,
  .track-panel.active,
  details.faq p,
  .track-panel.active .method-flow span:not(.arr) {
    animation: none;
    opacity: 1;
    filter: none;
    transform: none;
  }
  .hover-lift:hover { transform: none; }
  .hero-fade, .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .scroll-cue { opacity: 0.6; }
}