/* =========================================================
   Intelecta — Estudio académico y editorial
   ========================================================= */

:root {
  --bg: #FAFAF7;
  --surface: #FFFFFF;
  --surface-2: #F2EFEA;
  --text: #1A1A1A;
  --text-muted: #5C5C5C;
  --text-strong: #0F0F0F;
  --border: #E8E4DF;
  --border-strong: #D4CFC7;
  --accent: #E0228F;
  --accent-bright: #FC038C;
  --accent-deep: #5B1F45;
  --accent-soft: #FBE3F0;

  --font-serif: "Fraunces", "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-label: "Inter Tight", "Inter", sans-serif;

  --container: 1200px;
  --radius: 4px;
  --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #111111;
  --surface: #1A1A1A;
  --surface-2: #1F1F1F;
  --text: #F5F5F2;
  --text-muted: #B8B8B6;
  --text-strong: #FFFFFF;
  --border: #2A2A2A;
  --border-strong: #3A3A3A;
  --accent: #E0228F;
  --accent-bright: #FF1A9E;
  --accent-deep: #B04A82;
  --accent-soft: #2A1520;
}

/* =========================================================
   Theme transition (View Transitions API)
   ========================================================= */
@supports (view-transition-name: none) {
  /* Disable Hermes default crossfade so we can drive a clipped reveal */
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
    mix-blend-mode: normal;
  }
  /* Old layer (current theme) stays put underneath */
  ::view-transition-old(root) {
    z-index: 1;
  }
  /* New layer (next theme) clips into a circle expanding from --vt-x/--vt-y */
  ::view-transition-new(root) {
    z-index: 2;
    animation: theme-clip 360ms cubic-bezier(0.32, 0.72, 0, 1) both;
  }
}
@keyframes theme-clip {
  from { clip-path: circle(0 at var(--vt-x, 50%) var(--vt-y, 50%)); }
  to   { clip-path: circle(var(--vt-r, 150vmax) at var(--vt-x, 50%) var(--vt-y, 50%)); }
}
@media (prefers-reduced-motion: reduce) {
  ::view-transition-new(root) { animation: none; }
}

/* CTA destacado en nav */
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  border: 1px solid var(--text);
  border-radius: 2px;
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.nav-cta:hover, .nav-cta:focus-visible {
  background: var(--text);
  color: var(--bg);
}
.nav-cta.active {
  background: var(--text);
  color: var(--bg);
}
@media (max-width: 700px) {
  .nav-cta { padding: 0.45rem 0.75rem; font-size: 0.7rem; }
}

/* Visually hidden helper para landmarks */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Focus visible coherente para todo el sitio */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition), color var(--transition);
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

/* Tipografía */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}
h1 { font-size: clamp(2.4rem, 5.5vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; font-weight: 500; }
p { color: var(--text); }
.muted { color: var(--text-muted); }

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* =========================================================
   Header
   ========================================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 247, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}
[data-theme="dark"] .header { background: rgba(17, 17, 17, 0.85); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  font-weight: 500;
}
.brand-mark {
  color: var(--accent);
  display: inline-block;
  margin-left: 1px;
}
.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 360ms cubic-bezier(0.32, 0.72, 0, 1);
}
.nav a:hover { color: var(--text); }
.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}
.nav a.active { color: var(--text); }
.nav a.active::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.theme-toggle {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: border-color var(--transition), background var(--transition);
}
.theme-toggle:hover { border-color: var(--text); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.menu-toggle { display: none; }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
}
.btn-primary:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px -8px rgba(224, 34, 143, 0.55);
}
[data-theme="dark"] .btn-primary {
  background: transparent;
  color: #F5F5F2;
  border: 1px solid #F5F5F2;
}
[data-theme="dark"] .btn-primary:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  color: #FFFFFF;
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--text);
}
.btn-link {
  color: var(--text);
  padding: 0;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 0;
}
.btn-link:hover { color: var(--accent); }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}
.hero-eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hero-eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
}
.hero-title {
  font-size: clamp(2.6rem, 6vw, 5rem);
  margin-bottom: 1.75rem;
  letter-spacing: -0.03em;
  line-height: 0.92;
  text-wrap: balance;
}
.hero-title .accent { color: var(--accent); }
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text);
  opacity: 0.86;
  max-width: 620px;
  margin-bottom: 2.5rem;
  line-height: 1.65;
  text-wrap: pretty;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Disponibilidad sutil debajo del subtítulo */
.hero-availability {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 2rem;
  padding: 0.5rem 0.9rem 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--surface);
  letter-spacing: 0.005em;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.hero-availability:hover { border-color: var(--border-strong); }
.hero-avail-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(224, 34, 143, 0.4);
  animation: hero-avail-pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}
.hero-availability[data-state="closed"] .hero-avail-dot {
  background: var(--text-muted);
  animation: none;
  box-shadow: none;
}
.hero-avail-state { color: var(--text); font-weight: 500; }
@keyframes hero-avail-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(224, 34, 143, 0.4); }
  70%  { box-shadow: 0 0 0 8px rgba(224, 34, 143, 0); }
  100% { box-shadow: 0 0 0 0 rgba(224, 34, 143, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-avail-dot { animation: none; }
}

/* =========================================================
   Section base
   ========================================================= */
section {
  padding: 5.5rem 0;
  border-bottom: 1px solid var(--border);
}
/* Ritmo no plano entre secciones */
.manifesto { padding: 4rem 0; }
#estimador { padding: 5rem 0; }
#proceso { padding: 4.5rem 0; }
#faq { padding: 6rem 0; }
.cta-final { padding: 6.5rem 0; }
.section-heading {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 3.5rem;
}
.section-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-label);
  font-weight: 500;
}
.section-label::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
}
.section-heading h2 { margin-bottom: 1rem; }
.section-heading p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 620px;
}

/* =========================================================
   Equipo
   ========================================================= */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.team-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
}
.team-circle {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
}
.team-card h3 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.team-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* =========================================================
   Servicios
   ========================================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.service-card {
  padding: 2.25rem 1.75rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
  position: relative;
}
.service-card:hover { background: var(--surface); }
.service-card .num {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-feature-settings: "tnum";
}
.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* =========================================================
   Cómo trabajamos (timeline)
   ========================================================= */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border);
}
.timeline-step {
  padding-right: 1.5rem;
  position: relative;
}
.timeline-step .dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--bg);
  border: 1.5px solid var(--accent);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}
.timeline-step .num {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
.timeline-step h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}
.timeline-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* =========================================================
   Principios
   ========================================================= */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}
.principle h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 0.85rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--accent);
  display: inline-block;
}
.principle p {
  color: var(--text-muted);
  line-height: 1.65;
}

/* =========================================================
   FAQ
   ========================================================= */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.5rem 0;
  font-size: 1.05rem;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-sans);
  color: var(--text);
  letter-spacing: -0.01em;
}
.faq-question::after {
  content: "+";
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform var(--transition);
}
.faq-item.open .faq-question::after { content: "−"; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
  color: var(--text-muted);
}
.faq-answer-inner {
  padding: 0 0 1.5rem 0;
  line-height: 1.7;
  max-width: 700px;
}
.faq-item.open .faq-answer { max-height: 1000px; }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
  border-bottom: none;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer h4 {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-weight: 500;
}
.footer .brand { font-size: 1.75rem; margin-bottom: 0.75rem; }
.footer-tagline {
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
  font-size: 0.95rem;
}
.footer-list li { margin-bottom: 0.65rem; }
.footer-list a, .footer-list span {
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color var(--transition);
}
.footer-list a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =========================================================
   Multi-step form (cotizador)
   ========================================================= */
.form-page { padding: 4rem 0 6rem; }
.form-wrap {
  max-width: 720px;
  margin: 0 auto;
}
.form-header {
  margin-bottom: 3rem;
  text-align: center;
}
.form-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}
.form-header p {
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.65;
}

.progress-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 3rem;
}
.progress-step {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  transition: background var(--transition);
}
.progress-step.done { background: var(--accent); }
.progress-step.active { background: var(--accent); }

.step { display: none; animation: fadeUp 350ms ease both; }
.step.active { display: block; }
.step-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
  margin-bottom: 0.75rem;
  display: block;
  font-weight: 600;
}
[data-theme="dark"] .step-label { color: var(--text); }
.step h2 {
  font-size: 1.85rem;
  margin-bottom: 0.5rem;
}
.step-intro {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.field { margin-bottom: 1.75rem; }
.field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text);
}
.field .hint {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color var(--transition);
}
.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235C5C5C' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}
[data-theme="dark"] .field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23A8A8A8' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.field textarea { min-height: 120px; resize: vertical; }
.field-error {
  color: var(--accent);
  font-size: 0.82rem;
  margin-top: 0.4rem;
  display: none;
}
.field.has-error input, .field.has-error select, .field.has-error textarea {
  border-color: var(--accent);
}
.field.has-error .field-error { display: block; }

.field-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.option-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.95rem;
  background: var(--surface);
}
.option-card:hover { border-color: var(--text); }
.option-card input { width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer; }
.option-card.checked {
  border-color: var(--accent);
  background: transparent;
  box-shadow: inset 3px 0 0 var(--accent);
}
.option-card.checked span { color: var(--text); }
[data-theme="dark"] .option-card.checked {
  background: transparent;
  border-color: var(--accent);
}

.form-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  gap: 1rem;
}
.form-actions .btn { min-width: 140px; }

.confirmation {
  text-align: center;
  padding: 4rem 0;
}
.confirmation-icon {
  width: 64px; height: 64px;
  margin: 0 auto 2rem;
  border: 1.5px solid var(--accent);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.75rem;
  font-family: var(--font-serif);
}
.confirmation h2 { margin-bottom: 1rem; }
.confirmation p {
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up {
  animation: fadeUp 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 900ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 900ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
[data-reveal].in {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html { scroll-behavior: auto; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px) {
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr; gap: 2rem; }
  .timeline::before { display: none; }
  .principles-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .field-group { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  section { padding: 3.5rem 0; }
  .hero { padding: 4rem 0 3.5rem; }
  .nav { display: none; }
  .menu-toggle {
    display: inline-flex;
    width: 36px; height: 36px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 999px;
  }
  .nav.open {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
    gap: 1.25rem;
  }
  .services-grid { grid-template-columns: 1fr; }
  .options-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
  .form-actions { flex-direction: column-reverse; }
  .form-actions .btn { width: 100%; }
}

/* =========================================================
   v2 — Componentes simplificados (editorial fino)
   ========================================================= */
.section-soft {
  background: color-mix(in srgb, var(--bg) 92%, var(--text) 0%);
}
[data-theme="dark"] .section-soft {
  background: color-mix(in srgb, var(--bg) 100%, #FFFFFF 3%);
}

section { padding: 7rem 0; border-bottom: none; }
.hero { padding: 8rem 0 6rem; border-bottom: none; }
.hero .container { max-width: 880px; }

.hero-title {
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.section-heading-simple {
  margin-bottom: 4rem;
  max-width: 720px;
}
.section-heading-simple h2 {
  font-weight: 400;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.section-heading-simple p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Services as list, no boxes */
.services-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
}
.service-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: baseline;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left var(--transition);
}
.service-row:hover { padding-left: 0.5rem; }
.service-name {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.service-desc {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* Process — vertical timeline editorial */
.process-timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
  position: relative;
}
.process-timeline::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 0.6rem;
  bottom: 0.6rem;
  width: 1px;
  background: var(--border);
}
.process-step-item {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1.75rem;
  padding: 1.4rem 0 1.6rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  align-items: start;
}
.process-step-item:last-child { border-bottom: 0; }
.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--text);
  position: relative;
  z-index: 1;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.process-num-roman { font-style: normal; line-height: 1; padding-top: 1px; }
.process-step-item:hover .process-num {
  border-color: var(--accent);
  color: var(--accent);
}
.process-body { display: flex; flex-direction: column; gap: 0.35rem; }
.process-step {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
}
.process-line {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
  max-width: 56ch;
}
@media (max-width: 700px) {
  .process-timeline::before { left: 0.95rem; }
  .process-step-item { grid-template-columns: 2.3rem 1fr; gap: 1rem; padding: 1.1rem 0 1.25rem; }
  .process-num { width: 1.9rem; height: 1.9rem; font-size: 0.82rem; }
  .process-step { font-size: 1.05rem; }
}

/* Process as light list */
.process-list {
  list-style: none;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}
.process-list li {
  counter-increment: step;
  display: grid;
  grid-template-columns: auto 1fr 2fr;
  gap: 2rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.process-list li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  font-weight: 500;
  width: 2.5rem;
}
.process-step {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.process-line {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* Equipo block — prosa */
.equipo-block {
  max-width: 680px;
}
.equipo-block h2 {
  font-weight: 400;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.equipo-block p {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-family: var(--font-serif);
  font-weight: 300;
}
.equipo-block p:last-child { margin-bottom: 0; }

/* CTA final */
.cta-final {
  padding: 7rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}
.cta-final h2 {
  font-weight: 400;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.cta-final p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer compacto */
.footer { padding: 3rem 0 2.5rem; border-top: 1px solid var(--border); }
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.footer-row a {
  color: var(--text);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}
.footer-row a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Heading scale a tono editorial */
h1.hero-title {
  font-size: clamp(2.6rem, 7vw, 5.8rem);
}

@media (max-width: 700px) {
  section { padding: 4.5rem 0; }
  .hero { padding: 5rem 0 4rem; }
  .cta-final { padding: 4.5rem 0; }
  .service-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.5rem 0;
  }
  .service-row:hover { padding-left: 0; }
  .process-list li {
    grid-template-columns: auto 1fr;
    gap: 1rem;
    row-gap: 0.4rem;
  }
  .process-list li::before { grid-row: 1 / 2; }
  .process-step { grid-column: 2; }
  .process-line { grid-column: 2; }
  .footer-row { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

/* =========================================================
   Estimador
   ========================================================= */
.estimator {
  max-width: 880px;
  margin: 0 auto;
}
.estimator-form {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.estimator-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.estimator-field label {
  font-family: var(--font-label);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-weight: 500;
}
.estimator-field select {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235C5C5C' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
  transition: border-color var(--transition);
}
.estimator-field select:focus {
  outline: none;
  border-color: var(--accent);
}
[data-theme="dark"] .estimator-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23A8A8A8' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
}
.estimator-result {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  margin-bottom: 1.5rem;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.est-empty {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 0.95rem;
}
.est-result-label {
  font-family: var(--font-label);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.85rem;
}
.est-result-range {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--text);
}
.est-result-range .accent { color: var(--accent); }
.est-result-meta {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-top: 0.85rem;
  line-height: 1.5;
  max-width: 480px;
}
.estimator-disclaimer {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
  text-align: center;
  max-width: 620px;
  margin: 0 auto 2rem;
  padding: 0 1rem;
}
.estimator-cta {
  text-align: center;
}
@media (max-width: 700px) {
  .estimator-form { grid-template-columns: 1fr; }
  .estimator-result { padding: 2rem 1.25rem; }
}

/* =========================================================
   Estimador — info de pago
   ========================================================= */
.est-pay-label {
  font-family: var(--font-label);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  font-weight: 500;
}
.est-pay-text {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
  max-width: 480px;
  margin: 0 auto 1rem;
}
.estimator-payments {
  max-width: 620px;
  margin: 0 auto 2rem;
  padding: 1.5rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.estimator-payments .est-pay-label {
  display: block;
  text-align: center;
  margin-bottom: 0.85rem;
}
.est-pay-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
}
.est-pay-list li {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
}
.est-pay-list li::before {
  content: "·";
  color: var(--accent);
  margin-right: 0.5rem;
  font-weight: 700;
}
.est-pay-note {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
  text-align: center;
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

/* =========================================================
   v3 — Refactor editorial premium
   ========================================================= */

/* Header refinado */
.header {
  padding: 1.5rem 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.brand {
  font-size: 1.35rem;
  letter-spacing: -0.025em;
  font-weight: 400;
}
.brand-mark {
  color: var(--accent);
  margin-left: 1px;
  font-size: 0.85em;
  vertical-align: 0.05em;
}

/* Hero editorial composición asimétrica */
.hero {
  padding: clamp(4rem, 10vw, 8rem) 0 clamp(3rem, 7vw, 6rem);
  position: relative;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px);
  background-size: calc(100% / 12) 100%;
  background-position: 0 0;
}
[data-theme="dark"] .hero {
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "meta"
    "main";
  gap: 2.5rem;
  align-items: end;
}
@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr 3fr;
    grid-template-areas: "meta main";
    gap: 3rem;
  }
}
.hero-meta {
  grid-area: meta;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-self: start;
  padding-top: 0.5rem;
}
.hero-vol {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-style: italic;
}
.hero-meta-line {
  width: 100%;
  height: 1px;
  background: var(--border);
  display: block;
}
.hero-edition {
  font-family: var(--font-label);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  font-weight: 500;
}
.hero-main { grid-area: main; }
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.9;
  margin-bottom: 2.5rem;
}
.hero-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text);
  opacity: 0.78;
  line-height: 1.5;
  max-width: 480px;
  margin-bottom: 2.75rem;
}
.hero-actions {
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

/* Botones más editoriales */
.btn {
  border-radius: 2px;
  padding: 0.95rem 1.4rem;
  font-family: var(--font-label);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.btn-primary {
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--text);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #FFFFFF;
  transform: none;
  box-shadow: 0 6px 18px -8px rgba(224, 34, 143, 0.5);
}
[data-theme="dark"] .btn-primary {
  background: transparent;
  color: #F5F5F2;
  border: 1px solid #F5F5F2;
}
[data-theme="dark"] .btn-primary:hover {
  background: #F5F5F2;
  color: #111111;
  border-color: #F5F5F2;
  box-shadow: none;
}
.btn-secondary {
  border-radius: 2px;
  border-color: var(--border-strong);
}

/* Link tipo flecha editorial */
.link-arrow {
  font-family: var(--font-label);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  position: relative;
  padding-bottom: 4px;
  display: inline-block;
  transition: color var(--transition);
}
.link-arrow::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--text);
  transform-origin: right;
  transition: transform 0.5s cubic-bezier(0.22,1,0.36,1);
}
.link-arrow:hover {
  color: var(--accent);
}
.link-arrow:hover::after {
  background: var(--accent);
  transform: scaleX(0.6);
  transform-origin: left;
}

/* Manifiesto */
.manifesto {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.manifesto-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 880px;
}
@media (min-width: 800px) {
  .manifesto-block {
    grid-template-columns: 180px 1fr;
    gap: 3.5rem;
  }
}
.manifesto-text {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.4rem, 2.4vw, 1.95rem);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 0;
}

/* Section heading simple con label */
.section-heading-simple {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 4rem;
  max-width: 720px;
}
.section-heading-simple .section-label {
  margin-bottom: 0.5rem;
}
.section-heading-simple h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
  word-spacing: 0.05em;
}
.section-heading-simple p {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.7;
  margin: 0.5rem 0 0;
  max-width: 540px;
}

/* Servicios como lista editorial */
.services-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
}
.service-row {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
@media (min-width: 800px) {
  .service-row {
    grid-template-columns: 60px 1fr 2fr;
    gap: 3rem;
    padding: 2.5rem 0;
  }
}
.service-num {
  font-family: var(--font-label);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  font-weight: 500;
}
.service-name {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text);
}
.service-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
  grid-column: 2;
}
@media (min-width: 800px) {
  .service-desc { grid-column: auto; }
}

/* Disciplinas (equipo) */
.equipo-block {
  max-width: 760px;
  margin-bottom: 4rem;
}
.equipo-block h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.035em;
  line-height: 1;
  margin: 1rem 0;
}
.equipo-block p {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.75;
  margin: 0 0 1rem;
}
.discipline-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
}
.discipline {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
@media (min-width: 800px) {
  .discipline {
    grid-template-columns: 100px 1fr 1.5fr;
    padding: 2.25rem 0;
  }
}
.discipline-letter {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--accent);
}
.discipline-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.discipline-area {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  letter-spacing: -0.02em;
  color: var(--text);
  font-weight: 400;
}
.discipline-desc {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Testimonios */
.testimonials {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 900px) {
  .testimonials {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}
.testimonial {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem 0 0;
  border-top: 1px solid var(--border-strong);
  position: relative;
}
.testimonial::before {
  content: "“";
  position: absolute;
  top: -0.4rem;
  left: 0;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
}
.testimonial-quote {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.08rem;
  line-height: 1.55;
  color: var(--text);
  margin: 0;
  padding-top: 1rem;
  letter-spacing: -0.005em;
}
.testimonial-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.testimonial-name {
  font-family: var(--font-label);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text);
  font-weight: 500;
}
.testimonial-area {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Mobile: hero más vertical y compacto */
@media (max-width: 700px) {
  .hero {
    padding: 3.5rem 0 2.5rem;
    background-image: none;
  }
  .hero-title {
    font-size: clamp(2.6rem, 12vw, 4.2rem);
    letter-spacing: -0.04em;
  }
  .hero-aside {
    border-left: none;
    border-top: 1px solid var(--border);
    padding: 1.25rem 0 0;
    margin-top: 1rem;
  }
  .hero-meta { padding-top: 0; }
}

/* Header sticky con blur */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
}

/* Padding generoso entre secciones */
section {
  padding: clamp(4rem, 9vw, 7rem) 0;
}
section + section {
  border-top: 1px solid var(--border);
}

/* Iconos disciplinas (reemplazo MESHD) */
.discipline-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(48px, 6vw, 68px);
  height: clamp(48px, 6vw, 68px);
  color: var(--accent);
}
.discipline-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* =========================================================
   Skip link (a11y)
   ========================================================= */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--text);
  color: var(--bg);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-tight, var(--font-sans));
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  z-index: 9999;
  text-decoration: none;
  border-radius: 2px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* =========================================================
   Legal pages
   ========================================================= */
.legal-page {
  padding-top: clamp(3rem, 7vw, 5rem);
}
.legal-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.legal-section {
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  border-top: 1px solid var(--border);
}
.legal-section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}
.legal-section p {
  color: var(--text-muted);
  line-height: 1.75;
  margin: 0 0 1rem;
}
.legal-section a,
.legal-updated {
  color: var(--accent);
}
.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
}
.footer-links a {
  color: inherit;
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--accent);
}
@media (max-width: 640px) {
  .footer-links { gap: 0.65rem; }
}

/* =========================================================
   Header nav responsive refinado
   ========================================================= */
@media (min-width: 641px) {
  .nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.65rem 1.15rem;
  }
  .nav a {
    white-space: nowrap;
  }
}
@media (max-width: 640px) {
  .nav.open {
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1rem 1rem;
  }
  .nav.open a {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-bottom: 1px solid var(--border);
    font-family: var(--font-label, var(--font-sans));
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
  }
  .nav.open a:last-child {
    border-bottom: 0;
  }
  .nav.open a.active::after {
    left: 50%;
    right: auto;
    width: 1.5rem;
    transform: translateX(-50%);
  }
}