/* ============================================================
   Instituto Dorothea — hoja de estilos
   Tokens: guinda institucional + hueso cálido + acentos de dato
   clínico (mono). Firma visual: línea de pulso/ECG como divisor
   estructural entre secciones.
   ============================================================ */

:root{
  --guinda-900:#3E0B1C;
  --guinda-700:#6B1029;
  --guinda-600:#7E1531;
  --guinda-500:#9C2242;
  --guinda-100:#F3E1E6;
  --hueso:#FAF5EE;
  --hueso-alt:#F3ECE1;
  --carbon:#241619;
  --carbon-soft:#6E5D60;
  --dorado:#B08D4F;
  --blanco:#FFFFFF;
  --line:rgba(36,22,25,.14);
  --line-soft:rgba(36,22,25,.08);

  --font-display:'Fraunces', Georgia, serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:'IBM Plex Mono', 'Courier New', monospace;

  --container:1200px;
  --section-pad:clamp(4rem, 8vw, 7rem);
  --radius:2px;
  --shadow-card:0 1px 2px rgba(36,22,25,.06), 0 12px 28px -18px rgba(59,10,25,.35);
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--hueso);
  color:var(--carbon);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

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

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

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:clamp(1.25rem, 4vw, 2.5rem);
}

h1, h2, h3{
  font-family:var(--font-display);
  color:var(--guinda-900);
  margin:0;
  font-weight:600;
  letter-spacing:-.01em;
}

h1{ font-size:clamp(2.4rem, 4.6vw, 4.1rem); line-height:1.05; }
h2{ font-size:clamp(1.85rem, 3.2vw, 2.65rem); line-height:1.12; }
h3{ font-size:1.28rem; line-height:1.3; }

p{ margin:0; }

:focus-visible{
  outline:2px solid var(--guinda-500);
  outline-offset:3px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.74rem;
  text-transform:uppercase;
  letter-spacing:.16em;
  color:var(--guinda-500);
  margin:0 0 1rem;
}

.section-head{ max-width:44rem; margin-bottom:clamp(2.5rem, 5vw, 3.75rem); }
.section-head__lede{ margin-top:1rem; font-size:1.08rem; color:var(--carbon-soft); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.85rem 1.6rem;
  border-radius:var(--radius);
  font-family:var(--font-body);
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease;
}
.btn--primary{ background:var(--guinda-700); color:var(--blanco); }
.btn--primary:hover{ background:var(--guinda-500); transform:translateY(-1px); box-shadow:0 10px 20px -12px rgba(107,16,41,.55); }
.btn--outline{ background:transparent; color:var(--guinda-700); border-color:var(--guinda-700); }
.btn--outline:hover{ background:var(--guinda-100); }
.btn--sm{ padding:.6rem 1.15rem; font-size:.85rem; }
.btn--block{ width:100%; }

/* ---------- pulse line (signature motif) ---------- */
.pulse-line{ width:100%; overflow:hidden; line-height:0; color:var(--guinda-500); }
.pulse-line svg{ width:100%; height:16px; display:block; }
.pulse-line path{ fill:none; stroke:currentColor; stroke-width:1.4; stroke-linecap:round; stroke-linejoin:round; }
.pulse-line--nav{ height:8px; color:var(--guinda-100); opacity:.9; }
.pulse-line--nav svg{ height:8px; }
.pulse-line--section{ position:relative; top:1px; }

.pulse-line path{
  stroke-dasharray:900;
  stroke-dashoffset:900;
  animation:draw 1.7s ease forwards .2s, heartbeat-glow 1.15s ease-in-out 1.9s infinite;
}
@keyframes draw{ to{ stroke-dashoffset:0; } }
@keyframes heartbeat-glow{
  0%, 100%{ opacity:1; filter:none; }
  8%{ opacity:.5; }
  16%{ opacity:1; filter:drop-shadow(0 0 3px currentColor); }
  26%{ opacity:.55; }
  40%{ opacity:1; filter:drop-shadow(0 0 5px currentColor); }
  55%, 100%{ opacity:1; filter:none; }
}

.btn--pulse{ animation:cta-pulse 2.3s ease-in-out 1.5s infinite; }
@keyframes cta-pulse{
  0%, 100%{ box-shadow:0 0 0 0 rgba(156,34,66,.35); }
  50%{ box-shadow:0 0 0 9px rgba(156,34,66,0); }
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(250,245,238,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line-soft);
}
.site-header__bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.5rem;
  padding-block:.85rem;
}
.brand{ display:flex; align-items:center; gap:.75rem; color:var(--guinda-700); }
.brand__mark{
  display:inline-flex; align-items:center; justify-content:center;
  width:42px; height:42px; flex:none;
  background:var(--blanco); border-radius:50%; border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.brand__mark img{ width:100%; height:100%; object-fit:contain; padding:3px; }
.brand__text{ display:flex; flex-direction:column; line-height:1.2; }
.brand__name{ font-family:var(--font-display); font-weight:600; font-size:1.08rem; color:var(--guinda-900); }
.brand__tagline{ font-family:var(--font-mono); font-size:.62rem; letter-spacing:.12em; text-transform:uppercase; color:var(--carbon-soft); }

.site-nav ul{ display:flex; align-items:center; gap:1.75rem; list-style:none; margin:0; padding:0; }
.site-nav a{
  font-size:.92rem;
  font-weight:500;
  color:var(--carbon);
  position:relative;
  padding-block:.3rem;
}
.site-nav a::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-2px;
  height:1.5px; background:var(--guinda-500);
  transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.site-nav a:hover::after{ transform:scaleX(1); }

.site-header__actions{ display:flex; align-items:center; gap:.9rem; }
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:38px; height:38px;
  background:transparent; border:1px solid var(--line); border-radius:var(--radius);
  cursor:pointer;
}
.nav-toggle span{ display:block; height:1.5px; margin-inline:8px; background:var(--guinda-700); }

/* ---------- hero ---------- */
.hero{ padding-top:clamp(3rem, 7vw, 5.5rem); padding-bottom:2.5rem; position:relative; overflow:hidden;
  background-image:repeating-linear-gradient(180deg, var(--line-soft) 0 1px, transparent 1px 34px);
}
.hero__canvas{
  position:absolute; inset:0; width:100%; height:100%;
  z-index:0; pointer-events:none; display:block;
}
.hero__grid{
  position:relative; z-index:1;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:clamp(2rem, 5vw, 4rem);
  align-items:center;
}
.eyebrow__dot{
  display:inline-block; width:7px; height:7px; margin-right:.5rem;
  border-radius:50%; background:var(--guinda-500);
  animation:live-dot 1.15s ease-in-out infinite;
  vertical-align:middle;
}
@keyframes live-dot{
  0%, 100%{ opacity:1; box-shadow:0 0 0 0 rgba(156,34,66,.45); }
  50%{ opacity:.55; box-shadow:0 0 0 4px rgba(156,34,66,0); }
}
.hero__sub{ margin-top:1.35rem; font-size:1.12rem; color:var(--carbon-soft); max-width:36rem; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:1rem; margin-top:2.1rem; }

.chart-card{
  background:var(--blanco);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  padding:1.5rem 1.5rem 0;
  position:relative;
  overflow:hidden;
}
.chart-card__head{
  display:flex; justify-content:space-between;
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--carbon-soft); padding-bottom:1rem; border-bottom:1px dashed var(--line);
}
.chart-card__photo{
  margin:1rem -1.5rem 0;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--hueso-alt);
}
.chart-card__photo img{ width:100%; height:100%; object-fit:cover; }
.chart-card__pulse{ width:100%; height:40px; color:var(--guinda-500); display:block; margin-inline:-1.5rem; width:calc(100% + 3rem); }
.chart-card__pulse path{ fill:none; stroke:currentColor; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round;
  stroke-dasharray:700; stroke-dashoffset:700; animation:draw 1.9s ease forwards .5s, heartbeat-glow 1.15s ease-in-out 2.4s infinite; }

.vitals{
  position:relative; z-index:1;
  margin-top:clamp(2.5rem, 5vw, 3.5rem);
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.vitals__item{
  padding:1.1rem 1rem;
  border-left:1px solid var(--line);
  display:flex; flex-direction:column; gap:.35rem;
}
.vitals__item:first-child{ border-left:none; }
.vitals__label{ font-family:var(--font-mono); font-size:.66rem; letter-spacing:.1em; text-transform:uppercase; color:var(--carbon-soft); }
.vitals__value{ font-family:var(--font-mono); font-size:1rem; font-weight:500; color:var(--guinda-700); }

/* ---------- about / pillars ---------- */
.about{ padding-block:var(--section-pad); }
.pillars{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1.75rem; }
.pillar-card{
  background:var(--blanco);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease, box-shadow .2s ease;
}
.pillar-card:hover{ transform:translateY(-3px); box-shadow:0 18px 34px -20px rgba(59,10,25,.4); }
.pillar-card__frame{ position:relative; aspect-ratio:4/3; border-bottom:1px solid var(--line); }
.pillar-card__frame img{ width:100%; height:100%; object-fit:cover; display:block; }
.pillar-card__tab{
  position:absolute; top:1rem; left:1.25rem;
  background:var(--guinda-700); color:var(--blanco);
  font-family:var(--font-mono); font-size:.66rem; letter-spacing:.1em; text-transform:uppercase;
  padding:.3rem .65rem; border-radius:1px;
  box-shadow:0 4px 10px -4px rgba(0,0,0,.4);
}
.pillar-card__hole{
  position:absolute; top:1.1rem; right:1.25rem;
  width:10px; height:10px; border-radius:50%;
  background:var(--blanco); border:1px solid var(--line);
}
.pillar-card__body{ padding:1.5rem 1.75rem 1.75rem; }
.pillar-card h3{ margin-bottom:.65rem; }
.pillar-card p{ color:var(--carbon-soft); }

/* ---------- community ---------- */
.community{ padding-block:var(--section-pad); }
.community__grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1.75rem; }
.community-card{ margin:0; background:var(--blanco); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-card); overflow:hidden; transition:transform .2s ease, box-shadow .2s ease; }
.community-card:hover{ transform:translateY(-3px); box-shadow:0 18px 34px -20px rgba(59,10,25,.4); }
.community-card__frame{ background:var(--hueso-alt); border-bottom:1px solid var(--line); aspect-ratio:4/3; overflow:hidden; }
.community-card__frame img{ width:100%; height:100%; object-fit:cover; }
.community-card figcaption{ padding:1.5rem 1.5rem 1.75rem; }
.community-card h3{ font-size:1.1rem; margin-bottom:.5rem; }
.community-card p{ color:var(--carbon-soft); font-size:.94rem; }

/* ---------- program ---------- */
.program{ padding-block:var(--section-pad); background:var(--hueso-alt); }
.axes{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1.5rem; margin-bottom:clamp(3rem, 6vw, 4.5rem); }
.axis{ border-left:2px solid var(--guinda-500); padding-left:1.1rem; }
.axis__tag{ display:block; font-family:var(--font-mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--guinda-700); margin-bottom:.5rem; }
.axis p{ color:var(--carbon-soft); }

.timeline{ position:relative; padding-top:1rem; }
.timeline__line{ position:absolute; top:0; left:0; width:100%; height:30px; color:var(--line); }
.timeline__line path{ fill:none; stroke:currentColor; stroke-width:1.5; }
.timeline{ display:grid; grid-template-columns:repeat(6, 1fr); gap:.5rem; }
.timeline__node{ display:flex; flex-direction:column; align-items:flex-start; gap:.85rem; }
.timeline__dot{
  width:34px; height:34px; border-radius:50%;
  background:var(--blanco); border:1.5px solid var(--guinda-500); color:var(--guinda-700);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-size:.85rem; font-weight:500;
}
.timeline__label{ font-size:.88rem; color:var(--carbon-soft); }
.program__note{ margin-top:clamp(2.5rem, 5vw, 3.5rem); font-size:.95rem; color:var(--carbon-soft); border-top:1px dashed var(--line); padding-top:1.5rem; }

/* ---------- requirements ---------- */
.requirements{ padding-block:var(--section-pad); }
.requirements__grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:clamp(2.5rem, 5vw, 4rem); align-items:start; }
.requirements__note{ margin-top:1.5rem; font-family:var(--font-mono); font-size:.8rem; color:var(--guinda-700); letter-spacing:.02em; }

.checklist{ background:var(--blanco); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-card); }
.checklist__head{
  display:flex; justify-content:space-between; align-items:center;
  padding:1.1rem 1.5rem;
  font-family:var(--font-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.08em;
  color:var(--carbon-soft); border-bottom:1px dashed var(--line);
}
.checklist ul{ list-style:none; margin:0; padding:.5rem 0; }
.checklist li{ display:flex; align-items:center; gap:.9rem; padding:.85rem 1.5rem; border-bottom:1px solid var(--line-soft); }
.checklist li:last-child{ border-bottom:none; }
.checklist__box{ width:16px; height:16px; border:1.5px solid var(--guinda-500); border-radius:2px; flex:none; }
.checklist__index{ font-family:var(--font-mono); font-size:.75rem; color:var(--carbon-soft); width:1.4rem; flex:none; }

/* ---------- pricing ---------- */
.pricing{ padding-block:var(--section-pad); background:var(--guinda-900); color:var(--hueso); }
.pricing h2, .pricing h3{ color:var(--hueso); }
.pricing .section-head__lede{ color:rgba(250,245,238,.72); }
.pricing__cards{ display:grid; grid-template-columns:repeat(2, 1fr); gap:1.75rem; }
.price-card{
  background:rgba(250,245,238,.04);
  border:1px solid rgba(250,245,238,.18);
  border-radius:var(--radius);
  padding:2.25rem 2rem;
  position:relative;
}
.price-card__seal{ position:absolute; top:1.5rem; right:1.5rem; width:26px; height:26px; color:var(--dorado); }
.price-card__label{ display:block; font-family:var(--font-mono); font-size:.75rem; letter-spacing:.08em; text-transform:uppercase; color:var(--dorado); margin-bottom:.75rem; }
.price-card__price{ display:block; font-family:var(--font-display); font-size:2.6rem; font-weight:600; color:var(--hueso); }
.price-card__note{ display:block; margin-top:.6rem; font-size:.88rem; color:rgba(250,245,238,.65); }
.pricing__cta{ margin-top:2.5rem; }
.pricing .btn--primary{ background:var(--dorado); color:var(--guinda-900); }
.pricing .btn--primary:hover{ background:#c4a366; box-shadow:none; }

/* ---------- testimonials ---------- */
.testimonials{ padding-block:var(--section-pad); }
.testimonials__intro{ display:grid; grid-template-columns:1fr .8fr; gap:clamp(2rem, 5vw, 3.5rem); align-items:end; margin-bottom:clamp(3rem, 6vw, 4.5rem); }
.testimonials__photo{ margin:0; background:var(--blanco); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-card); overflow:hidden; }
.testimonials__photo img{ width:100%; aspect-ratio:16/10; object-fit:cover; display:block; }
.testimonials__photo figcaption{ padding:.85rem 1.1rem; font-family:var(--font-mono); font-size:.72rem; letter-spacing:.04em; color:var(--carbon-soft); border-top:1px dashed var(--line); }
.stats{ display:grid; grid-template-columns:repeat(4, 1fr); border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin-bottom:clamp(3rem, 6vw, 4.5rem); }
.stats__item{ padding:1.5rem 1rem; border-left:1px solid var(--line); text-align:center; }
.stats__item:first-child{ border-left:none; }
.stats__value{ display:block; font-family:var(--font-display); font-size:2.1rem; font-weight:600; color:var(--guinda-700); }
.stats__label{ display:block; margin-top:.3rem; font-family:var(--font-mono); font-size:.72rem; letter-spacing:.06em; text-transform:uppercase; color:var(--carbon-soft); }

.quotes{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1.75rem; }
.quote-card{ margin:0; background:var(--blanco); border:1px solid var(--line); border-left:3px solid var(--guinda-500); border-radius:var(--radius); padding:1.75rem; box-shadow:var(--shadow-card); }
.quote-card blockquote{ margin:0; font-family:var(--font-display); font-style:italic; font-size:1.05rem; color:var(--carbon); line-height:1.5; }
.quote-card figcaption{ margin-top:1rem; font-family:var(--font-mono); font-size:.78rem; color:var(--guinda-700); }

/* ---------- contact ---------- */
.contact{ padding-block:var(--section-pad); background:var(--hueso-alt); }
.contact__grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(2.5rem, 5vw, 4rem); align-items:start; }
.contact__direct{ list-style:none; margin:2rem 0 0; padding:0; display:flex; flex-direction:column; gap:.75rem; }
.contact__direct a{ font-weight:600; color:var(--guinda-700); }
.contact__direct a:hover{ text-decoration:underline; }

.contact-form{
  background:var(--blanco); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow-card); padding:clamp(1.75rem, 3vw, 2.5rem);
  display:flex; flex-direction:column; gap:1.15rem;
}
.contact-form__hp{ position:absolute; left:-9999px; }
.field{ display:flex; flex-direction:column; gap:.4rem; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:1.1rem; }
label{ font-size:.82rem; font-weight:600; color:var(--carbon); }
input, select, textarea{
  font-family:var(--font-body); font-size:.95rem; color:var(--carbon);
  border:1px solid var(--line); border-radius:var(--radius);
  padding:.7rem .85rem; background:var(--hueso);
  transition:border-color .18s ease, background .18s ease;
}
input:focus, select:focus, textarea:focus{ border-color:var(--guinda-500); background:var(--blanco); outline:none; }
textarea{ resize:vertical; }
.contact-form__status{ min-height:1.2rem; font-size:.88rem; }
.contact-form__status[data-state="ok"]{ color:#2F6B4F; }
.contact-form__status[data-state="error"]{ color:var(--guinda-700); }

/* ---------- footer ---------- */
.site-footer{ background:var(--guinda-900); color:rgba(250,245,238,.85); padding-top:clamp(3rem, 6vw, 4.5rem); }
.site-footer__grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:2.5rem; padding-bottom:2.5rem; }
.brand--footer{ display:flex; align-items:center; gap:.75rem; color:var(--hueso); margin-bottom:1rem; }
.brand--footer .brand__mark{ border-color:var(--dorado); }
.brand--footer .brand__name{ color:var(--hueso); }
.brand--footer .brand__tagline{ color:rgba(250,245,238,.6); }
.site-footer__col p{ color:rgba(250,245,238,.7); font-size:.92rem; }
.site-footer h3{ color:var(--hueso); font-size:.95rem; font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.08em; margin-bottom:1rem; }
.site-footer__list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.6rem; font-size:.92rem; }
.site-footer__list a:hover{ text-decoration:underline; }
.site-footer__legal{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:.5rem;
  border-top:1px solid rgba(250,245,238,.15);
  padding-block:1.25rem;
  font-family:var(--font-mono); font-size:.72rem; color:rgba(250,245,238,.55);
}

/* ---------- whatsapp fab ---------- */
.whatsapp-fab{
  position:fixed; right:1.5rem; bottom:1.5rem; z-index:60;
  width:52px; height:52px; border-radius:50%;
  background:#25D366; color:var(--blanco);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 24px -8px rgba(0,0,0,.35);
  transition:transform .18s ease;
}
.whatsapp-fab:hover{ transform:translateY(-2px) scale(1.04); }

/* ---------- scroll reveal ---------- */
.reveal{ opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* aparición escalonada dentro de grillas de tarjetas */
.pillars > .reveal:nth-child(2),
.community__grid > .reveal:nth-child(2),
.quotes > .reveal:nth-child(2){ transition-delay:.12s; }
.pillars > .reveal:nth-child(3),
.community__grid > .reveal:nth-child(3),
.quotes > .reveal:nth-child(3){ transition-delay:.24s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 960px){
  .hero__grid{ grid-template-columns:1fr; }
  .hero__chart{ order:-1; }
  .vitals{ grid-template-columns:repeat(3, 1fr); }
  .vitals__item:nth-child(3n+1){ border-left:none; }
  .pillars{ grid-template-columns:1fr 1fr; }
  .community__grid{ grid-template-columns:1fr 1fr; }
  .axes{ grid-template-columns:1fr; }
  .timeline{ grid-template-columns:repeat(3, 1fr); row-gap:2rem; }
  .requirements__grid{ grid-template-columns:1fr; }
  .pricing__cards{ grid-template-columns:1fr; }
  .testimonials__intro{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:repeat(2, 1fr); }
  .stats__item:nth-child(2n+1){ border-left:none; }
  .quotes{ grid-template-columns:1fr; }
  .contact__grid{ grid-template-columns:1fr; }
  .site-footer__grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width: 720px){
  .site-nav{
    position:fixed; inset:64px 0 auto 0; z-index:40;
    background:var(--hueso);
    border-bottom:1px solid var(--line);
    padding:1rem clamp(1.25rem, 4vw, 2.5rem) 1.5rem;
    transform:translateY(-8px);
    opacity:0; visibility:hidden; pointer-events:none;
    transition:opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .site-nav.is-open{ opacity:1; transform:translateY(0); visibility:visible; pointer-events:auto; }
  .site-nav ul{ flex-direction:column; align-items:flex-start; gap:1rem; }
  .site-header__actions .btn--sm{ display:none; }
  .nav-toggle{ display:flex; }
  .pillars{ grid-template-columns:1fr; }
  .community__grid{ grid-template-columns:1fr; }
  .field-row{ grid-template-columns:1fr; }
  .site-footer__grid{ grid-template-columns:1fr; }
  .timeline{ grid-template-columns:repeat(2, 1fr); }
}