/* ==========================================================================
   CRESBI — SITE INSTITUCIONAL
   Design system compartilhado por todas as páginas (home, analyzer,
   analyzer-varejo, sobre, contato).

   Os tokens de cor e tipografia abaixo são os MESMOS usados no site do
   CRESBI Analyzer (CRESBI ANALYZER/Site/styles.css), para que a marca
   fique coerente entre o institucional e os produtos. Não redefina esses
   valores em uma página individual — adicione componentes novos aqui.
   ========================================================================== */

:root {
  /* ---- cores de marca ---- */
  --ink: #0b1726;         /* azul-marinho quase preto — títulos e blocos escuros */
  --ink-soft: #14283b;
  --petrol: #155e63;      /* petróleo — cor de destaque */
  --petrol-dark: #10494d;
  --petrol-light: #8fc4c5;
  --cobalt: #315b8a;
  --mist: #dce5e8;
  --line: #c4d1d5;
  --paper: #f7f9fa;       /* fundo claro off-white */
  --white: #ffffff;
  --muted: #5b6c74;
  --positive: #28705c;
  --gold: #b7791f;
  --danger: #a5463a;

  /* ---- tipografia ---- */
  --font-display: Bahnschrift, "Roboto Condensed", "Arial Narrow", "Segoe UI", sans-serif;
  --font-body: "Segoe UI", Inter, Arial, sans-serif;

  /* ---- estrutura ---- */
  --container: 1240px;
  --container-narrow: 860px;
  --header-h: 76px;
  --section-y: clamp(64px, 8vw, 116px);
  --gutter: clamp(20px, 4vw, 44px);
  --transition: 220ms ease;
  --shadow-card: 0 24px 60px rgba(11, 23, 38, .12);
}

/* ---------------------------------------------------------------------- */
/* RESET / BASE                                                           */
/* ---------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 20px); }
body {
  margin: 0;
  color: var(--ink);
  background: #eef2f3; /* fundo externo levemente diferente do paper — profundidade discreta */
  font: 400 16px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea { font: inherit; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; letter-spacing: -.02em; }
h1 { font-size: clamp(2.35rem, 4.4vw, 4.35rem); line-height: 1.05; }
h2 { font-size: clamp(2.05rem, 3.6vw, 3.4rem); line-height: 1.08; }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); line-height: 1.15; }
p { color: var(--muted); }
ul, ol { margin: 0; padding: 0; list-style: none; }
strong { color: var(--ink); }

.container { width: min(var(--container), calc(100% - var(--gutter) * 2)); margin-inline: auto; }
.container-narrow { width: min(var(--container-narrow), calc(100% - var(--gutter) * 2)); margin-inline: auto; }

.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 10px 14px; background: var(--white); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
:focus-visible { outline: 3px solid rgba(49, 91, 138, .4); outline-offset: 3px; }

/* ---------------------------------------------------------------------- */
/* SEÇÕES — alternância claro / escuro                                    */
/* ---------------------------------------------------------------------- */
.section { position: relative; padding-block: var(--section-y); background: var(--paper); }
.section-tinted { background: #eef2f3; }
.section-dark { background: var(--ink); color: var(--white); }
.section-dark p { color: #aebdc3; }
.section-dark strong { color: var(--white); }

.eyebrow, .section-code {
  display: inline-block;
  margin-bottom: 18px;
  padding-top: 10px;
  border-top: 2px solid var(--petrol);
  color: var(--petrol);
  font: 700 .7rem/1.2 var(--font-display);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.section-dark .eyebrow, .section-dark .section-code, .eyebrow.light { color: var(--petrol-light); }

.section-heading { max-width: 760px; margin-bottom: clamp(40px, 6vw, 68px); }
.section-heading h2 { margin-bottom: 0; }
.section-heading .lead { max-width: 620px; margin-top: 16px; font-size: clamp(1rem, 1.4vw, 1.15rem); }
.section-dark .section-heading .lead { color: #aebdc3; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading.centered .eyebrow { border-top: 0; padding-top: 0; }

/* ---------------------------------------------------------------------- */
/* BOTÕES                                                                 */
/* ---------------------------------------------------------------------- */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 52px; padding: 14px 26px;
  border: 1px solid var(--petrol); background: var(--petrol); color: var(--white);
  text-decoration: none; white-space: nowrap;
  font: 700 .78rem/1 var(--font-display); letter-spacing: .04em;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
}
.button:hover { background: var(--ink); border-color: var(--ink); transform: translateY(-2px); }
.button-ghost { color: var(--ink); background: transparent; border-color: #aebfc5; }
.button-ghost:hover { color: var(--white); }
/* qualquer bloco de fundo escuro precisa do texto claro no botão fantasma —
   não só .section-dark, também manifesto/narrative/final-cta. Preenchimento
   padrão do :hover (var(--button:hover), fundo --ink) é quase invisível
   sobre um fundo que já é --ink, então o hover aqui usa petróleo. */
.section-dark .button-ghost,
.manifesto .button-ghost,
.narrative .button-ghost,
.final-cta .button-ghost { color: var(--white); border-color: rgba(255,255,255,.4); }
.section-dark .button-ghost:hover,
.manifesto .button-ghost:hover,
.narrative .button-ghost:hover,
.final-cta .button-ghost:hover { color: var(--white); background: var(--petrol); border-color: var(--petrol); }
.button-light { color: var(--ink); background: var(--white); border-color: var(--white); }
.button-light:hover { color: var(--white); background: var(--petrol); border-color: var(--petrol); }
.button-small { min-height: 42px; padding: 11px 18px; font-size: .69rem; }
.button-row { display: flex; gap: 12px; flex-wrap: wrap; }

.text-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--ink); text-decoration: none;
  font: 700 .76rem/1 var(--font-display); letter-spacing: .05em;
  padding-bottom: 4px; border-bottom: 2px solid var(--petrol);
  transition: gap var(--transition), color var(--transition);
}
.text-link:hover { gap: 12px; }
.text-link svg { width: 13px; height: 13px; flex: 0 0 auto; }
.section-dark .text-link, .on-dark .text-link { color: var(--white); }

/* ---------------------------------------------------------------------- */
/* HEADER                                                                 */
/* ---------------------------------------------------------------------- */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 200; height: var(--header-h);
  border-bottom: 1px solid transparent; background: transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.site-header.is-scrolled { background: rgba(247,249,250,.96); border-color: var(--line); box-shadow: 0 9px 26px rgba(11,23,38,.06); backdrop-filter: blur(6px); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 30px; }

.brand { display: inline-flex; align-items: center; text-decoration: none; flex: 0 0 auto; }
.brand-word { font: 700 1.15rem/1 var(--font-display); letter-spacing: .2em; color: var(--ink); }

.main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.main-nav a, .nav-item > button { position: relative; display: inline-flex; align-items: center; gap: 6px; color: #33464e; text-decoration: none; background: none; border: 0; padding: 0; cursor: pointer; font-size: .8rem; font-weight: 600; }
.main-nav > a::after, .nav-item > button::after { content: ""; position: absolute; right: 100%; bottom: -10px; left: 0; height: 2px; background: var(--petrol); transition: right var(--transition); }
.main-nav > a:hover::after, .nav-item:hover > button::after, .nav-item.is-open > button::after { right: 0; }
.nav-item { position: relative; }
.nav-item > button svg { width: 11px; height: 11px; transition: transform var(--transition); }
.nav-item.is-open > button svg { transform: rotate(180deg); }
.nav-dropdown {
  position: absolute; top: calc(100% + 18px); left: 50%; transform: translateX(-50%) translateY(-6px);
  width: 280px; padding: 8px; background: var(--white); border: 1px solid var(--line);
  box-shadow: 0 20px 44px rgba(11,23,38,.14); opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.nav-item:hover .nav-dropdown, .nav-item.is-open .nav-dropdown, .nav-item > button:focus-visible + .nav-dropdown { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.nav-dropdown a { display: block; padding: 13px 14px; text-decoration: none; border-left: 3px solid transparent; transition: border-color var(--transition), background var(--transition); }
.nav-dropdown a:hover { border-color: var(--petrol); background: #f2f6f6; }
.nav-dropdown a strong { display: block; color: var(--ink); font: 700 .82rem/1.2 var(--font-display); }
.nav-dropdown a span { display: block; margin-top: 3px; color: var(--muted); font-size: .72rem; }

.nav-toggle { display: none; width: 44px; height: 44px; margin-left: auto; border: 0; background: transparent; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 23px; height: 2px; margin: 5px auto; background: var(--ink); transition: var(--transition); }

.header-cta { flex: 0 0 auto; }

/* ---------------------------------------------------------------------- */
/* HERO                                                                   */
/* ---------------------------------------------------------------------- */
.hero { position: relative; padding: calc(var(--header-h) + 64px) 0 88px; background: var(--paper); overflow: hidden; }
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .5; background-size: 68px 68px;
  background-image: linear-gradient(#dce5e8 1px, transparent 1px), linear-gradient(90deg, #dce5e8 1px, transparent 1px);
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 78%, transparent);
}
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0,1.05fr) minmax(340px,.85fr); gap: clamp(40px, 6vw, 90px); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy h1 { max-width: 700px; margin-bottom: 22px; }
.hero-copy h1 .accent { display: block; color: var(--petrol); }
.hero-lead { max-width: 560px; color: #30434b; font-size: clamp(1.05rem, 1.6vw, 1.25rem); line-height: 1.5; margin-bottom: 30px; }
.hero-visual { position: relative; z-index: 1; }
.hero-visual svg { width: 100%; height: auto; }
.trust-line { display: flex; flex-wrap: wrap; margin-top: 30px; color: var(--muted); font-size: .72rem; }
.trust-line span { padding: 0 13px; border-left: 1px solid var(--line); }
.trust-line span:first-child { padding-left: 0; border-left: 0; }

/* ---------------------------------------------------------------------- */
/* MANIFESTO (bloco escuro)                                               */
/* ---------------------------------------------------------------------- */
.manifesto { padding-block: var(--section-y); background: var(--ink); color: var(--white); }
.manifesto-grid { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(280px,.75fr); gap: clamp(40px, 6vw, 90px); align-items: center; }
.manifesto h2 { max-width: 640px; margin-bottom: 26px; }
.manifesto-copy p { max-width: 540px; color: #c3d1d3; font-size: 1.02rem; line-height: 1.65; margin-bottom: 14px; }
.manifesto-copy p:last-of-type { margin-bottom: 0; color: var(--white); font-weight: 600; }
.manifesto-signals { display: grid; gap: 1px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.14); }
.manifesto-signals article { padding: 20px 22px; background: var(--ink-soft); }
.manifesto-signals span { display: block; color: var(--petrol-light); font: 700 .64rem/1 var(--font-display); letter-spacing: .1em; margin-bottom: 8px; }
.manifesto-signals p { margin: 0; color: #d6e0e3; font-size: .86rem; line-height: 1.45; }

/* ---------------------------------------------------------------------- */
/* PERGUNTAS — grid editorial                                             */
/* ---------------------------------------------------------------------- */
.questions-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.questions-grid article { padding: clamp(26px, 3vw, 38px) clamp(22px, 3vw, 32px); background: var(--paper); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.questions-grid .q-num { display: block; margin-bottom: 16px; color: #a5b6bc; font: 700 1.6rem/1 var(--font-display); }
.questions-grid p { margin: 0; color: var(--ink); font-size: 1.02rem; line-height: 1.4; font-weight: 600; }

/* ---------------------------------------------------------------------- */
/* SOLUÇÕES — dois grandes cards                                         */
/* ---------------------------------------------------------------------- */
.solutions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.solution-card {
  display: flex; flex-direction: column; padding: clamp(32px, 4vw, 48px);
  text-decoration: none; border: 1px solid var(--line);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.solution-card-dark { color: var(--white); background: var(--ink); border-color: var(--ink); border-left: 6px solid var(--petrol); }
.solution-card-light { color: var(--ink); background: var(--white); border-left: 6px solid var(--cobalt); }
.solution-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 22px; }
.solution-tag { color: var(--petrol-light); font: 700 .66rem/1 var(--font-display); letter-spacing: .12em; }
.solution-card-light .solution-tag { color: var(--petrol); }
.solution-index { color: rgba(255,255,255,.3); font: 700 .78rem/1 var(--font-display); }
.solution-card-light .solution-index { color: #b6c4c9; }
.solution-card h3 { font-size: clamp(1.7rem, 3vw, 2.3rem); line-height: 1.05; margin-bottom: 16px; }
.solution-card > p.solution-desc { max-width: 400px; margin-bottom: 24px; font-size: .95rem; line-height: 1.55; }
.solution-card-dark p.solution-desc { color: #c7d6d6; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.solution-tags span { padding: 7px 12px; font: 700 .62rem/1 var(--font-display); letter-spacing: .05em; border: 1px solid rgba(255,255,255,.25); color: #d6e0e3; }
.solution-card-light .solution-tags span { border-color: var(--line); color: #33464e; }
.solution-audience { margin-bottom: 26px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.16); font-size: .82rem; }
.solution-card-dark .solution-audience { color: #9fb1b7; }
.solution-card-light .solution-audience { border-top-color: var(--mist); color: var(--muted); }
.solution-cta { margin-top: auto; }

/* ---------------------------------------------------------------------- */
/* DIFERENCIAL — narrativa visual                                        */
/* ---------------------------------------------------------------------- */
.narrative { padding-block: var(--section-y); background: var(--ink); color: var(--white); overflow: hidden; }
.narrative-heading { max-width: 800px; margin-bottom: clamp(48px, 6vw, 76px); }
.narrative-heading h2 { max-width: 780px; }
.waterfall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; align-items: stretch; border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.waterfall-step { padding: clamp(24px, 3vw, 34px) clamp(18px, 2.4vw, 26px); border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); display: flex; flex-direction: column; }
.waterfall-step .wf-label { color: var(--petrol-light); font: 700 .62rem/1 var(--font-display); letter-spacing: .1em; margin-bottom: 14px; }
.waterfall-step .wf-value { font: 700 2.1rem/1 var(--font-display); margin-bottom: 8px; }
.waterfall-step .wf-value.negative { color: #e2a89f; }
.waterfall-step p { margin: 0; color: #aebdc3; font-size: .84rem; }
.waterfall-step ul { display: grid; gap: 8px; }
.waterfall-step li { position: relative; padding-left: 14px; color: #cddadb; font-size: .82rem; line-height: 1.4; }
.waterfall-step li::before { content: "—"; position: absolute; left: 0; color: var(--petrol-light); }
.waterfall-step.is-highlight { background: var(--petrol-dark); }
.narrative-close { margin-top: 40px; padding-left: 24px; border-left: 4px solid var(--petrol); font: 700 clamp(1.2rem, 2.2vw, 1.65rem)/1.4 var(--font-display); color: var(--white); max-width: 780px; }

/* ---------------------------------------------------------------------- */
/* COMO FUNCIONA — etapas                                                 */
/* ---------------------------------------------------------------------- */
.process-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.process-strip li { position: relative; min-height: 240px; padding: clamp(24px, 3vw, 34px); background: var(--white); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.process-strip li::after {
  content: ""; position: absolute; top: 44px; left: 100%; width: clamp(18px, 2vw, 30px); height: 2px; background: var(--line); z-index: 1;
}
.process-strip li:last-child::after { display: none; }
.process-strip .p-num { color: #a5b6bc; font: 700 2.6rem/1 var(--font-display); margin-bottom: 18px; }
.process-strip h3 { font-size: 1.15rem; margin-bottom: 8px; }
.process-strip p { margin: 0; font-size: .86rem; line-height: 1.5; }

/* ---------------------------------------------------------------------- */
/* FAIXA DE ASSINATURA — bloco institucional compacto                     */
/* ---------------------------------------------------------------------- */
.signature { padding-block: clamp(56px, 7vw, 92px); background: #eef2f3; border-block: 1px solid var(--line); }
.signature-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(240px,.65fr); gap: clamp(36px, 5vw, 70px); align-items: center; }
.signature h2 { max-width: 560px; margin-bottom: 16px; }
.signature p.lead { max-width: 540px; }
.signature-pillars { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
.signature-pillars span { padding: 18px 0; border-bottom: 1px solid var(--line); color: var(--ink); font: 700 1.05rem/1 var(--font-display); letter-spacing: .04em; }

/* ---------------------------------------------------------------------- */
/* CTA FINAL                                                              */
/* ---------------------------------------------------------------------- */
.final-cta { padding-block: var(--section-y); background: var(--ink); color: var(--white); }
.final-cta-inner { max-width: 760px; }
.final-cta h2 { margin-bottom: 18px; }
.final-cta p { max-width: 560px; color: #c3d1d3; margin-bottom: 32px; font-size: 1.05rem; }

/* ---------------------------------------------------------------------- */
/* FOOTER — minimalista                                                   */
/* ---------------------------------------------------------------------- */
.site-footer { padding: 48px 0 26px; color: #d8e1e4; background: var(--ink); border-top: 1px solid rgba(255,255,255,.1); }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,.14); }
.footer-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.footer-brand-copy { display: grid; line-height: 1.3; }
.footer-brand-copy strong { font: 700 1rem/1 var(--font-display); letter-spacing: .16em; color: var(--white); }
.footer-brand-copy small { margin-top: 6px; color: var(--petrol-light); font: 700 .6rem/1 var(--font-display); letter-spacing: .1em; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-nav a { color: #c0ccd0; text-decoration: none; font-size: .78rem; font-weight: 600; }
.footer-nav a:hover { color: var(--petrol-light); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 22px; color: #738991; font-size: .68rem; }

/* ---------------------------------------------------------------------- */
/* PÁGINAS INTERNAS — cabeçalho de página simples                         */
/* ---------------------------------------------------------------------- */
.page-hero { padding: calc(var(--header-h) + 60px) 0 60px; background: var(--paper); }
.page-hero .eyebrow { margin-bottom: 20px; }
.page-hero h1 { max-width: 760px; }
.page-hero p.lead { max-width: 620px; margin-top: 18px; font-size: 1.1rem; }
.page-hero .button-row { margin-top: 28px; }

.manifesto-note { max-width: 760px; }
.manifesto-note p { max-width: 640px; color: #c3d1d3; font-size: 1.05rem; line-height: 1.65; }
.breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 24px; color: var(--muted); font-size: .78rem; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--petrol); }

.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.info-grid > div { padding: clamp(24px, 3vw, 34px); background: var(--white); }
.info-grid h3 { font-size: 1.1rem; margin-bottom: 10px; }
.info-grid p { margin: 0; font-size: .9rem; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 70px); align-items: start; }
.contact-methods { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.contact-method { display: flex; gap: 16px; align-items: flex-start; padding: 24px; background: var(--white); text-decoration: none; transition: background var(--transition); }
.contact-method:hover { background: #f2f6f6; }
.contact-method .c-icon { flex: 0 0 auto; width: 42px; height: 42px; display: grid; place-items: center; background: #eaf1f1; color: var(--petrol); }
.contact-method .c-icon svg { width: 20px; height: 20px; }
.contact-method h3 { font-size: 1rem; margin-bottom: 4px; color: var(--ink); }
.contact-method p { margin: 0; font-size: .84rem; }

.checklist { display: grid; border-top: 1px solid var(--line); }
.checklist li { padding: 18px 0; border-bottom: 1px solid var(--line); color: var(--ink); font: 700 .95rem/1.45 var(--font-display); }

/* ---------------------------------------------------------------------- */
/* ANIMAÇÃO DE ENTRADA                                                    */
/* ---------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------------------------------------------------------------------- */
/* RESPONSIVO                                                             */
/* ---------------------------------------------------------------------- */
@media (max-width: 1160px) {
  :root { --container: 980px; }
  .header-cta { display: none; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 620px; }
  .manifesto-grid { grid-template-columns: 1fr; }
  .waterfall { grid-template-columns: repeat(2, 1fr); }
  .process-strip { grid-template-columns: repeat(2, 1fr); }
  .process-strip li::after { display: none; }
  .signature-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  :root { --header-h: 68px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; inset: var(--header-h) 0 auto; z-index: 150;
    display: grid; gap: 4px; padding: 18px var(--gutter) 30px; max-height: calc(100vh - var(--header-h));
    overflow-y: auto; background: var(--white); border-bottom: 1px solid var(--line);
    transform: translateY(-140%); opacity: 0; pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .main-nav > a, .nav-item > button { justify-content: space-between; width: 100%; padding: 14px 0; border-bottom: 1px solid var(--mist); font-size: .92rem; }
  .main-nav > a::after, .nav-item > button::after { display: none; }
  .nav-item { width: 100%; }
  .nav-dropdown { position: static; width: 100%; transform: none; opacity: 1; pointer-events: auto; box-shadow: none; border: 0; display: none; padding: 0 0 8px; }
  .nav-item.is-open .nav-dropdown { display: block; }
  .nav-open .main-nav { transform: none; opacity: 1; pointer-events: auto; }
  .nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .questions-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: 1fr; }
  .waterfall { grid-template-columns: 1fr; }
  .process-strip { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --gutter: 18px; --section-y: 58px; }
  body { font-size: 15.5px; }
  h1 { font-size: clamp(2.1rem, 9vw, 3rem); }
  .hero { padding-top: calc(var(--header-h) + 40px); }
  .hero-copy h1 { max-width: 100%; }
  .hero-lead { max-width: 100%; }
  .button-row .button { width: 100%; }
  .trust-line { display: grid; gap: 7px; }
  .trust-line span { padding: 0; border: 0; }
  .questions-grid { grid-template-columns: 1fr; }
  .manifesto-signals { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}