/* =========================================================================
   NEUROEXPERT DF — Design System
   Paleta: azul-marinho + bordô + branco + cinza muito claro.
   Diretriz de marca: sofisticação clínica, muito espaço em branco,
   sem gradientes, sem cards com sombra, sem ícones médicos genéricos.
   ========================================================================= */

:root {
  /* Cores de marca (azul-marinho extraído da identidade visual oficial) */
  --navy-900: #12233f;
  --navy-800: #1a325f;
  --navy-700: #223f74;
  --navy-100: #e8ecf2;

  --bordo-700: #6d1329;
  --bordo-600: #7f1730;
  --bordo-500: #94203c;
  --bordo-100: #f4e6e9;

  /* Cor secundária de marca (teal extraído por amostragem do logo oficial) */
  --teal-700: #078688;
  --teal-600: #0aa4a6;
  --teal-100: #e3f4f4;

  --white: #ffffff;
  --gray-50: #f7f6f4;
  --gray-100: #efeeeb;
  --gray-200: #e2e0dc;
  --gray-400: #a7a49d;
  --gray-600: #6b6862;

  --ink: #1e2126;
  --ink-soft: #4a4d53;

  /* Tipografia */
  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.95rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);
  --step-3: clamp(1.9rem, 1.5rem + 1.6vw, 2.6rem);
  --step-4: clamp(2.4rem, 1.8rem + 2.6vw, 3.6rem);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  --container: 1180px;
  --border-hair: 1px solid var(--gray-200);
  --focus-ring: 3px solid var(--bordo-500);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  color: var(--navy-900);
  margin: 0 0 var(--space-2);
}
h1 { font-size: var(--step-4); font-weight: 500; letter-spacing: -0.01em; }
h2 { font-size: var(--step-3); font-weight: 500; }
h3 { font-size: var(--step-2); font-weight: 600; }
h4 { font-size: var(--step-1); font-weight: 600; }
p { margin: 0 0 var(--space-2); color: var(--ink-soft); }
ul, ol { padding-left: 1.2em; color: var(--ink-soft); }
:focus-visible { outline: var(--focus-ring); outline-offset: 2px; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy-900);
  color: var(--white);
  padding: 0.8em 1.2em;
  z-index: 999;
}
.skip-link:focus { left: var(--space-2); top: var(--space-2); }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
.section { padding-block: var(--space-6); }
.section--tight { padding-block: var(--space-5); }
.section--muted { background: var(--gray-50); }
.section--navy { background: var(--navy-900); color: var(--gray-100); }
.section--navy h2, .section--navy h3 { color: var(--white); }
.section--navy p { color: var(--gray-200); }

.grid-2 {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}
@media (min-width: 880px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-2--reverse > :first-child { order: 2; }
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bordo-600);
  margin-bottom: var(--space-2);
}
.section--navy .eyebrow { color: #d9a3ad; }

.lede {
  font-size: var(--step-1);
  color: var(--ink-soft);
  max-width: 62ch;
}

.rule {
  border: none;
  border-top: var(--border-hair);
  margin: var(--space-5) 0;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ---------- Buttons / CTAs ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.95em 1.6em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--bordo-700); color: var(--white); }
.btn-primary:hover { background: var(--bordo-600); }
.btn-outline { border-color: var(--navy-900); color: var(--navy-900); background: transparent; }
.btn-outline:hover { background: var(--navy-900); color: var(--white); }
.section--navy .btn-outline { border-color: var(--white); color: var(--white); }
.section--navy .btn-outline:hover { background: var(--white); color: var(--navy-900); }
.btn-whatsapp { background: #1f5c3f; color: var(--white); }
.btn-whatsapp:hover { background: #17482f; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-3); }

/* ---------- Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: var(--border-hair);
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
}
.brand { display: flex; align-items: center; gap: 0.6em; text-decoration: none; }
.brand img { height: 38px; width: auto; }
@media (min-width: 960px) {
  .brand img { height: 46px; }
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  border-radius: 2px;
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle:not([aria-expanded="true"]) .icon-close { display: none; }

.primary-nav {
  display: none;
}
.primary-nav.is-open { display: block; }
.primary-nav ul {
  list-style: none;
  margin: 0; padding: var(--space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.primary-nav a {
  display: block;
  padding: 0.65rem 0.2rem;
  text-decoration: none;
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: 0.03em;
  color: var(--navy-900);
  border-bottom: 1px solid var(--gray-100);
}
.primary-nav a[aria-current="page"] { color: var(--bordo-700); }
.header-cta { display: none; }

@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .primary-nav { display: block; }
  .primary-nav ul { flex-direction: row; gap: 1.6rem; padding-top: 0; }
  .primary-nav a { border-bottom: none; padding: 0.3rem 0; position: relative; }
  .primary-nav a[aria-current="page"]::after,
  .primary-nav a:hover::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -4px;
    height: 2px;
    background: var(--bordo-600);
  }
  .site-header__bar { gap: var(--space-4); }
  .header-cta { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-5) var(--space-6);
}
.hero__eyebrow { color: var(--bordo-600); }
.hero h1 { margin-bottom: var(--space-2); }
.hero__lede { font-size: var(--step-1); max-width: 46ch; }
.hero__figure {
  border: var(--border-hair);
}
.hero__figure img { width: 100%; height: auto; }
.hero__caption {
  font-size: var(--step--1);
  color: var(--gray-600);
  margin-top: var(--space-1);
}

/* ---------- Sistema de fotografia (moldura com bloco de cor) ---------- */
/* Um único sistema visual para todas as fotos de pessoas: um bloco sólido
   de cor de marca desloca-se atrás da foto. 100% CSS — não gera nenhuma
   imagem nova, não altera peso nem qualidade dos arquivos. */
.photo-frame { position: relative; margin-bottom: 20px; }
.photo-frame::before {
  content: "";
  position: absolute;
  inset: 20px -20px -20px 20px;
  background: var(--navy-800);
  z-index: 0;
}
.photo-frame picture,
.photo-frame > img {
  position: relative;
  z-index: 1;
  display: block;
}
.photo-frame--teal::before { background: var(--teal-600); }
.photo-frame--bordo::before { background: var(--bordo-600); }
@media (max-width: 480px) {
  .photo-frame { margin-bottom: 12px; }
  .photo-frame::before { inset: 12px -12px -12px 12px; }
}

/* ---------- Faixa de credenciais (logo após o Hero) ---------- */
.stat-strip {
  border-top: var(--border-hair);
  border-bottom: var(--border-hair);
  background: var(--gray-50);
}
.stat-strip__grid {
  display: grid;
  gap: var(--space-3);
  padding-block: var(--space-3);
  text-align: center;
}
@media (min-width: 760px) {
  .stat-strip__grid { grid-template-columns: repeat(4, 1fr); text-align: left; }
  .stat-strip__item:not(:last-child) { border-right: var(--border-hair); padding-right: var(--space-3); }
}
.stat-strip__item strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--navy-900);
}
.stat-strip__item span {
  font-size: var(--step--1);
  color: var(--ink-soft);
}

/* ---------- Página hero (interna) ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-5) var(--space-4);
  border-bottom: var(--border-hair);
  background: var(--gray-50);
}
.page-hero::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -70px;
  width: 320px;
  height: 320px;
  background: url("../assets/logo/icon-motivo.png") no-repeat center / contain;
  opacity: 0.05;
  transform: translateY(-50%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { margin-bottom: var(--space-1); }
@media (max-width: 720px) {
  .page-hero::after { display: none; }
}
.breadcrumb {
  font-size: var(--step--1);
  color: var(--gray-600);
  margin-bottom: var(--space-2);
}
.breadcrumb a { color: var(--gray-600); text-decoration: underline; }

/* ---------- Cards mínimos (sem sombra, com regra fina) ---------- */
.plain-list { display: grid; gap: var(--space-4); }
@media (min-width: 720px) {
  .plain-list--3 { grid-template-columns: repeat(3, 1fr); }
  .plain-list--2 { grid-template-columns: repeat(2, 1fr); }
  .plain-list--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1040px) {
  .plain-list--4 { grid-template-columns: repeat(4, 1fr); }
}
.plain-item {
  border-top: 2px solid var(--navy-900);
  padding-top: var(--space-2);
}
.plain-item h3 { font-size: var(--step-1); margin-bottom: 0.4em; }
.plain-item--bordo { border-top-color: var(--bordo-600); }
.plain-item--teal { border-top-color: var(--teal-600); }

/* ---------- Seção "Para quem é" ---------- */
.audience-grid {
  display: grid;
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
}
@media (min-width: 760px) {
  .audience-grid { grid-template-columns: repeat(4, 1fr); }
}
.audience-item {
  background: var(--white);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.audience-item .n {
  font-family: var(--font-display);
  font-size: var(--step-2);
  color: var(--bordo-600);
}
.audience-item:nth-child(even) .n { color: var(--teal-700);
}
.audience-item a { font-weight: 600; text-decoration: none; color: var(--navy-900); }
.audience-item a:hover { text-decoration: underline; }

/* ---------- Exames ---------- */
.exam-block {
  padding-block: var(--space-4);
  border-bottom: var(--border-hair);
}
.exam-block:last-child { border-bottom: none; }
.exam-block h3 { margin-bottom: var(--space-1); }
.exam-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: var(--space-1) 0 var(--space-2);
}
.tag {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--navy-800);
  background: var(--navy-100);
  padding: 0.3em 0.7em;
  border-radius: 2px;
}

/* ---------- Callout / aviso ---------- */
.callout {
  border-left: 3px solid var(--bordo-600);
  background: var(--gray-50);
  padding: var(--space-3);
}
.callout p:last-child { margin-bottom: 0; }
.callout--navy { border-left-color: var(--navy-800); }
.callout--teal { border-left-color: var(--teal-600); background: var(--teal-100); }

/* ---------- FAQ / disclosure ---------- */
.faq-item { border-bottom: var(--border-hair); }
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: var(--step-1);
  padding: var(--space-2) 0;
  color: var(--navy-900);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 1.4em;
  color: var(--bordo-600);
  flex: none;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding-bottom: var(--space-2); }

/* ---------- Formulário de contato ---------- */
.form-grid { display: grid; gap: var(--space-3); }
@media (min-width: 700px) {
  .form-grid--2 { grid-template-columns: 1fr 1fr; }
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-weight: 600; font-size: var(--step--1); color: var(--navy-900); }
.field input, .field select, .field textarea {
  font: inherit;
  padding: 0.8em 0.9em;
  border: 1px solid var(--gray-400);
  border-radius: 2px;
  background: var(--white);
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: var(--focus-ring);
  outline-offset: 1px;
  border-color: var(--navy-800);
}
.field small { color: var(--gray-600); }
.form-consent { display: flex; gap: 0.6em; align-items: flex-start; font-size: var(--step--1); color: var(--ink-soft); }
.form-consent input { margin-top: 0.3em; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: var(--gray-200); border-top: 3px solid var(--teal-600); }
.site-footer a { color: var(--gray-200); text-decoration: none; }
.site-footer a:hover { color: var(--white); text-decoration: underline; }
.footer-grid {
  display: grid;
  gap: var(--space-4);
  padding-block: var(--space-5) var(--space-4);
}
@media (min-width: 820px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.footer-grid h4 { color: var(--white); font-family: var(--font-body); font-size: var(--step--1); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--space-2); }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.footer-brand img { height: 52px; width: auto; margin-bottom: var(--space-2); }
.footer-brand p { color: var(--gray-400); font-size: var(--step--1); max-width: 32ch; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-block: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  justify-content: space-between;
  font-size: var(--step--1);
  color: var(--gray-400);
}

/* ---------- WhatsApp flutuante ---------- */
.whatsapp-float {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  background: #1f5c3f;
  color: var(--white);
  text-decoration: none;
  padding: 0.85em 1.1em;
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--step--1);
  box-shadow: 0 2px 10px rgba(18, 35, 63, 0.25);
}
.whatsapp-float svg { width: 20px; height: 20px; flex: none; }
.whatsapp-float span.long { display: none; }
@media (min-width: 640px) {
  .whatsapp-float span.long { display: inline; }
}

/* ---------- Utilidades finais ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.small { font-size: var(--step--1); color: var(--gray-600); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}