/* ============================================================
   CAIS — Clínica de Atenção Integral à Saúde
   Design system: DESIGN.md (Areia · Duna · Lagoa · Noite · Ouro)
   Light-first; dark = inversão documentada no design system.
   ============================================================ */

/* ---------- Fontes (self-hosted, subset latin) ---------- */
@font-face {
  font-family: "Fraunces";
  src: url("assets/fonts/fraunces-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("assets/fonts/fraunces-600i.woff2") format("woff2");
  font-weight: 600;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("assets/fonts/fraunces-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces Soft";
  src: url("assets/fonts/fraunces-soft-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("assets/fonts/ss3-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("assets/fonts/ss3-400i.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("assets/fonts/ss3-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("assets/fonts/ss3-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  color-scheme: light;

  --areia: #efe7d8;
  --duna: #d8cbaf;
  --lagoa: #0e6152;
  --noite: #1c1b17;
  --ouro: #a6904e;

  --surface: var(--areia);
  --surface-container: #f7f3ec;
  --surface-dim: #e7ddca;
  --on-surface: var(--noite);
  --on-surface-variant: #66625b;
  --primary: var(--lagoa);
  --on-primary: var(--areia);
  --primary-hover: #105649;
  --outline: var(--duna);

  --display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --body: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;

  --content-max: 1120px;
  --margin: 32px;

  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Inversão documentada no design system. A marca é light-first: o modo
   escuro NÃO segue o sistema; só ativa com <html data-theme="dark">. */
:root[data-theme="dark"] {
  color-scheme: dark;
    --surface: #1c1b17;
    --surface-container: #292723;
    --surface-dim: #22211c;
    --on-surface: #efe7d8;
    --on-surface-variant: #9b958b;
    --primary: #5d9081; /* Lagoa clareada: a Lagoa pura reprova sobre Noite */
    --on-primary: #1c1b17;
    --primary-hover: #6da295;
    --outline: #47443e;
}

/* ---------- Base ---------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

.wrap {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--margin);
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  text-wrap: balance;
}

::selection {
  background: var(--lagoa);
  color: var(--areia);
}

/* ---------- Reveal on scroll (desliga sob reduced motion) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
    transition-delay: var(--d, 0s);
  }
  .reveal.in {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.nav.scrolled {
  border-bottom-color: var(--outline);
}
.nav-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-brand .simbolo {
  width: auto;
  height: 38px;
}
.nav-brand span {
  font-family: var(--display);
  font-weight: 400;
  font-size: 19px;
  letter-spacing: 0.06em;
  margin-right: -0.06em;
  transform: translateY(1px); /* centro óptico com o símbolo */
  white-space: nowrap;
}
.nav-brand .logo-dark {
  display: none;
}
:root[data-theme="dark"] .nav-brand .logo-light {
  display: none;
}
:root[data-theme="dark"] .nav-brand .logo-dark {
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--on-surface);
  padding-block: 4px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}
.nav-links a:hover {
  border-bottom-color: var(--primary);
}
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 0;
  cursor: pointer;
}
.nav-burger span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--on-surface);
  transition: transform 0.3s var(--ease);
}
.nav.open .nav-burger span:first-child {
  transform: translateY(4.25px) rotate(45deg);
}
.nav.open .nav-burger span:last-child {
  transform: translateY(-4.25px) rotate(-45deg);
}

@media (max-width: 799px) {
  .nav-burger { display: flex; }
  .nav-links {
    /* absolute, não fixed: o backdrop-filter da nav vira containing block */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: calc(100dvh - 72px);
    overflow-y: auto;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 40px 32px;
    visibility: hidden;
    opacity: 0;
  }
  .nav-links a {
    font-size: 17px;
    padding-block: 10px;
  }
  .nav.open .nav-links {
    visibility: visible;
    opacity: 1;
  }
  @media (prefers-reduced-motion: no-preference) {
    .nav-links {
      transform: translateY(8px);
      transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
    }
    .nav.open .nav-links {
      transform: none;
    }
  }
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 9999px;
  padding: 14px 28px;
  font-family: var(--body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s var(--ease), transform 0.15s var(--ease);
}
.btn:active {
  transform: scale(0.98);
}
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
}
.link-quiet {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface);
  text-decoration: none;
  border-bottom: 1.5px solid var(--outline);
  padding-bottom: 3px;
  transition: border-color 0.25s var(--ease);
}
.link-quiet:hover {
  border-bottom-color: var(--primary);
}

/* ---------- Hero ---------- */
.hero {
  min-height: calc(100dvh - 72px);
  display: grid;
  align-items: center;
  padding-block: 48px 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.5rem, 4.8vw, 3.85rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  padding-bottom: 4px; /* clearance p/ descendente do itálico "vínculo" */
}
.hero h1 em {
  font-style: italic;
  color: var(--primary);
}
.hero-sub {
  margin-top: 24px;
  font-size: 18px;
  line-height: 1.65;
  color: var(--on-surface-variant);
  max-width: 54ch;
}
.hero-sub em {
  font-style: italic;
  color: var(--on-surface);
}
.hero-actions {
  margin-top: 40px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}
.hero-media {
  position: relative;
}
.hero-media img {
  width: 100%;
  height: min(74vh, 640px);
  object-fit: cover;
  object-position: center top; /* retrato: preservar o topo do cabelo no crop */
  border-radius: var(--r-xl);
}
@media (max-width: 899px) {
  .hero {
    min-height: 0;
    padding-block: 40px 56px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-media img {
    height: min(52vh, 440px);
  }
}

/* ---------- Seções ---------- */
section {
  padding-block: 96px;
}
@media (max-width: 899px) {
  section {
    padding-block: 64px;
  }
}

.label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

/* Filosofia: coluna editorial */
.filosofia .label {
  margin-bottom: 20px;
}
.filosofia h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  max-width: 24ch;
}
.filosofia .prose {
  margin-top: 40px;
  max-width: 66ch;
  display: grid;
  gap: 24px;
}
.filosofia .prose p {
  font-size: 18px;
  line-height: 1.65;
}
.filosofia .prose em {
  color: var(--primary);
}
.arc {
  width: 96px;
  margin-top: 48px;
  color: var(--outline);
}

/* Pull quote: faixa de água */
.quote-band {
  position: relative;
  padding-block: 128px;
  isolation: isolate;
  overflow: hidden;
}
.quote-band img.bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 72%; /* mostrar dunas e lagoa, não só céu */
  z-index: -2;
}
.quote-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(28, 27, 23, 0.62), rgba(28, 27, 23, 0.5));
  z-index: -1;
}
.quote-band blockquote {
  max-width: 780px;
}
.quote-band blockquote p {
  font-family: "Fraunces Soft", var(--display);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.3;
  color: var(--areia);
  text-wrap: balance;
}
.quote-band cite {
  display: block;
  margin-top: 28px;
  font-style: normal;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--areia) 78%, transparent);
}

/* Pilares: trilho esquerdo fixo + fluxo à direita */
.pilares-grid {
  display: grid;
  grid-template-columns: 4fr 1fr 7fr;
  align-items: start;
}
.pilares-intro {
  position: sticky;
  top: 112px;
}
.pilares-intro h2 {
  font-size: clamp(2rem, 3.4vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.pilares-intro p {
  margin-top: 20px;
  font-size: 17px;
  color: var(--on-surface-variant);
  max-width: 34ch;
}
.pilares-list {
  grid-column: 3;
  list-style: none;
  display: grid;
  gap: 56px;
}
.pilar h3 {
  font-size: 25px;
  line-height: 1.2;
}
.pilar p {
  margin-top: 10px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--on-surface-variant);
  max-width: 52ch;
}
.pilar .arc {
  width: 64px;
  margin: 0 0 14px;
}
.pilar:last-child h3 em {
  font-style: normal;
  color: var(--primary);
}
@media (max-width: 899px) {
  .pilares-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .pilares-intro {
    position: static;
  }
  .pilares-list {
    grid-column: 1;
    gap: 44px;
  }
}

/* A clínica */
.clinica {
  background: var(--surface-dim);
}
.clinica-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 64px;
  align-items: center;
}
.clinica-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 62%; /* priorizar bancada sobre o teto no crop 4:3 */
  border-radius: var(--r-lg);
}
.clinica h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  max-width: 22ch;
}
.modalidades {
  margin-top: 32px;
  display: flex;
  align-items: baseline;
  gap: 24px;
}
.modalidades .sep {
  width: 1px;
  height: 28px;
  background: var(--outline);
  align-self: center;
}
.modalidades span {
  font-family: var(--display);
  font-weight: 600;
  font-size: 20px;
}
.clinica .label {
  margin-top: 40px;
}
.chips {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
}
.chips li {
  border: 1px solid var(--outline);
  border-radius: 9999px;
  padding: 7px 16px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--on-surface);
}
@media (max-width: 899px) {
  .clinica-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Atendimento: colagem de 3 fotos — sala alta à esquerda,
   recepção e cadeira de exame empilhadas à direita */
.clinica-collage {
  display: grid;
  grid-template-columns: 3fr 2fr;
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  aspect-ratio: 10 / 11;
}
.clinica-collage img {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center;
  border-radius: var(--r-md);
}
.clinica-collage .collage-tall {
  grid-row: 1 / 3;
  border-radius: var(--r-lg);
  object-position: center 30%; /* quadros e poltronas, sem teto */
}
.clinica-collage .collage-cadeira {
  object-position: center 38%; /* quadros e encosto da cadeira no recorte menor */
}

/* Atendimento: parágrafo entre modalidades e link */
.prose-clinica {
  margin-top: 32px;
  max-width: 56ch;
}
.prose-clinica p {
  font-size: 17px;
  line-height: 1.65;
  color: var(--on-surface-variant);
}
.clinica .link-quiet {
  display: inline-block;
  margin-top: 32px;
}

/* CTA final */
.cta-final {
  padding-block: 128px;
  text-align: center;
}
.cta-final h2 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  max-width: 18ch;
  margin-inline: auto;
}
.cta-final .btn {
  margin-top: 44px;
}
.cta-final .arc {
  margin: 0 auto 40px;
  color: var(--outline);
}

/* Footer: Noite nos dois modos */
.footer {
  background: var(--noite);
  color: #9b958b;
  padding-block: 72px 48px;
}
.footer-grid {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 48px;
  align-items: end;
}
.footer img {
  width: auto;
  height: 90px;
}
.footer address {
  font-style: normal;
  font-size: 14px;
  line-height: 1.7;
}
.footer address strong {
  color: var(--areia);
  font-weight: 500;
}
.footer a {
  color: var(--areia);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid #47443e;
  padding-bottom: 3px;
  transition: border-color 0.25s var(--ease);
}
.footer a:hover {
  border-bottom-color: #5d9081;
}
.footer-links {
  list-style: none;
  display: grid;
  gap: 14px;
  justify-items: start;
}
.footer-meta {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid #2e2c27;
  font-size: 12px;
  letter-spacing: 0.04em;
}
@media (max-width: 899px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: start;
  }
  .footer-grid a {
    justify-self: start;
  }
}
