/* =========================================================
   Design Tokens — Dra. Maria Elisa S. Oliveira
   Baseado em /ui-guide/guia-ui-webdesign-dra-maria-elisa.md
   Território: elegância clínica e discreta (cinza · bege · off-white)
   ========================================================= */

:root {
  /* ── Cores de Marca ── */
  --color-primary:        #606060;   /* cinza escuro */
  --color-accent:         #d3cabe;   /* bege escuro */
  --color-background:     #f0ede6;   /* off-white / bege claro */

  /* ── Cores Funcionais ── */
  --color-primary-dark:   #3a3a3a;
  --color-text:           #3a3a3a;
  --color-text-muted:     #888888;
  --color-border:         #e0dbd3;
  --color-surface:        #ffffff;
  --color-overlay:        rgba(60, 60, 60, 0.72);
  --color-success:        #5a7a5a;
  --color-error:          #8a4a4a;

  /* ── Tipografia ── */
  --font-serif:   'Playfair Display', Georgia, serif;
  --font-sans:    'Poppins', system-ui, sans-serif;
  /* Aliases de convenção do workspace */
  --font-display: var(--font-serif);
  --font-body:    var(--font-sans);

  --text-xs:    0.688rem;   /* 11px */
  --text-sm:    0.813rem;   /* 13px */
  --text-base:  1rem;       /* 16px */
  --text-md:    1.125rem;   /* 18px */
  --text-lg:    1.25rem;    /* 20px */
  --text-xl:    1.5rem;     /* 24px */
  --text-2xl:   1.875rem;   /* 30px */
  --text-3xl:   2.375rem;   /* 38px */
  --text-4xl:   3rem;       /* 48px */

  /* ── Espaçamento ── */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* ── Bordas ── */
  --radius-sm:  2px;
  --radius-md:  4px;
  --radius-full: 50%;

  /* ── Sombras ── */
  --shadow-card:       0 2px 8px rgba(60, 60, 60, 0.07);
  --shadow-card-hover: 0 4px 16px rgba(60, 60, 60, 0.12);

  /* ── Transições ── */
  --transition-fast:   0.15s ease;
  --transition-base:   0.2s ease;
  --transition-slow:   0.35s ease;

  /* ── Container ── */
  --container-max:     1200px;
}

/* Reset tipográfico */
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Escala tipográfica
   Playfair Display → nome da doutora e títulos de alto impacto (nunca uppercase)
   Poppins          → todo o restante (labels em uppercase controlado) */
/* Cor dos títulos e labels é definida no markup (seções claras × escuras) */
.t-hero {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 2.4vw + 1.1rem, 3rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.t-h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 1.2vw + 1rem, 2.375rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.t-h3 {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  line-height: 1.4;
  font-weight: 500;
}
.t-label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: 1.4;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.t-body-lg { font-size: var(--text-md);   line-height: 1.6;  font-weight: 400; }
.t-body    { font-size: var(--text-base); line-height: 1.7;  font-weight: 400; }
.t-small   { font-size: var(--text-sm);   line-height: 1.6;  font-weight: 400; }
.t-micro {
  font-size: var(--text-xs);
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Ornamento de seção — linha curta em bege sob títulos.
   Assinatura visual da marca (substitui marcadores geométricos de
   outros projetos do estúdio). */
.ornament {
  display: block;
  width: 40px;
  height: 1.5px;
  background-color: var(--color-accent);
  margin: var(--space-3) 0 var(--space-6);
}
.ornament--center { margin-left: auto; margin-right: auto; }

/* Pull-quote da bio — serif itálico com filete bege à esquerda */
.quote-emph {
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-5);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-md);
  line-height: 1.6;
  color: var(--color-primary-dark);
}

/* Botões — quase retos (radius 2px), uppercase Poppins 500 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-background);
  border: 1.5px solid var(--color-primary);
}
.btn-primary:hover  { background-color: var(--color-primary-dark); border-color: var(--color-primary-dark); }

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-secondary:hover { background-color: var(--color-primary); color: var(--color-background); }

.btn-ghost {
  background-color: transparent;
  color: var(--color-background);
  border: 1.5px solid var(--color-background);
}
.btn-ghost:hover { background-color: rgba(240, 237, 230, 0.12); }

.btn-sm { padding: 10px 18px; font-size: 0.8125rem; letter-spacing: 1.2px; }

/* Navbar — transparente sobre o hero claro (texto escuro),
   cinza escuro após rolagem (texto off-white) */
.nav {
  position: fixed; inset: 0 0 auto 0;
  height: 72px;
  z-index: 50;
  display: flex; align-items: center;
  transition: background-color 300ms ease, box-shadow 300ms ease, color 200ms ease;
  background-color: transparent;
  color: var(--color-primary-dark);
}
.nav.is-scrolled {
  background-color: var(--color-primary);
  box-shadow: 0 1px 0 rgba(240, 237, 230, 0.08);
  color: var(--color-background);
}
.nav-link {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: currentColor;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav-link:hover { color: var(--color-primary); }
.nav.is-scrolled .nav-link:hover { color: var(--color-accent); }

/* Monograma: versão escura sobre hero claro; clara após rolagem */
.nav-logo-dark  { display: block; }
.nav-logo-light { display: none; }
.nav.is-scrolled .nav-logo-dark  { display: none; }
.nav.is-scrolled .nav-logo-light { display: block; }

/* Bloco de marca no header — monograma + nome (guia §7.1) */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: currentColor;
  min-width: 0;
}
.nav-brand img { height: 44px; width: 44px; flex-shrink: 0; }
.nav-name {
  display: block;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.2;
  letter-spacing: 0.5px;
  color: currentColor;
  transition: color var(--transition-base);
  white-space: nowrap;
}
.nav.is-scrolled .nav-name { color: var(--color-accent); }
.nav-cred {
  display: block;
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  opacity: 0.75;
  line-height: 1.3;
  white-space: nowrap;
}

/* Botão do CTA no nav muda de tom junto com o fundo */
.nav .nav-cta { border-color: var(--color-primary); color: var(--color-primary); background: transparent; }
.nav .nav-cta:hover { background-color: var(--color-primary); color: var(--color-background); }
.nav.is-scrolled .nav-cta { border-color: var(--color-background); color: var(--color-background); }
.nav.is-scrolled .nav-cta:hover { background-color: rgba(240, 237, 230, 0.12); }

/* Cards de patologia */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
@media (prefers-reduced-motion: reduce) {
  .card:hover { transform: none; }
}

/* Ícone circular de patologia — ecoa a geometria do monograma ME */
.patho-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background-color: var(--color-background);
  flex-shrink: 0;
}
.patho-icon img { width: 28px; height: 28px; display: block; }

/* CTA em texto com seta (dentro dos cards) */
.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-sans);
  text-transform: uppercase;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 1.5px;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}
.cta-link:hover { color: var(--color-primary-dark); }
.cta-link svg { transition: transform 280ms ease; flex-shrink: 0; }
.cta-link:hover svg { transform: translateX(4px); }
@media (prefers-reduced-motion: reduce) {
  .cta-link:hover svg { transform: none; }
}

/* Moldura offset da foto da bio — contorno bege deslocado */
.photo-frame { position: relative; display: block; }
.photo-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translate(12px, 12px);
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-md);
  z-index: -1;
  pointer-events: none;
}
.photo-frame img {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* FAQ — accordion nativo <details> */
details.faq { border-bottom: 1px solid var(--color-border); }
details.faq > summary {
  list-style: none;
  cursor: pointer;
  padding: 1.05rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  line-height: 1.45;
}
details.faq > summary::-webkit-details-marker { display: none; }
details.faq > summary .chev {
  flex: 0 0 auto;
  width: 1.25rem; height: 1.25rem;
  margin-top: 0.18rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: 0.85rem;
  line-height: 1;
  transition: transform var(--transition-base), background-color var(--transition-base), color var(--transition-base);
}
details.faq[open] > summary .chev {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: var(--color-background);
}
details.faq > .answer {
  padding: 0 0 1.25rem 2.15rem;
  color: var(--color-text);
  line-height: 1.7;
  font-size: 0.97rem;
}
details.faq > .answer p + p { margin-top: 0.75rem; }
@media (min-width: 768px) {
  details.faq > summary { font-size: 1.02rem; padding: 1.2rem 0; }
  details.faq > .answer { font-size: 1rem; }
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 400ms ease-out, transform 400ms ease-out;
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Mobile drawer */
.drawer {
  position: fixed; inset: 0 0 0 auto;
  width: min(85vw, 320px);
  background-color: var(--color-primary);
  color: var(--color-background);
  transform: translateX(100%);
  transition: transform 300ms ease;
  z-index: 60;
  padding: 5rem 2rem 2rem;
  display: flex; flex-direction: column; gap: 1.5rem;
}
.drawer.is-open { transform: translateX(0); }
.drawer a {
  color: var(--color-background);
  font-size: var(--text-base);
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
}
.drawer a:hover { color: var(--color-accent); }
.drawer-backdrop {
  position: fixed; inset: 0;
  background: rgba(58, 58, 58, 0.4);
  opacity: 0; pointer-events: none;
  transition: opacity 300ms ease;
  z-index: 55;
}
.drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }
@media (prefers-reduced-motion: reduce) {
  .drawer, .drawer-backdrop { transition: none; }
}

/* Footer */
.footer-inner { text-align: left; }
.footer-logo {
  display: block;
  width: min(240px, 72vw);
  height: auto;
}
.footer-legal {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
  text-align: left;
}
.footer-legal-text { color: rgba(240, 237, 230, 0.55); }
.footer-link {
  color: rgba(240, 237, 230, 0.85);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-link:hover { color: var(--color-accent); }
@media (min-width: 1024px) {
  .footer-inner {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: center;
    gap: 4rem;
  }
  .footer-legal {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 4rem;
    margin-top: 0;
  }
}

/* Acessibilidade — skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-primary); color: var(--color-background);
  padding: 0.75rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }

/* Foco visível geral */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}