/* ---------------------------------------------------------------
   Dra. Ana Luiza Tavares Menezes — Nefrologia
   Paleta: branco / verde-água, tipografia sans-serif, muito respiro
---------------------------------------------------------------- */

:root {
  --bg:            #ffffff;
  --bg-alt:        #f6f9f8;
  --bg-tint:       #eef5f3;
  --ink:           #0f1c1a;
  --ink-soft:      #445955;
  --ink-mute:      #71857f;
  --accent:        #2e8b7f;
  --accent-dark:   #216a60;
  --accent-deep:   #123f39;
  --accent-wash:   #dceeea;
  --line:          #e2eae8;
  --white:         #ffffff;

  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(15, 28, 26, .05), 0 4px 12px rgba(15, 28, 26, .04);
  --shadow:    0 2px 6px rgba(15, 28, 26, .05), 0 16px 40px rgba(15, 28, 26, .07);

  --wrap: 1140px;
  --gap:  clamp(1.5rem, 4vw, 3rem);
  --pad-section: clamp(4rem, 9vw, 7.5rem);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--accent-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-deep); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 {
  margin: 0 0 .6em;
  line-height: 1.18;
  letter-spacing: -.02em;
  font-weight: 600;
}

h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.1rem; letter-spacing: -.01em; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

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

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 999;
  background: var(--accent-deep); color: #fff;
  padding: .7rem 1.1rem; border-radius: var(--radius-sm);
  text-decoration: none; font-weight: 500;
  transition: top .18s ease;
}
.skip-link:focus { top: 1rem; color: #fff; }

/* ---------- layout ---------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}
.wrap-narrow { max-width: 760px; }

.section { padding-block: var(--pad-section); }
.section-alt  { background: var(--bg-alt); }
.section-tint { background: var(--bg-tint); }

.grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}
@media (min-width: 860px) {
  .grid-2 { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(3rem, 7vw, 6rem); }
}

.section-head { max-width: 640px; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.section-sub { color: var(--ink-soft); font-size: 1.05rem; }

.eyebrow {
  margin: 0 0 .9rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow-light { color: var(--accent-wash); }

.prose { color: var(--ink-soft); font-size: 1.05rem; }
.prose strong { color: var(--ink); font-weight: 600; }

.note {
  margin-top: 1.5rem;
  font-size: .9rem;
  color: var(--ink-mute);
  border-left: 2px solid var(--line);
  padding-left: 1rem;
}

/* ---------- botões ---------- */

.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .95rem 1.6rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit; font-weight: 500; font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: .6rem 1.2rem; font-size: .94rem; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }

.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--accent); color: var(--accent-dark); }

.btn-light { background: #fff; color: var(--accent-deep); }
.btn-light:hover { background: var(--accent-wash); color: var(--accent-deep); }

/* ---------- cabeçalho ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-stuck { border-bottom-color: var(--line); box-shadow: var(--shadow-sm); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  min-height: 74px;
}

.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--ink); }
.brand-mark { color: var(--accent); display: flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: .98rem; font-weight: 600; letter-spacing: -.01em; }
.brand-text span { font-size: .78rem; color: var(--ink-mute); letter-spacing: .06em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2rem); }
.nav ul { display: flex; flex-wrap: nowrap; gap: clamp(.9rem, 2vw, 1.7rem); list-style: none; margin: 0; padding: 0; }
.nav a {
  color: var(--ink-soft); text-decoration: none;
  font-size: .95rem; font-weight: 500;
  padding: .3rem 0;
  white-space: nowrap;
  border-bottom: 1.5px solid transparent;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }
.nav .nav-cta { color: #fff; border-bottom: 0; white-space: nowrap; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--line);
  border-radius: var(--radius-sm); cursor: pointer;
}
.nav-toggle-bars { display: grid; gap: 4px; }
.nav-toggle-bars span { display: block; width: 18px; height: 1.8px; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.8px) rotate(-45deg); }

@media (max-width: 1080px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute; inset: 74px 0 auto;
    display: none;
    flex-direction: column; align-items: stretch;
    gap: 0;
    padding: 1rem clamp(1.25rem, 5vw, 2.5rem) 1.75rem;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .nav.is-open { display: flex; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav li + li { border-top: 1px solid var(--line); }
  .nav ul a { display: block; padding: .9rem 0; font-size: 1.02rem; border-bottom: 0; }
  .nav .nav-cta { margin-top: 1.1rem; justify-content: center; }
}

/* ---------- hero ---------- */

.hero {
  padding-block: clamp(3rem, 7vw, 6rem) clamp(3.5rem, 8vw, 6.5rem);
  background:
    radial-gradient(90% 70% at 85% 0%, var(--accent-wash) 0%, rgba(255,255,255,0) 60%),
    var(--bg);
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 4rem);
  align-items: center;
}
@media (min-width: 900px) {
  .hero-inner { grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); }
}

.hero-copy .lead {
  font-size: clamp(1.05rem, 1.8vw, 1.22rem);
  color: var(--ink-soft);
  max-width: 34em;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero-meta {
  margin-top: 1.8rem;
  font-size: .9rem;
  color: var(--ink-mute);
  display: flex; flex-wrap: wrap; align-items: center; gap: .55rem;
}
.hero-meta .dot { color: var(--line); }

.hero-photo {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #0b0b0b;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.hero-photo img[data-missing] { display: none; }
.hero-photo::after {
  content: "Foto da Dra. Ana Luiza";
  position: absolute; inset: 0;
  display: none;
  align-items: center; justify-content: center;
  color: var(--accent-dark); font-size: .95rem; letter-spacing: .02em;
}
.hero-photo.is-empty::after { display: flex; }

/* ---------- cards ---------- */

.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.7rem 1.6rem;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.card h3 { color: var(--ink); margin-bottom: .5rem; }
.card p { color: var(--ink-soft); font-size: .97rem; margin: 0; }

/* ---------- checklist ---------- */

.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: .1rem; }
.checklist li {
  position: relative;
  padding: .85rem 0 .85rem 2.2rem;
  color: var(--ink-soft);
  border-bottom: 1px solid rgba(46, 139, 127, .14);
}
.checklist li:last-child { border-bottom: 0; }
.checklist li::before {
  content: "";
  position: absolute; left: .25rem; top: 1.35rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid var(--accent);
}

/* ---------- passos ---------- */

.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  counter-reset: step;
}
.step {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
}
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; margin-bottom: 1rem;
  border-radius: 50%;
  background: var(--accent); color: #fff;
  font-size: .95rem; font-weight: 600;
}
.step p { color: var(--ink-soft); font-size: .97rem; margin: 0; }

.callout {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  background: var(--accent-wash);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 2.6rem);
}
.callout h3 { color: var(--accent-deep); margin-bottom: 1rem; }
.callout ul { margin: 0; padding-left: 1.2rem; color: var(--ink-soft); display: grid; gap: .5rem; }

/* ---------- timeline ---------- */

.timeline { list-style: none; margin: 0 0 2rem; padding: 0 0 0 1.6rem; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding-bottom: 2rem; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: "";
  position: absolute; left: calc(-1.6rem - 6px); top: .45rem;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px var(--bg-alt);
}
.timeline-year { display: block; font-size: .83rem; font-weight: 600; letter-spacing: .08em; color: var(--accent); margin-bottom: .3rem; }
.timeline h3 { margin-bottom: .25rem; }
.timeline p { color: var(--ink-soft); font-size: .96rem; margin: 0; }

/* ---------- details (publicações + faq) ---------- */

details { border-radius: var(--radius-sm); }
summary {
  cursor: pointer;
  list-style: none;
  font-weight: 500;
  color: var(--ink);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "";
  flex: none;
  width: 9px; height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform .2s ease;
}
details[open] > summary::after { transform: rotate(-135deg); }

.pubs { border: 1px solid var(--line); background: var(--white); padding: 1.1rem 1.3rem; }
.pubs ul { margin: 1.1rem 0 .3rem; padding-left: 1.2rem; color: var(--ink-soft); font-size: .95rem; display: grid; gap: .65rem; }

.faq { display: grid; gap: .2rem; }
.faq details { border-bottom: 1px solid var(--line); border-radius: 0; }
.faq summary { padding: 1.3rem 0; font-size: 1.05rem; }
.faq details > div { padding: 0 0 1.4rem; color: var(--ink-soft); max-width: 62ch; }

/* ---------- contato ---------- */

.section-cta {
  background: linear-gradient(150deg, var(--accent-deep), var(--accent-dark));
  color: #fff;
}
.section-cta h2 { color: #fff; }
.section-cta .section-sub { color: rgba(255, 255, 255, .8); }

.contact-card {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 2.5rem);
}
.contact-card dl { margin: 0; display: grid; gap: 1.6rem; }
.contact-card dt {
  font-size: .76rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-wash);
  margin-bottom: .4rem;
}
.contact-card dd { margin: 0; font-size: 1.02rem; color: #fff; }
.contact-card dd a { color: #fff; text-decoration-color: rgba(255,255,255,.5); }
.contact-card dd a:hover { color: var(--accent-wash); }

/* ---------- rodapé ---------- */

.site-footer { background: var(--ink); color: rgba(255, 255, 255, .62); padding-block: clamp(3rem, 6vw, 4.5rem); font-size: .9rem; }
.footer-inner { display: grid; gap: 1.6rem; }
@media (min-width: 860px) {
  .footer-inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); align-items: start; column-gap: 4rem; }
  .footer-legal { grid-column: 1 / -1; }
}
.footer-name { color: #fff; font-weight: 600; font-size: 1rem; margin-bottom: .2rem; }
.footer-crm { margin: 0; }
.footer-disclaimer { line-height: 1.6; margin: 0; }
.footer-legal { margin: 0; padding-top: 1.6rem; border-top: 1px solid rgba(255,255,255,.12); font-size: .84rem; color: rgba(255,255,255,.45); }

/* ---------- botão flutuante ---------- */

.wa-float {
  position: fixed; right: clamp(1rem, 3vw, 1.8rem); bottom: clamp(1rem, 3vw, 1.8rem);
  z-index: 60;
  display: flex; align-items: center; justify-content: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #25d366; color: #fff;
  box-shadow: 0 6px 20px rgba(15, 28, 26, .22);
  transition: transform .2s ease, box-shadow .2s ease;
}
.wa-float:hover { color: #fff; transform: scale(1.06); box-shadow: 0 10px 28px rgba(15, 28, 26, .28); }

/* ---------- âncoras ---------- */
/* Compensa a altura do cabeçalho fixo ao navegar pelo menu */
main section[id] { scroll-margin-top: 96px; }