/* Dra. Xênia Leite — design tokens (design-dna: rose/gold/warm-white/wood) */
:root {
  --color-primary: #A24E62;
  --color-primary-dark: #7E3B4C;
  --color-on-primary: #FFFFFF;
  --color-accent: #B08D57;
  --color-accent-dark: #8C6F42;
  --color-ink: #2B2320;
  --color-muted: #6B5C58;
  --color-bg: #FFFFFF;
  --color-bg-soft: #FBEEF0;
  --color-bg-warm: #F5EFE9;
  --color-border: #E9D9DB;
  --color-success-bg: #EAF4EC;
  --color-success-text: #205C33;
  --color-error: #B3261E;

  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 8px 24px rgba(43, 35, 32, 0.08);
  --shadow-photo: 0 20px 48px rgba(43, 35, 32, 0.18);

  --duration: 200ms;
  --ease: ease-out;
  --ease-snappy: cubic-bezier(0.2, 0, 0, 1);
  --duration-reveal: 450ms;

  --container-max: 1180px;
}

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

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

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
}

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

h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.2; margin: 0 0 var(--space-2); }
h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); }
h2 { font-size: clamp(1.6rem, 2.4vw + 1rem, 2.4rem); }
h3 { font-size: 1.25rem; margin-bottom: var(--space-1); }
p { margin: 0 0 var(--space-2); color: var(--color-muted); max-width: 65ch; }

a { color: var(--color-primary); }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Scroll reveal — no-op unless JS confirms motion is welcome (see main.js) */
.reveal { opacity: 1; transform: none; }
html.anim-ready .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-reveal) var(--ease-snappy), transform var(--duration-reveal) var(--ease-snappy);
}
html.anim-ready .reveal.is-visible { opacity: 1; transform: translateY(0); }
html.anim-ready .problem-grid .reveal:nth-child(2) { transition-delay: 60ms; }
html.anim-ready .problem-grid .reveal:nth-child(3) { transition-delay: 120ms; }
html.anim-ready .problem-grid .reveal:nth-child(4) { transition-delay: 180ms; }
html.anim-ready .faq-list .reveal:nth-child(2) { transition-delay: 60ms; }
html.anim-ready .faq-list .reveal:nth-child(3) { transition-delay: 120ms; }
html.anim-ready .faq-list .reveal:nth-child(4) { transition-delay: 180ms; }

/* Hero entrance — plays once on load, collapses to a snap under reduced motion */
@keyframes heroIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-text > *, .hero-photo {
  animation: heroIn 550ms var(--ease-snappy) both;
}
.hero-text > *:nth-child(2) { animation-delay: 80ms; }
.hero-text > *:nth-child(3) { animation-delay: 160ms; }
.hero-text > *:nth-child(4) { animation-delay: 240ms; }
.hero-text > *:nth-child(5) { animation-delay: 300ms; }
.hero-photo { animation-delay: 200ms; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-1) var(--space-2);
  z-index: 100;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

.eyebrow {
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--color-accent-dark);
  margin: 0 0 var(--space-1);
}
.eyebrow-light { color: #F3D9C4; }
.eyebrow-center { text-align: center; }
.section-title-center { text-align: center; max-width: 40ch; margin-inline: auto; margin-bottom: var(--space-5); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 48px;
  padding: 0 var(--space-3);
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.97); }

.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-dark); }

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

.btn-ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-ghost:hover { background: var(--color-bg-soft); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-ink);
}
.brand-mark {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
}
.brand-name { font-size: 0.95rem; font-weight: 600; line-height: 1.3; }
.brand-name small { font-weight: 400; color: var(--color-muted); font-size: 0.75rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; background: var(--color-ink); border-radius: 2px; }

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.nav a {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--duration) var(--ease);
}
.nav a:hover { color: var(--color-primary); }
.nav-cta {
  background: var(--color-accent);
  color: #FFFFFF !important;
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.nav-cta:hover { background: var(--color-accent-dark); }

/* Hero */
.hero { padding-block: var(--space-6) var(--space-7); background: linear-gradient(180deg, var(--color-bg-soft), #FFFFFF 70%); }
.hero-inner {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}
.hero-lead { font-size: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-3); }
.hero-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-photo);
  aspect-ratio: 4 / 5;
  background: var(--color-ink);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-note { font-size: 0.85rem; color: var(--color-muted); margin-top: var(--space-2); }

.btn-lg { min-height: 56px; padding: 0 var(--space-4); font-size: 1.1rem; }

/* Problem */
.problem { padding-block: var(--space-7); background: var(--color-bg-warm); }
.problem-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-4);
}
.problem-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-card);
}
.problem-item p { margin: 0; font-weight: 500; color: var(--color-ink); }
.problem-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-primary);
}
.problem-icon svg { width: 22px; height: 22px; }
.problem-note {
  text-align: center;
  max-width: 60ch;
  margin-inline: auto;
  font-weight: 600;
  color: var(--color-ink);
}

/* Product */
.product { padding-block: var(--space-7); }
.product-inner { display: grid; gap: var(--space-5); align-items: center; }
.product-media {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, var(--color-bg-soft), transparent 70%);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.product-media img { width: 100%; max-width: 340px; aspect-ratio: 4 / 5; object-fit: contain; }
.includes-list {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 var(--space-4);
  display: grid;
  gap: var(--space-2);
}
.includes-list li {
  position: relative;
  padding-left: var(--space-4);
  color: var(--color-ink);
}
.includes-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4em;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  border: 2px solid var(--color-primary);
}
.includes-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 0.55em;
  width: 6px;
  height: 10px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
}

/* About */
.about { padding-block: var(--space-7); background: var(--color-bg-warm); }
.about-inner { display: grid; gap: var(--space-5); align-items: center; }
.about-media img { border-radius: var(--radius-md); box-shadow: var(--shadow-card); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.credentials {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}
.credentials li {
  background: #FFFFFF;
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  font-size: 0.9rem;
  color: var(--color-ink);
}
.credentials strong { display: block; color: var(--color-primary); font-family: var(--font-heading); font-size: 1.1rem; }
.social-link {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 2px;
}
.social-link:hover { color: var(--color-primary-dark); }

/* Offer */
.offer {
  padding-block: var(--space-7);
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #FFFFFF;
  text-align: center;
}
.offer-inner { max-width: 640px; margin-inline: auto; }
.offer h2 { color: #FFFFFF; }
.offer p { color: #F3E3E7; margin-inline: auto; }
.offer-note { font-size: 0.85rem; margin-top: var(--space-2); margin-bottom: 0; }

/* FAQ */
.faq { padding-block: var(--space-7); }
.faq-list { max-width: 760px; margin-inline: auto; display: grid; gap: var(--space-2); }
.faq-item {
  background: var(--color-bg-warm);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-heading { margin: 0; }
.faq-question {
  width: 100%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  background: none;
  border: none;
  padding: var(--space-3);
  font-weight: 600;
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  text-align: left;
}
.faq-question::after {
  content: "";
  width: 10px;
  height: 10px;
  min-width: 10px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
  transition: transform var(--duration-reveal) var(--ease-snappy);
}
.faq-question[aria-expanded="true"]::after { transform: rotate(-135deg); }
.faq-question:focus-visible { outline: 3px solid var(--color-accent); outline-offset: -3px; border-radius: 4px; }

/* Accordion — grid-rows trick animates open/close without a fixed height.
   Defaults open (grid-template-rows: 1fr) so content stays reachable if JS
   never runs; html.js is set unconditionally by main.js and is what actually
   collapses it. Reduced motion is handled by the global transition-duration
   override above, no extra gating needed here. */
.faq-answer {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows var(--duration-reveal) var(--ease-snappy);
}
html.js .faq-answer { grid-template-rows: 0fr; }
html.js .faq-answer.is-open { grid-template-rows: 1fr; }
.faq-answer-inner { overflow: hidden; }
.faq-answer-inner p { margin: 0 var(--space-3) var(--space-3); }

/* Footer */
.site-footer { border-top: 1px solid var(--color-border); padding-block: var(--space-3); background: var(--color-bg-warm); }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-1);
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Responsive */
@media (min-width: 768px) {
  .hero-inner { grid-template-columns: 1.1fr 0.9fr; }
  .about-inner { grid-template-columns: 0.9fr 1.1fr; }
  .product-inner { grid-template-columns: 0.9fr 1.1fr; }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .problem-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 767px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-2);
    gap: var(--space-1);
    display: flex;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity var(--duration) var(--ease-snappy), transform var(--duration) var(--ease-snappy);
  }
  .nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav a { padding: var(--space-2); border-radius: var(--radius-sm); }
  .nav a:hover { background: var(--color-bg-soft); }
  .nav-cta { text-align: center; justify-content: center; }
}