/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; }

/* Design tokens */
:root {
  --color-primary: #0E7C7B;
  --color-primary-dark: #0A5F5E;
  --color-primary-light: #E6F4F3;
  --color-ink: #1F2933;
  --color-ink-soft: #52606D;
  --color-bg: #FAFAF9;
  --color-white: #FFFFFF;
  --color-gold: #C9A227;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container-width: 1140px;
  --radius: 8px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
}

body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.55;
  font-size: 16px;
}

h1, h2, h3 { font-weight: 800; line-height: 1.2; color: var(--color-ink); }
h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; margin-bottom: var(--space-3); }
h3 { font-size: 1.25rem; }
p { color: var(--color-ink-soft); }

@media (min-width: 768px) {
  body { font-size: 17px; }
  h1 { font-size: 3rem; }
  h2 { font-size: 2.25rem; }
}

/* Layout utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-8) 0;
}

.section--alt {
  background: var(--color-primary-light);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(31, 41, 51, 0.16);
}
.btn:active { transform: translateY(0); box-shadow: none; }

@media (prefers-reduced-motion: reduce) {
  .btn, .btn:hover, .btn:active { transition: none; transform: none; box-shadow: none; }
}

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

.btn--outline {
  background: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}
.btn--outline:hover { background: rgba(255,255,255,0.12); }

.btn--whatsapp {
  background: var(--color-white);
  color: var(--color-primary-dark);
}
.btn--whatsapp:hover { background: var(--color-primary-light); }

/* Stat tile */
.stat-tile { text-align: center; }
.stat-tile__number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}
.stat-tile__label {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

/* Card */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: 0 1px 3px rgba(31, 41, 51, 0.08);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.normas .card:hover,
.diferenciais .card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(31, 41, 51, 0.12);
}

@media (prefers-reduced-motion: reduce) {
  .card, .card:hover { transition: none; transform: none; }
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-white);
  box-shadow: 0 1px 3px rgba(31, 41, 51, 0.08);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}
.site-header__logo { height: 90px; }

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.lang-switch {
  display: flex;
  gap: 2px;
  border: 1px solid var(--color-primary-light);
  border-radius: 100px;
  padding: 3px;
}
.lang-switch__btn {
  border: none;
  background: transparent;
  color: var(--color-ink-soft);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.3rem 0.55rem;
  border-radius: 100px;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.lang-switch__btn:hover { color: var(--color-primary-dark); }
.lang-switch__btn.is-active {
  background: var(--color-primary);
  color: var(--color-white);
}

@media (prefers-reduced-motion: reduce) {
  .lang-switch__btn { transition: none; }
}

section[id] { scroll-margin-top: 144px; }

.nav__toggle {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 0.5rem;
}
.nav__toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--color-ink);
}

.nav {
  position: fixed;
  inset: 0 0 0 30%;
  background: var(--color-white);
  padding: var(--space-6) var(--space-3);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.2s ease, visibility 0.2s ease;
}
.nav.is-open { transform: translateX(0); visibility: visible; }
.nav__list { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-4); }
.nav__link {
  font-weight: 600;
  display: inline-block;
  position: relative;
  color: var(--color-ink);
  transition: color 0.15s ease;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.2s ease;
}
.nav__link:hover { color: var(--color-primary-dark); }
.nav__link:hover::after { width: 100%; }

@media (prefers-reduced-motion: reduce) {
  .nav__link, .nav__link::after { transition: none; }
}
.nav__cta { width: 100%; }

@media (min-width: 900px) {
  .nav__toggle { display: none; }
  .nav {
    position: static;
    inset: auto;
    transform: none;
    visibility: visible;
    padding: 0;
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }
  .nav__list { flex-direction: row; margin-bottom: 0; }
  .nav__cta { width: auto; }
}

/* Hero */
.hero {
  position: relative;
  color: var(--color-white);
  min-height: 80vh;
  display: flex;
  align-items: center;
}
.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,31,31,0.55) 0%, rgba(15,31,31,0.75) 100%);
}
.hero__content { position: relative; padding-top: var(--space-8); padding-bottom: var(--space-8); }
.hero__eyebrow {
  color: var(--color-white);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: var(--space-2);
}
.hero h1 { color: var(--color-white); margin-bottom: var(--space-3); }
.hero__subtitle { color: rgba(255,255,255,0.9); max-width: 640px; margin-bottom: var(--space-4); font-size: 1.05rem; }
.hero__actions { display: flex; flex-direction: column; gap: var(--space-2); }

@media (min-width: 768px) {
  .hero__actions { flex-direction: row; }
}

/* Hero entrance (on-load, not scroll-triggered) */
@keyframes hero-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero__eyebrow, .hero h1, .hero__subtitle, .hero__actions {
  animation: hero-rise 0.6s ease both;
}
.hero__eyebrow { animation-delay: 0s; }
.hero h1 { animation-delay: 0.08s; }
.hero__subtitle { animation-delay: 0.16s; }
.hero__actions { animation-delay: 0.24s; }

/* Scroll reveal (3 usos: prova social, diferenciais, depoimento, 1 por secao) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .hero__eyebrow, .hero h1, .hero__subtitle, .hero__actions {
    animation: none;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.social-proof { padding-top: var(--space-6); padding-bottom: var(--space-6); }

.sobre__grid p { font-size: 1rem; }
.sobre__grid p + p { margin-top: 0; }

.produto__intro { max-width: 720px; margin-bottom: var(--space-4); font-size: 1.05rem; }

.produto__photo {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
  border-radius: calc(var(--radius) * 2);
  padding: var(--space-6) var(--space-4);
  box-shadow: 0 1px 3px rgba(31, 41, 51, 0.08);
}
.produto__image {
  width: 100%;
  max-width: 230px;
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(14, 124, 123, 0.22);
}

@media (min-width: 768px) {
  .produto__grid { grid-template-columns: minmax(240px, 320px) 1fr; align-items: stretch; }
  .produto__photo { padding: var(--space-8) var(--space-4); }
}

.produto__table { width: 100%; border-collapse: collapse; }
.produto__table th, .produto__table td {
  text-align: left;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-primary-light);
  font-size: 0.95rem;
}
.produto__table th { color: var(--color-ink-soft); font-weight: 600; width: 40%; }
.produto__table td { color: var(--color-ink); font-weight: 500; }
.produto__table tr:last-child th, .produto__table tr:last-child td { border-bottom: none; }

.normas .card h3 { color: var(--color-primary-dark); margin-bottom: var(--space-1); }
.normas .card p { font-size: 0.95rem; }

.casos__quote {
  border-left: 4px solid var(--color-primary);
  margin-bottom: var(--space-3);
}
.casos__quote p {
  font-size: 1.15rem;
  color: var(--color-ink);
  font-style: italic;
  margin-bottom: var(--space-2);
}
.casos__quote footer {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.casos__note { max-width: 720px; }

.diferenciais .card h3 { margin-bottom: var(--space-1); font-size: 1.1rem; }
.diferenciais .card p { font-size: 0.95rem; }

.contato__quick-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-3) 0; }
.btn--outline-ink {
  background: transparent;
  border: 2px solid var(--color-ink);
  color: var(--color-ink);
}
.btn--outline-ink:hover { background: var(--color-ink); color: var(--color-white); }

.contato__details { margin-top: var(--space-3); }
.contato__details li { margin-bottom: var(--space-1); font-size: 0.95rem; }

.contato__form { display: flex; flex-direction: column; gap: var(--space-1); }
.contato__form h3 { margin-bottom: var(--space-2); }
.contato__form label { font-weight: 600; font-size: 0.9rem; margin-top: var(--space-1); }
.contato__form input, .contato__form textarea {
  border: 1px solid #7C8A97;
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 1rem;
}
.contato__form input:focus, .contato__form textarea:focus {
  border-color: var(--color-primary);
}
.contato__form button { margin-top: var(--space-2); }
.contato__privacy-note { font-size: 0.82rem; color: var(--color-ink-soft); margin-top: var(--space-1); }
.contato__privacy-note a { color: var(--color-primary-dark); text-decoration: underline; }
.contato__whatsapp-number { font-size: 0.95rem; margin-bottom: var(--space-2); }

.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.8);
  padding: var(--space-6) 0;
}
.site-footer__inner { text-align: center; }
.site-footer__logo { height: 40px; margin: 0 auto var(--space-2); }
.site-footer p { color: rgba(255,255,255,0.75); font-size: 0.85rem; margin-bottom: 2px; }
.site-footer__nav { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-3); }
.site-footer__nav a {
  color: var(--color-white);
  font-size: 0.9rem;
  position: relative;
  transition: color 0.15s ease;
}
.site-footer__nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background: var(--color-white);
  transition: width 0.2s ease;
}
.site-footer__nav a:hover { color: var(--color-primary-light); }
.site-footer__nav a:hover::after { width: 100%; }

@media (prefers-reduced-motion: reduce) {
  .site-footer__nav a, .site-footer__nav a::after { transition: none; }
}