/* ============================================
   Instituto de Saúde DM — estilos
   ============================================ */

:root {
  --color-primary: #9b1c3b;
  --color-primary-dark: #6e1329;
  --color-primary-light: #f7e8eb;
  --color-accent: #e0913f;
  --color-accent-dark: #c7752a;
  --color-kids: #4f9bc9;
  --color-kids-light: #eaf5fb;
  --color-whatsapp: #25d366;
  --color-whatsapp-dark: #1ea952;

  --color-text: #241a1d;
  --color-text-light: #6b5c5f;
  --color-bg: #ffffff;
  --color-bg-alt: #faf6f7;
  --color-border: #ece1e3;

  --font-heading: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(155, 28, 59, 0.08);
  --shadow-md: 0 10px 30px rgba(155, 28, 59, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.6em;
  color: var(--color-primary-dark);
}

p { margin: 0 0 1em; }

a { color: inherit; text-decoration: none; }

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow { max-width: 760px; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: normal;
  text-align: center;
}

.btn:hover { transform: translateY(-2px); }

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

.btn-outline {
  background: transparent;
  color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}
.btn-outline:hover { background: var(--color-primary-light); }

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-whatsapp:hover { background: var(--color-whatsapp-dark); }
.btn-whatsapp svg { width: 24px; height: 24px; flex-shrink: 0; }

.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-xl { padding: 20px 40px; font-size: 1.1rem; }

.btn-header {
  display: none;
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  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;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
}
.logo-img {
  height: 34px;
  width: auto;
  display: block;
}

.nav-desktop { display: none; }
.nav-desktop a {
  margin: 0 16px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-light);
  transition: color 0.15s ease;
}
.nav-desktop a:hover { color: var(--color-primary); }

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 24px;
  background: var(--color-primary-dark);
  margin: 0 auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: flex;
  flex-direction: column;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}
.nav-mobile.open { max-height: 400px; }
.nav-mobile a {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 500;
  color: var(--color-text);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background: linear-gradient(160deg, var(--color-primary-light) 0%, #ffffff 65%);
  padding: 64px 0 72px;
  overflow: hidden;
}

.hero-inner { position: relative; z-index: 1; max-width: 720px; }

.eyebrow {
  display: inline-block;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 14px;
}
.eyebrow-center { display: block; text-align: center; }

.hero h1 {
  font-size: 2rem;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-decor {
  position: absolute;
  right: -120px;
  top: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(155, 28, 59, 0.14) 0%, rgba(155, 28, 59, 0) 70%);
}

/* ---------- Sections ---------- */

.section {
  padding: 64px 0;
}

.section-highlight { background: var(--color-bg-alt); }
.section-kids { background: var(--color-kids-light); }

.section-title {
  font-size: 1.6rem;
  max-width: 640px;
}
.section-title-center { margin-left: auto; margin-right: auto; text-align: center; }

.section-lead {
  font-size: 1.02rem;
  color: var(--color-text-light);
  max-width: 640px;
  margin-bottom: 36px;
}
.section-lead-center { margin-left: auto; margin-right: auto; text-align: center; }

.section-center { text-align: center; }
.section-center .section-title,
.section-center .section-lead { margin-left: auto; margin-right: auto; }

.section-note {
  max-width: 700px;
  color: var(--color-text-light);
  font-size: 0.95rem;
  font-style: italic;
  border-left: 3px solid var(--color-accent);
  padding-left: 16px;
  margin-top: 8px;
}

.badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.badge-kids { background: var(--color-kids); }

.method-header { max-width: 700px; margin-bottom: 20px; }
.method-cta { margin-top: 40px; }

/* ---------- Grids & Cards ---------- */

.grid {
  display: grid;
  gap: 20px;
  margin-bottom: 32px;
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); }

.card h3 {
  font-size: 0.98rem;
  margin: 0;
  color: var(--color-text);
  font-weight: 600;
}

.card-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-icon svg { width: 24px; height: 24px; }

.feature {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--color-border);
}
.feature h3 {
  font-size: 1.02rem;
  margin-bottom: 8px;
  color: var(--color-primary-dark);
}
.feature p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  margin: 0;
}

.grid-checklist { margin-top: 24px; }
.checklist-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-weight: 500;
  position: relative;
  padding-left: 44px;
}
.checklist-item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-kids);
}

/* ---------- CTA final ---------- */

.section-cta {
  background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}
.section-title-invert { color: #fff; }
.section-lead-invert { color: rgba(255, 255, 255, 0.82); }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  text-align: center;
}
.footer-inner { max-width: 520px; margin: 0 auto; }
.logo-footer-img {
  height: 40px;
  width: auto;
  margin: 0 auto 14px;
}
.footer-note {
  color: var(--color-text-light);
  font-size: 0.92rem;
}
.footer-copy {
  color: var(--color-text-light);
  font-size: 0.82rem;
  margin: 0;
}

/* ---------- Floating WhatsApp button ---------- */

.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 58px;
  height: 58px;
  background: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  z-index: 200;
  transition: transform 0.2s ease, background 0.2s ease;
}
.whatsapp-float:hover { transform: scale(1.08); background: var(--color-whatsapp-dark); }
.whatsapp-float svg { width: 30px; height: 30px; color: #fff; }

/* ============================================
   Responsividade
   ============================================ */

@media (min-width: 560px) {
  .hero-actions { flex-direction: row; flex-wrap: wrap; }
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 720px) {
  .hero h1 { font-size: 2.6rem; }
  .section-title { font-size: 2rem; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .nav-desktop { display: flex; align-items: center; }
  .menu-toggle { display: none; }
  .nav-mobile { display: none; }
  .btn-header { display: inline-flex; }
  .logo-img { height: 42px; }

  .hero { padding: 96px 0 110px; }
  .hero h1 { font-size: 3.1rem; }
  .section { padding: 88px 0; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1100px) {
  .hero h1 { font-size: 3.4rem; }
}