/* ============================================================
   shared.css — SaúdeMundo · Layout base compartilhado
   Inclua em TODAS as páginas, antes do CSS específico da página
   ============================================================ */

/* --- Variáveis de cor (tema claro default) --- */
:root {
  --green: #00A651;
  --green-light: #4CD98A;
  --green-dark: #007A3D;
  --dark: #FFFFFF;
  --dark2: #F8FAF8;
  --dark3: #F0F4F0;
  --dark4: #E0E7E0;
  --text: #111827;
  --text-muted: #4B5563;
  --red: #E74C3C;
  --radius: 16px;
  --border: #E0E0E0;

  /* Aliases — usados nas páginas filhas que usavam --accent */
  --accent: var(--green);
  --accent-dark: var(--green-dark);
  --accent-light: var(--green-light);
}

/* --- Tema escuro --- */
body.dark {
  --dark: #050A05;
  --dark2: #0D150D;
  --dark3: #142014;
  --dark4: #1C2E1C;
  --text: #F0FFF4;
  --text-muted: #6EE7A0;
  --border: #1C2E1C;
}

/* --- Reset --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--dark);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

/* --- Fundo grid decorativo --- */
.bg-grid {
  position: fixed; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(46,204,113,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,204,113,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* --- Nav --- */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,249,247,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--dark4);
  padding: 0 20px;
  transition: background 0.3s;
}
body.dark nav { background: rgba(7,13,10,0.96); }

.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center;
  justify-content: space-between; height: 54px;
}
.nav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem; color: var(--green-dark);
  text-decoration: none; font-weight: 700;
  letter-spacing: -0.5px; flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 6px;
}
body.dark .nav-logo { color: var(--green); }
.nav-logo-leaf { width: 16px; height: 16px; flex-shrink: 0; display: inline-flex; }
.nav-logo-leaf svg { width: 100%; height: 100%; display: block; }

.nav-links { display: flex; gap: 3px; flex-wrap: wrap; }
.nav-links a {
  color: var(--text-muted); text-decoration: none;
  font-size: 11px; padding: 5px 8px;
  border-radius: 8px; transition: all 0.2s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active { color: var(--green-dark); background: rgba(46,204,113,0.12); }
body.dark .nav-links a:hover,
body.dark .nav-links a.active { color: var(--green); }

.theme-btn {
  background: var(--dark3); border: 1px solid var(--dark4);
  border-radius: 50%; width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 16px; flex-shrink: 0;
  transition: background 0.3s;
}

/* --- Header --- */
header {
  position: relative; z-index: 10;
  text-align: center; padding: 50px 20px 36px;
  animation: fadeDown 0.8s ease;
}
.badge {
  display: inline-block;
  background: rgba(46,204,113,0.15);
  border: 1px solid rgba(46,204,113,0.35);
  color: var(--green-dark); font-size: 11px;
  letter-spacing: 3px; text-transform: uppercase;
  padding: 6px 16px; border-radius: 100px; margin-bottom: 20px;
}
body.dark .badge { color: var(--green); }

h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 900; line-height: 1.1;
  background: linear-gradient(135deg, #005C2E, var(--green-dark), var(--green));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 16px;
}
.subtitle {
  color: var(--text-muted); font-size: 1.05rem;
  max-width: 500px; margin: 0 auto; line-height: 1.6;
}

/* --- Container --- */
/* Padrão largo (index). Páginas filhas podem sobrescrever com max-width menor */
.container {
  position: relative; z-index: 10;
  max-width: 1100px; margin: 0 auto;
  padding: 0 20px 80px;
}

/* --- Cards --- */
.card {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: border-color 0.3s, box-shadow 0.3s;
  margin-bottom: 20px;
}
.card:hover {
  border-color: rgba(46,204,113,0.4);
  box-shadow: 0 4px 20px rgba(46,204,113,0.08);
}
.card-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem; color: var(--green-dark);
  margin-bottom: 20px; display: flex; align-items: center; gap: 8px;
}
body.dark .card-title { color: var(--green); }

/* --- Seção title com linha --- */
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem; color: var(--text);
  margin-bottom: 16px; display: flex; align-items: center; gap: 10px;
}
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* --- Formulário --- */
.field { margin-bottom: 18px; }
label {
  display: block; font-size: 12px;
  letter-spacing: 1px; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 8px;
}
.input-row {
  display: flex; align-items: center; gap: 8px;
  background: var(--dark3); border: 1px solid var(--border);
  border-radius: 10px; padding: 0 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-row:focus-within {
  border-color: var(--green-dark);
  box-shadow: 0 0 0 3px rgba(46,204,113,0.15);
}
.input-prefix {
  color: var(--green-dark); font-weight: 600;
  font-size: 14px; flex-shrink: 0;
}
body.dark .input-prefix { color: var(--green); }

.input-row input,
.input-row select {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: 'DM Sans', sans-serif;
  font-size: 1rem; padding: 14px 0;
  -moz-appearance: textfield;
}
.input-row input::-webkit-outer-spin-button,
.input-row input::-webkit-inner-spin-button { -webkit-appearance: none; }
.input-row select option { background: var(--dark2); color: var(--text); }

.toggle-group {
  display: flex; background: var(--dark3);
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.toggle-group button {
  flex: 1; padding: 12px; border: none; background: transparent;
  color: var(--text-muted); cursor: pointer;
  font-family: 'DM Sans', sans-serif; font-size: 0.85rem; transition: all 0.2s;
}
.toggle-group button.active { background: var(--green-dark); color: #fff; font-weight: 600; }
body.dark .toggle-group button.active { background: var(--green); }

.btn-calc {
  width: 100%;
  background: linear-gradient(135deg, #005C2E, var(--green-dark));
  border: none; border-radius: 12px; color: white; cursor: pointer;
  font-family: 'Playfair Display', serif; font-size: 1.1rem;
  font-weight: 700; padding: 18px; margin-top: 8px; transition: all 0.3s;
}
.btn-calc:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(26,158,82,0.4); }

/* --- Tools grid (calculadoras relacionadas) --- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px; margin-bottom: 24px;
}
.tool-card {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  text-decoration: none; display: block; transition: all 0.3s;
}
.tool-card:hover {
  border-color: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(46,204,113,0.1);
}
.tool-icon { font-size: 24px; margin-bottom: 8px; }
.tool-name {
  font-family: 'Playfair Display', serif;
  font-size: 0.9rem; color: var(--green-dark); margin-bottom: 4px;
}
body.dark .tool-name { color: var(--green); }
.tool-desc { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

/* --- FAQ --- */
.faq-section {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; margin-bottom: 24px;
}
.faq-item { border-bottom: 1px solid var(--border); padding: 16px 0; }
.faq-item:last-child { border-bottom: none; padding-bottom: 0; }
.faq-q { font-weight: 600; color: var(--text); font-size: 0.95rem; margin-bottom: 8px; }
.faq-a { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.faq-a a { color: var(--green-dark); text-decoration: none; font-weight: 500; }
body.dark .faq-a a { color: var(--green); }

/* --- Meta grid (resultado) --- */
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.meta-item {
  background: var(--dark3); border-radius: 10px;
  padding: 14px; text-align: center; border: 1px solid var(--border);
}
.meta-item-label { font-size: 11px; color: var(--text-muted); margin-bottom: 6px; }
.meta-item-value { font-size: 1rem; font-weight: 600; color: var(--green-dark); }
body.dark .meta-item-value { color: var(--green-light); }

/* --- Toast --- */
.toast {
  position: fixed; bottom: 80px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--dark2); border: 1px solid var(--green-dark);
  color: var(--text); padding: 12px 24px; border-radius: 100px;
  font-size: 14px; opacity: 0; transition: all 0.3s;
  z-index: 9999; pointer-events: none;
  white-space: nowrap; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* --- Footer --- */
footer {
  text-align: center; padding: 40px 20px;
  color: var(--text-muted); font-size: 13px;
  border-top: 1px solid var(--border);
  background: var(--dark2);
  position: relative; z-index: 10;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; flex-direction: column;
  gap: 15px; align-items: center;
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; margin-bottom: 6px; }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--green); }

/* --- Animações --- */
@keyframes fadeDown { from { opacity:0; transform:translateY(-20px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn   { from { opacity:0; transform:translateY(10px);  } to { opacity:1; transform:translateY(0); } }
/* --- Nav scroll horizontal no mobile --- */
@media (max-width: 768px) {
  nav {
    padding: 0 12px;
  }

  .nav-inner {
    height: auto;
    flex-wrap: wrap;
    padding: 10px 0;
    gap: 6px;
  }

  .nav-logo {
    flex-shrink: 0;
  }

  .nav-links {
    order: 3;
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    flex-shrink: 0;
  }

  .theme-btn {
    order: 2;
    margin-left: auto;
  }
}

.author-box {
  display: flex; flex-wrap: wrap; gap: 16px;
  font-size: 12px; color: var(--text-muted);
  padding: 0 0 20px; margin-bottom: 4px;
}
.author-box a { color: var(--green-dark); text-decoration: none; font-weight: 500; }
body.dark .author-box a { color: var(--green); }

/* ============================================================
   BLOG — Seção "Artigos do Blog" (adicionar ao final do shared.css)
   ============================================================ */
.blog-section {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; margin-bottom: 24px;
}
.blog-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem; color: var(--green-dark); margin-bottom: 4px;
}
body.dark .blog-title { color: var(--green); }
.blog-sub {
  font-size: 13px; color: var(--text-muted); margin-bottom: 18px;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.blog-card {
  background: var(--dark3); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px;
  text-decoration: none; display: block; transition: all 0.25s;
}
.blog-card:hover {
  border-color: var(--green-dark);
  box-shadow: 0 6px 18px rgba(46,204,113,0.12);
  transform: translateY(-2px);
}
.blog-card-cat {
  font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--green-dark); font-weight: 600; margin-bottom: 8px;
}
body.dark .blog-card-cat { color: var(--green); }
.blog-card-name {
  font-family: 'Playfair Display', serif;
  font-size: 0.95rem; color: var(--text); margin-bottom: 6px; line-height: 1.3;
}
.blog-card-desc {
  font-size: 12px; color: var(--text-muted); line-height: 1.5; margin-bottom: 10px;
}
.blog-card-cta {
  font-size: 12px; color: var(--green-dark); font-weight: 600;
}
body.dark .blog-card-cta { color: var(--green); }
/* ============================================================
   ARTIGOS — Caixa "Fontes e Referências" (dark-mode safe)
   ============================================================ */
.fontes-box { background: var(--dark3); border: 1px solid var(--border); border-radius: 12px; padding: 20px 24px; margin-top: 28px; }
.fontes-label { font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--green-dark); opacity: 0.8; margin-bottom: 14px; }
body.dark .fontes-label { color: var(--green); }
.fontes-list { color: var(--text-muted); font-size: 0.82rem; line-height: 1.8; padding-left: 18px; margin: 0; }
.fontes-list li { margin-bottom: 6px; }
.fontes-link { color: var(--green-dark); text-decoration: none; }
body.dark .fontes-link { color: var(--green); }