:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --text: #0f172a;
  --muted: #475569;
  --primary: #634E42;
  --primary-600: #4E3B32;
  --border: rgba(0,0,0,0.08);
  --on-primary: #ffffff;
  --navbar-bg: rgba(255,255,255,0.6);
  --hover-bg: rgba(0,0,0,0.06);
  --primary-15: rgba(99,78,66,0.15);
  --hero-start: #f7f4f2;
  --info-bg: #fcfdff;
  --success-bg: #ecfeff;
  --success-border: #a5f3fc;
  --error-bg: #fff1f2;
  --error-border: #fecdd3;
  --icon-filter-primary: invert(33%) sepia(11%) saturate(734%) hue-rotate(335deg) brightness(93%) contrast(91%);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 50;
  background: transparent;
}
.navbar {
  max-width: 1200px;
  margin: 12px auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: saturate(180%) blur(12px);
  background: var(--navbar-bg);
}
.logo svg { width: 28px; height: 28px; color: var(--primary); }
.nav a { text-decoration: none; padding: 8px 12px; border-radius: 8px; margin-left: 6px; }
.nav a:not(.button) { color: var(--text); }
.nav a:not(.button):hover { background: var(--hover-bg); }
.nav a:not(.button).active { background: var(--primary-15); }
.menu-button { display: none; }
.menu-button svg { width: 20px; height: 20px; }
.menu-button svg { color: var(--primary); }
.button { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; cursor: pointer; }
.button.menu-button { display: none; }
.button-primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.nav .button-primary { color: var(--on-primary); }
.button-primary:hover { background: var(--primary-600); }

.site-main { max-width: 1200px; margin: 0 auto; padding: 24px 20px; }

.section { margin: 32px 0; }
.section h2 { margin: 0 0 12px; font-size: 1.6rem; }
.muted { color: var(--muted); }
.card { border: 1px solid var(--border); border-radius: 12px; padding: 18px; background: var(--bg); }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.span-12 { grid-column: span 12; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(6, 1fr); }
  .span-6 { grid-column: span 6; }
  .span-4 { grid-column: span 6; }
  .span-3 { grid-column: span 6; }
  .menu-button { display: inline-flex; }
  .button.menu-button { display: inline-flex; }
  .navbar { flex-wrap: wrap; gap: 10px; }
  .nav { display: none; width: 100%; }
  .navbar.menu-open .nav { display: grid; grid-template-columns: 1fr; }
  .nav a { margin: 4px 0; display: block; }
}

@media (max-width: 600px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .span-6, .span-4, .span-3 { grid-column: span 2; }
}

.hero {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  background: linear-gradient(180deg, var(--hero-start), var(--bg));
}
.hero h1 { margin: 0 0 8px; font-size: 2rem; }
.hero p { margin: 0 0 16px; color: var(--muted); }

.services-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .services-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .services-list { grid-template-columns: 1fr; } }
.service-card { display: flex; gap: 12px; align-items: flex-start; padding: 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg); }
.service-card svg { width: 28px; height: 28px; color: var(--primary); flex-shrink: 0; }

.posts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .posts-grid { grid-template-columns: 1fr; } }
.post-card { border: 1px solid var(--border); border-radius: 12px; background: var(--bg); padding: 16px; }
.post-card h3 { margin: 0 0 6px; font-size: 1.1rem; }
.post-card .meta { color: var(--muted); font-size: 0.9rem; }

.site-footer { border-top: 1px solid var(--border); margin-top: 24px; background: var(--surface); }
.footer-content { max-width: 1200px; margin: 0 auto; padding: 20px; }
.footer-cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 16px; }
.footer-item { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.footer-item svg { width: 18px; height: 18px; color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding: 10px 20px; text-align: center; color: var(--muted); }
.brand-row { display: inline-flex; align-items: center; gap: 8px; }
.brand-row svg { width: 22px; height: 22px; color: var(--primary); }
.footer-contacts .footer-item span { font-size: 1.2rem; font-weight: 600; }
.site-footer a { color: var(--text); text-decoration: none; }
.site-footer a:visited { color: var(--text); }
.site-footer a:hover { text-decoration: none; }

/* Ícones em imagens SVG externas (tint via filter) */
.service-card img, .svc-card img, .contact-item img, .footer-item img { filter: var(--icon-filter-primary); }

a:not(.button) { color: var(--primary); text-decoration: none; }
a:not(.button):hover { color: var(--primary-600); text-decoration: none; }
a:not(.button):visited { color: var(--primary); text-decoration: none; }
a:not(.button):active { color: var(--primary-600); text-decoration: none; }

@media (max-width: 900px) { .footer-cols { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .footer-cols { grid-template-columns: 1fr; } }

/* Utilitários */
.stack-8 > * + * { margin-top: 8px; }
.stack-12 > * + * { margin-top: 12px; }
.stack-16 > * + * { margin-top: 16px; }
.stack-24 > * + * { margin-top: 24px; }