:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f2f2f2;
  --gray-300: #d9d9d9;
  --gray-500: #737373;
  --radius: 14px;
  --max-width: 1120px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; margin: 0; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--gray-100);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo span { font-weight: 400; color: var(--gray-500); }

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--black);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: opacity 0.15s ease;
}

.nav a:hover { opacity: 0.6; }

.nav-ig { display: flex; align-items: center; }

.menu-toggle {
  display: none;
  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;
  width: 22px;
  height: 2px;
  background: var(--black);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero */
.hero {
  padding: 120px 0 96px;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-title-link {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.hero-title-link:hover { opacity: 0.7; }

.hero-sub {
  font-size: 1.15rem;
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 0 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
  border: 1px solid transparent;
}

.btn:hover { transform: translateY(-1px); }

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

.btn-primary:hover { opacity: 0.85; }

/* Pillars */
.pillars {
  padding: 56px 0;
  border-top: 1px solid var(--gray-100);
  text-align: center;
}

.pillars-row {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--black);
  margin: 0;
}

.pillars-dot {
  color: var(--gray-300);
  margin: 0 4px;
}

/* CTA */
.cta {
  padding: 110px 0;
  text-align: center;
  border-top: 1px solid var(--gray-100);
}

.cta h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
}

.cta-inner { max-width: 640px; margin: 0 auto; }

.cta p {
  color: var(--gray-500);
  font-size: 1.05rem;
  margin: 16px 0 40px;
}

.cta-contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--black);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.98rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.cta-link:hover { border-color: var(--black); }

/* Info hub */
.info-hero {
  padding: 56px 0 48px;
}

.info-hero p {
  color: var(--gray-500);
  font-size: 1.1rem;
  max-width: 620px;
  margin: 0;
}

.info-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 0 40px;
}

.filter-btn {
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--gray-300);
  background: transparent;
  color: var(--black);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.filter-btn:hover { border-color: var(--black); }

.filter-btn.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 0 0 96px;
}

.info-card.is-hidden { display: none; }

.info-card {
  display: block;
  padding: 28px 24px;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--black);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.info-card:hover {
  border-color: var(--gray-300);
  transform: translateY(-2px);
}

.info-card h2 {
  font-size: 1.05rem;
  line-height: 1.35;
  margin-bottom: 10px;
}

.info-card span {
  color: var(--gray-500);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Article */
.breadcrumb {
  padding: 32px 0 0;
  font-size: 0.9rem;
  color: var(--gray-500);
}

.breadcrumb a { color: var(--gray-500); text-decoration: none; }
.breadcrumb a:hover { color: var(--black); }

.article {
  padding-top: 24px;
  padding-bottom: 80px;
  max-width: 720px;
}

.article-standalone { padding-top: 64px; }

.article h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 20px 0 16px;
}

.article .lead {
  font-size: 1.15rem;
  color: var(--gray-500);
  margin: 0 0 40px;
}

.article h2 {
  font-size: 1.3rem;
  margin: 40px 0 12px;
}

.article p {
  font-size: 1.02rem;
  color: #333333;
  margin: 0 0 16px;
}

.article ul {
  margin: 0 0 16px;
  padding-left: 20px;
  color: #333333;
}

.article li { margin-bottom: 8px; }

.article-cta {
  margin-top: 48px;
  padding: 32px;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  background: var(--gray-50);
}

.article-cta p {
  margin: 0 0 16px;
  color: var(--black);
  font-weight: 500;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--gray-100);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--gray-500);
  font-size: 0.9rem;
}

.footer-inner a {
  color: var(--gray-500);
  text-decoration: none;
}

.footer-inner a:hover { color: var(--black); }

/* Responsive */
@media (max-width: 860px) {
  .info-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .info-grid { grid-template-columns: 1fr; }
  .menu-toggle { display: flex; }

  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a { padding: 12px 0; width: 100%; }

  .hero { padding: 88px 0 64px; }
  .article-standalone { padding-top: 32px; }
  .cta { padding: 80px 0; }
  .cta-contact { flex-direction: column; align-items: center; gap: 18px; }
}

@media (max-width: 380px) {
  .container { padding: 0 16px; }
}