*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f8f7f4;
  --bg-card: #ffffff;
  --bg-dark: #0f0f0e;
  --text: #0f0f0e;
  --text-muted: #6b6a66;
  --text-light: #9a9994;
  --border: rgba(15,15,14,0.10);
  --border-hover: rgba(15,15,14,0.20);
  --accent: #1a6b4a;
  --accent-light: #e8f5ef;
  --accent-hover: #145a3d;
  --accent-dark: #145a3d;
  --tag-finance: #e8f0fe;
  --tag-finance-text: #1a4fa0;
  --tag-safety: #fce8e6;
  --tag-safety-text: #a0200f;
  --tag-health: #e6f4ea;
  --tag-health-text: #137333;
  --tag-productivity: #fff8e1;
  --tag-productivity-text: #8a6500;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 8px rgba(0,0,0,0.08), 0 12px 32px rgba(0,0,0,0.10);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248,247,244,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-inner.narrow { max-width: 800px; }

.logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text); }

.back-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.back-link:hover { color: var(--text); }
.back-link svg { width: 16px; height: 16px; }

footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-inner.narrow { max-width: 800px; }

.footer-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
}

.footer-logo span { color: var(--accent); }

.footer-copy { font-size: 13px; color: var(--text-light); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.disclaimer-box {
  max-width: 1100px;
  margin: 0 auto 40px;
  padding: 0 24px;
}

.disclaimer-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}

@media (max-width: 600px) {
  .nav-links { display: none; }
}