@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700&family=Poppins:wght@500;600;700&family=Roboto+Slab:wght@600;700&display=swap');

:root {
  --bg: #ECF0F1;
  --surface: #FFFFFF;
  --ink: #0F1418;
  --ink-soft: #1A2027;
  --fg: #34495E;
  --muted: #7F8C8D;
  --border: rgba(189, 195, 199, 0.45);
  --border-strong: rgba(52, 73, 94, 0.18);
  --accent: #27AE60;
  --accent-dk: #1E8449;
  --accent-lt: #2ECC71;
  --accent-soft: color-mix(in oklch, var(--accent) 14%, transparent);
  --fg-soft: color-mix(in oklch, var(--fg) 6%, transparent);
  --font-display: 'Roboto Slab', Georgia, 'Iowan Old Style', serif;
  --font-body: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-ui: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-label: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklch, var(--bg) 86%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.topnav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 18px;
}

.logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
}

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

.nav-links {
  display: flex;
  gap: var(--gap-lg);
  align-items: center;
}

.nav-links a {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.current {
  color: var(--ink);
}

.nav-links .magnet-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 12px;
  color: var(--fg);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-links .magnet-link:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.nav-links .magnet-link .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  transition: transform 0.05s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--accent);
  color: var(--surface);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dk);
  border-color: var(--accent-dk);
}

.nav-links a.btn-primary,
.nav-links a.btn-primary:visited,
.nav-links a.btn-primary:hover,
.nav-links a.btn-primary:focus-visible {
  color: var(--surface);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: transparent;
  padding-inline: 12px;
}

.btn-ghost:hover {
  color: var(--accent-dk);
}

.btn-on-ink {
  background: transparent;
  color: var(--surface);
  border-color: rgba(255,255,255,0.28);
}

.btn-on-ink:hover {
  border-color: var(--surface);
}

.btn-arrow::after {
  content: '→';
  transition: transform 0.15s ease;
  font-family: var(--font-body);
}

.btn-arrow:hover::after {
  transform: translateX(3px);
}

.btn-sm {
  padding: 9px 14px;
  font-size: 13px;
}

@media (max-width: 720px) {
  .nav-links a:not(.btn) {
    display: none;
  }

  .nav-links {
    gap: 0;
  }

  .topnav-inner {
    padding-block: 12px;
  }

  .logo {
    font-size: 17px;
  }

  .nav-links .btn-sm {
    padding: 10px 14px;
    font-size: 13px;
  }
}