:root,
html[data-theme="light"] {
  --bg: #f8fafc;
  --primary: #42728a;
  --on-primary: #fff;
  --primary-container: #dae9f1;
  --secondary: #7c5aa6;
  --secondary-container: #e6def2;
  --surface: #eef1f6;
  --surface-glow-hi: rgba(255, 255, 255, 0.28);
  --surface-glow-lo2: rgba(15, 23, 42, 0.018);
  --surface-card: #ffffff;
  --border: #dbe1ea;
  --text: #0f172a;
  --text-secondary: #475569;
  --accent: #c2703d;
  --accent-container: #f6e6d8;
}

html[data-theme="dark"] {
  --bg: #1b1b1e;
  --primary: #87b3c9;
  --on-primary: #0a0e17;
  --primary-container: #334e5b;
  --secondary: #b79bd6;
  --secondary-container: #3a2f4a;
  --surface: #242427;
  --surface-glow-hi: rgba(180, 185, 195, 0.04);
  --surface-glow-lo2: rgba(0, 0, 0, 0.06);
  --surface-card: #2d2d31;
  --border: #46464c;
  --text: #f1f5f9;
  --text-secondary: #a3acbc;
  --accent: #c9b47e;
  --accent-container: #3c3a30;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
}

::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* Header */

.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 56px;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 768px) {
  .site-header {
    padding: 16px 20px;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--primary);
  color: var(--on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}

.brand-name {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.site-header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
}

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

.nav-link--active {
  font-weight: 600;
  color: var(--primary);
}

.nav-pill {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: none;
  padding: 9px 18px;
  border: 1.5px solid var(--primary);
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-pill--filled {
  color: var(--on-primary);
  background: var(--primary);
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  padding: 0;
}

.theme-icon {
  width: 17px;
  height: 17px;
}

html[data-theme="light"] .theme-icon--dark,
html[data-theme="dark"] .theme-icon--light {
  display: none;
}

/* Mobile nav toggle (hamburger) */

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  padding: 0;
  flex-shrink: 0;
}

.nav-toggle-icon {
  width: 19px;
  height: 19px;
}

.nav-toggle-icon--close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon--open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon--close {
  display: block;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 40;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 20px 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav .nav-link,
  .site-nav .nav-link--active {
    width: 100%;
    box-sizing: border-box;
    padding: 12px 6px;
  }

  .site-nav .nav-pill {
    width: 100%;
    box-sizing: border-box;
    text-align: center;
    margin-top: 6px;
  }
}

/* Footer */

.site-footer {
  padding: 36px 56px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  display: flex;
  color: var(--text-secondary);
}

/* Generic buttons/cards used across pages */

.btn-primary {
  cursor: pointer;
  border: none;
  padding: 14px 24px;
  border-radius: 100px;
  background: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  font-size: 14.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: Inter, sans-serif;
}

.btn-outline {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 10px 18px;
  font-size: 13.5px;
  font-weight: 600;
}

.tag {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
}

.tag--primary {
  color: var(--primary);
  background: var(--primary-container);
}

.tag--secondary {
  color: var(--secondary);
  background: var(--secondary-container);
}

.placeholder-page {
  max-width: 1160px;
  margin: 0 auto;
  padding: 96px 56px;
  text-align: center;
}

.placeholder-page h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 12px;
}

.placeholder-page p {
  color: var(--text-secondary);
  font-size: 15px;
}