:root {
  color-scheme: dark;
  --canvas: #080b12;
  --surface: #111827;
  --surface-raised: #182235;
  --line: #2b3a53;
  --text: #f7f9fd;
  --muted: #aab6ca;
  --accent: #67d9ff;
  --accent-strong: #9a7cff;
  --success: #66e3b4;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 80% -10%, #1b2450 0, transparent 34rem), var(--canvas); color: var(--text); }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -4rem; z-index: 20; padding: .7rem 1rem; background: var(--text); color: var(--canvas); border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.site-header { height: 4.25rem; display: flex; align-items: center; gap: 1.25rem; padding: 0 clamp(1rem, 4vw, 4rem); border-bottom: 1px solid rgba(170,182,202,.18); background: rgba(8,11,18,.82); backdrop-filter: blur(18px); position: sticky; top: 0; z-index: 10; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 850; letter-spacing: .1em; text-decoration: none; }
.brand-mark { width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: .55rem; color: #071019; background: linear-gradient(135deg, var(--accent), var(--accent-strong)); }
.desktop-nav { display: flex; gap: .35rem; margin-left: auto; }
.desktop-nav a, .account-link { text-decoration: none; padding: .55rem .8rem; border-radius: .6rem; color: var(--muted); }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--text); background: rgba(255,255,255,.07); }
.account-link { color: var(--text); border: 1px solid var(--line); }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { list-style: none; width: 2.5rem; height: 2.5rem; display: grid; align-content: center; gap: .25rem; padding: .6rem; border: 1px solid var(--line); border-radius: .65rem; cursor: pointer; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary span { height: 2px; background: var(--text); border-radius: 2px; }
.mobile-menu nav { position: absolute; right: 0; top: 3rem; min-width: 12rem; display: grid; padding: .5rem; background: var(--surface-raised); border: 1px solid var(--line); border-radius: .75rem; box-shadow: 0 1rem 3rem #0009; }
.mobile-menu nav a { padding: .8rem; text-decoration: none; border-radius: .5rem; }
.hero { min-height: calc(100vh - 4.25rem); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(20rem, .95fr); align-items: center; gap: clamp(2rem, 6vw, 7rem); padding: clamp(4rem, 9vw, 8rem) clamp(1rem, 7vw, 8rem); }
.hero-copy-only { grid-template-columns: minmax(0, 56rem); justify-content: center; text-align: center; }
.hero-copy-only .hero-copy > p { margin-inline: auto; }
.hero-copy-only .actions { justify-content: center; }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; color: var(--accent); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 800; }
.eyebrow::before { content: ""; width: 1.6rem; height: 2px; background: currentColor; }
h1 { max-width: 12ch; margin: 1rem 0 1.25rem; font-size: clamp(3rem, 7vw, 6.8rem); line-height: .94; letter-spacing: -.065em; }
.hero-copy > p { max-width: 43rem; font-size: clamp(1.05rem, 1.8vw, 1.35rem); line-height: 1.65; color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { min-height: 2.8rem; display: inline-flex; align-items: center; justify-content: center; padding: .72rem 1.05rem; border-radius: .7rem; text-decoration: none; font-weight: 750; border: 1px solid var(--line); background: var(--surface-raised); }
.button-primary { color: #071019; border-color: transparent; background: linear-gradient(135deg, var(--accent), #8be5c0); }
.section { padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 7vw, 8rem); }
.section-heading { max-width: 52rem; margin-bottom: 2rem; }
.section h2 { margin: .65rem 0; font-size: clamp(2rem, 4vw, 3.7rem); letter-spacing: -.045em; }
.section-heading p, .prose p { color: var(--muted); line-height: 1.7; }
.feature-grid, .pricing-grid, .download-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.pricing-grid { grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.feature-card, .price-card, .download-card, .portal-card { padding: 1.4rem; border: 1px solid var(--line); border-radius: 1rem; background: rgba(17,24,39,.86); }
.feature-card span { color: var(--accent); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.feature-card h3, .price-card h3 { margin: .65rem 0; font-size: 1.25rem; }
.feature-card p, .price-card p, .download-card p { color: var(--muted); line-height: 1.6; }
.price { margin: 1rem 0; font-size: 2.1rem; font-weight: 850; letter-spacing: -.04em; }
.price small { font-size: .8rem; color: var(--muted); font-weight: 600; }
.price-card ul { padding: 0; list-style: none; color: var(--muted); }
.price-card li { padding: .45rem 0; border-top: 1px solid rgba(170,182,202,.14); }
.price-card.featured { border-color: #678dd1; box-shadow: inset 0 3px var(--accent); }
.prose { max-width: 52rem; margin: 0 auto; }
.portal-shell { min-height: calc(100vh - 8.5rem); display: grid; place-items: center; padding: 2rem 1rem; }
.portal-card { width: min(100%, 34rem); }
.portal-card h1 { max-width: none; font-size: clamp(2rem, 7vw, 3.5rem); }
.auth-card { width: min(100%, 42rem); }
.auth-form { display: grid; gap: .75rem; margin-top: 1.4rem; }
.auth-form label { font-weight: 700; }
.auth-form input { width: 100%; min-height: 3rem; padding: .7rem .85rem; border: 1px solid var(--line); border-radius: .65rem; background: #0d1421; color: var(--text); font: inherit; }
.auth-form input:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.account-management { display: grid; gap: 1.25rem; }
.account-detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.account-detail-card { width: 100%; }
.account-card-heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.account-card-heading h2 { margin: .2rem 0 0; }
.account-summary { display: grid; gap: 0; margin: 1rem 0 0; }
.account-summary div { display: grid; grid-template-columns: minmax(7rem, .45fr) 1fr; gap: 1rem; padding: .75rem 0; border-top: 1px solid var(--line); }
.account-summary dt { color: var(--muted); }
.account-summary dd { margin: 0; overflow-wrap: anywhere; }
.compact-actions { margin-top: .5rem; }
.account-address-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.account-address-row label { display: grid; gap: .75rem; }
.form-status { min-height: 1.5rem; margin: 0; color: var(--muted); }
.recovery-codes { margin-top: 1.5rem; }
.recovery-codes pre { padding: 1rem; border: 1px solid var(--line); border-radius: .75rem; background: #0d1421; color: var(--text); columns: 2; line-height: 1.8; white-space: pre-wrap; }
.enrollment-card { width: min(100%, 46rem); margin-top: 1.5rem; }
.enrollment-code { min-height: 3.2rem; display: grid; place-items: center; border: 1px dashed var(--accent); border-radius: .75rem; color: var(--text); font-size: clamp(1.5rem, 6vw, 2.2rem); font-weight: 800; letter-spacing: .12em; }
.auth-options { display: grid; gap: .7rem; margin: 1.5rem 0; }
.auth-options .button { width: 100%; }
.notice { padding: .8rem 1rem; border-left: 3px solid var(--accent); background: rgba(103,217,255,.08); color: var(--muted); line-height: 1.5; }
.site-footer { min-height: 4.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem clamp(1rem, 4vw, 4rem); border-top: 1px solid rgba(170,182,202,.18); color: var(--muted); font-size: .82rem; }
.site-footer nav { display: flex; gap: 1rem; }
@media (max-width: 850px) {
  .desktop-nav, .account-link { display: none; }
  .mobile-menu { display: block; margin-left: auto; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 4rem; }
  .feature-grid, .pricing-grid, .download-grid { grid-template-columns: 1fr; }
  .account-detail-grid, .account-address-row { grid-template-columns: 1fr; }
  .account-summary div { grid-template-columns: 1fr; gap: .25rem; }
}
@media (max-width: 540px) {
  .site-header { height: 3.75rem; }
  .hero { padding-top: 3rem; }
  h1 { font-size: clamp(2.7rem, 15vw, 4.4rem); }
  .site-footer { align-items: flex-start; flex-direction: column; }
}