:root {
  --bg: #0c1117;
  --bg-elevated: #121a24;
  --surface: #161f2c;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eef6;
  --muted: #9aa7b8;
  --accent: #3dd6c3;
  --accent-dim: #2ba896;
  --focus: #7ae8dc;
  --radius: 12px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --max: 1080px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a35 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #13232a 0%, transparent 50%), var(--bg);
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--focus);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  z-index: 100;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 17, 23, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 16px;
  gap: 24px;
}

.logo {
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.125rem;
  color: var(--text);
  text-decoration: none;
}

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

.nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.hero {
  padding: clamp(56px, 10vw, 96px) 0 clamp(48px, 8vw, 72px);
}

.hero-inner {
  max-width: 720px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}

.lead {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 28px;
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease,
    transform 0.1s ease;
}

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

.btn-primary {
  background: var(--accent);
  color: #041016;
}

.btn-primary:hover {
  background: var(--focus);
  color: #041016;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: rgba(61, 214, 195, 0.45);
  color: var(--accent);
}

.section {
  padding: clamp(56px, 8vw, 88px) 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(22, 31, 44, 0.35) 0%, transparent 100%);
  border-block: 1px solid var(--border);
}

.section-head {
  max-width: 560px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.section-head-tight {
  margin-bottom: 24px;
}

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.cards .card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.cards h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.cards p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.split {
  display: grid;
  gap: 40px;
  align-items: start;
}

@media (min-width: 880px) {
  .split {
    grid-template-columns: 1fr minmax(280px, 340px);
    gap: 56px;
  }
}

.checklist {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
}

.checklist li {
  margin-bottom: 10px;
}

.checklist li::marker {
  color: var(--accent);
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.callout blockquote {
  margin: 0;
}

.callout blockquote p {
  margin: 0 0 16px;
  font-size: 1.05rem;
  line-height: 1.55;
}

.callout footer {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-inner {
  display: grid;
  gap: 40px;
}

@media (min-width: 880px) {
  .contact-inner {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 48px;
  }
}

.contact-details {
  font-style: normal;
  color: var(--muted);
}

.contact-details strong {
  color: var(--text);
}

.contact-details p {
  margin: 0 0 8px;
}

.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: transparent;
}

.fineprint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-brand,
.footer-note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}