:root {
  --bg: #0b0d12;
  --bg-elev: #12151c;
  --border: #1f2430;
  --text: #e9ebf0;
  --text-dim: #9aa1b0;
  --accent: #6ee7b7;
  --accent-strong: #34d399;
  --max-width: 1080px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #ffffff;
    --bg-elev: #f6f7f9;
    --border: #e6e8ec;
    --text: #15181f;
    --text-dim: #5b6270;
    --accent: #0f9d68;
    --accent-strong: #0c7f54;
  }
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --bg-elev: #f6f7f9;
  --border: #e6e8ec;
  --text: #15181f;
  --text-dim: #5b6270;
  --accent: #0f9d68;
  --accent-strong: #0c7f54;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

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

nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

nav a {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-cta {
  background: var(--accent-strong);
  color: #06281c;
  padding: 9px 18px;
  border-radius: 8px;
  font-weight: 600;
}

.nav-cta:hover {
  color: #06281c;
  opacity: 0.9;
}

/* Hero */
.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  display: inline-block;
  color: var(--accent-strong);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  max-width: 760px;
}

.hero p.lede {
  margin-top: 20px;
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 620px;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.98rem;
}

.btn-primary {
  background: var(--accent-strong);
  color: #06281c;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
}

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

/* Sections */
section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.section-head {
  margin-bottom: 40px;
  max-width: 620px;
}

.section-head .eyebrow {
  margin-bottom: 12px;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-head p {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 1.05rem;
}

/* Cards grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 800px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.card .num {
  color: var(--accent-strong);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.card h3 {
  margin-top: 14px;
  font-size: 1.15rem;
  font-weight: 650;
}

.card p {
  margin-top: 10px;
  color: var(--text-dim);
  font-size: 0.97rem;
}

/* How it works list */
.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
}

.step:first-child {
  border-top: none;
}

.step .step-num {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--accent-strong);
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 650;
}

.step p {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: 0.97rem;
  max-width: 560px;
}

/* Contact */
#contact {
  border-bottom: none;
}

.contact-box {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.contact-box h2 {
  max-width: 420px;
}

.contact-box p {
  margin-top: 12px;
  color: var(--text-dim);
}

.contact-email {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-strong);
}

/* Footer */
footer {
  padding: 32px 0;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  nav {
    gap: 16px;
  }
  nav a:not(.nav-cta) {
    display: none;
  }
  .contact-box {
    padding: 32px 24px;
  }
}