:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --brand: #0f766e;
  --brand-strong: #115e59;
  --brand-soft: #ccfbf1;
  --badge-soon-bg: #ecfdf5;
  --badge-soon-text: #047857;
  --badge-dev-bg: #eff6ff;
  --badge-dev-text: #1d4ed8;
  --radius: 14px;
  --max: 1080px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --surface: #111a2e;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --line: #1e293b;
    --brand: #2dd4bf;
    --brand-strong: #5eead4;
    --brand-soft: #134e4a;
    --badge-soon-bg: #052e2b;
    --badge-soon-text: #6ee7b7;
    --badge-dev-bg: #0c1a3a;
    --badge-dev-text: #93c5fd;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--brand);
}

a:hover {
  color: var(--brand-strong);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 16px;
  top: 16px;
  background: var(--surface);
  padding: 8px 12px;
  border-radius: 8px;
  z-index: 10;
}

/* Header */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.brand svg {
  width: 30px;
  height: 30px;
  flex: none;
}

nav.main {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.95rem;
}

nav.main a {
  color: var(--muted);
  text-decoration: none;
}

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

nav.main .lang {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 12px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  nav.main .section-link {
    display: none;
  }
}

/* Hero */
.hero {
  padding: 88px 0 72px;
}

.kicker {
  display: inline-block;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 999px;
  padding: 4px 14px;
  margin: 0 0 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  max-width: 22ch;
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 32px;
}

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

.btn {
  display: inline-block;
  border-radius: 10px;
  padding: 11px 20px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn.primary {
  background: var(--brand);
  color: #fff;
}

@media (prefers-color-scheme: dark) {
  .btn.primary {
    color: #042f2e;
  }
}

.btn.primary:hover {
  background: var(--brand-strong);
  color: #fff;
}

.btn.secondary {
  border-color: var(--line);
  color: var(--text);
  background: var(--surface);
}

/* Sections */
section {
  padding: 64px 0;
}

section + section {
  border-top: 1px solid var(--line);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}

.section-intro {
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 36px;
}

/* Products */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
}

.card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.card h3 {
  margin: 0;
  font-size: 1.3rem;
}

.card .tagline {
  color: var(--brand);
  font-weight: 600;
  margin: 0 0 14px;
}

.card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.card li + li {
  margin-top: 6px;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

.badge.soon {
  background: var(--badge-soon-bg);
  color: var(--badge-soon-text);
}

.badge.dev {
  background: var(--badge-dev-bg);
  color: var(--badge-dev-text);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px 40px;
}

@media (max-width: 640px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-grid h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.about-grid p {
  margin: 0;
  color: var(--muted);
}

/* Contact */
.contact {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

/* Footer */
footer.site {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}