/* OPERA NG one-pager — design system mirrored from arcovis.cloud */

:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #5f6368;
  --line: #e8e8e8;
  --panel: #f7f7f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 32px 6vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text);
}

.logo {
  display: block;
  height: 52px;
  width: auto;
}

.footer-logo {
  height: 36px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  margin-left: 24px;
}

main { flex: 1; }

.hero {
  padding: 90px 6vw 80px;
  max-width: 1100px;
}

.eyebrow {
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

h1 {
  font-size: clamp(42px, 7vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.055em;
  margin: 0 0 28px;
  max-width: 1000px;
}

.hero p {
  font-size: clamp(18px, 2vw, 24px);
  color: var(--muted);
  max-width: 760px;
  margin: 0 0 40px;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}

.button.primary {
  background: #000;
  color: #fff;
}

.button.secondary {
  border: 1px solid #000;
  color: #000;
}

.spa {
  background: var(--panel);
  border-top: 1px solid var(--line);
  padding: 80px 6vw;
}

.spa-inner {
  max-width: 1100px;
}

.spa h2 {
  margin: 0 0 24px;
  font-size: clamp(32px, 4.5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.spa-lead {
  margin: 0 0 40px;
  font-size: clamp(18px, 2vw, 23px);
  color: var(--muted);
  max-width: 820px;
}

.spa-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
  border-top: 1px solid var(--line);
}

.spa-points li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 17px;
}

.spa-points strong {
  color: var(--text);
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.card {
  padding: 42px 3vw;
  border-right: 1px solid var(--line);
  min-height: 240px;
}

.card:nth-child(3n) { border-right: 0; }
.card:nth-child(-n+3) { border-bottom: 1px solid var(--line); }

.card h2 {
  margin: 0 0 14px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.section {
  padding: 72px 6vw;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.section h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.section ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.section li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 18px;
}

.section + .section {
  padding-top: 0;
}

.cta {
  margin: 0 6vw 80px;
  padding: 48px;
  background: var(--panel);
  border-radius: 28px;
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: center;
}

.cta h2 {
  margin: 0 0 10px;
  font-size: 32px;
  letter-spacing: -0.04em;
}

.cta p {
  margin: 0;
  color: var(--muted);
  max-width: 620px;
}

footer {
  padding: 28px 6vw;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 820px) {
  header { align-items: flex-start; gap: 18px; flex-direction: column; }
  .logo { height: 44px; }
  .spa-points { grid-template-columns: 1fr; }
  nav a { margin: 0 18px 0 0; }
  .grid { grid-template-columns: 1fr; }
  .card { border-right: 0; border-bottom: 1px solid var(--line); padding: 42px 6vw; }
  .card:nth-child(3n) { border-right: 0; }
  .card:last-child { border-bottom: 0; }
  .section { grid-template-columns: 1fr; gap: 32px; }
  .cta { flex-direction: column; align-items: flex-start; padding: 32px; }
}