:root {
  --bg: #ffffff;
  --text: #0b1220;
  --muted: #f4f6f8;
  --card: #ffffff;
  --border: #e5e7eb;
  --link: #0b1220;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --text: #e5e7eb;
    --muted: #111a2e;
    --card: #0f1730;
    --border: #24304a;
    --link: #e5e7eb;
  }
}

html[data-theme="light"] {
  --bg: #ffffff;
  --text: #0b1220;
  --muted: #f4f6f8;
  --card: #ffffff;
  --border: #e5e7eb;
  --link: #0b1220;
}

html[data-theme="dark"] {
  --bg: #0b1220;
  --text: #e5e7eb;
  --muted: #111a2e;
  --card: #0f1730;
  --border: #24304a;
  --link: #e5e7eb;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.header { border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 16px; }
.brand { font-weight: 700; text-decoration: none; color: var(--link); }
.links { display: flex; gap: 14px; }
.links a { text-decoration: none; color: var(--link); opacity: 0.85; }
.links a.active { opacity: 1; border-bottom: 2px solid var(--link); padding-bottom: 2px; }

.select { background: var(--card); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 8px 10px; }

.hero { padding: 48px 0 18px; }
.kicker { margin: 0 0 10px; opacity: 0.9; }
h1 { margin: 0 0 10px; font-size: 36px; letter-spacing: -0.02em; }
.lead { max-width: 70ch; opacity: 0.9; }

.section { padding: 38px 0; }
.section.muted { background: var(--muted); }
h2 { margin: 0 0 16px; font-size: 24px; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 760px) {
  .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 16px;
  padding: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0 0 10px; opacity: 0.9; }
.cta { text-decoration: none; color: var(--link); font-weight: 600; }

.logos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (min-width: 760px) { .logos { grid-template-columns: repeat(4, 1fr); } }
.logo { border: 1px dashed var(--border); border-radius: 14px; padding: 22px; text-align: center; opacity: 0.8; }

.ctaBox {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 18px;
  padding: 18px;
}

.button {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 700;
}

.form { display: grid; gap: 12px; max-width: 640px; }
.field { display: grid; gap: 6px; }
.field input, .field textarea {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}
.twoCol { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .twoCol { grid-template-columns: 1fr 1fr; } }
.checkbox { align-items: center; }
.checkbox label { display: flex; gap: 10px; align-items: center; }

.footer { border-top: 1px solid var(--border); padding: 18px 0; opacity: 0.9; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}