:root {
  --bg: #f2f4f8;
  --surface: #ffffff;
  --text: #0d1321;
  --muted: #5b6477;
  --accent: #2f5bff;
  --border: rgba(13, 19, 33, 0.09);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0d14;
    --surface: #141924;
    --text: #edf0f7;
    --muted: #8b93a6;
    --accent: #7590ff;
    --border: rgba(255, 255, 255, 0.09);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main { max-width: 960px; margin: 0 auto; padding: 28px 16px 48px; }

h1, h2, h3, .wordmark { font-family: ui-rounded, -apple-system, "SF Pro Rounded", sans-serif; }
a { color: inherit; }

/* Navigation */
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.mark { width: 34px; height: 34px; }
.nav-links { display: flex; gap: 20px; font-size: 15px; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero { padding: 88px 0 72px; }
.eyebrow {
  margin: 0 0 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}
.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(40px, 7.5vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.hero h1 span { color: var(--muted); }
.lede { max-width: 32em; margin: 0; font-size: 20px; color: var(--muted); }

/* Sections */
section { margin-bottom: 72px; }
.section-title {
  margin: 0 0 20px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

/* App card */
.app {
  display: flex;
  gap: 28px;
  padding: 28px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.app-icon { flex: none; width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 8px 24px rgba(27, 94, 32, 0.22); }
.app-head { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.app-head h3 { margin: 0 6px 0 0; font-size: 28px; letter-spacing: -0.01em; }
.tag {
  font-size: 13px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.app-sub { margin: 2px 0 12px; color: var(--muted); font-weight: 500; }
.app-body p:not(.app-sub) { margin: 0 0 20px; max-width: 36em; }
.app-links { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; }
.soon { font-size: 15px; color: var(--muted); }

.button {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
}
.button:hover { opacity: 0.88; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.principles > div {
  padding: 24px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.principles h3 { margin: 0 0 8px; font-size: 19px; }
.principles p { margin: 0; color: var(--muted); font-size: 16px; }

/* Support */
.support {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 28px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.support h3 { margin: 0 0 8px; font-size: 22px; }
.support p { margin: 0; max-width: 38em; color: var(--muted); }
.support .button { flex: none; }
.button.accent { background: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) {
  .button.accent { background: #2f5bff; }
}

/* Contact: a light card like the others, with the form inside. */
.contact {
  padding: 36px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.contact h2 { margin: 0 0 8px; font-size: 32px; letter-spacing: -0.02em; }
.contact p { margin: 0 0 24px; color: var(--muted); }
.contact .button { background: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) {
  .contact .button { background: #2f5bff; }
}

.contact-form { display: grid; gap: 16px; max-width: 680px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.contact-form label em { font-style: normal; font-weight: 400; opacity: 0.65; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  padding: 11px 13px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: inherit;
  font: inherit;
  font-size: 16px;
}
.contact-form input, .contact-form select { height: 46px; }
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: inherit; opacity: 0.45; }
.contact-form :focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.contact-form .hp { position: absolute; left: -9999px; }
.form-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.contact-form button { border: 0; cursor: pointer; font: inherit; font-weight: 600; }
.contact-form button:disabled { opacity: 0.5; cursor: default; }
.form-status { margin: 0; min-height: 1.5em; font-size: 15px; }
.form-status[data-kind="error"] { color: #d93636; }
.form-status[data-kind="success"] { color: #1f8f4e; }
@media (prefers-color-scheme: dark) {
  .form-status[data-kind="error"] { color: #ff8a8a; }
  .form-status[data-kind="success"] { color: #7ee2a0; }
}

footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 720px) {
  .hero { padding: 56px 0 48px; }
  .app { flex-direction: column; gap: 18px; padding: 22px; }
  .app-icon { width: 76px; height: 76px; border-radius: 18px; }
  .principles { grid-template-columns: 1fr; }
  .support { flex-direction: column; align-items: flex-start; padding: 22px; }
  .form-row { grid-template-columns: 1fr; }
  .contact { padding: 28px 22px; }
  .nav-links { gap: 14px; }
}