:root {
  --bg: #eef8f5;
  --card: #ffffff;
  --ink: #12312b;
  --muted: #5b716c;
  --brand: #087f6b;
  --brand-dark: #056252;
  --line: #d9ebe7;
  --danger: #9f1d1d;
  --success: #0f6f4d;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top left, #d4f2ec, var(--bg) 45%, #f8fffd);
}

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 56px auto 24px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
  align-items: stretch;
}

.hero-card, .contact-card {
  background: rgba(255,255,255,.9);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(8, 127, 107, .12);
  padding: 40px;
}

.badge {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--brand-dark);
  font-weight: 700;
  background: #f2fffb;
}

.logo-mark {
  margin-top: 42px;
  width: 76px;
  height: 76px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
  font-size: 52px;
  font-weight: 700;
  box-shadow: 0 18px 36px rgba(8, 127, 107, .25);
}

h1 {
  margin: 28px 0 16px;
  font-size: clamp(2.2rem, 5vw, 4.7rem);
  line-height: .98;
  letter-spacing: -0.06em;
}

.lead {
  max-width: 680px;
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--muted);
}

.features {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.features div {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
  background: #fbfffe;
}

.features strong, .features span { display: block; }
.features span { margin-top: 8px; color: var(--muted); font-size: .95rem; line-height: 1.5; }
.notice { margin-top: 28px; color: var(--muted); font-size: .92rem; }

h2 { margin: 0 0 10px; font-size: 1.8rem; letter-spacing: -0.03em; }
.contact-card p { color: var(--muted); line-height: 1.6; }
form { margin-top: 22px; display: grid; gap: 12px; }
label { font-weight: 700; }
input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  font: inherit;
  color: var(--ink);
  background: #fbfffe;
}
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus { outline: 3px solid rgba(8, 127, 107, .18); border-color: var(--brand); }
button {
  margin-top: 8px;
  border: 0;
  border-radius: 16px;
  padding: 15px 18px;
  background: var(--brand);
  color: white;
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
}
button:hover { background: var(--brand-dark); }
.alert { padding: 12px 14px; border-radius: 14px; margin-top: 14px; }
.success { background: #e9fbf3; color: var(--success); border: 1px solid #bdebd7; }
.error { background: #fff1f1; color: var(--danger); border: 1px solid #f1c8c8; }
.hidden-field { position: absolute; left: -9999px; }
footer { text-align: center; color: var(--muted); font-size: .92rem; padding: 0 16px 24px; }

@media (max-width: 860px) {
  .page-shell { grid-template-columns: 1fr; margin-top: 24px; }
  .hero-card, .contact-card { padding: 26px; border-radius: 22px; }
  .features { grid-template-columns: 1fr; }
}