:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --line: #d9e1e9;
  --brand: #0f766e;
  --accent: #f97316;
  --shadow: 0 12px 40px rgba(13, 24, 39, 0.08);
  --radius-xl: 20px;
  --radius-lg: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -20%, #dff7f2 0%, rgba(223, 247, 242, 0) 65%),
    radial-gradient(1000px 500px at 100% 0%, #fff1df 0%, rgba(255, 241, 223, 0) 60%),
    var(--bg);
  line-height: 1.6;
}

.container {
  width: min(920px, 92%);
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
  background: rgba(244, 246, 248, 0.9);
  border-bottom: 1px solid rgba(217, 225, 233, 0.8);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  text-decoration: none;
  color: #0f2f6a;
  font-weight: 800;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
}

.back-link {
  text-decoration: none;
  color: #0f766e;
  font-weight: 700;
  font-size: 0.92rem;
}

main {
  padding: 34px 0 46px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: clamp(20px, 4vw, 34px);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  border-radius: 999px;
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 800;
}

h1 {
  margin: 0 0 8px;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.7rem, 3.8vw, 2.5rem);
  line-height: 1.15;
}

.meta {
  color: var(--muted);
  margin: 0 0 22px;
}

h2 {
  font-family: "Sora", sans-serif;
  font-size: clamp(1.08rem, 2.2vw, 1.35rem);
  margin: 24px 0 8px;
}

p {
  margin: 8px 0;
}

ul {
  margin: 10px 0 10px 18px;
  padding: 0;
}

li {
  margin: 6px 0;
}

.alert {
  border: 1px solid #fdba74;
  background: #fff7ed;
  border-radius: var(--radius-lg);
  color: #9a3412;
  padding: 12px 14px;
  margin-top: 24px;
}

footer {
  padding: 0 0 34px;
  color: #6b7280;
  font-size: 0.9rem;
}

footer a {
  color: #0f766e;
  font-weight: 700;
  text-decoration: none;
}

footer a:hover,
.back-link:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .nav {
    min-height: 64px;
  }

  .brand {
    font-size: 0.88rem;
  }
}