@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Manrope:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: dark;
  --bg: #06120d;
  --surface: rgba(11, 27, 21, 0.9);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --text: #eefaf4;
  --text-soft: rgba(238, 250, 244, 0.74);
  --line: rgba(177, 228, 204, 0.12);
  --brand: #2fa084;
  --brand-soft: #9deacb;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

body[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f7f2;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: rgba(47, 160, 132, 0.08);
  --text: #0d1713;
  --text-soft: rgba(13, 23, 19, 0.72);
  --line: rgba(15, 35, 27, 0.1);
  --shadow: 0 24px 64px rgba(17, 33, 26, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  font-size: 15.5px;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(47, 160, 132, 0.34), transparent 28%),
    radial-gradient(circle at bottom right, rgba(215, 255, 188, 0.2), transparent 24%),
    var(--bg);
}

a { color: inherit; text-decoration: none; }

.app-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.2rem;
}

.app-panel {
  width: min(62rem, 100%);
  padding: 1.5rem;
  border-radius: 2rem;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.brand-lockup {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.brand-mark {
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 1rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-soft);
}

h1 {
  margin: 0;
  font-size: clamp(1.95rem, 4.3vw, 3.2rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.lead {
  margin: 1.3rem 0 0;
  max-width: 48rem;
  color: var(--text-soft);
  line-height: 1.75;
  font-size: 0.95rem;
}

.theme-toggle,
.button {
  border-radius: 999px;
  border: 1px solid var(--line);
  min-height: 2.85rem;
  cursor: pointer;
  font: inherit;
}

.theme-toggle {
  width: 3rem;
  background: var(--surface-strong);
  color: var(--text);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  padding: 1.3rem;
  border-radius: 1.5rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.card.highlight {
  background: linear-gradient(145deg, rgba(47, 160, 132, 0.16), rgba(255, 255, 255, 0.04));
}

.card-kicker {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-soft);
}

.card h2 {
  margin: 0;
  font-size: 1.18rem;
  letter-spacing: -0.04em;
}

.card p,
.card li {
  color: var(--text-soft);
  line-height: 1.72;
  font-size: 0.92rem;
}

.card ul {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.25rem;
  font-weight: 600;
}

.button.primary {
  background: linear-gradient(135deg, var(--brand), #1f6f5f);
  color: #f6fff9;
}

.button.secondary {
  background: transparent;
  color: var(--text);
}

.footer-note {
  margin: 1.25rem 0 0;
  color: var(--text-soft);
  font-size: 0.86rem;
}

@media (max-width: 760px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .brand-row {
    flex-direction: column;
  }
}