:root {
  --ink-900: #152432;
  --ink-700: #3a5065;
  --mist-100: #f3f7f7;
  --sand-100: #f6f0e8;
  --teal-600: #0d7a74;
  --teal-700: #085f5a;
  --white: #ffffff;
  --line: rgba(21, 36, 50, 0.14);
  --radius-xl: 22px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", "Segoe UI", sans-serif;
  color: var(--ink-900);
  background:
    radial-gradient(1200px 500px at 0% -10%, #d9ecef 0%, transparent 65%),
    radial-gradient(900px 420px at 100% 0%, #f4e7d2 0%, transparent 64%),
    linear-gradient(160deg, var(--mist-100) 0%, #eef5f2 40%, var(--sand-100) 100%);
}

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.38) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.38) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.6;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 28px auto 48px;
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.brand {
  margin: 0;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 700;
  color: #0f6f6a;
}

.mode-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
}

.mode-pill {
  text-decoration: none;
  color: var(--ink-900);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 8px 14px;
  border-radius: 999px;
}

.mode-pill.active {
  background: linear-gradient(135deg, var(--teal-600), var(--teal-700));
  color: var(--white);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
  gap: 16px;
  margin-bottom: 18px;
}

.hero-copy,
.hero-panel,
.feature-card,
.steps {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.83);
  backdrop-filter: blur(4px);
  animation: rise 500ms ease both;
}

.hero-copy {
  padding: 34px;
}

.eyebrow {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #0c6a65;
}

h1 {
  margin: 12px 0 14px;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(2rem, 2vw + 1.2rem, 3.15rem);
  line-height: 1.02;
}

.subtitle {
  margin: 0;
  max-width: 58ch;
  color: var(--ink-700);
  line-height: 1.5;
}

.actions {
  margin-top: 26px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  font-weight: 700;
  border-radius: 12px;
  padding: 12px 16px;
}

.btn-primary {
  color: var(--white);
  background: linear-gradient(136deg, var(--teal-600), var(--teal-700));
}

.btn-secondary {
  border: 1px solid var(--line);
  color: var(--ink-900);
  background: rgba(255, 255, 255, 0.82);
}

.hero-panel {
  padding: 24px;
  animation-delay: 110ms;
}

.hero-panel h2 {
  margin: 0 0 12px;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.6rem;
}

.hero-panel ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: var(--ink-700);
  line-height: 1.4;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.feature-card {
  padding: 18px;
  animation-delay: 180ms;
}

.feature-tag {
  margin: 0;
  color: #0f6f6a;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.feature-card h3 {
  margin: 10px 0 8px;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.4rem;
}

.feature-card p {
  margin: 0;
  color: var(--ink-700);
  line-height: 1.45;
}

.steps {
  padding: 22px;
  animation-delay: 240ms;
}

.steps h2 {
  margin: 0 0 14px;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.8rem;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.step-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 14px;
}

.step-grid span {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--teal-600), var(--teal-700));
}

.step-grid p {
  margin: 10px 0 0;
  color: var(--ink-700);
  line-height: 1.4;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero,
  .feature-grid,
  .step-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 26px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(1120px, calc(100% - 20px));
    margin-top: 20px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}