:root {
  --bg: #f6f4ff;
  --bg-soft: #f1eeff;
  --paper: rgba(255, 255, 255, 0.76);
  --paper-strong: rgba(248, 246, 255, 0.92);
  --ink: #171426;
  --muted: #615c77;
  --line: rgba(84, 71, 133, 0.12);
  --line-strong: rgba(84, 71, 133, 0.18);
  --blue: #4f7cff;
  --blue-soft: #6ec4ff;
  --pink: #ff63b8;
  --pink-soft: #ff9ee2;
  --shadow: 0 28px 80px rgba(68, 56, 122, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(79, 124, 255, 0.20), transparent 30%),
    radial-gradient(circle at 80% 18%, rgba(255, 99, 184, 0.18), transparent 28%),
    linear-gradient(180deg, #f9f7ff 0%, #f1efff 52%, #f7fbff 100%);
  color: var(--ink);
  font-family: "Inter", "Helvetica Neue", "Arial", sans-serif;
  overflow-x: hidden;
  position: relative;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(90px);
  pointer-events: none;
  opacity: 0.9;
  z-index: 0;
}

.ambient-top {
  width: 520px;
  height: 320px;
  top: -120px;
  left: calc(50% - 260px);
  background: radial-gradient(circle, rgba(110, 196, 255, 0.26), transparent 70%);
}

.ambient-left {
  width: 340px;
  height: 340px;
  top: 280px;
  left: -120px;
  background: radial-gradient(circle, rgba(79, 124, 255, 0.28), transparent 72%);
}

.ambient-right {
  width: 380px;
  height: 380px;
  top: 140px;
  right: -100px;
  background: radial-gradient(circle, rgba(255, 99, 184, 0.26), transparent 70%);
}

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 72px;
  position: relative;
  z-index: 1;
}

.shell {
  border-radius: 32px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.56)),
    var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 28px;
  padding: 34px;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(79, 124, 255, 0.16), transparent 35%),
    linear-gradient(315deg, rgba(255, 99, 184, 0.12), transparent 34%);
  pointer-events: none;
}

.hero-copy,
.hero-panel,
.feature-card,
.download-strip,
.footer {
  position: relative;
  z-index: 1;
}

.eyebrow,
.block-label,
.panel-label,
.preview-kicker {
  margin: 0 0 12px;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(54, 42, 103, 0.68);
}

.hero h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
  font-weight: 500;
}

.intro,
.body-copy,
.list li,
.hero-note,
.footer p,
.preview-source p,
.preview-result p,
.step p {
  color: var(--muted);
  line-height: 1.72;
  font-size: 1rem;
}

.intro {
  margin: 20px 0 0;
  max-width: 58ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: center;
  margin-top: 26px;
}

.hero-note {
  margin: 0;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-soft), var(--blue) 44%, var(--pink));
  color: white;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.01em;
  box-shadow: 0 18px 40px rgba(76, 110, 255, 0.34);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.download-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 44px rgba(76, 110, 255, 0.38);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-tags span,
.download-meta span,
.stat-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(84, 71, 133, 0.10);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  padding: 10px 14px;
  font-size: 0.88rem;
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.hero-panel-top {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(79, 124, 255, 0.16), rgba(255, 99, 184, 0.12)),
    rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
}

.panel-title {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.35;
  letter-spacing: -0.03em;
}

.app-icon {
  width: 84px;
  height: 84px;
  display: block;
  border-radius: 24px;
  box-shadow: 0 18px 38px rgba(7, 11, 30, 0.34);
}

.preview-window {
  border-radius: 28px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(180deg, rgba(252, 250, 255, 0.96), rgba(241, 237, 255, 0.90)),
    var(--paper-strong);
  overflow: hidden;
}

.preview-toolbar {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(84, 71, 133, 0.10);
}

.preview-toolbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(84, 71, 133, 0.24);
}

.preview-body {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.preview-source,
.preview-result {
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(84, 71, 133, 0.10);
}

.preview-source p,
.preview-result p {
  margin: 0;
}

.preview-action {
  display: inline-flex;
  align-self: start;
  justify-self: start;
  padding: 10px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(110, 196, 255, 0.22), rgba(255, 99, 184, 0.22));
  border: 1px solid rgba(84, 71, 133, 0.10);
  color: var(--ink);
  font-weight: 600;
}

.download-strip {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-top: 18px;
  padding: 24px 28px;
}

.download-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(79, 124, 255, 0.12), transparent 35%),
    linear-gradient(320deg, rgba(255, 99, 184, 0.10), transparent 32%);
  pointer-events: none;
}

.download-strip .body-copy {
  margin: 0;
  max-width: 56ch;
}

.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.feature-card {
  padding: 26px 26px 28px;
  min-height: 100%;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(79, 124, 255, 0.10), transparent 32%),
    radial-gradient(circle at bottom right, rgba(255, 99, 184, 0.08), transparent 30%);
  pointer-events: none;
}

.feature-card h2 {
  margin: 0 0 14px;
  max-width: 18ch;
  font-size: clamp(1.45rem, 3vw, 2.05rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
  font-weight: 550;
}

.feature-card-large {
  grid-column: span 8;
}

.feature-card-checklist {
  grid-column: span 4;
}

.list {
  margin: 0;
  padding-left: 20px;
}

.list li + li {
  margin-top: 10px;
}

.footer p {
  margin: 0;
}

.footer {
  margin-top: 18px;
  padding: 24px 28px;
}

code {
  font-family: "SF Mono", "Menlo", monospace;
  background: rgba(84, 71, 133, 0.08);
  color: var(--ink);
  border-radius: 8px;
  padding: 2px 6px;
}

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

  .feature-card-large,
  .feature-card-checklist {
    grid-column: span 12;
  }
}

@media (max-width: 700px) {
  .page {
    width: min(100% - 20px, 1120px);
    padding-top: 20px;
  }

  .hero {
    padding: 22px;
  }

  .hero h1 {
    font-size: clamp(2rem, 12vw, 3.1rem);
  }

  .hero-panel-top {
    grid-template-columns: 72px 1fr;
  }

  .app-icon {
    width: 72px;
    height: 72px;
  }

  .download-strip {
    display: block;
    padding: 22px;
  }

  .download-meta {
    margin-top: 16px;
  }

  .feature-card,
  .footer {
    padding: 22px;
  }
}