:root {
  color-scheme: dark;
  --bg: #071019;
  --bg-2: #091522;
  --panel: rgba(12, 24, 36, 0.96);
  --panel-2: rgba(9, 18, 28, 0.95);
  --line: rgba(166, 205, 248, 0.14);
  --line-strong: rgba(166, 205, 248, 0.22);
  --text: #eaf3fb;
  --muted: #aabacc;
  --accent: #7ebaff;
  --accent-strong: #4f90e6;
  --accent-soft: rgba(126, 186, 255, 0.12);
  --success: #5ed7bf;
  --warn: #f3c96f;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.34);
  --radius-card: 14px;
  --radius-button: 10px;
  --radius-panel: 18px;
  --site-max: 1400px;
  --content-max: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 12%, rgba(20, 68, 126, 0.22), transparent 18%),
    radial-gradient(circle at 88% 10%, rgba(94, 215, 191, 0.08), transparent 18%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

img { max-width: 100%; display: block; }

.site-shell {
  max-width: var(--site-max);
  margin: 0 auto;
  padding: 20px 24px 28px;
}

.site-header {
  max-width: var(--content-max);
  margin: 0 auto 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-logo {
  width: clamp(148px, 15vw, 220px);
  height: auto;
  flex: 0 0 auto;
}

.brand-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.brand-tag {
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.content {
  max-width: var(--content-max);
  margin: 0 auto;
}

.hero-grid,
.checkout-grid,
.detail-grid {
  display: grid;
  gap: 18px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.28fr) minmax(320px, 0.72fr);
  align-items: stretch;
}

.checkout-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  align-items: start;
}

.detail-grid {
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.84fr);
  align-items: center;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  box-shadow: var(--shadow);
}

.panel-inner {
  padding: 22px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 2.8vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h2 {
  margin: 0 0 14px;
  font-size: 28px;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

h3 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.lede,
.body-copy {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.small,
.fineprint {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.badge-row,
.button-row,
.inline-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(126, 186, 255, 0.08);
  color: var(--text);
  font-size: 12px;
}

.badge.good {
  background: rgba(94, 215, 191, 0.1);
  border-color: rgba(94, 215, 191, 0.18);
}

.badge.warn {
  background: rgba(243, 201, 111, 0.1);
  border-color: rgba(243, 201, 111, 0.18);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-button);
  border: 1px solid transparent;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  color: #06111a;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 150ms ease, filter 150ms ease, background-color 150ms ease, border-color 150ms ease;
}

.button:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

.button.secondary {
  background: rgba(8, 20, 31, 0.96);
  color: var(--text);
  border-color: var(--line);
}

.button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.button.full-mobile {
  width: auto;
}

.card,
.feature-card,
.pricing-card,
.summary-card,
.form-card,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(180deg, rgba(11, 22, 34, 0.94), rgba(8, 16, 25, 0.97));
}

.card,
.pricing-card,
.summary-card,
.form-card {
  padding: 16px;
}

.card-grid,
.feature-grid {
  display: grid;
  gap: 14px;
}

.card-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-card {
  display: grid;
  gap: 12px;
}

.product-media,
.screenshot-frame {
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid rgba(166, 205, 248, 0.12);
  background: rgba(6, 14, 21, 0.8);
}

.product-media img,
.screenshot-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-meta {
  display: grid;
  gap: 6px;
}

.product-name {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.product-price {
  color: var(--warn);
  font-weight: 700;
}

.product-subtitle {
  color: var(--muted);
  font-size: 14px;
}

.card-list,
.feature-list,
.check-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.feature-card {
  padding: 14px;
  display: grid;
  gap: 10px;
}

.feature-icon {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(126, 186, 255, 0.1);
  color: var(--text);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.pricing-card {
  display: grid;
  gap: 12px;
}

.pricing-price {
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.pricing-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-copy {
  display: grid;
  gap: 12px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item .faq-answer {
  padding: 0 16px 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.sticky-mobile-cta {
  display: none;
  position: sticky;
  bottom: 12px;
  z-index: 30;
}

.sticky-mobile-cta .bar {
  display: flex;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(8, 18, 28, 0.96);
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  gap: 12px;
}

.customer-fields {
  gap: 10px;
}

.customer-email,
.customer-name {
  width: 100%;
}

.customer-email input {
  min-height: 48px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-row.address-line-1 {
  grid-template-columns: minmax(0, 1fr) 116px;
}

.form-row.address-line-2 {
  grid-template-columns: 120px minmax(0, 1fr);
}

label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 13px;
  border-radius: 12px;
  border: 1px solid rgba(166, 205, 248, 0.18);
  background: rgba(4, 12, 19, 0.82);
  color: var(--text);
  font: inherit;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.output {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  padding: 14px;
  min-height: 150px;
  border-radius: 12px;
  border: 1px solid rgba(166, 205, 248, 0.14);
  background: rgba(4, 12, 19, 0.72);
  color: #d8e7f5;
  font-size: 14px;
  line-height: 1.55;
}

@media (max-width: 1100px) {
  .hero-grid,
  .checkout-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-shell {
    padding: 14px 14px 24px;
  }

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

  .site-nav {
    justify-content: flex-start;
  }

  .panel-inner {
    padding: 16px;
  }

  .feature-grid,
  .card-grid,
  .form-row,
  .form-row.address-line-1,
  .form-row.address-line-2 {
    grid-template-columns: 1fr;
  }

  .sticky-mobile-cta {
    display: block;
  }

  .button.full-mobile {
    width: 100%;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }
}