:root {
  color-scheme: light dark;
  --orange: #ff6d00;
  --teal: #00c7db;
  --ink: #111417;
  --muted: #65707d;
  --line: #dce2e9;
  --paper: #ffffff;
  --wash: #f4f7fa;
  --header: #101316;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(255, 109, 0, 0.08), transparent 34rem),
    var(--wash);
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px min(5vw, 56px);
  background: var(--header);
  color: #ffffff;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 850;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--orange), #111417 70%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-weight: 900;
}

nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

nav a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

nav a:hover {
  color: #ffffff;
}

main {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 34px;
  align-items: center;
  padding: 74px 0 42px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--orange);
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

h1 {
  margin: 0 0 18px;
  max-width: 780px;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  line-height: 1.02;
}

h2 {
  margin: 0 0 10px;
  line-height: 1.15;
}

p {
  margin: 0 0 16px;
  color: var(--muted);
}

.hero-copy > p:not(.eyebrow) {
  max-width: 680px;
  font-size: 1.14rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  background: var(--orange);
  color: #ffffff;
  text-decoration: none;
  font-weight: 850;
}

.button.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.product-panel,
.content-card,
.cards article,
.notice {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(17, 20, 23, 0.08);
}

.product-panel {
  padding: 28px;
}

.app-logo {
  width: 82px;
  height: 82px;
  border-radius: 18px;
  margin-bottom: 18px;
  box-shadow: 0 16px 28px rgba(17, 20, 23, 0.14);
}

.preview-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.preview-list div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(244, 247, 250, 0.72);
}

.preview-list span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.preview-list strong {
  text-align: right;
  font-size: 0.95rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 12px 0 24px;
}

.cards article,
.notice,
.content-card {
  padding: 26px;
}

.cards a,
.contact a,
.policy a {
  color: var(--orange);
  font-weight: 850;
}

.notice {
  margin: 18px 0 56px;
}

.page {
  padding: 46px 0 56px;
}

.content-card {
  max-width: 860px;
  margin: 0 auto;
}

.support-box {
  padding: 20px;
  border: 1px solid rgba(255, 109, 0, 0.28);
  border-radius: 8px;
  background: rgba(255, 109, 0, 0.08);
  margin: 22px 0;
}

ul {
  margin: 0 0 20px;
  padding-left: 20px;
  color: var(--muted);
}

.policy h2,
.contact h2 {
  margin-top: 28px;
}

.updated {
  font-size: 0.95rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px min(5vw, 56px);
  border-top: 1px solid var(--line);
}

footer p {
  margin: 0;
}

footer a {
  color: var(--orange);
  font-weight: 750;
}

@media (max-width: 820px) {
  .site-header,
  footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .cards {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f5f7fa;
    --muted: #aab4c0;
    --line: #2c333a;
    --paper: #171b1f;
    --wash: #0f1215;
    --header: #080a0c;
  }

  .button.secondary {
    color: #ffffff;
  }

  .preview-list div {
    background: rgba(255, 255, 255, 0.04);
  }
}