:root {
  color-scheme: light dark;
  --blue: #3a6ff8;
  --purple: #7b4dff;
  --gradient: linear-gradient(135deg, var(--blue), var(--purple));
  --bg: #fafbff;
  --surface: #ffffff;
  --text: #12131a;
  --muted: #5c6478;
  --border: rgba(18, 19, 26, 0.1);
  --font: "Sora", system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --blue: #7aa2ff;
    --purple: #9b85ff;
    --gradient: linear-gradient(135deg, var(--blue), var(--purple));
    --bg: #0f1117;
    --surface: #161922;
    --text: #f2f3f7;
    --muted: #a7afbd;
    --border: rgba(255, 255, 255, 0.1);
  }

  body {
    background:
      radial-gradient(1000px 520px at 0% 0%, rgba(58, 111, 248, 0.16) 0%, transparent 55%),
      radial-gradient(800px 420px at 100% 0%, rgba(123, 77, 255, 0.12) 0%, transparent 50%),
      var(--bg);
  }

  .card {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  }

  .site-header,
  .site-footer {
    color: var(--text);
  }
}

* { box-sizing: border-box; }

.tm {
  font-size: 0.55em;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
  vertical-align: super;
  margin-left: 0.04em;
  position: relative;
  top: -0.2em;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1000px 520px at 0% 0%, rgba(58, 111, 248, 0.12) 0%, transparent 55%),
    radial-gradient(800px 420px at 100% 0%, rgba(123, 77, 255, 0.1) 0%, transparent 50%),
    var(--bg);
  line-height: 1.6;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.site-header {
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: auto;
  height: 34px;
  max-width: min(140px, 42vw);
  object-fit: contain;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.9rem;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 24px 64px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 24px;
  box-shadow: 0 12px 40px rgba(18, 19, 26, 0.06);
}

h1 {
  margin: 0 0 8px;
  font-size: 1.85rem;
  letter-spacing: -0.02em;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 0 28px;
}

h2 {
  margin: 28px 0 10px;
  font-size: 1.15rem;
}

p, li { color: var(--text); }

ul {
  padding-left: 1.2rem;
  margin: 0 0 12px;
}

li { margin-bottom: 6px; }

.muted { color: var(--muted); }

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--gradient);
  color: #fff !important;
  font-weight: 600;
  text-decoration: none !important;
}

.cta:hover { opacity: 0.92; }

.cta:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(58, 111, 248, 0.45);
  outline-offset: 3px;
}

.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 40px;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 12px;
}

.site-footer nav a {
  color: var(--muted);
}

.product-reviews {
  margin-top: 8px;
}

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

.product-review-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 16px;
}

.product-review-card h3 {
  margin: 8px 0 6px;
  font-size: 1rem;
}

.product-review-card p {
  margin: 0;
}

.product-review-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.product-review-stars {
  color: #c9a227;
  letter-spacing: 0.06em;
}