:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --border: #e5e7eb;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --ok: #15803d;
  --radius: 14px;
  --shadow: 0 10px 28px rgba(15, 23, 42, .1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
}

.site-header {
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.35), transparent 40%),
    radial-gradient(circle at 80% 15%, rgba(255,255,255,.25), transparent 35%),
    linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #fff;
}

.site-header .inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: .9rem 1.25rem;
  display: flex;
  align-items: center;
}

.logo a {
  text-decoration: none;
  color: #fff;
  background: rgba(255,255,255,.2);
  border-radius: 999px;
  padding: .42rem .9rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.actions {
  margin-left: auto;
  display: flex;
  gap: .55rem;
}

.btn {
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.35);
  padding: .44rem .85rem;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
}

.btn.primary {
  background: rgba(255,255,255,.2);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem;
}

.hero {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem 1.3rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.45rem, 4vw, 2.1rem);
}

.hero p {
  margin: .7rem 0 0;
  color: var(--muted);
  max-width: 780px;
}

.hero-product {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(260px, 460px) 1fr;
  gap: 1rem;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.hero-image-wrap {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #f8fafc;
}

.hero-image-wrap img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.hero-copy h2 {
  margin: 0 0 .4rem;
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
}

.hero-copy p {
  margin: 0;
  color: var(--muted);
}

.hero-copy ul {
  margin-top: .6rem;
}

.grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .9rem;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 .3rem;
  font-size: 1.04rem;
}

.price {
  font-size: 1.26rem;
  font-weight: 900;
  margin: .2rem 0;
}

.subprice {
  color: var(--muted);
  font-size: .88rem;
  margin-bottom: .6rem;
}

ul {
  margin: .45rem 0 0;
  padding-left: 1rem;
}

li { margin: .25rem 0; }

.label {
  display: inline-block;
  margin-bottom: .35rem;
  background: #fff7ed;
  color: #9a3412;
  border: 1px solid #fed7aa;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .5rem;
}

.features {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem;
}

.feature {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .9rem .95rem;
}

.feature h4 {
  margin: 0 0 .3rem;
  font-size: 1rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
}

.tags {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.tag {
  border-radius: 999px;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
  background: #eff6ff;
  padding: .28rem .58rem;
  font-size: .8rem;
  font-weight: 700;
}

@media (max-width: 930px) {
  .hero-product { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
}