/* Reset & base */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* Palette & helpers */
:root {
  --bg-dark: #1a0a25;
  --bg-fiber: rgba(0,0,0,0.25);
  --glass: rgba(255,255,255,0.12);
  --text: #f9f2e0;
  --muted: #e4d6b8;
  --beige: #f6e6c0;
  --beige-dark: #e5d2a3;
  --cta: #8a5aff;
  --cta-dark: #6a3bd5;
  --shadow: 0 8px 28px rgba(0,0,0,0.4);
  --ring: 0 0 0 4px rgba(138, 95, 255, 0.4);
  --radius: 14px;
  --text-glow: 0 0 6px rgba(166,119,255,0.9);
}

/* Purple carbon fiber background */
body {
  min-height: 100vh;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  line-height: 1.6;
  background-color: var(--bg-dark);
  /* subtle purple carbon-fiber pattern */
  background-image:
    linear-gradient(135deg, rgba(0,0,0,0.25) 25%, transparent 25%),
    linear-gradient(225deg, rgba(0,0,0,0.25) 25%, transparent 25%),
    linear-gradient(315deg, rgba(255,255,255,0.08) 25%, transparent 25%),
    linear-gradient(45deg, rgba(255,255,255,0.08) 25%, transparent 25%);
  background-size: 18px 18px;
  background-color: #2a0a3b;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

/* Header (hero vibe) */
header {
  padding: 20px 16px;
  text-align: center;
  background: rgba(20, 0, 40, 0.6);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: saturate(120%) blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}
header h1 {
  margin: 6px 0;
  font-size: clamp(1.4rem, 4vw, 2.4rem);
  color: #f7ecd4;
  letter-spacing: .3px;
  text-shadow: var(--text-glow);
}

/* Main content area (centered, frosted card for image) */
main {
  display: grid;
  place-items: center;
  padding: 24px 16px;
}
.image-frame {
  width: min(92%, 640px);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.28);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
}
.image-frame img {
  display: block;
  width: 100%;
  height: auto;
}

/* Footer with frosted "ad" card + CTA */
footer {
  padding: 20px 16px 40px;
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
  color: var(--text);
  background: rgba(0,0,0,0.15);
  border-top: 1px solid rgba(255,255,255,0.15);
}
.product-ad {
  width: min(92%, 720px);
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: grid;
  gap: 6px;
  align-items: center;
}
.product-ad h3 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--beige);
}
.product-ad a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #6b3c95 0%, #402a66 100%);
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}
.product-ad a:hover { filter: brightness(1.05); transform: translateY(-1px); }
.product-ad a:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}
footer > p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

/* Small screens adjustments */
@media (min-width: 700px) {
  header { padding: 28px 20px; }
  header h1 { font-size: 2rem; }
  main { padding: 40px 0; }
}