/* Reset & base */
*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

:root {
  --bg: #0b1020;
  --card: rgba(12, 18, 40, 0.65);
  --glass: rgba(255,255,255,0.08);
  --beige1: #e9d6b2;
  --beige2: #d8c5a0;
  --beige3: #d6b993;
  --text: #f5efe3;
  --muted: #c6b8a0;
  --accent: #2ef6ff;
  --cta: #0a2a55;
  --shadow: 0 16px 40px rgba(0,0,0,.5);
  --ring: 3px solid rgba(46,246,255,.8);
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI";
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(135deg, rgba(238,223,177,.25) 25%, transparent 25%),
    linear-gradient(315deg, rgba(238,223,177,.25) 25%, transparent 25%),
    linear-gradient(45deg, rgba(223,199,149,.25) 25%, transparent 25%),
    linear-gradient(225deg, rgba(223,199,149,.25) 25%, transparent 25%),
    linear-gradient(to bottom, rgba(5,8,22,.95), rgba(5,8,22,.95));
  background-size: 60px 60px, 60px 60px, 60px 60px, 60px 60px, 100% 100%;
  background-position: 0 0, 30px 0, 15px 30px, 45px 60px, 0 0;
  min-height: 100dvh;
  padding: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  display: grid;
  place-items: center;
  padding: 2rem 0;
}

.image-frame {
  width: min(92vw, 900px);
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  background: rgba(12,18,40,.65);
  border: 1px solid rgba(255,255,255,.15);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05);
}

footer {
  margin-top: 2rem;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  color: var(--muted);
}

.product-ad {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem 0.75rem;
  border-radius: 999px;
  background: rgba(6,8,26,.75);
  border: 1px solid rgba(255,255,255,.15);
  margin: 0 auto 0.5rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.product-ad h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: #f0ead8;
  letter-spacing: .2px;
}

.product-ad a {
  text-decoration: none;
  color: #e9f1ff;
  background: #0a2a55;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.25);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  transition: transform .2s ease, background .2s ease;
}
.product-ad a:hover {
  background: #0c3a7a;
  transform: translateY(-1px);
}
.product-ad a:focus-visible {
  outline: var(--ring);
  outline-offset: 2px;
}

.product-ad p { margin: 0; font-weight: 500; color: #f3e7ce; }

footer p { margin: .75rem 0 0; font-size: .9rem; color: #c9c0a3; }

@media (min-width: 700px) {
  main { padding: 4rem 0; }
  .image-frame { border-radius: 28px; }
  .product-ad h3 { font-size: 1rem; }
}

@media (min-width: 1024px) {
  :root { --bg: #050c1a; }
  main { padding: 6rem 0; }
  .image-frame { width: min(60vw, 720px); aspect-ratio: 16/9; }
}