:root {
  --ink-900: #121417;
  --ink-700: #2b3037;
  --ink-500: #5c6675;
  --cloud-100: #e9ecf1;
  --cloud-50: #f5f7fa;
  --canvas: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", Arial, sans-serif;
  color: var(--ink-700);
  background:
    radial-gradient(1100px 520px at 8% -10%, #dfe5ee 0%, transparent 65%),
    radial-gradient(900px 420px at 95% 15%, #e8ecf3 0%, transparent 60%),
    var(--cloud-50);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  background: color-mix(in srgb, #ffffff 88%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--cloud-100);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.mark {
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, #121417, #5c6675);
  transform: rotate(45deg);
  border-radius: 3px;
}

.brand-name {
  margin: 0;
  letter-spacing: 0.08em;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink-900);
}

.brand-sub {
  margin: 0.08rem 0 0;
  letter-spacing: 0.22em;
  font-size: 0.58rem;
  font-weight: 600;
  color: var(--ink-500);
}

.download {
  text-decoration: none;
  padding: 0.62rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--cloud-100);
  color: var(--ink-900);
  font-size: 0.86rem;
  font-weight: 700;
  background: var(--canvas);
}

main {
  width: min(1400px, 94vw);
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero {
  margin: 0 0 1.8rem;
  padding: 1rem 0 0.6rem;
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--ink-500);
}

h1 {
  margin: 0.6rem 0 0;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  color: var(--ink-900);
}

.lead {
  margin: 1rem 0 0;
  max-width: 72ch;
  font-size: 1.05rem;
  line-height: 1.55;
}

.slides-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 1.2rem;
}

.slide-card {
  margin: 0;
  padding: 1rem;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--cloud-100);
  box-shadow: 0 14px 32px rgba(19, 27, 40, 0.08);
}

.slide-card h2 {
  margin: 0 0 0.75rem;
  font-family: "Fraunces", Georgia, serif;
  color: var(--ink-900);
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
}

.slide-card img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--cloud-100);
  background: #fff;
  display: block;
}

.site-footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  color: var(--ink-500);
  font-size: 0.9rem;
}

@media (min-width: 980px) {
  .slides-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 0.8rem 1rem;
  }

  main {
    width: min(1200px, 96vw);
  }

  .download {
    font-size: 0.76rem;
  }
}