:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --paper: #ffffff;
  --ink: #13213f;
  --muted: #5d677c;
  --line: rgba(19, 33, 63, 0.1);
  --accent: #102b63;
  --shadow: 0 24px 60px rgba(17, 34, 65, 0.08);
  --radius: 30px;
}

* {
  box-sizing: border-box;
}

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

body {
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(16, 43, 99, 0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(16, 43, 99, 0.05), transparent 24%),
    linear-gradient(180deg, #fbfcfd 0%, var(--bg) 100%);
}

img {
  display: block;
  width: 100%;
}

.page {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.stack {
  display: grid;
  gap: 22px;
}

.stack__block {
  display: grid;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.stack__block--hero {
  min-height: calc(100vh - 64px);
  align-content: center;
}

.stack__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  font-weight: 700;
}

.stack__index {
  margin: 0;
  color: var(--accent);
}

.stack__label {
  margin: 0;
}

.stack__media {
  margin: 0;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(239, 243, 248, 0.86));
  border: 1px solid rgba(16, 43, 99, 0.08);
}

.stack__media--hero {
  padding: 18px;
}

.stack__media img {
  border-radius: 18px;
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 18px, 1200px);
    padding-top: 10px;
  }

  .stack__block {
    padding: 14px;
    border-radius: 22px;
  }

  .stack__block--hero {
    min-height: auto;
  }

  .stack__media--hero {
    padding: 10px;
  }
}