:root {
  --science-ink: #1e2e33;
  --science-muted: #415f69;
  --science-accent: #17777f;
  --science-accent-warm: #b96d34;
  --science-line: rgba(18, 57, 62, 0.2);
  --science-shadow: 0 18px 46px rgba(15, 43, 49, 0.22);
}

* {
  box-sizing: border-box;
}

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

body.science-page {
  color: var(--science-ink);
  font-family: "Manrope", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 209, 161, 0.56), transparent 32%),
    radial-gradient(circle at 85% 14%, rgba(155, 226, 230, 0.54), transparent 34%),
    radial-gradient(circle at 20% 90%, rgba(170, 206, 242, 0.5), transparent 32%),
    linear-gradient(136deg, #edf7f5 0%, #e8f3fa 48%, #f7efe7 100%);
}

.science-atmosphere {
  position: fixed;
  inset: -90px;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 80% 26%, rgba(255, 255, 255, 0.6), transparent 29%),
    radial-gradient(circle at 19% 76%, rgba(148, 214, 231, 0.3), transparent 33%);
  filter: blur(22px);
  animation: science-drift 22s ease-in-out infinite alternate;
}

.science-shell {
  position: relative;
  z-index: 1;
  width: min(980px, calc(100% - 1.2rem));
  margin: max(1rem, env(safe-area-inset-top)) auto max(2rem, env(safe-area-inset-bottom));
}

.science-card {
  border: 1px solid var(--science-line);
  border-radius: 1.2rem;
  background:
    radial-gradient(circle at 86% 13%, rgba(255, 243, 216, 0.72), transparent 36%),
    radial-gradient(circle at 16% 88%, rgba(160, 220, 221, 0.32), transparent 35%),
    rgba(255, 255, 255, 0.68);
  box-shadow: var(--science-shadow);
  backdrop-filter: blur(10px);
  padding: clamp(0.9rem, 2.6vw, 1.45rem);
}

.science-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
}

.science-back {
  text-decoration: none;
  color: var(--science-accent);
  font-weight: 700;
  font-size: 0.92rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.science-badge {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.72rem;
  font-weight: 700;
  color: #2d6f77;
}

.science-title {
  margin: 0.35rem 0 0;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(2rem, 5vw, 3.45rem);
  font-weight: 400;
  line-height: 1.03;
  color: #174d55;
}

.science-lead {
  margin: 0.62rem 0 0;
  color: var(--science-muted);
  line-height: 1.62;
  font-size: clamp(0.95rem, 2.4vw, 1.06rem);
  max-width: 72ch;
}

.science-article {
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
}

.science-article p {
  margin: 0;
  border-left: 4px solid rgba(24, 110, 120, 0.45);
  border-radius: 0.72rem;
  background: rgba(255, 255, 255, 0.5);
  padding: 0.78rem 0.85rem;
  color: #2c5560;
  line-height: 1.6;
  font-size: 0.95rem;
}

.science-back:focus-visible {
  outline: 3px solid var(--science-accent-warm);
  outline-offset: 2px;
  border-radius: 0.35rem;
}

.science-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--science-muted);
  font-size: 0.84rem;
  padding: 0.45rem 1rem max(1rem, env(safe-area-inset-bottom));
}

.page-footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.45rem;
}

.page-footer-link {
  color: #15585f;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.84rem;
  min-height: 44px;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(21, 88, 95, 0.2);
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.93), rgba(242, 251, 250, 0.9));
  display: inline-flex;
  align-items: center;
}

.page-footer-link:hover {
  filter: brightness(1.02);
}

.page-footer-link:focus-visible {
  outline: 3px solid var(--science-accent-warm);
  outline-offset: 2px;
}

.science-footer p {
  margin: 0;
}

@keyframes science-drift {
  from {
    transform: translateX(-8px) translateY(-11px);
  }
  to {
    transform: translateX(10px) translateY(9px);
  }
}

@media (max-width: 768px) {
  .science-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .science-article {
    gap: 0.62rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .science-atmosphere {
    animation: none;
  }
}