.page-redoks { --page-accent: var(--gold); --page-accent-soft: var(--gold-soft); }
.redoks-hero {
  padding-block: clamp(48px, 7vw, 96px) clamp(44px, 6vw, 80px);
  border-bottom: 1px solid var(--line);
  background: radial-gradient(ellipse at 92% 0%, #37271a 0%, transparent 59%), var(--bg);
}
.redoks-hero-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); align-items: center; gap: clamp(24px, 6vw, 84px); }
.redoks-hero h1 { max-width: 14ch; margin-bottom: 20px; font-size: clamp(2.4rem, 6.1vw, 5.1rem); line-height: 1.01; letter-spacing: -.065em; }
.redoks-hero h1 em { color: var(--gold-soft); font-style: normal; }
.redoks-lead { max-width: 58ch; color: var(--muted-strong); font-size: clamp(1rem, 1.5vw, 1.15rem); }
.redoks-byline { color: var(--muted); font-size: .83rem; }
.redoks-hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; }
.redoks-hero-note { padding: clamp(20px, 3.5vw, 36px); border: 1px solid var(--line-gold); border-radius: var(--radius); background: #171411; }
.redoks-hero-note dl { display: grid; gap: 16px; margin: 0; }
.redoks-hero-note dl div { padding-left: 13px; border-left: 2px solid var(--gold); }
.redoks-hero-note dt { color: var(--text); font-weight: 760; }
.redoks-hero-note dd { margin: 3px 0 0; color: var(--muted-strong); }
.redoks-note-text { margin: 21px 0 0; padding-top: 14px; border-top: 1px solid var(--line); color: var(--gold-soft); }
.redoks-reading { max-width: 900px; }
.redoks-toc { display: flex; flex-wrap: wrap; gap: 8px; padding-block: 24px; border-bottom: 1px solid var(--line); }
.redoks-toc a { padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted-strong); font-size: .86rem; }
.redoks-toc a:hover { border-color: var(--gold); color: var(--gold-soft); }
.redoks-section { padding-block: clamp(35px, 5vw, 62px); border-bottom: 1px solid var(--line); }
.redoks-section h2 { margin-bottom: 14px; font-size: clamp(1.65rem, 3.6vw, 2.75rem); line-height: 1.13; letter-spacing: -.035em; }
.redoks-section h3 { margin-bottom: 8px; font-size: 1.04rem; }
.redoks-section p, .redoks-section li { color: var(--muted-strong); }
.redoks-section strong { color: var(--text); }
.redoks-steps, .redoks-mistakes, .redoks-oxidation { padding-left: 1.4rem; }
.redoks-steps li, .redoks-mistakes li, .redoks-oxidation li { margin-bottom: .7rem; padding-left: .32rem; }
.redoks-steps li::marker, .redoks-mistakes li::marker, .redoks-oxidation li::marker { color: var(--gold); font-weight: 700; }
.redoks-inline-eq { display: inline-block; color: var(--text); }
.redoks-callout { margin-bottom: 0; padding: 14px 17px; border-left: 3px solid var(--gold); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: var(--surface-2); }
.redoks-equations { display: grid; gap: 12px; margin-bottom: 16px; }
.redoks-equations > div, .redoks-task { min-width: 0; padding: clamp(16px, 3vw, 24px); border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.redoks-equations > div p:last-child, .redoks-answer > :last-child { margin-bottom: 0; }
.redoks-section .redoks-eq { color: var(--text); font-weight: 660; line-height: 1.65; overflow-wrap: anywhere; }
.redoks-section .redoks-result { padding: 12px 15px; border: 1px solid var(--line-gold); border-radius: var(--radius-sm); background: #1f1910; color: var(--gold-soft); }
.redoks-task-list { display: grid; gap: 14px; }
.redoks-task summary { padding: 7px 3px; color: var(--gold-soft); cursor: pointer; font-weight: 680; }
.redoks-task summary:hover { color: var(--text); }
.redoks-task summary:focus-visible, .redoks-toc a:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.redoks-answer { margin-top: 10px; padding-top: 13px; border-top: 1px solid var(--line); }
.redoks-sources { margin: 25px 0 0; font-size: .87rem; }
@media (max-width: 760px) {
  .redoks-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .redoks-hero h1 { max-width: 18ch; }
}