/* Approved dark companion. Scope is appearance only; print keeps its white document. */
@media screen {
  [data-theme="dark"] .category-header { border-bottom-color:var(--border); }
  [data-theme="dark"] .category-card { box-shadow:0 7px 22px #00000014; }
  [data-theme="dark"] .categories-header h2 { text-decoration-color:#43657e; }
  [data-theme="dark"] header .hdr-2 { fill:#e2e6e8; }
  [data-theme="dark"] header .hdr-3 { fill:#65baff; }
  [data-theme="dark"] .comparison-tier-card.selected:not(.skip),
  [data-theme="dark"] .btn-primary, [data-theme="dark"] .btn-success,
  [data-theme="dark"] .shared-banner .btn-save,
  [data-theme="dark"] .matrix-addon-toggle.is-added,
  [data-theme="dark"] .extra-item.active .extra-toggle,
  [data-theme="dark"] .primary,
  [data-theme="dark"] .question button[aria-pressed="true"] { background:var(--dark-action); color:#fff; }
  [data-theme="dark"] .btn-primary:hover, [data-theme="dark"] .btn-success:hover,
  [data-theme="dark"] .primary:hover:not(:disabled) { background:var(--dark-action-hover); }
  [data-theme="dark"] #gateBtn, [data-theme="dark"] #linkShareModal button,
  [data-theme="dark"] #summaryBody button { background:var(--dark-action) !important; color:#fff !important; }
  [data-theme="dark"] .danger { color:#ffb4ab; border-color:#d98c84; }
  [data-theme="dark"] .form-group input:disabled,
  [data-theme="dark"] .form-group select:disabled { opacity:1 !important; color:var(--text-light); -webkit-text-fill-color:var(--text-light); background:var(--surface); }
}

/* Polish pass: navy-leaning dark that echoes the website's deep sections. */
@media screen {
  :root[data-theme="dark"] {
    --gamma-page:#1b2733; --gamma-paper:#253545; --gamma-surface:#2e4152;
    --gamma-line:#3e5467; --gamma-selected:#22425b;
    --gamma-marker: rgba(116,199,255,.26); --gamma-marker-soft: rgba(116,199,255,.18);
  }
  [data-theme="dark"] header { background:var(--bg); }
  [data-theme="dark"] .category-card { box-shadow:0 1px 0 #ffffff08 inset, 0 8px 22px #0000002e; }
  [data-theme="dark"] .category-card:not(.open):hover { box-shadow:0 1px 0 #ffffff0d inset, 0 12px 28px #00000038; }
  [data-theme="dark"] .category-selection { color:#9dd5ff; }
  [data-theme="dark"] .tier-details { background:#1f2e3b; }
}

/* Dark tier colors: lighter text tones for contrast, deep tinted selected cards. */
@media screen {
  :root[data-theme="dark"] {
    --good:#86d493; --good-bg:#1f3a30; --good-border:#3f7d55; --good-strong:#2e7d32;
    --standard:#86bdff; --standard-bg:#1f3553; --standard-border:#3f6fa6; --standard-strong:#1976d2;
    --better:#7cccff; --better-bg:#18394f; --better-border:#2f84b8; --better-strong:#0474c0;
    --best:#b3d7f5; --best-bg:#1d3146; --best-border:#6d9cc4; --best-strong:#0d5287;
  }
  [data-theme="dark"] .comparison-tier-card.good.selected { background:var(--good-strong); }
  [data-theme="dark"] .comparison-tier-card.standard.selected { background:var(--standard-strong); }
  [data-theme="dark"] .comparison-tier-card.better.selected { background:var(--better-strong); }
  [data-theme="dark"] .comparison-tier-card.best.selected { background:var(--best-strong); }
}