:root,[data-theme="green"]{
 --color-primary:#246753;--color-primary-hover:#1c513f;--color-background:#f5f7f2;
 --color-surface:#ffffff;--color-text:#233d35;--color-text-muted:#596e61;
 --color-border:#c7d5c9;--color-accent:#568063;--color-soft:#e7efe3;
 --color-hover:#edf3ed;--color-decoration:#d1dfc9;--color-focus:#93611e;
 --color-on-primary:#ffffff;--color-shadow:#253a2110;--color-backdrop:#172e286b;
 --color-danger:#ad3f35; color-scheme:light;
}
[data-theme="burgundy"]{
 --color-primary:#70283f;--color-primary-hover:#551d30;--color-background:#faf4f5;
 --color-surface:#fffdfd;--color-text:#422730;--color-text-muted:#765660;
 --color-border:#dec5cd;--color-accent:#95516a;--color-soft:#f2e3e8;
 --color-hover:#f8ecef;--color-decoration:#e4c7d2;--color-focus:#92495f;
 --color-on-primary:#ffffff;--color-shadow:#70283f12;--color-backdrop:#4227306b;
}
[data-theme="ice-blue"]{
 --color-primary:#286783;--color-primary-hover:#205269;--color-background:#f2f8fc;
 --color-surface:#ffffff;--color-text:#223e4c;--color-text-muted:#506d7c;
 --color-border:#bfd3df;--color-accent:#4e91b2;--color-soft:#e1f0f8;
 --color-hover:#edf6fb;--color-decoration:#bddcec;--color-focus:#286783;
 --color-on-primary:#ffffff;--color-shadow:#28678312;--color-backdrop:#223e4c6b;
}
.theme-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.theme-choice{display:flex;align-items:center;gap:10px;text-align:left;min-width:0;flex-wrap:wrap}
.theme-choice[aria-pressed="true"]{border-color:var(--color-primary);background:var(--color-soft);box-shadow:inset 0 0 0 1px var(--color-primary)}
.theme-check{margin-left:auto;color:var(--color-primary);visibility:hidden}
.theme-choice[aria-pressed="true"] .theme-check{visibility:visible}
.theme-preview{width:24px;height:24px;flex-shrink:0;border-radius:50%;background:var(--color-accent);border:5px solid var(--color-soft);box-shadow:0 0 0 1px var(--color-border)}
@media(max-width:600px){.theme-options{grid-template-columns:1fr}.theme-choice{flex-wrap:nowrap}}