/* Blue — light, clean */
:root,:root[data-theme="blue"],.theme-scope[data-theme="blue"]{color-scheme:light;--bg:#f6f8fc;--surface-1:#fff;--surface-2:#eef3fa;--surface-3:#e8eef7;--border:#e3e9f2;--border-strong:#c9d4e3;--text:#0b1220;--muted:#5b6b82;--primary-50:#eff6ff;--primary-100:#dbeafe;--primary-200:#bfdbfe;--primary-300:#93c5fd;--primary-400:#60a5fa;--primary-500:#2563eb;--primary-600:#1d4ed8;--primary-700:#1e40af;--primary-800:#1e3a8a;--primary-900:#172554;--primary:var(--primary-500);--primary-soft:#eff6ff;--primary-ink:#1e40af;--accent:#06b6d4;--accent-ink:#0e7490;--accent-soft:#cffafe;--on-primary:#fff;--success:#16a34a;--warning:#f59e0b;--danger:#e11d48;--info:var(--primary-500);--success-ink:#166534;--warning-ink:#854d0e;--danger-ink:#9f1239;--info-ink:#1e40af;--success-soft:#dcfce7;--warning-soft:#fef3c7;--danger-soft:#ffe4e6;--info-soft:#eff6ff;--nav-active-bg:#eff6ff;--nav-active-text:#1e40af;--hero-overlay:#0a0a0b;--hero-overlay-alpha:.78;--hero-text:#fff;--hero-muted:#e4e4e7;--hero-border:#fff;--cover-overlay:#0a0a0b;--reader-canvas:#f6f8fc;--reader-surface:#fff;--reader-text:#0b1220;--reader-muted:#5b6b82;--brand-gradient:linear-gradient(135deg,var(--primary-400),var(--primary-600));--shadow-1:0 1px 2px hsl(220 30% 20% / 7%);--shadow-2:0 8px 20px hsl(220 30% 20% / 9%);--shadow-3:0 18px 42px hsl(220 30% 20% / 13%)}
/* Red — dark, bold */
:root[data-theme="red"],.theme-scope[data-theme="red"]{color-scheme:dark;--bg:#0a0a0b;--surface-1:#131316;--surface-2:#1b1b20;--surface-3:#222228;--border:#2a2a31;--border-strong:#41414a;--text:#f5f5f7;--muted:#a1a1aa;--primary-50:#fff1f2;--primary-100:#ffe0e3;--primary-200:#ffc2c8;--primary-300:#ff8f9b;--primary-400:#fb4b5c;--primary-500:#ef2b3d;--primary-600:#d11a2c;--primary-700:#a8101f;--primary-800:#7f1222;--primary-900:#4c0a12;--primary:var(--primary-500);--primary-soft:#35151c;--primary-ink:#ffb6bf;--accent:#ff7a1a;--accent-ink:#ffb277;--accent-soft:#38210f;--on-primary:#fff;--success:#16a34a;--warning:#f59e0b;--danger:#e11d48;--info:var(--primary-500);--success-ink:#86efac;--warning-ink:#fcd34d;--danger-ink:#fda4af;--info-ink:#ffb6bf;--success-soft:#153321;--warning-soft:#35280f;--danger-soft:#3b1821;--info-soft:#35151c;--nav-active-bg:#35151c;--nav-active-text:#ffb6bf;--hero-overlay:#0a0a0b;--hero-overlay-alpha:.78;--hero-text:#fff;--hero-muted:#d4d4d8;--hero-border:#f5f5f7;--cover-overlay:#0a0a0b;--reader-canvas:#0a0a0b;--reader-surface:#131316;--reader-text:#f5f5f7;--reader-muted:#a1a1aa;--brand-gradient:linear-gradient(135deg,var(--primary-400),var(--primary-600));--shadow-1:0 1px 2px hsl(0 0% 0% / 28%);--shadow-2:0 8px 20px hsl(0 0% 0% / 32%);--shadow-3:0 18px 42px hsl(0 0% 0% / 38%)}
/* Gold — premium ivory with espresso contrast */
:root[data-theme="gold"],.theme-scope[data-theme="gold"]{color-scheme:light;--bg:#fbf8f2;--surface-1:#fff;--surface-2:#f5efe2;--surface-3:#eee5d5;--border:#ece3d0;--border-strong:#d8c9aa;--text:#1c1710;--muted:#7a6f5d;--primary-50:#fff9e6;--primary-100:#fdf0c2;--primary-200:#f9e08a;--primary-300:#f2cc55;--primary-400:#e6b422;--primary-500:#c9971c;--primary-600:#a87812;--primary-700:#7f5a0d;--primary-800:#5e4207;--primary-900:#3d2a06;--primary:var(--primary-500);--primary-soft:#fff9e6;--primary-ink:#5e4207;--accent:#2b2118;--accent-ink:#2b2118;--accent-soft:#f5efe2;--on-primary:#1c1710;--success:#16a34a;--warning:#f59e0b;--danger:#e11d48;--info:var(--primary-500);--success-ink:#166534;--warning-ink:#854d0e;--danger-ink:#9f1239;--info-ink:#5e4207;--success-soft:#dcfce7;--warning-soft:#fef3c7;--danger-soft:#ffe4e6;--info-soft:#fff9e6;--nav-active-bg:#fff9e6;--nav-active-text:#5e4207;--hero-overlay:#0a0a0b;--hero-overlay-alpha:.78;--hero-text:#fff;--hero-muted:#e4e4e7;--hero-border:#fff;--cover-overlay:#0a0a0b;--reader-canvas:#fbf8f2;--reader-surface:#fff;--reader-text:#1c1710;--reader-muted:#7a6f5d;--brand-gradient:linear-gradient(135deg,#f2cc55,#c9971c);--shadow-1:0 1px 2px hsl(35 30% 20% / 8%);--shadow-2:0 8px 20px hsl(35 30% 20% / 10%);--shadow-3:0 18px 42px hsl(35 30% 20% / 14%)}