:root{--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--color-powder-petal:#fde4cf;--color-cotton-rose:#ffcfd2;--color-pink-orchid:#f1c0e8;--color-periwinkle:#cfbaf0;--color-baby-blue-ice:#a3c4f3;--color-sky-blue-light:#90dbf4;--color-electric-aqua:#8eecf5;--color-soft-cyan:#98f5e1;--color-lemon-chiffon:#fde4cf;--color-celadon:#98f5e1;--color-sky-blue:#90dbf4;--color-navy:#0F5A7E;--color-navy-light:#1A7BA8;--color-navy-dark:#0A4560;--color-error:#E53935;--color-error-light:#FFEBEE;--color-success:#4CAF50;--color-success-light:#E8F5E9;--color-warning:#FB8C00;--color-warning-light:#FFF3E0;--color-correct:#00a65a;--color-correct-highlight:#01c36a;--color-incorrect:#e85252;--color-incorrect-highlight:#f56954;--color-not-visited:#d2d2d2;--color-gray-50:#FAFAFA;--color-gray-100:#F5F5F5;--color-gray-200:#EEEEEE;--color-gray-300:#E0E0E0;--color-gray-400:#BDBDBD;--color-gray-500:#9E9E9E;--color-gray-600:#757575;--color-gray-700:#616161;--color-gray-800:#424242;--color-gray-900:#212121;--color-white:#FFFFFF;--color-black:#212121;--color-gray-dark:var(--color-gray-800);--color-gray:var(--color-gray-600);--color-gray-light:var(--color-gray-400);--color-gray-lighter:var(--color-gray-300);--color-gray-lightest:var(--color-gray-50);--text-primary:var(--color-black);--text-secondary:var(--color-gray-dark);--text-muted:var(--color-gray);--text-on-dark:var(--color-white);--bg-primary:var(--color-white);--bg-secondary:var(--color-gray-lightest);--link-color:var(--color-navy);--link-hover:var(--color-navy-light);--border-color:var(--color-gray-lighter)}.theme-maths,[class*="maths-olympiad"],[class*="cmo-"]{--theme-accent:var(--color-baby-blue-ice);--theme-accent-light:#d1e2f9}.theme-science,[class*="science-olympiad"],[class*="cso-"]{--theme-accent:var(--color-celadon);--theme-accent-light:#dcfddf}.theme-english,[class*="english-olympiad"],[class*="ceo-"]{--theme-accent:var(--color-cotton-rose);--theme-accent-light:#ffe7e9}.theme-cyber,[class*="cyber-olympiad"],[class*="cco-"]{--theme-accent:var(--color-electric-aqua);--theme-accent-light:#c7f5fa}.theme-reasoning,[class*="reasoning-olympiad"],[class*="cro-"]{--theme-accent:var(--color-periwinkle);--theme-accent-light:#e7ddf8}.theme-spellbee,[class*="spellbee"]{--theme-accent:var(--color-powder-petal);--theme-accent-light:#fef1e7}.theme-drawing,[class*="drawing-olympiad"],[class*="cido-"]{--theme-accent:var(--color-pink-orchid);--theme-accent-light:#f8dff3}.theme-green,[class*="green-olympiad"],[class*="gwo-"]{--theme-accent:var(--color-soft-cyan);--theme-accent-light:#ccfaf0}.theme-mental-maths,[class*="mental-maths"],[class*="mmo-"]{--theme-accent:var(--color-sky-blue);--theme-accent-light:#c8edfa}.theme-iq,[class*="iq-challenge"],[class*="cic-"]{--theme-accent:var(--color-lemon-chiffon);--theme-accent-light:#fdfce5}.promo-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:8px 0;clear:both;width:100%}.promo-btn{display:inline-flex;align-items:center;background:var(--color-navy-dark);color:#fff;text-decoration:none;border-radius:50px;padding:0 18px 0 0;font-size:13px;font-weight:500;letter-spacing:0.2px;transition:background 0.2s;white-space:nowrap;line-height:1}.promo-btn:hover,.promo-btn:focus{background:var(--color-navy);color:#fff;text-decoration:none}.promo-btn .pb-icon{width:36px;height:36px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;margin-right:10px;flex-shrink:0}.promo-btn .pb-icon svg{width:18px;height:18px}