:root{--bg:#f5f7fb;--panel:#fff;--panel-soft:#f0f3fa;--text:#172033;--muted:#65708a;--border:#dfe4ef;--primary:#3457d5;--primary-hover:#2847bd;--success:#19754e;--success-soft:#e6f5ee;--warning-soft:#fff4dd;--warning-border:#e3c079;--danger:#b73a47;--shadow:0 16px 45px rgba(30,45,80,.14);--radius:18px;--safe-bottom:env(safe-area-inset-bottom,0px)}@media(prefers-color-scheme:dark){:root{--bg:#111522;--panel:#1a2030;--panel-soft:#222a3c;--text:#f5f7ff;--muted:#aeb8cf;--border:#30394f;--primary:#7891ff;--primary-hover:#8ca2ff;--success:#63d29f;--success-soft:#17382c;--warning-soft:#3b2d17;--warning-border:#73582e;--danger:#f07b87;--shadow:0 18px 50px rgba(0,0,0,.38)}}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe 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