:root{--s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:20px;--s6:24px;--s8:32px;--s10:40px;--s12:48px;--s16:64px;--s20:80px;--s24:96px;--r-xs:4px;--r-sm:6px;--r-md:10px;--r-lg:16px;--r-xl:20px;--r-2xl:28px;--r-full:9999px;--text-xs:11px;--text-sm:13px;--text-base:15px;--text-lg:17px;--text-xl:20px;--text-2xl:24px;--text-3xl:30px;--text-4xl:36px;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.2;--line-height-normal:1.5;--line-height-loose:1.75;--primary:#0071E3;--primary-hover:#0077ED;--primary-active:#0062C9;--primary-light:rgba(0,113,227,0.12);--success:#30D158;--warning:#FF9F0A;--error:#FF453A;--info:#64D2FF;--text-primary:rgba(0,0,0,0.86);--text-secondary:rgba(0,0,0,0.62);--text-tertiary:rgba(0,0,0,0.38);--text-inverse:#FFFFFF;--surface-base:#F2F4F8;--surface-container:#FFFFFF;--surface-raised:rgba(255,255,255,0.96);--surface-overlay:rgba(255,255,255,0.98);--surface-header:rgba(255,255,255,0.80);--border-default:rgba(0,0,0,0.10);--border-strong:rgba(0,0,0,0.18);--border-focus:var(--primary);--ease-spring:cubic-bezier(0.34,1.56,0.64,1);--ease-smooth:cubic-bezier(0.25,0.46,0.45,0.94);--ease-snappy:cubic-bezier(0.4,0,0.2,1);--dur-fast:120ms;--dur-normal:220ms;--dur-slow:380ms;--z-sticky:20;--z-overlay:100;--z-modal:200;--z-toast:400;--header-height:56px;--content-max:1080px;--grade-a:#30D158;--grade-b:#0071E3;--grade-c:#FF9F0A;--grade-d:#FF453A}@media (prefers-color-scheme:dark){:root{--text-primary:rgba(255,255,255,0.92);--text-secondary:rgba(255,255,255,0.64);--text-tertiary:rgba(255,255,255,0.40);--surface-base:#0B0F14;--surface-container:#161B22;--surface-raised:rgba(30,36,44,0.96);--surface-overlay:rgba(28,33,40,0.98);--surface-header:rgba(22,27,34,0.80);--border-default:rgba(255,255,255,0.12);--border-strong:rgba(255,255,255,0.22)}}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--surface-base);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Apple SD Gothic Neo,Noto Sans KR,sans-serif;font-size:var(--text-base);line-height:var(--line-height-normal);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}button{font-family:inherit}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}h1,h2,h3,h4,p{margin:0}