:root{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #f0f2f5;--border: #e2e5ea;--text: #1a1d23;--muted: #6b7280;--primary: #2f6bff;--primary-text: #ffffff;--danger: #e5484d;--ok: #2fa84f;--kakao: #fee500;--kakao-text: #191600;--radius: 10px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #0f1115;--surface: #171a21;--surface-2: #1f232c;--border: #2a2f3a;--text: #e7e9ee;--muted: #9aa1ad;--primary: #4c82ff;--danger: #ff6369;--ok: #46c46a;--shadow: 0 1px 3px rgba(0, 0, 0, .4)}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Apple SD Gothic Neo,Malgun Gothic,Roboto,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3{line-height:1.25}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.page{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}.container{width:100%;max-width:920px;margin:0 auto}.muted{color:var(--muted)}.center{text-align:center}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:24px}.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;color:inherit;transition:transform .08s ease,border-color .12s ease}.card:hover{text-decoration:none;transform:translateY(-2px);border-color:var(--primary)}.card h3{margin:0 0 6px}.card p{margin:0;color:var(--muted);font-size:.92rem}.auth-box{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column;gap:12px}.auth-box h1{margin:0;font-size:1.35rem}.auth-box input{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);color:var(--text);font-size:.98rem}.auth-box input:focus{outline:2px solid var(--primary);outline-offset:-1px}.auth-err{color:var(--danger);font-size:.88rem}.auth-ok{color:var(--ok);font-size:.88rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 14px;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);color:var(--text);font-size:.98rem;font-weight:600;cursor:pointer;text-decoration:none}.btn:hover{text-decoration:none;filter:brightness(.98)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.primary{background:var(--primary);color:var(--primary-text);border-color:transparent}.btn.block{width:100%}.btn.kakao{background:var(--kakao);color:var(--kakao-text);border-color:transparent}.linklike{background:none;border:none;color:var(--primary);cursor:pointer;font:inherit;padding:0}.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.82rem;margin:4px 0}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}.stack{display:flex;flex-direction:column;gap:12px}.row{display:flex;gap:8px;align-items:center}.field-label{font-size:.85rem;color:var(--muted);margin-bottom:4px}