:root{--bg:#f3f5f9;--surface:#fff;--surface-soft:#f7f8fb;--text:#18202f;--muted:#697386;--line:#e4e8f0;--primary:#5b5bd6;--primary-deep:#4949bd;--primary-soft:#efefff;--success:#18855b;--success-soft:#e9f8f1;--warning:#9a6700;--warning-soft:#fff6d8;--danger:#c03945;--danger-soft:#fff0f1;--shadow:0 14px 42px #222a421a}*{box-sizing:border-box}html{background:var(--bg)}body{color:var(--text);background:var(--bg);margin:0;font-family:Arial,Noto Sans KR,sans-serif}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}.register-shell{background:linear-gradient(145deg,#eef0ff,#f7f8fb 52%,#eef6ff);place-items:center;min-height:100vh;padding:24px;display:grid}.register-phone{background:var(--surface);width:min(100%,440px);min-height:min(850px,100vh - 48px);box-shadow:var(--shadow);border-radius:36px;overflow:hidden}.register-hero{text-align:center;color:#fff;background:linear-gradient(135deg,#595bd8,#814fc5 55%,#3277d5);padding:38px 28px 70px}.register-hero-icon{background:#ffffff2e;border-radius:18px;place-items:center;width:62px;height:62px;margin:0 auto 14px;display:grid}.register-hero h1{margin:0;font-size:24px}.register-hero p{color:#ffffffd1;margin:7px 0 0;font-size:14px}.register-body{margin-top:-38px;padding:0 22px 28px;position:relative}.capture-card{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:28px;padding:12px}.capture-area{background:var(--surface-soft);cursor:pointer;text-align:center;border:1px dashed #cfd5e2;border-radius:22px;place-items:center;min-height:310px;padding:24px;display:grid;overflow:hidden}.capture-area input{display:none}.capture-prompt strong{margin-top:18px;font-size:19px;display:block}.capture-prompt 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14px;font-size:13px;line-height:1.5}.inline-alert.error{color:var(--danger);background:var(--danger-soft)}.inline-alert.success{color:var(--success);background:var(--success-soft)}.loading-row{color:var(--muted);justify-content:center;align-items:center;gap:10px;margin-top:16px;font-size:13px;display:flex}.spinner{border:2px solid #d9dcea;border-top-color:var(--primary);border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.admin-shell{grid-template-columns:238px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{color:#e9ebff;background:#25274d;height:100vh;padding:24px 16px;position:sticky;top:0}.brand{align-items:center;gap:11px;padding:6px 8px 26px;display:flex}.brand-mark{background:#ffffff1f;border-radius:12px;place-items:center;width:38px;height:38px;display:grid}.brand strong{font-size:15px;display:block}.brand 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84px}.page-head{display:block}.page-head .secondary-button{margin-top:12px}.stat-grid{grid-template-columns:repeat(2,1fr)}.assignment-row{grid-template-columns:1fr 1fr}.assignment-row form{grid-column:1/-1}.field-grid{grid-template-columns:1fr}.field.full{grid-column:auto}}