:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1e222b;--border:#2a2f3a;--text:#e7e9ee;--muted:#9aa3b2;--accent:#6d7cff;--accent-hover:#5766ff;--danger:#ff6b6b;--ok:#3ecf8e;--radius:14px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Apple SD Gothic Neo,Noto Sans KR,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent)}.wrap{max-width:620px;margin:0 auto;padding:32px 20px 64px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.brand{font-weight:700;font-size:18px;letter-spacing:-.02em}.brand small{color:var(--muted);font-weight:500;margin-left:6px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.hero{text-align:center;padding:56px 24px}.hero h1{font-size:26px;margin:0 0 10px;letter-spacing:-.03em}.hero p{margin:0 0 28px}.hero p,label{color:var(--muted)}label{display:block;font-size:13px;margin-bottom:8px}input[type=text],textarea{width:100%;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;color:var(--text);padding:12px 14px;font-size:15px;resize:vertical;font-family:inherit}input:focus,textarea:focus{outline:none;border-color:var(--accent)}.counter{text-align:right;font-size:12px;color:var(--muted);margin-top:6px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:white;border:none;border-radius:10px;padding:12px 18px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-ghost:hover{background:var(--panel-2)}.btn-block{width:100%}.row{display:flex;gap:12px;align-items:center}.mt{margin-top:18px}.file-drop{border:1px dashed var(--border);border-radius:10px;padding:18px;text-align:center;color:var(--muted);cursor:pointer;background:var(--panel-2)}.preview{margin-top:14px;border-radius:10px;overflow:hidden;border:1px solid var(--border)}.preview img{width:100%;display:block}.alert{border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:16px}.alert-ok{background:rgba(62,207,142,.12);border:1px solid rgba(62,207,142,.4);color:var(--ok)}.alert-err{background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.4);color:var(--danger)}.muted{color:var(--muted);font-size:13px}.status-line{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border);font-size:14px}.status-line:last-child{border-bottom:none}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:8px}.dot-ok{background:var(--ok)}.dot-off{background:var(--muted)}