:root{--bg:#0b0c0e;--panel:#131416;--muted:#a5adba;--text:#eef2f6;--border:#23262a;--brand:#5b9cff;--brand-2:#7cc1ff;--radius:14px;--shadow:0 10px 30px rgba(0,0,0,.45)}*{box-sizing:border-box}html,body{height:100%}body{background:radial-gradient(1200px 600px at 70% -10%,rgba(91,156,255,.12),transparent),radial-gradient(1000px 500px at 0% 0%,rgba(124,193,255,.08),transparent),var(--bg);color:var(--text);margin:0;font:14px/1.5 ui-sans-serif,-apple-system,Segoe UI,Roboto,Noto Sans,Apple SD Gothic Neo,Malgun Gothic,Arial}.container{max-width:980px;margin:0 auto;padding:28px 20px 60px}.nav{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.brand{letter-spacing:.3px;align-items:center;gap:10px;font-weight:700;display:flex}.brand-dot{background:linear-gradient(135deg,var(--brand),var(--brand-2));border-radius:50%;width:10px;height:10px;box-shadow:0 0 20px rgba(91,156,255,.7)}.subtle{color:var(--muted)}.panel{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:linear-gradient(rgba(255,255,255,.02),rgba(255,255,255,.01))}.card{padding:16px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);color:var(--text);cursor:pointer;background:#0f1216;border-radius:12px;padding:10px 16px;transition:transform 40ms,border-color .2s,box-shadow .2s,background .2s}.btn:hover{background:#12161c;border-color:#2f3237}.btn:active{transform:translateY(1px)}.btn[disabled]{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(180deg,var(--brand),var(--brand-2));color:#0b0c0e;border:none;box-shadow:0 8px 24px rgba(91,156,255,.35)}.btn-primary:hover{filter:brightness(1.03)}.btn-primary:active{transform:translateY(1px)}.input-row{align-items:center;gap:10px;display:flex}.hr{background:var(--border);border:0;height:1px}.badge{border:1px solid var(--border);color:var(--muted);background:#0f1216;border-radius:999px;align-items:center;gap:6px;padding:6px 10px;font-size:12px;display:inline-flex}.list{color:var(--muted);margin:10px 0 0;padding-left:18px}.list li{margin:4px 0}.tabs{border-bottom:1px solid var(--border);gap:8px;padding:6px;display:flex}.tab{border:1px solid var(--border);color:var(--muted);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;background:#0f1216;border-radius:10px;padding:8px 12px}.tab[aria-selected=true]{color:var(--text);background:linear-gradient(rgba(91,156,255,.22),rgba(91,156,255,.12));border-color:#303643}.drop{border-radius:var(--radius);text-align:center;cursor:pointer;color:var(--muted);background:#0f1216;border:1.5px dashed #2a2e34;padding:26px;transition:border-color .2s,background .2s,color .2s}.drop.drag{color:#c6cfdb;background:#12161c;border-color:#3a3f47}.filetray{margin-top:14px}.file-row{border-radius:10px;align-items:center;gap:10px;padding:8px 10px;display:flex}.file-row:hover{background:#0f1216}.radio{accent-color:var(--brand)}.tag{color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 6px;font-size:11px}.small{color:var(--muted);font-size:12px}