:root{--color-primary:#4f46e5;--color-primary-hover:#4338ca;--color-primary-soft:#eef2ff;--color-text:#0f172a;--color-text-muted:#64748b;--color-border:#e2e8f0;--color-bg:#f1f5f9;--color-white:#fff;--color-success:#16a34a;--color-success-soft:#dcfce7;--color-error:#dc2626;--radius:16px;--shadow-sm:0 1px 2px #0f172a0f;--shadow:0 12px 32px -16px #0f172a47}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6}.app-shell{flex-direction:column;min-height:100%;display:flex}.app-header{z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border);background:#ffffffd9;position:sticky;top:0}.app-header .header-inner{justify-content:space-between;align-items:center;gap:16px;max-width:720px;margin:0 auto;padding:12px 24px;display:flex}.brand{color:var(--color-text);align-items:center;gap:12px;text-decoration:none;display:flex}.brand img{width:auto;height:34px}.brand-text{flex-direction:column;line-height:1.2;display:flex}.brand-name{font-size:16px;font-weight:700}.brand-sub{color:var(--color-text-muted);font-size:12px}.app-main{flex:1;width:100%;max-width:720px;margin:0 auto;padding:40px 24px 64px}.app-footer{border-top:1px solid var(--color-border);text-align:center;color:var(--color-text-muted);background:var(--color-white);padding:20px 24px;font-size:13px}.card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}.page-title{letter-spacing:-.02em;margin:0 0 8px;font-size:28px;font-weight:800}.page-sub{color:var(--color-text-muted);margin:0 0 28px}.hero{text-align:center;padding:48px 32px}.hero .page-title{font-size:34px}.hero .page-sub{margin-bottom:24px;font-size:17px}.field{margin-bottom:20px}.field label{color:var(--color-text);margin-bottom:6px;font-size:14px;font-weight:600;display:block}.field input,.field select{border:1px solid var(--color-border);width:100%;color:var(--color-text);background:#f8fafc;border-radius:12px;padding:12px 14px;font-size:15px;transition:border-color .15s,box-shadow .15s,background .15s}.field input:focus,.field select:focus{border-color:var(--color-primary);background:var(--color-white);outline:none;box-shadow:0 0 0 4px #4f46e51f}.btn{background:var(--color-primary);color:var(--color-white);cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:15px;font-weight:600;text-decoration:none;transition:background .15s,transform 50ms,box-shadow .15s;display:inline-flex;box-shadow:0 6px 16px -8px #4f46e599}.btn:hover{background:var(--color-primary-hover)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{background:var(--color-white);color:var(--color-text);border:1px solid var(--color-border);box-shadow:none}.btn-ghost:hover{background:#f8fafc}.card-actions{gap:12px;margin-top:8px;display:flex}.link-url{border:1px solid var(--color-border);color:var(--color-primary);overflow-wrap:anywhere;word-break:break-all;background:#f8fafc;border-radius:12px;padding:14px 16px;font-size:14px;text-decoration:none;display:block}.link-url:hover{text-decoration:underline}.badge{border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-success{background:var(--color-success-soft);color:#166534}.badge-muted{background:var(--color-primary-soft);color:var(--color-primary)}.result-block{margin-top:16px}.error-text{color:var(--color-error)}.status-line{color:var(--color-text-muted);margin:0 0 20px}