:root {
  --bg:#f5f7fb;
  --panel:#ffffff;
  --text:#1f2533;
  --muted:#6b7280;
  --primary:#2563eb;
  --border:#d8deeb;
  --ok:#16a34a;
  --err:#dc2626;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:radial-gradient(600px 600px at 0% 0%,rgba(37,99,235,.12) 0%,transparent 60%),radial-gradient(700px 700px at 100% 0%,rgba(16,185,129,.1) 0%,transparent 60%),var(--bg);color:var(--text)}
.container{max-width:720px;margin:40px auto;padding:24px;border:1px solid var(--border);background:var(--panel);border-radius:12px;box-shadow:0 12px 32px rgba(15,23,42,.1)}
h1{margin:0 0 12px;font-weight:700;letter-spacing:.5px}
.desc{margin:0 0 20px;color:var(--muted)}
.form{display:grid;gap:14px}
.row{display:grid;gap:6px}
label{font-weight:600}
input,select,textarea{padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#f8fafc;color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s,background .15s}
input:focus,select:focus,textarea:focus{border-color:rgba(37,99,235,.6);box-shadow:0 0 0 3px rgba(37,99,235,.18);background:#ffffff}
.actions{display:flex;gap:10px;margin-top:4px}
button,.ghost{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;border-radius:8px;border:1px solid transparent;text-decoration:none;font-weight:600;transition:box-shadow .15s,transform .15s,filter .15s}
button{background:linear-gradient(180deg,#4f8bff,#2563eb);color:#ffffff;box-shadow:0 6px 12px rgba(37,99,235,.25)}
button:hover{filter:brightness(1.05);transform:translateY(-1px)}
.ghost{background:#ffffff;border-color:var(--border);color:var(--text)}
.ghost:hover{border-color:rgba(37,99,235,.6);box-shadow:0 4px 10px rgba(15,23,42,.08)}
.msg{margin-top:16px;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#f8fafc;color:var(--muted);min-height:20px}
.msg.ok{color:#166534;border-color:rgba(22,163,74,.5);background:rgba(187,247,208,.5)}
.msg.err{color:#b91c1c;border-color:rgba(220,38,38,.4);background:rgba(254,226,226,.7)}