:root{
  --bg:#f4f5f7; --surface:#ffffff; --border:#e2e5eb; --border-strong:#c9ced8;
  --text:#0f1b2d; --text-secondary:#5b6472; --text-muted:#8993a3;
  --accent:#1c4e8a; --accent-bg:#e8f0fa; --accent-border:#a9c6e8;
  --danger:#b3342a; --danger-bg:#fcebeb;
  --radius:8px; --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}

.header{display:flex;align-items:center;padding:4px 24px 6px;border-bottom:1px solid var(--border);flex-shrink:0}
.logo{height:36px;padding:0 12px;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;display:flex;align-items:center;text-decoration:none;letter-spacing:.01em;transform:translate(300px,50px)}
.header-right{margin-left:auto}
.btn-outline{font-size:12px;padding:7px 14px;border-radius:6px;border:1px solid var(--accent-border);background:var(--accent-bg);color:var(--accent);font-weight:600;display:flex;align-items:center;cursor:pointer;font-family:inherit;transform:translate(-300px,50px)}
.btn-outline:hover{background:#dcebfa}

.hero-wrap{flex:1;display:flex;align-items:flex-start;justify-content:center;padding-top:220px}
.hero{max-width:520px;margin:0 auto;padding:0 24px;text-align:center}
.hero h1{font-size:23px;font-weight:600;color:var(--text);margin:0 0 14px;line-height:1.35}
.hero p{font-size:15px;color:var(--text-secondary);line-height:1.7;margin:0}

.modal-overlay{display:none;position:fixed;inset:0;background:rgba(15,27,45,0.45);align-items:center;justify-content:center;z-index:50}
.modal-overlay.open{display:flex}
.modal-card{background:var(--surface);border-radius:12px;padding:32px 36px;width:320px;box-shadow:0 8px 24px rgba(15,27,45,0.18)}
.modal-card h2{font-size:17px;font-weight:600;margin:0 0 6px}
.modal-card .sub{font-size:12.5px;color:var(--text-muted);margin:0 0 22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12px;color:var(--text-secondary);margin-bottom:5px;font-weight:600}
.field input{width:100%;padding:9px 11px;border:0.5px solid var(--border-strong);border-radius:6px;font-size:14px;font-family:inherit}
.field input:focus{outline:none;border-color:var(--accent)}
.modal-actions{display:flex;gap:8px;margin-top:22px}
.btn-primary{flex:1;height:38px;border-radius:var(--radius);background:var(--accent);color:#fff;border:none;font-weight:600;font-size:13px;cursor:pointer;font-family:inherit}
.btn-primary:disabled{opacity:0.6;cursor:default}
.btn-cancel{height:38px;padding:0 16px;border-radius:var(--radius);background:none;border:0.5px solid var(--border-strong);color:var(--text-secondary);font-weight:600;font-size:13px;cursor:pointer;font-family:inherit}
.error-msg{display:none;font-size:12.5px;color:var(--danger);background:var(--danger-bg);padding:8px 10px;border-radius:6px;margin-top:14px}
.error-msg.show{display:block}