:root{--spacing:14px;--border:#e6eaf0;--primary:#4f46e5;--bg:#f5f7fb;--surface:#fff;--text:#0f172a;--muted:#6b7280;--shadow:0 12px 28px rgba(15,23,42,0.08);}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
.container{max-width:1120px;margin:22px auto;padding:0 16px}
.panel{background:var(--surface);border-radius:24px;box-shadow:var(--shadow);overflow:visible}
.header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid #eef2f7;gap:12px}
.brand{display:flex;align-items:center;gap:12px}
.brand h1{font-size:20px;font-weight:900;letter-spacing:-0.2px;margin:0}
.brand small{display:block;margin-top:2px;color:#64748b;font-weight:700;font-size:12px}
.logo{width:44px;height:44px;border-radius:14px;background:radial-gradient(circle at 30% 30%, #a855f7 0%, #6366f1 45%, #4f46e5 100%);box-shadow:0 10px 18px rgba(79,70,229,.25);position:relative;overflow:hidden;flex-shrink:0;}
.logo:after{content:"";position:absolute;inset:-6px;border-radius:18px;border:2px solid rgba(255,255,255,.35)}
.logo svg{position:absolute;inset:0;margin:auto;width:22px;height:22px;color:#fff;opacity:.95}
.secure-badge{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:999px;border:1px solid #bbf7d0;background:linear-gradient(180deg,#ecfdf5,#f0fdf4);color:#065f46;font-size:12px;font-weight:900;white-space:nowrap;}
.secure-badge svg{width:20px;height:20px}
.alert{margin:16px 22px 0;padding:14px 16px;border-radius:12px;font-size:14px}
.alert.success{border:1px solid #bbf7d0;background:#dcfce7;color:#14532d}
.alert.error{border:1px solid #fecaca;background:#fee2e2;color:#7f1d1d}
.alert.warning{border:1px dashed #f59e0b;background:#fffbeb;color:#92400e}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:22px;align-items:start}
@media (max-width:980px){.grid{grid-template-columns:1fr}}
.card{background:#fbfdff;border:1px solid var(--border);border-radius:18px}
.card h2{font-size:16px;font-weight:900;padding:14px 16px;border-bottom:1px solid var(--border);margin:0}
.card-body{padding:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing)}
@media (max-width:560px){.form-row{grid-template-columns:1fr}}
.form-group{margin-bottom:var(--spacing)}
label{display:block;font-size:13px;color:#334155;margin-bottom:6px;font-weight:800}
.required{color:#e74c3c}
input,select{
  width:100%;padding:12px 14px;border:1.5px solid var(--border);
  border-radius:12px;background:#fff;font-size:15px;
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif !important;
  font-variant-numeric:tabular-nums;transition:all .2s;
}
input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,0.12)}
input:disabled,select:disabled{background:#f8fafc;color:#64748b;cursor:not-allowed}
input,input:focus,input:active,textarea,select{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif !important;
  font-weight:600 !important;
  font-feature-settings:"tnum" 1 !important;
}
input::placeholder{font-weight:600}
.btn-primary{width:100%;padding:16px;border:none;border-radius:14px;background:var(--primary);color:#fff;font-size:16px;font-weight:950;letter-spacing:.3px;cursor:pointer;transition:all .2s;text-transform:uppercase;}
.btn-primary:hover{background:#4338ca;transform:translateY(-1px);box-shadow:0 10px 22px rgba(79,70,229,.28)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}
.note{margin-top:10px;color:var(--muted);font-size:12px;text-align:center;line-height:1.5;font-weight:700}
.sticky-payment{position:sticky;top:18px;align-self:start}
@media (max-width:980px){.sticky-payment{position:static;top:auto}}
.trust-badges{display:flex;justify-content:center;gap:10px;margin-top:12px;flex-wrap:wrap}
.trust-badge{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid #e2e8f0;border-radius:999px;background:#f8fafc;font-size:12px;color:#334155;font-weight:900;}
.trust-badge svg{width:14px;height:14px}
.trust-section{padding:0 22px 22px}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media (max-width:980px){.trust-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.trust-grid{grid-template-columns:1fr}}
.trust-item{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:16px;padding:12px;}
.trust-icon{width:18px;height:18px;color:#0f766e;flex-shrink:0;margin-top:2px}
.trust-item h4{font-size:13px;font-weight:950;margin:0 0 4px 0}
.trust-item p{font-size:12px;color:#475569;margin:0;line-height:1.35;font-weight:700}