:root{
  --brand:#051D40;
  --brand-dark:#031226;
  --brand-soft:#eef3f9;
  --brand-border:#d7e0ec;
  --text:#1f2933;
  --muted:#64748b;
  --bg:#f3f6fa;
  --surface:#ffffff;
  --danger:#a33;
  --success-bg:#e9f8ef;
  --success-border:#8cc89d;
  --error-bg:#fff0f0;
  --error-border:#d98a8a;
}

*{box-sizing:border-box}

body{
  font-family:Arial,Helvetica,sans-serif;
  margin:0;
  background:
    linear-gradient(180deg,var(--brand) 0, var(--brand) 190px, var(--bg) 190px, var(--bg) 100%);
  color:var(--text);
  line-height:1.45;
  background-repeat: no-repeat;
  background-size: 100% 300px;
  background-color: var(--bg);
}

.container{
  max-width:1100px;
  margin:34px auto;
  background:var(--surface);
  padding:28px;
  border-radius:14px;
  box-shadow:0 12px 32px rgba(5,29,64,.18);
  border:1px solid rgba(5,29,64,.08);
}

.portal-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  margin:-6px 0 26px;
  padding-bottom:20px;
  border-bottom:1px solid var(--brand-border);
}

.portal-brand{
  display:flex;
  align-items:center;
  gap:16px;
}

.portal-logo{
  width:78px;
  height:78px;
  object-fit:contain;
  background:#fff;
  border-radius:999px;
  border:1px solid var(--brand-border);
  padding:4px;
}

.portal-title h1{
  margin:0;
  color:var(--brand);
  font-size:28px;
  letter-spacing:-.02em;
}

.portal-title .subtitle{
  margin-top:3px;
  color:var(--muted);
  font-size:14px;
}

h1,h2,h3{margin-top:0;color:var(--brand)}
h2{margin-top:28px;border-bottom:1px solid var(--brand-border);padding-bottom:8px}
h3{font-size:18px;margin-bottom:8px}

.nav{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.nav a,.button,button{
  background:var(--brand);
  color:#fff;
  text-decoration:none;
  border:0;
  border-radius:8px;
  padding:10px 15px;
  cursor:pointer;
  font-size:14px;
  font-weight:700;
}
.nav a:hover,.button:hover,button:hover{background:var(--brand-dark)}
.button.secondary{background:#667085}
.button.danger{background:var(--danger)}

input,textarea,select{
  width:100%;
  padding:10px 11px;
  border:1px solid #cfd8e3;
  border-radius:8px;
  margin-top:5px;
  background:#fff;
  color:var(--text);
}
input:focus,textarea:focus,select:focus{
  outline:2px solid rgba(5,29,64,.18);
  border-color:var(--brand);
}
textarea{min-height:110px;resize:vertical}
label{font-weight:700;display:block;margin:14px 0}
.help{font-weight:400;color:var(--muted);font-size:13px;margin-top:3px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{
  border:1px solid var(--brand-border);
  border-radius:12px;
  padding:16px;
  margin:14px 0;
  background:#fbfdff;
}
.supplier-summary{
  background:var(--brand-soft);
  border-left:5px solid var(--brand);
}

table{width:100%;border-collapse:collapse;margin:15px 0;background:#fff}
th,td{border-bottom:1px solid var(--brand-border);text-align:left;padding:9px;vertical-align:top}
th{background:var(--brand-soft);color:var(--brand)}

.error{background:var(--error-bg);border:1px solid var(--error-border);padding:12px;border-radius:8px;margin:10px 0}
.ok{background:var(--success-bg);border:1px solid var(--success-border);padding:12px;border-radius:8px;margin:10px 0}
.muted{color:var(--muted)}
.small{font-size:13px}
.required{color:#b42318}
.inline{display:inline-block;width:auto}
.login{max-width:420px}
.badge{display:inline-block;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:3px 9px;font-size:12px;font-weight:700}
.topline{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

@media (max-width:640px){
  body{background:var(--bg)}
  .container{margin:0;min-height:100vh;border-radius:0;padding:20px;box-shadow:none}
  .portal-header{align-items:flex-start;flex-direction:column;gap:12px}
  .portal-logo{width:64px;height:64px}
  .portal-title h1{font-size:24px}
}