:root{
  --bg:#07111f;--header:#06101d;--panel:#10243a;--panel2:#0a1929;
  --border:#2d5373;--blue:#0b4ea2;--blue2:#2a8ceb;--orange:#f56a00;
  --text:#f5f8fc;--muted:#a9bfd2;--ok:#3fd078;--danger:#ff7272;--warn:#f4be4f
}
*{box-sizing:border-box}
html{min-width:320px;background:var(--bg)}
body{margin:0;min-height:100vh;font-family:Arial,Helvetica,sans-serif;color:var(--text);
background:radial-gradient(circle at top left,rgba(42,140,235,.16),transparent 28%),var(--bg)}
a{color:inherit}
.site-header{min-height:72px;padding:10px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;background:var(--header);border-bottom:2px solid var(--orange)}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand img{width:150px;height:48px;object-fit:cover;object-position:center;border-radius:8px}
.brand-text strong{display:block;font-size:18px}.brand-text span{color:var(--muted);font-size:12px}
.site-nav{display:flex;gap:9px;flex-wrap:wrap}
.site-nav a{padding:9px 13px;text-decoration:none;background:#173651;border:1px solid var(--border);border-radius:8px}
.site-nav a:hover{background:#1d4569}.site-nav .logout{background:#8c3541;border-color:#aa4b59}
.container{width:min(1240px,calc(100% - 28px));margin:28px auto}
.panel{padding:24px;background:rgba(16,36,58,.97);border:1px solid var(--border);border-radius:16px;box-shadow:0 18px 45px rgba(0,0,0,.24)}
h1,h2{margin-top:0}.muted{color:var(--muted)}
.notice,.error{margin-bottom:18px;padding:12px 14px;border-radius:9px}
.notice{background:#225e3c;border:1px solid #3c9f67}.error{background:#672f38;border:1px solid #b5505f}
input,select{width:100%;height:46px;padding:0 12px;color:var(--text);background:var(--panel2);border:1px solid #365d7c;border-radius:9px;font-size:15px}
input:focus,select:focus{outline:none;border-color:var(--blue2);box-shadow:0 0 0 4px rgba(42,140,235,.14)}
label{display:block;margin-bottom:7px;font-weight:700}.field{margin-bottom:16px}
.btn{min-height:46px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:9px;color:#fff;text-decoration:none;font-weight:700;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--orange),#d65300)}.btn-secondary{background:#245f8d;border:1px solid #397daf}
.site-footer{padding:22px;text-align:center;color:var(--muted);border-top:1px solid var(--border);margin-top:36px}
@media(max-width:720px){.site-header{align-items:flex-start;flex-direction:column}.brand img{width:120px;height:42px}.container{width:min(100% - 18px,1240px)}}