:root{
    --bg:#eef3f9;
    --bg-accent:#e6edf8;
    --surface:#ffffff;
    --surface-soft:#f8fbff;
    --muted:#617187;
    --text:#132033;
    --line:#d9e2ec;
    --line-strong:#c7d3e2;
    --primary:#2358d8;
    --primary-dark:#173b9f;
    --primary-soft:#eaf1ff;
    --danger:#c24135;
    --danger-soft:#fff1ef;
    --success:#158a5a;
    --success-soft:#eaf9f1;
    --warning:#b46a11;
    --warning-soft:#fff7e7;
    --dark:#0f172a;
    --shadow:0 14px 36px rgba(15, 23, 42, 0.08);
    --shadow-soft:0 8px 20px rgba(15, 23, 42, 0.05);
    --radius:18px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    font-family:"Segoe UI", Inter, Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(35,88,216,.08), transparent 24%),
        linear-gradient(180deg, var(--bg-accent), var(--bg));
    color:var(--text);
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.layout{
    min-height:100vh;
    display:grid;
    grid-template-columns:290px 1fr;
}
.sidebar{
    position:sticky;
    top:0;
    min-height:100vh;
    padding:22px 18px;
    background:linear-gradient(180deg, #0f172a, #111d38 58%, #0c162b);
    color:#fff;
    border-right:1px solid rgba(255,255,255,.06);
}
.brand-card{
    display:flex;
    align-items:center;
    gap:14px;
    padding:16px;
    border-radius:22px;
    background:linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.05));
    border:1px solid rgba(255,255,255,.08);
    box-shadow:0 10px 30px rgba(0,0,0,.16);
    margin-bottom:22px;
}
.brand-mark{
    width:64px;
    height:64px;
    border-radius:18px;
    background:linear-gradient(135deg, rgba(255,255,255,.2), rgba(255,255,255,.08));
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:hidden;
    flex-shrink:0;
    font-weight:800;
    font-size:24px;
}
.brand-logo{
    width:100%;
    height:100%;
    object-fit:contain;
    background:#fff;
}
.brand-copy h1{
    margin:0;
    font-size:22px;
    line-height:1.05;
}
.brand-copy p{
    margin:6px 0 0;
    color:#b7c6dc;
    font-size:13px;
}
.sidebar nav{
    display:flex;
    flex-direction:column;
    gap:8px;
}
.sidebar nav a{
    color:#dbe5f3;
    padding:12px 14px;
    border-radius:14px;
    display:block;
    font-weight:600;
    transition:.18s ease;
}
.sidebar nav a.active,
.sidebar nav a:hover{
    background:linear-gradient(90deg, rgba(37,99,235,.28), rgba(37,99,235,.12));
    box-shadow:inset 0 0 0 1px rgba(120,163,255,.18);
    text-decoration:none;
    transform:translateX(2px);
}
.sidebar-foot{
    margin-top:22px;
    padding:14px 16px;
    border-radius:16px;
    color:#b4c4db;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.06);
    font-size:13px;
}
.sidebar-foot p{margin:4px 0}
.content{padding:26px}
.hero{
    padding:22px 24px;
    border-radius:24px;
    background:linear-gradient(135deg, rgba(255,255,255,.92), rgba(247,250,255,.98));
    border:1px solid rgba(199,211,226,.85);
    box-shadow:var(--shadow);
    margin-bottom:20px;
}
.topbar{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:16px;
}
.topbar h2{
    margin:2px 0 8px;
    font-size:30px;
    line-height:1.1;
}
.eyebrow{
    display:inline-block;
    padding:6px 10px;
    border-radius:999px;
    background:var(--primary-soft);
    color:var(--primary-dark);
    font-size:12px;
    font-weight:800;
    letter-spacing:.02em;
    text-transform:uppercase;
}
.muted{color:var(--muted)}
.small{font-size:12px}
.top-gap{margin-top:16px}
.actions,.inline-actions{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}
.cards{
    display:grid;
    gap:16px;
    margin-bottom:16px;
}
.cards.two{grid-template-columns:repeat(2, minmax(0, 1fr))}
.cards.four{grid-template-columns:repeat(4, minmax(0, 1fr))}
.card{
    background:rgba(255,255,255,.96);
    border:1px solid rgba(199,211,226,.9);
    border-radius:var(--radius);
    box-shadow:var(--shadow-soft);
    padding:20px;
}
.preview-card{background:linear-gradient(180deg, #fff, #f8fbff)}
.stat{
    position:relative;
    overflow:hidden;
    gap:12px;
}
.stat::after{
    content:"";
    position:absolute;
    right:-24px;
    top:-24px;
    width:92px;
    height:92px;
    border-radius:28px;
    background:rgba(35,88,216,.08);
}
.stat span{
    position:relative;
    color:var(--muted);
    font-weight:600;
}
.stat strong{
    position:relative;
    font-size:34px;
    line-height:1;
}
.card-head{
    display:flex;
    justify-content:space-between;
    gap:12px;
    align-items:flex-start;
    margin-bottom:14px;
}
h3{margin:0 0 6px;font-size:19px}
.toolbar{
    display:grid;
    grid-template-columns:minmax(0,1fr) auto auto;
    gap:10px;
    margin-bottom:16px;
}
.toolbar.two-line{grid-template-columns:minmax(0,1fr) 220px auto auto}
.form-grid{
    display:grid;
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:14px;
}
.form-grid .full{grid-column:1/-1}
label{
    display:block;
    margin-bottom:6px;
    font-weight:700;
    font-size:14px;
}
input,select,textarea,button{font:inherit}
input,select,textarea{
    width:100%;
    border:1px solid var(--line-strong);
    border-radius:12px;
    padding:11px 13px;
    background:#fff;
    color:var(--text);
    transition:border-color .18s ease, box-shadow .18s ease, transform .08s ease;
}
input:focus,select:focus,textarea:focus{
    outline:none;
    border-color:#7ea0f4;
    box-shadow:0 0 0 4px rgba(35,88,216,.08);
}
textarea{min-height:110px;resize:vertical}
.btn{
    border:1px solid var(--line-strong);
    background:#fff;
    color:var(--text);
    border-radius:12px;
    padding:11px 15px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    cursor:pointer;
    text-decoration:none;
    font-weight:700;
    transition:.18s ease;
}
.btn:hover{
    text-decoration:none;
    transform:translateY(-1px);
    background:#fbfdff;
    box-shadow:0 10px 18px rgba(15,23,42,.06);
}
.btn-primary{
    background:linear-gradient(135deg, var(--primary), var(--primary-dark));
    color:#fff;
    border-color:transparent;
}
.btn-primary:hover{background:linear-gradient(135deg, #1f4fc6, #15338d)}
.wide{width:100%}
table{
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    font-size:14px;
    overflow:hidden;
}
thead th{
    font-size:12px;
    letter-spacing:.02em;
    text-transform:uppercase;
    color:var(--muted);
    background:var(--surface-soft);
    border-bottom:1px solid var(--line);
}
th,td{
    padding:12px 12px;
    text-align:left;
    vertical-align:top;
    border-bottom:1px solid var(--line);
}
tbody tr:hover td{background:#fbfdff}
.badge{
    display:inline-flex;
    align-items:center;
    border-radius:999px;
    padding:7px 11px;
    font-size:12px;
    font-weight:800;
    letter-spacing:.01em;
    border:1px solid transparent;
}
.status-neutral{background:#edf2f7;color:#41556e;border-color:#d7e2ee}
.status-info{background:var(--primary-soft);color:var(--primary-dark);border-color:#c9dafd}
.status-warning{background:var(--warning-soft);color:var(--warning);border-color:#f0ddb0}
.status-danger{background:var(--danger-soft);color:var(--danger);border-color:#f2c9c2}
.status-success{background:var(--success-soft);color:var(--success);border-color:#c2e7d2}
.status-dark{background:#e7edf8;color:#24344f;border-color:#cad6ea}
.detail-grid{
    display:grid;
    grid-template-columns:180px 1fr;
    gap:10px 14px;
    margin:0;
}
.detail-grid dt{
    font-weight:800;
    color:var(--muted);
}
.detail-grid dd{margin:0;word-break:break-word}
.detail-grid.compact{grid-template-columns:150px 1fr}
.flash-stack{margin-bottom:16px}
.flash{
    border-radius:14px;
    padding:13px 15px;
    margin-bottom:10px;
    font-weight:700;
    box-shadow:var(--shadow-soft);
}
.flash.success{background:var(--success-soft);color:var(--success);border:1px solid #c7e8d5}
.flash.error{background:var(--danger-soft);color:var(--danger);border:1px solid #efcbc5}
hr{border:none;border-top:1px solid var(--line);margin:20px 0}
.stack-form{display:grid;gap:10px}
.timeline{display:grid;gap:12px}
.timeline-item{
    border-left:4px solid var(--primary);
    padding:12px 0 12px 14px;
    background:linear-gradient(180deg, #fcfdff, #f8fbff);
    border-radius:0 14px 14px 0;
}
.timeline-item strong,.timeline-item span{display:block}
.timeline-item span{color:var(--muted);font-size:13px;margin-top:4px}
.timeline-item p{margin:8px 0 0}
.mini-actions .action-grid{display:grid;gap:10px}
.plain-list{margin:0;padding-left:18px;display:grid;gap:10px}
.check-inline{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-weight:700;
    color:var(--muted);
}
.check-inline input{width:auto}
.logo-preview-box{
    min-height:220px;
    display:flex;
    align-items:center;
    justify-content:center;
    border:1px dashed var(--line-strong);
    border-radius:18px;
    background:linear-gradient(180deg, #ffffff, #f8fbff);
    padding:18px;
}
.logo-preview-image{
    max-width:100%;
    max-height:180px;
    object-fit:contain;
}
.logo-preview-placeholder{
    width:100%;
    min-height:170px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:14px;
    color:var(--muted);
    background:repeating-linear-gradient(45deg, #f8fbff, #f8fbff 14px, #f2f6fc 14px, #f2f6fc 28px);
    font-weight:800;
}
@media (max-width: 1120px){
    .layout{grid-template-columns:1fr}
    .sidebar{position:relative;min-height:auto}
    .cards.four{grid-template-columns:repeat(2, minmax(0,1fr))}
}
@media (max-width: 820px){
    .content{padding:18px}
    .topbar,.card-head{flex-direction:column;align-items:stretch}
    .cards.two,.cards.four,.form-grid,.toolbar,.toolbar.two-line{grid-template-columns:1fr}
    .detail-grid,.detail-grid.compact{grid-template-columns:1fr}
}

.btn-danger{
    background:linear-gradient(135deg, #fff, #fff5f4);
    color:var(--danger);
    border-color:#f0c9c4;
}
.btn-danger:hover{background:#fff5f4}
.header-right{
    display:flex;
    flex-direction:column;
    align-items:flex-end;
    gap:12px;
}
.user-panel{
    min-width:180px;
    padding:10px 14px;
    border-radius:14px;
    background:rgba(255,255,255,.9);
    border:1px solid rgba(199,211,226,.9);
    box-shadow:var(--shadow-soft);
    text-align:right;
}
.user-panel strong{display:block}
.user-panel span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
    display:inline-flex;
    align-items:center;
    padding:7px 11px;
    border-radius:999px;
    font-size:12px;
    font-weight:700;
    border:1px solid var(--line);
    background:#fff;
}
.chip-blue{background:var(--primary-soft);border-color:#c9dafd;color:var(--primary-dark)}
.muted-light{color:#b7c6dc}
.accent-primary{background:linear-gradient(180deg,#fff,#f2f6ff)}
.accent-success{background:linear-gradient(180deg,#fff,#f1fcf7)}
.accent-warning{background:linear-gradient(180deg,#fff,#fff9ef)}
.accent-dark{background:linear-gradient(180deg,#fff,#f2f5fb)}
.network-list{display:grid;gap:10px}
.network-item{
    display:flex;
    align-items:center;
    gap:10px;
    padding:12px 14px;
    border-radius:14px;
    border:1px solid var(--line);
    background:#fff;
}
.network-item code{
    font-family:Consolas, monospace;
    color:#15338d;
    background:#eef4ff;
    padding:6px 9px;
    border-radius:10px;
}
.info-banner{
    padding:12px 14px;
    border-radius:14px;
    background:#f8fbff;
    border:1px solid var(--line);
    color:var(--text);
}
.compact-list{gap:8px}
.summary-grid dd{font-weight:800}
.login-body{
    min-height:100vh;
    margin:0;
    display:grid;
    place-items:center;
    background:
        radial-gradient(circle at top left, rgba(35,88,216,.12), transparent 24%),
        linear-gradient(180deg, #e8eef9, #f4f7fc);
}
.login-shell{width:min(100%, 980px);padding:24px}
.login-card{
    width:min(100%, 540px);
    margin:0 auto;
    background:rgba(255,255,255,.96);
    border:1px solid rgba(199,211,226,.9);
    border-radius:26px;
    box-shadow:0 20px 60px rgba(15,23,42,.12);
    padding:28px;
}
.login-brand{display:flex;gap:16px;align-items:center}
.login-mark{
    width:78px;
    height:78px;
    border-radius:22px;
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:hidden;
    background:linear-gradient(135deg, #0f172a, #173b9f);
    color:#fff;
    font-size:30px;
    font-weight:800;
}
.login-brand h1{margin:8px 0 4px;font-size:30px}
.single-column{grid-template-columns:1fr}
code{
    font-family:Consolas, monospace;
    font-size:13px;
}
@media (max-width: 820px){
    .header-right{align-items:stretch}
    .user-panel{text-align:left}
    .network-item{flex-direction:column;align-items:flex-start}
    .login-brand{flex-direction:column;align-items:flex-start}
}


/* ===== Responsive upgrade ===== */
.nav-toggle,
.mobile-bar,
.nav-overlay,
.sidebar-top-mobile{display:none}
.sidebar-inner{display:flex;flex-direction:column;min-height:100%}
.table-wrap{width:100%;overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff;-webkit-overflow-scrolling:touch}
.table-wrap table{min-width:700px;margin:0}
.form-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.page-section{display:grid;gap:16px}
.sticky-actions{position:sticky;bottom:10px;z-index:5}
input,select,textarea{min-height:46px}
select[multiple]{min-height:120px}
textarea{min-height:120px}
.card form .btn{min-height:44px}
.card h3 + .table-wrap,.card .table-wrap + h3{margin-top:12px}
.table-wrap + hr{margin-top:18px}
@media (max-width: 1120px){
    body{background:linear-gradient(180deg, #eef3f9, #f7f9fc)}
    .mobile-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:0;z-index:30;padding:12px 16px;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(199,211,226,.9);box-shadow:0 10px 20px rgba(15,23,42,.05)}
    .mobile-brand{display:flex;align-items:center;gap:10px;min-width:0}
    .mobile-brand strong{display:block;font-size:14px;line-height:1.1}
    .mobile-brand span{display:block;color:var(--muted);font-size:11px}
    .mobile-brand-mark{width:44px;height:44px;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg, #0f172a, #173b9f);color:#fff;font-weight:800;flex-shrink:0}
    .mobile-menu-btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:12px;border:1px solid var(--line-strong);background:#fff;font-weight:800;box-shadow:var(--shadow-soft);cursor:pointer}
    .sidebar{position:fixed;left:0;top:0;bottom:0;width:min(86vw, 360px);z-index:40;min-height:100vh;transform:translateX(-105%);transition:transform .22s ease;box-shadow:0 22px 60px rgba(15,23,42,.22)}
    .sidebar-top-mobile{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;padding:0 2px;color:#dbe5f3;font-weight:700}
    .sidebar-close{cursor:pointer;font-size:18px;padding:6px 10px;border-radius:10px;background:rgba(255,255,255,.08)}
    .nav-overlay{display:block;position:fixed;inset:0;background:rgba(15,23,42,.45);opacity:0;pointer-events:none;z-index:35;transition:opacity .18s ease}
    .nav-toggle:checked ~ .mobile-shell .sidebar{transform:translateX(0)}
    .nav-toggle:checked ~ .mobile-shell .nav-overlay{opacity:1;pointer-events:auto}
    .content{padding:18px}
    .hero{padding:18px}
    .topbar h2{font-size:26px}
    .table-wrap table{min-width:620px}
}
@media (max-width: 820px){
    .content{padding:14px}
    .hero{padding:16px;border-radius:18px}
    .topbar h2{font-size:24px}
    .actions,.inline-actions,.form-actions{display:grid;grid-template-columns:1fr;gap:10px}
    .actions .btn,.inline-actions .btn,.form-actions .btn{width:100%}
    .chip-row{gap:6px}
    .chip{max-width:100%;overflow:hidden;text-overflow:ellipsis}
    .toolbar,.toolbar.two-line{display:grid;grid-template-columns:1fr;gap:10px}
    .cards.two,.cards.four,.form-grid{grid-template-columns:1fr}
    .card{padding:16px}
    .detail-grid,.detail-grid.compact{grid-template-columns:1fr;gap:6px}
    .detail-grid dt{padding-top:8px;border-top:1px solid var(--line)}
    .detail-grid dd{padding-bottom:8px}
    .table-wrap{border-radius:14px}
    .table-wrap table{min-width:560px;font-size:13px}
    th,td{padding:10px 10px}
    .user-panel{min-width:0;width:100%;text-align:left}
    .network-list,.action-grid,.mini-actions .action-grid{grid-template-columns:1fr}
    .network-item{padding:10px 12px}
    .logo-preview-box{min-height:180px}
    .sidebar nav{gap:6px}
    .sidebar nav a{padding:11px 12px}
    .flash{padding:12px 13px}
}
@media (max-width: 560px){
    .mobile-bar{padding:10px 12px}
    .content{padding:12px}
    .hero{padding:14px}
    .topbar h2{font-size:21px}
    .eyebrow{font-size:11px;padding:5px 8px}
    .stat strong{font-size:28px}
    .brand-card{padding:14px}
    .brand-mark{width:56px;height:56px;border-radius:16px}
    .login-shell{padding:14px}
    .login-card{padding:18px}
    .login-brand h1{font-size:24px}
    .table-wrap table{min-width:500px}
    .plain-list{padding-left:16px}
}