:root{
 --bg:#0f1115; --panel:#161a22; --accent:#ff2a2a;
 --text:#e5e7eb; --muted:#9ca3af;
 --success:#4CAF50; --warning:#FF9800; --info:#2196F3;
 --sidebar-bg:#0b0e14; --hover:#1e2530;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{text-decoration:none;color:inherit}
h1{margin:0 0 24px;font-size:28px;font-weight:600}
h2{margin:0 0 16px;font-size:20px;font-weight:600}
h3{margin:0 0 12px;font-size:16px;font-weight:600}

/* Layout */
.layout{display:flex;height:100vh}

/* Sidebar */
.sidebar{
 width:260px;background:var(--sidebar-bg);padding:0;
 display:flex;flex-direction:column;border-right:1px solid #1a1f2a;
 overflow-y:auto
}
.sidebar-header{
 padding:24px 20px;border-bottom:1px solid #1a1f2a;
 display:flex;align-items:center;gap:12px
}
.sidebar-header .logo{
 width:40px;height:40px;background:linear-gradient(135deg,#ff2a2a,#ff6b6b);
 border-radius:10px;display:flex;align-items:center;justify-content:center;
 font-size:20px
}
.sidebar-header h2{color:#fff;margin:0;font-size:18px;font-weight:700}
.sidebar-header span{color:var(--muted);font-size:11px;margin-top:2px;display:block}

.sidebar-section{padding:16px 12px}
.sidebar-section-title{
 font-size:11px;text-transform:uppercase;letter-spacing:.5px;
 color:var(--muted);padding:0 12px 8px;font-weight:600
}
.sidebar a{
 padding:10px 12px;border-radius:8px;color:var(--muted);
 display:flex;align-items:center;gap:12px;font-size:13px;
 transition:all .15s ease;margin-bottom:2px;position:relative
}
.sidebar a:hover{background:var(--hover);color:#fff}
.sidebar a.active{background:rgba(255,42,42,.15);color:var(--accent)}
.sidebar a .icon{font-size:16px;width:20px;text-align:center}
.sidebar a .badge{
 background:var(--accent);color:#fff;font-size:10px;font-weight:600;
 padding:2px 6px;border-radius:10px;margin-left:auto
}

.sidebar-footer{
 margin-top:auto;padding:16px;border-top:1px solid #1a1f2a
}
.sidebar-footer a{color:var(--muted);font-size:12px;opacity:.8}
.sidebar-footer a:hover{opacity:1;color:#fff}

/* Main content */
.main{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{
 height:64px;background:var(--panel);
 display:flex;align-items:center;justify-content:space-between;
 padding:0 28px;border-bottom:1px solid #1a1f2a;flex-shrink:0
}
.topbar-title{font-weight:600;font-size:15px}
.topbar-actions{display:flex;align-items:center;gap:16px}

.content{padding:28px;overflow:auto;flex:1}

/* Cards grid */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:28px}
.card{
 background:var(--panel);padding:24px;border-radius:12px;
 border:1px solid #1a1f2a;transition:all .15s ease
}
.card:hover{border-color:#2a3040}
.card h3{margin:0 0 8px;font-weight:500;color:var(--muted);font-size:13px}
.card .big{font-size:32px;font-weight:700;color:#fff}
.card .big.accent{color:var(--accent)}
.card .big.success{color:var(--success)}
.card .big.warning{color:var(--warning)}
.card .big.info{color:var(--info)}
.card .trend{font-size:12px;margin-top:8px;display:flex;align-items:center;gap:4px}
.card .trend.up{color:var(--success)}
.card .trend.down{color:var(--accent)}

/* Stat cards with icons */
.stat-card{display:flex;align-items:flex-start;gap:16px}
.stat-card .stat-icon{
 width:48px;height:48px;border-radius:10px;
 display:flex;align-items:center;justify-content:center;
 font-size:20px;flex-shrink:0
}
.stat-card .stat-icon.red{background:rgba(255,42,42,.15);color:var(--accent)}
.stat-card .stat-icon.green{background:rgba(76,175,80,.15);color:var(--success)}
.stat-card .stat-icon.blue{background:rgba(33,150,243,.15);color:var(--info)}
.stat-card .stat-icon.orange{background:rgba(255,152,0,.15);color:var(--warning)}
.stat-card .stat-info{flex:1}

/* Tables */
.table-container{background:var(--panel);border-radius:12px;border:1px solid #1a1f2a;overflow:hidden}
.table-header{padding:16px 20px;border-bottom:1px solid #1a1f2a;display:flex;align-items:center;justify-content:space-between}
.table-header h3{margin:0;font-size:15px}

.table{background:var(--panel);border-radius:12px;overflow:hidden;border:1px solid #1a1f2a}
table{width:100%;border-collapse:collapse}
th,td{padding:14px 20px;text-align:left}
th{color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.3px;background:rgba(0,0,0,.2)}
tr{border-bottom:1px solid #1a1f2a;transition:background .1s ease}
tr:last-child{border-bottom:none}
tr:hover{background:rgba(255,255,255,.02)}

/* Buttons */
.btn{
 padding:8px 16px;border-radius:6px;font-size:13px;font-weight:500;
 cursor:pointer;transition:all .15s ease;display:inline-flex;
 align-items:center;gap:6px;border:none
}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:#ff4545}
.btn.secondary{background:transparent;border:1px solid #333;color:var(--text)}
.btn.secondary:hover{background:var(--hover);border-color:#444}
.btn.success{background:var(--success);color:#fff}
.btn.small{padding:6px 12px;font-size:12px}

/* Badges */
.badge{
 display:inline-block;padding:4px 10px;border-radius:20px;
 font-size:11px;font-weight:600
}
.badge.ok,.badge.success{background:rgba(76,175,80,.15);color:var(--success)}
.badge.no,.badge.danger{background:rgba(255,42,42,.15);color:var(--accent)}
.badge.warning{background:rgba(255,152,0,.15);color:var(--warning)}
.badge.info{background:rgba(33,150,243,.15);color:var(--info)}

/* Quick actions */
.quick-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:28px}
.quick-action{
 background:var(--panel);border:1px solid #1a1f2a;border-radius:10px;
 padding:16px;display:flex;align-items:center;gap:12px;cursor:pointer;
 transition:all .15s ease
}
.quick-action:hover{border-color:var(--accent);background:rgba(255,42,42,.05)}
.quick-action .icon{font-size:24px}
.quick-action .text{font-size:13px;font-weight:500}

/* Alerts */
.alert{
 padding:16px 20px;border-radius:8px;margin-bottom:20px;
 display:flex;align-items:flex-start;gap:12px
}
.alert.success{background:rgba(76,175,80,.1);border:1px solid rgba(76,175,80,.3)}
.alert.warning{background:rgba(255,152,0,.1);border:1px solid rgba(255,152,0,.3)}
.alert.danger{background:rgba(255,42,42,.1);border:1px solid rgba(255,42,42,.3)}
.alert.info{background:rgba(33,150,243,.1);border:1px solid rgba(33,150,243,.3)}

/* Form inputs */
.input{
 width:100%;padding:12px 14px;border-radius:8px;border:1px solid #1a1f2a;
 background:#0b0e14;color:var(--text);font-size:13px;
 transition:border-color .15s ease
}
.input:focus{outline:none;border-color:var(--accent)}
.label{display:block;margin:14px 0 6px;color:var(--muted);font-size:13px;font-weight:500}
textarea.input{resize:vertical;min-height:100px}

/* Progress bars */
.progress{
 height:8px;background:#1a1f2a;border-radius:4px;overflow:hidden
}
.progress-bar{height:100%;border-radius:4px;transition:width .3s ease}
.progress-bar.accent{background:var(--accent)}
.progress-bar.success{background:var(--success)}
.progress-bar.info{background:var(--info)}

/* Responsive */
@media (max-width: 1200px){
 .sidebar{width:220px}
}
@media (max-width: 900px){
 .sidebar{display:none}
 .content{padding:20px}
}