*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0b1220;
  --panel:#121826;
  --panel-2:#0e1522;
  --text:#d1d5db;
  --muted:#8fa1b3;
  --line:#1f2937;
  --accent:#3b82f6;
  --accent-2:#60a5fa;
  --green:#22c55e;
  --warn:#f59e0b;
  --red:#ef4444;
  --shadow:0 8px 24px rgba(0,0,0,.35), inset 0 0 0 1px rgba(255,255,255,.02)
}
html,body{height:100%}
body.dark{
  background:var(--bg);
  color:var(--text);
  font:500 16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol"
}
html,body{width:100%;max-width:100%;overflow-x:hidden}
.app, .main, .dashboard-grid, .stats-grid, .bottom-grid, .mini-grid, .chart, .card{max-width:100%}
.app{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{
  background:var(--panel);
  border-right:1px solid var(--line);
  padding:20px 12px;
  position:sticky;top:0;height:100vh
}
.sidebar{min-width:0}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:10px;color:#cbd5e1}
.sidebar-brand{text-decoration:none}
.sidebar-close{display:none}
.sidebar-nav{display:flex;flex-direction:column;margin-top:18px;gap:6px}
.nav-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:10px;color:#cbd5e1;text-decoration:none;opacity:.9}
.nav-item:hover{background:var(--panel-2);opacity:1}
.nav-item.active{background:linear-gradient(90deg,rgba(59,130,246,.12),transparent);border-left:3px solid var(--accent);padding-left:9px}
.main{display:flex;flex-direction:column}
.main{min-width:0}
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 24px;border-bottom:1px solid var(--line);background:rgba(10,16,24,.6);backdrop-filter:saturate(120%) blur(8px);position:sticky;top:0;z-index:20
}
.hamburger{display:none;background:var(--panel-2);border:1px solid var(--line);color:#cbd5e1;border-radius:10px;width:36px;height:36px;align-items:center;justify-content:center}
.topbar-left h1{font-size:20px;margin-bottom:6px;color:#e5e7eb}
.topnav{display:flex;gap:18px}
.topnav{flex-wrap:wrap}
.topnav a{color:#9aa6b2;text-decoration:none;padding:6px 8px;border-radius:8px;white-space:nowrap}
.topnav a.active{color:#e5e7eb;background:var(--panel-2)}
.topbar-right{display:flex;align-items:center;gap:14px}
.icon-btn{position:relative;display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--panel-2);color:#cbd5e1;border:1px solid var(--line)}
.icon-btn .badge{position:absolute;top:-4px;right:-4px;background:var(--accent);color:#fff;font-size:12px;border-radius:999px;padding:2px 6px;border:2px solid var(--panel-2)}
.profile{display:flex;align-items:center;gap:10px;position:relative}
.avatar{width:32px;height:32px;border-radius:999px;background:linear-gradient(135deg,#1d4ed8,#3b82f6);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700}
.avatar.small{width:28px;height:28px;font-size:11px}
.profile-btn{background:var(--panel-2);border:1px solid var(--line);color:#e5e7eb;padding:8px 12px;border-radius:10px}
.profile .dropdown{position:absolute;top:42px;right:0;min-width:160px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);display:none}
.profile.open .dropdown{display:block}
.profile .dropdown a{display:block;color:#cbd5e1;text-decoration:none;padding:10px 12px}
.profile .dropdown a:hover{background:var(--panel-2)}

/* Notifications Dropdown */
.notifications-wrapper {
  position: relative;
}
.notification-dropdown {
  position: absolute;
  top: 48px;
  right: -50px;
  width: 320px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  display: none;
  z-index: 100;
  overflow: hidden;
}
.notifications-wrapper.open .notification-dropdown {
  display: block;
}
.dropdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.dropdown-header .title {
  font-weight: 600;
  color: var(--text);
  font-size: 14px;
}
.dropdown-header .mark-read {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
  padding: 0;
}
.dropdown-header .mark-read:hover {
  text-decoration: underline;
}
.dropdown-list {
  max-height: 300px;
  overflow-y: auto;
}
.notif-item {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s;
}
.notif-item:last-child {
  border-bottom: none;
}
.notif-item:hover {
  background: var(--panel-2);
}
.notif-item.unread {
  background: rgba(59,130,246,0.05);
}
.notif-item.unread:hover {
  background: rgba(59,130,246,0.1);
}
.notif-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.notif-content {
  flex: 1;
}
.notif-title {
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 2px;
}
.notif-time {
  color: var(--muted);
  font-size: 11px;
}
.dropdown-footer {
  padding: 10px;
  text-align: center;
  border-top: 1px solid var(--line);
  background: var(--panel-2);
}
.dropdown-footer a {
  color: var(--accent);
  font-size: 13px;
  text-decoration: none;
  font-weight: 500;
}
.dropdown-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .notification-dropdown {
    right: -60px;
    width: 280px;
  }
}

.content{padding:24px}
.dashboard-grid{display:grid;grid-template-columns:1fr 340px;gap:24px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.stat{padding:16px}
.stat-header{display:flex;align-items:center;gap:10px;color:#9aa6b2;margin-bottom:8px}
.icon{display:grid;place-items:center;width:26px;height:26px;border-radius:8px;color:#cfe0ff}
.icon.blue{background:rgba(59,130,246,.18)}
.icon.green{background:rgba(34,197,94,.18);color:#c6f7d0}
.icon.cyan{background:rgba(59,196,212,.18)}
.icon.indigo{background:rgba(99,102,241,.18)}
.stat-value{font-size:22px;color:#e5e7eb}
.chart-card{padding:16px}
.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.card-header .title{font-weight:600;color:#e5e7eb}
.card-header .subtitle{color:#9aa6b2;font-size:13px}
.chart{background:var(--panel-2);border-radius:12px;border:1px solid var(--line);padding:8px;overflow:hidden}
.chart canvas{width:100%;max-width:100%;display:block;height:240px}
.chart-footer{display:flex;justify-content:space-between;color:#9aa6b2;font-size:12px;margin-top:8px}
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0}
.mini{padding:18px}
.mini-title{color:#9aa6b2;margin-bottom:6px}
.mini-value{font-size:22px;color:#e5e7eb}
.mini-value.time{color:#7dd3fc}
.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.list{list-style:none;color:#cbd5e1}
.list li{padding:10px 12px;border-radius:10px}
.countries{padding:16px}
.activity{padding:16px}
.dot{display:inline-block;width:8px;height:8px;border-radius:999px;margin-right:8px;background:#64748b}
.dot.blue{background:#3b82f6}
.dot.green{background:#22c55e}
.dot.indigo{background:#6366f1}
.col-right{display:flex;flex-direction:column;gap:16px}
.user-panel{padding:12px}
.users{list-style:none}
.user{display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:10px;padding:10px;border-radius:10px}
.user:hover{background:var(--panel-2)}
.meta .name{color:#e5e7eb;font-weight:600}
.meta .role{color:#9aa6b2;font-size:12px}
.meta .email{color:#768799;font-size:12px}
.status{font-size:12px;font-weight:700}
.status.ok{color:var(--green)}
.status.warn{color:var(--warn)}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border:none;padding:10px 14px;border-radius:10px;text-decoration:none;cursor:pointer}
.btn:hover{background:#2563eb}
.btn.small{padding:8px 12px;font-size:13px}
.btn.block{width:100%;margin-top:6px;background:var(--panel-2);color:#cbd5e1;border:1px solid var(--line)}
.btn.block:hover{background:#1a2233}
@media (max-width:1200px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .dashboard-grid{grid-template-columns:1fr}
  .col-right{order:-1}
  .chart canvas{height:220px}
}
@media (max-width:700px){
  .bottom-grid{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr}
  .hamburger{display:inline-flex;margin-right:10px}
  .app{grid-template-columns:1fr}
  .chart canvas{height:190px}
  .stats-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .content{padding:16px}
  .chart canvas{height:170px}
}
svg,img,video,canvas{max-width:100%;height:auto}
.table-wrapper{width:100%;overflow-x:auto;border-radius:12px;border:1px solid var(--line);background:var(--panel-2)}
table{width:100%;border-collapse:collapse;white-space:nowrap}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);color:#cbd5e1}
th{background:var(--panel);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:0.5px}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,0.02)}

.toast-container{position:fixed;bottom:16px;right:16px;display:grid;gap:10px;z-index:1000;pointer-events:none}
.toast{pointer-events:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:12px 14px;color:#cbd5e1;display:flex;gap:10px;align-items:flex-start;opacity:0;transform:translateY(8px);transition:opacity .18s ease,transform .18s ease}
.toast.show{opacity:1;transform:translateY(0)}
.toast .title{font-weight:600;color:#e5e7eb;font-size:13px;margin-bottom:2px}
.toast .message{font-size:13px;color:var(--muted)}

.demo-banner{position:fixed;top:12px;left:50%;transform:translate(-50%,-6px);width:min(520px,calc(100% - 24px));background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:14px 16px;display:flex;gap:12px;align-items:flex-start;z-index:999;opacity:0;transition:opacity .2s ease,transform .2s ease}
.demo-banner.show{opacity:1;transform:translate(-50%,0)}
.demo-banner .banner-title{font-weight:700;color:#e5e7eb;font-size:14px}
.demo-banner .banner-desc{color:#9aa6b2;font-size:13px}
.demo-banner .banner-actions{margin-left:auto;display:flex;align-items:center}
.demo-banner .demo-close{background:var(--accent);color:#fff;border:none;padding:8px 12px;border-radius:10px;cursor:pointer}
.demo-banner .demo-close:hover{background:#2563eb}

@media (max-width:480px){
  .toast-container{right:12px;bottom:12px}
  .demo-banner{top:10px;width:calc(100% - 20px)}
  .notification-dropdown {
    position: fixed;
    top: 60px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: 90%;
    max-width: 320px;
  }
}

/* Mobile Header & Sidebar Overlay */
@media (max-width:768px){
  .topnav{display:none}
  .profile-btn{display:none}
  .topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
  .topbar-left{display:flex;align-items:center;gap:10px}
  .page-title{font-size:16px;font-weight:600}

  .sidebar{position:fixed;left:0;top:0;height:100vh;transform:translateX(-100%);transition:transform .25s ease;z-index:110;width:260px;max-width:85%}
  body.sidebar-open .sidebar{transform:translateX(0)}
  .sidebar-backdrop{position:fixed;inset:0;background:rgba(2,8,22,.6);backdrop-filter:blur(2px);display:none;z-index:90}
  body.sidebar-open .sidebar-backdrop{display:block}
  body.sidebar-open{overflow:hidden}

  .sidebar-close{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;background:var(--panel-2);border:1px solid var(--line);color:#cbd5e1;border-radius:10px;width:32px;height:32px}
}