:root{
  --blue:#1f4e79; --blue2:#2e75b6; --blue3:#5b9bd5; --blue-soft:#eaf1f8;
  --grey:#5b6573; --grey2:#8a93a0; --line:#e4e8ee; --bg:#f4f6fa;
  --card:#ffffff; --text:#1f2733; --sidebar:#15263b; --sidebar2:#1d3350;
  --ok:#2e9e5b; --warn:#e0a800; --info:#2e75b6; --danger:#d6453d; --muted:#6b7280;
  --radius:14px; --shadow:0 8px 24px rgba(31,78,121,.08); --shadow-lg:0 14px 40px rgba(31,78,121,.14);
  --sb-w:256px;
}
[data-theme="dark"]{
  --blue-soft:#1a2a3f; --line:#2a3648; --bg:#0f1722; --card:#16202e;
  --text:#e6ebf2; --grey:#aeb7c4; --grey2:#8893a2; --sidebar:#0b1421; --sidebar2:#13202f;
  --shadow:0 8px 24px rgba(0,0,0,.3); --shadow-lg:0 14px 40px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
body{margin:0;font-family:'Poppins',system-ui,Arial,sans-serif;background:var(--bg);color:var(--text);
  font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
a{color:var(--blue2);text-decoration:none}
a:hover{color:var(--blue)}

/* ---------- Layout shell ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:var(--sb-w);flex:none;background:linear-gradient(180deg,var(--sidebar),var(--sidebar2));
  color:#cdd6e3;position:fixed;inset:0 auto 0 0;height:100vh;overflow-y:auto;z-index:60;
  transition:transform .28s ease;display:flex;flex-direction:column}
.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-thumb{background:#2c4566;border-radius:3px}
.sb-brand{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.07)}
.sb-brand .logo{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--blue2),var(--blue3));
  display:grid;place-items:center;font-size:20px;color:#fff;flex:none}
.sb-brand b{color:#fff;font-size:15px;line-height:1.1;font-weight:600}
.sb-brand small{color:#8ba0bd;font-size:11px}
.sb-nav{padding:12px 12px 30px;flex:1}
.sb-sec{font-size:10.5px;letter-spacing:.7px;text-transform:uppercase;color:#6f86a6;margin:16px 12px 6px;font-weight:600}
.sb-link{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#c2cdde;
  font-weight:500;margin-bottom:2px;transition:background .15s,color .15s;position:relative}
.sb-link svg{width:18px;height:18px;flex:none;opacity:.85}
.sb-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sb-link.active{background:linear-gradient(90deg,var(--blue2),rgba(46,117,182,.4));color:#fff;box-shadow:0 4px 14px rgba(46,117,182,.35)}
.sb-link .badge-sb{margin-left:auto;background:var(--danger);color:#fff;font-size:10px;border-radius:9px;padding:1px 7px;font-weight:600}

.main{flex:1;margin-left:var(--sb-w);min-width:0;display:flex;flex-direction:column}
.topbar{height:64px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:14px;padding:0 22px;box-shadow:0 1px 0 rgba(0,0,0,.02)}
.topbar .burger{background:none;border:none;color:var(--grey);font-size:22px;cursor:pointer;display:none;padding:4px}
.topbar h1{font-size:16px;font-weight:600;margin:0}
.topbar .spacer{flex:1}
.icon-btn{position:relative;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--card);
  color:var(--grey);cursor:pointer;display:grid;place-items:center;transition:.15s}
.icon-btn:hover{border-color:var(--blue2);color:var(--blue2)}
.icon-btn .dot{position:absolute;top:6px;right:7px;min-width:16px;height:16px;background:var(--danger);color:#fff;
  font-size:9.5px;border-radius:8px;display:grid;place-items:center;padding:0 4px;font-weight:600}
.user-chip{display:flex;align-items:center;gap:10px;padding:5px 10px 5px 5px;border-radius:30px;border:1px solid var(--line);
  background:var(--card);cursor:pointer}
.user-chip .av{width:32px;height:32px;border-radius:50%;background:var(--blue2);color:#fff;display:grid;place-items:center;font-weight:600;font-size:13px;overflow:hidden}
.user-chip .av img{width:100%;height:100%;object-fit:cover}
.user-chip .nm{font-size:13px;font-weight:500;line-height:1.1}
.user-chip .rl{font-size:11px;color:var(--grey2)}
.content{padding:24px 22px 60px;flex:1}

/* dropdowns */
.dropdown{position:relative}
.dropdown-menu{position:absolute;right:0;top:calc(100% + 8px);background:var(--card);border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow-lg);min-width:240px;padding:8px;display:none;z-index:80}
.dropdown-menu.open{display:block;animation:fade .15s ease}
.dropdown-menu a{display:block;padding:9px 12px;border-radius:8px;color:var(--text);font-weight:500}
.dropdown-menu a:hover{background:var(--blue-soft)}
.notif-item{display:block;padding:10px 12px;border-radius:9px}
.notif-item:hover{background:var(--blue-soft)}
.notif-item .t{font-weight:600;font-size:13px}
.notif-item .m{font-size:12px;color:var(--grey2)}
.notif-item.unread{background:var(--blue-soft)}

/* ---------- Cards & stats ---------- */
.page-head{display:flex;align-items:center;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.page-head h2{margin:0;font-size:20px;font-weight:600}
.page-head .sub{color:var(--grey2);font-size:13px}
.page-head .spacer{flex:1}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-h{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.card-h h3{margin:0;font-size:15px;font-weight:600}
.card-b{padding:20px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;
  box-shadow:var(--shadow);display:flex;align-items:center;gap:16px;position:relative;overflow:hidden}
.stat .ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;font-size:22px;flex:none;color:#fff}
.stat .v{font-size:26px;font-weight:700;line-height:1}
.stat .l{font-size:12.5px;color:var(--grey2);margin-top:3px}
.bg-blue{background:linear-gradient(135deg,#2e75b6,#5b9bd5)}
.bg-green{background:linear-gradient(135deg,#2e9e5b,#54c97f)}
.bg-amber{background:linear-gradient(135deg,#e0a800,#f1c40f)}
.bg-red{background:linear-gradient(135deg,#d6453d,#e8736c)}
.bg-grey{background:linear-gradient(135deg,#6b7280,#9aa3b0)}
.bg-cyan{background:linear-gradient(135deg,#1395a8,#3fc4d6)}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
table.tbl th{text-align:left;padding:11px 14px;background:var(--blue-soft);color:var(--blue);font-weight:600;
  font-size:12px;text-transform:uppercase;letter-spacing:.3px;white-space:nowrap}
table.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tbody tr:hover{background:var(--blue-soft)}
table.tbl tbody tr:last-child td{border-bottom:none}

/* ---------- Forms ---------- */
.form-grid{display:grid;gap:16px}
@media(min-width:680px){.form-grid.two{grid-template-columns:1fr 1fr}.form-grid.three{grid-template-columns:1fr 1fr 1fr}}
.fld label{display:block;font-size:12.5px;font-weight:500;margin-bottom:6px;color:var(--grey)}
.fld .req{color:var(--danger)}
.inp,select,textarea{width:100%;font-family:inherit;font-size:14px;color:var(--text);background:var(--bg);
  border:1px solid var(--line);border-radius:10px;padding:10px 13px;transition:.15s}
.inp:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue2);box-shadow:0 0 0 3px rgba(46,117,182,.16);background:var(--card)}
textarea{resize:vertical;min-height:80px}
.help{font-size:11.5px;color:var(--grey2);margin-top:5px}
.full{grid-column:1/-1}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:inherit;font-size:13.5px;font-weight:600;
  border:1px solid transparent;border-radius:10px;padding:10px 18px;cursor:pointer;transition:.13s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#173d61;color:#fff}
.btn-soft{background:var(--blue-soft);color:var(--blue);border-color:transparent}
.btn-soft:hover{background:#dceaf8}
.btn-ghost{background:var(--card);color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue2);color:var(--blue2)}
.btn-success{background:var(--ok);color:#fff}.btn-success:hover{background:#268a4f;color:#fff}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#bb392f;color:#fff}
.btn-warn{background:var(--warn);color:#3a2e00}.btn-warn:hover{background:#c99700}
.btn-sm{padding:6px 12px;font-size:12.5px;border-radius:8px}
.btn-icon{padding:7px;width:34px;height:34px;justify-content:center}

/* ---------- Badges ---------- */
.badge{display:inline-block;font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;letter-spacing:.2px}
.bg-secondary{background:#e5e8ec;color:#54606e}.bg-warning{background:#fdecc4;color:#9a7400}
.bg-info{background:#d4e6f6;color:#1f5d8f}.bg-danger{background:#fad9d6;color:#a8362d}
.bg-success{background:#d2efdd;color:#1e7d44}
[data-theme="dark"] .bg-secondary{background:#2a3648;color:#aeb7c4}
[data-theme="dark"] .bg-warning{background:#3d3214;color:#f1c40f}
[data-theme="dark"] .bg-info{background:#16314a;color:#7cb6e6}
[data-theme="dark"] .bg-danger{background:#3f1c1a;color:#e8736c}
[data-theme="dark"] .bg-success{background:#163524;color:#54c97f}

/* ---------- Alerts / flash ---------- */
.alert{padding:12px 16px;border-radius:11px;margin-bottom:14px;font-size:13.5px;display:flex;gap:10px;align-items:center;border:1px solid transparent}
.alert-success{background:#e6f6ec;color:#1e7d44;border-color:#bfe6cd}
.alert-danger{background:#fbe7e5;color:#a8362d;border-color:#f3c9c4}
.alert-warning{background:#fdf3d7;color:#8a6d00;border-color:#f3e2a8}
.alert-info{background:#e3f0fb;color:#1f5d8f;border-color:#c5dff5}
[data-theme="dark"] .alert{background:var(--sidebar2);border-color:var(--line);color:var(--text)}

/* ---------- Misc ---------- */
.empty{text-align:center;padding:50px 20px;color:var(--grey2)}
.empty .ic{font-size:42px;opacity:.4;margin-bottom:8px}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--blue-soft);color:var(--blue);
  border-radius:20px;padding:5px 12px;font-size:12.5px;font-weight:500}
.kv{display:grid;grid-template-columns:170px 1fr;gap:6px 14px;font-size:13.5px}
.kv dt{color:var(--grey2)}.kv dd{margin:0;font-weight:500}
.divider{height:1px;background:var(--line);margin:18px 0}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.toolbar .spacer{flex:1}
.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.thumb{position:relative;border-radius:11px;overflow:hidden;aspect-ratio:4/3;background:var(--bg);border:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .cat{position:absolute;left:6px;bottom:6px;background:rgba(20,30,45,.78);color:#fff;font-size:10px;padding:2px 7px;border-radius:6px}
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:4px;bottom:4px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-bottom:16px}
.tl-item::before{content:"";position:absolute;left:-22px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--blue2);border:2px solid var(--card)}
.tl-item .when{font-size:11.5px;color:var(--grey2)}

/* skeleton */
.skel{background:linear-gradient(90deg,var(--line) 25%,rgba(0,0,0,.04) 37%,var(--line) 63%);
  background-size:400% 100%;animation:shimmer 1.4s infinite;border-radius:8px}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:-100% 0}}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.spinner{width:38px;height:38px;border:4px solid var(--line);border-top-color:var(--blue2);border-radius:50%;animation:spin .8s linear infinite;margin:30px auto}
@keyframes spin{to{transform:rotate(360deg)}}

.grid-2{display:grid;gap:20px}
@media(min-width:900px){.grid-2{grid-template-columns:1.4fr 1fr}}
.chart-box{position:relative;height:280px}
.chart-box.sm{height:240px}

/* ---------- Responsive ---------- */
.backdrop{position:fixed;inset:0;background:rgba(10,18,30,.5);z-index:55;display:none}
.backdrop.show{display:block}
@media(max-width:992px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .topbar .burger{display:block}
  .user-chip .nm,.user-chip .rl{display:none}
}
@media(max-width:560px){
  .content{padding:16px 14px 50px}
  .kv{grid-template-columns:1fr}
  .kv dt{margin-top:8px}
}