/* TechSlide Admin — dashboard styles */
:root{
  --bg:#0b0f1a; --panel:#111726; --panel-2:#151d2e; --border:rgba(255,255,255,.08);
  --border-2:rgba(255,255,255,.14); --text:#eef1f8; --muted:#98a2b8; --muted-2:#6b7488;
  --fire:#ff4d3d; --flame:#ff8a00; --cyan:#22d3ee; --violet:#7c5cff;
  --grad:linear-gradient(135deg,#ff4d3d,#ff8a00); --ok:#22c55e; --err:#ef4444;
  --radius:14px; --font:"Inter",system-ui,Segoe UI,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
svg{width:20px;height:20px}
img{max-width:100%;display:block}
.admin-shell{display:flex;min-height:100vh}
.sidebar{width:250px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;height:100dvh;z-index:50;overflow:hidden}
.side-brand{flex:none}
.side-brand{padding:22px 20px;border-bottom:1px solid var(--border)}
.side-brand img{height:38px;width:auto}
.side-nav{padding:14px 12px;display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto;min-height:0;scrollbar-width:thin;scrollbar-color:var(--border-2) transparent}
.side-nav::-webkit-scrollbar{width:7px}
.side-nav::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:8px}
.side-nav::-webkit-scrollbar-track{background:transparent}
.side-nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:11px;color:var(--muted);font-weight:500;font-size:.95rem;transition:.2s}
.side-nav a:hover{background:var(--panel-2);color:var(--text)}
.side-nav a.active{background:var(--grad);color:#fff;box-shadow:0 8px 24px -8px rgba(255,77,61,.6)}
.side-nav a.active svg{color:#fff}
.side-label{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);padding:14px 14px 6px}
/* Collapsible nav groups (accordion) */
.nav-group{display:flex;flex-direction:column}
.nav-group-head{display:flex;align-items:center;justify-content:space-between;width:100%;background:none;border:none;cursor:pointer;font-family:inherit;color:var(--muted-2);font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:13px 14px 8px;border-radius:9px}
.nav-group-head:hover{color:var(--text)}
.nav-group-head .chev{width:14px;height:14px;transition:transform .25s;flex:none;opacity:.7}
.nav-group.open>.nav-group-head{color:var(--text)}
.nav-group.open>.nav-group-head .chev{transform:rotate(180deg)}
.nav-group-body{display:none;flex-direction:column;gap:4px;padding-bottom:6px}
.nav-group.open>.nav-group-body{display:flex}
.role-chip{display:inline-block;padding:1px 8px;border-radius:999px;background:var(--panel-2);border:1px solid var(--border-2);font-size:.72rem;text-transform:capitalize;color:var(--flame)}
.side-foot{padding:16px;border-top:1px solid var(--border);flex:none}
.view-site{color:var(--muted);font-size:.85rem}
.view-site:hover{color:var(--flame)}
.admin-main{flex:1;margin-left:250px;display:flex;flex-direction:column;min-width:0}
.topbar{height:68px;display:flex;align-items:center;gap:16px;padding:0 26px;background:rgba(11,15,26,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}
.topbar h1{font-size:1.15rem;font-weight:700;flex:1}
.menu-btn{display:none;font-size:1.4rem;background:none;border:none;color:var(--text);cursor:pointer}
.topbar-user{display:flex;align-items:center;gap:14px;font-size:.9rem;color:var(--muted)}
.logout{padding:7px 14px;border:1px solid var(--border-2);border-radius:9px;font-weight:600;color:var(--text)}
.logout:hover{background:var(--panel-2)}
.content{padding:26px;max-width:1200px;width:100%}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:26px}
.stat-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.stat-card .ic{width:44px;height:44px;border-radius:11px;background:var(--grad);display:grid;place-items:center;margin-bottom:14px}
.stat-card .ic svg{color:#fff}
.stat-card b{font-size:2rem;font-weight:800;display:block}
.stat-card span{color:var(--muted);font-size:.88rem}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:22px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.panel-head h2{font-size:1.1rem;font-weight:700}
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:.92rem;background:var(--panel)}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--border);vertical-align:top}
th{color:var(--muted-2);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;background:var(--panel-2)}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--panel-2)}
td .muted{color:var(--muted);font-size:.85rem}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.74rem;font-weight:700;text-transform:capitalize}
.badge.new{background:rgba(34,211,238,.14);color:var(--cyan)}
.badge.read{background:rgba(152,162,184,.16);color:var(--muted)}
.badge.replied{background:rgba(34,197,94,.16);color:#86efac}
.badge.archived{background:rgba(107,116,136,.16);color:var(--muted-2)}
.badge.published{background:rgba(34,197,94,.16);color:#86efac}
.badge.draft{background:rgba(255,138,0,.16);color:var(--flame)}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem;padding:10px 18px;border-radius:10px;cursor:pointer;border:1px solid transparent;transition:.2s;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--grad);color:#fff}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:var(--panel-2);border-color:var(--border-2);color:var(--text)}
.btn-ghost:hover{background:var(--border)}
.btn-danger{background:rgba(239,68,68,.14);color:#fca5a5;border-color:rgba(239,68,68,.3)}
.btn-danger:hover{background:rgba(239,68,68,.24)}
.btn-sm{padding:6px 12px;font-size:.82rem}
.actions{display:flex;gap:8px;flex-wrap:wrap}
form.inline{display:inline}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:7px}
.field input,.field textarea,.field select{width:100%;padding:11px 14px;border-radius:10px;background:#0a0f1a;border:1px solid var(--border-2);color:var(--text);font-size:.94rem;font-family:inherit}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--flame);box-shadow:0 0 0 3px rgba(255,138,0,.15)}
.field textarea{resize:vertical;min-height:180px}
.field .hint{color:var(--muted-2);font-size:.78rem;margin-top:6px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-actions{display:flex;gap:12px;margin-top:8px;flex-wrap:wrap}
.alert{padding:13px 18px;border-radius:11px;margin-bottom:18px;font-size:.92rem}
.alert.ok{background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);color:#86efac}
.alert.err{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);color:#fca5a5}
.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.chart-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px;margin-bottom:22px}
.chart-box{position:relative;height:280px}
.stat-grid.six{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.chart-grid{grid-template-columns:1fr}.stat-grid.six{grid-template-columns:repeat(2,1fr)}}
.bar-list{display:flex;flex-direction:column;gap:12px}
.bar-row{display:grid;grid-template-columns:130px 1fr 40px;align-items:center;gap:10px;font-size:.86rem}
.bar-track{height:10px;border-radius:999px;background:var(--panel-2);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:var(--grad)}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.filters a{padding:7px 14px;border-radius:999px;background:var(--panel-2);border:1px solid var(--border);font-size:.85rem;color:var(--muted)}
.filters a.on{background:var(--grad);color:#fff;border-color:transparent}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:
  radial-gradient(600px 400px at 20% 0%,rgba(255,77,61,.16),transparent 60%),
  radial-gradient(600px 500px at 100% 100%,rgba(124,92,255,.16),transparent 55%),var(--bg)}
.auth-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:34px}
.auth-card .logo{height:44px;width:auto;margin:0 auto 22px}
.auth-card h1{font-size:1.4rem;text-align:center;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--muted);font-size:.9rem;margin-bottom:24px}
.detail-grid{display:grid;grid-template-columns:120px 1fr;gap:10px 16px;font-size:.94rem}
.detail-grid dt{color:var(--muted-2);font-weight:600}
.detail-grid dd{color:var(--text);word-break:break-word}
@media(max-width:900px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){
  .sidebar{transform:translateX(-100%);transition:transform .3s;box-shadow:0 0 40px rgba(0,0,0,.5)}
  .sidebar.open{transform:none}
  .admin-main{margin-left:0}
  .menu-btn{display:block}
  .form-row{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .content{padding:18px 15px}
  .panel{padding:16px}
  .panel-head{flex-wrap:wrap;gap:10px}
  .panel-head .actions{flex-wrap:wrap}
  .topbar{padding:0 15px;gap:10px}
  .topbar h1{font-size:1rem}
  /* Tables scroll horizontally instead of breaking the layout */
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .table-wrap table{min-width:560px}
}
@media(max-width:520px){
  .stat-grid,.stat-grid.six{grid-template-columns:1fr}
}
/* When a mobile overlay/menu is open, dim the main content */
.sidebar-backdrop{display:none}
@media(max-width:760px){
  .sidebar-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:45}
  .sidebar-backdrop.on{display:block}
}