/* ============================================================
   Moderator Management — modern, professional UI
   Light workspace + dark sidebar, indigo accent, soft shadows
   ============================================================ */
:root{
  --bg:#f4f5f7;
  --surface:#ffffff;
  --surface-2:#f9fafb;
  --text:#111827;
  --text-2:#374151;
  --muted:#6b7280;
  --border:#e5e7eb;
  --border-2:#eef0f3;
  --brand:#4f46e5;
  --brand-d:#4338ca;
  --brand-light:#eef2ff;
  --green:#16a34a;
  --green-light:#dcfce7;
  --red:#dc2626;
  --red-light:#fee2e2;
  --amber:#b45309;
  --amber-light:#fef3c7;
  --gray-light:#f1f3f5;
  --ring:rgba(79,70,229,.18);
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.06);
  --shadow-md:0 4px 12px rgba(16,24,40,.07),0 2px 4px rgba(16,24,40,.04);
  --shadow-lg:0 12px 32px rgba(16,24,40,.10);
  /* dark sidebar */
  --side-bg:#0f172a;
  --side-2:#1e293b;
  --side-text:#cbd5e1;
  --side-muted:#7c8ba1;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55;font-size:15px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{color:var(--text);font-weight:700;letter-spacing:-.01em;line-height:1.25}
h1{font-size:26px}
p{color:var(--text-2)}
a{color:var(--brand);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--brand-d)}

/* ---------- Layout shells ---------- */
.container{max-width:1100px;margin:0 auto;padding:32px 24px}
.navbar{background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);padding:0 28px;height:62px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}
.navbar .brand{font-weight:800;font-size:18px;color:var(--text);letter-spacing:-.02em}
.navbar .brand:hover{color:var(--brand)}
.navbar nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.navbar nav a{margin:0;padding:8px 12px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:500}
.navbar nav a:hover{color:var(--text);background:var(--gray-light);text-decoration:none}

.layout{display:flex;min-height:100vh}
.sidebar{width:248px;background:var(--side-bg);color:var(--side-text);padding:18px 14px;flex-shrink:0;display:flex;flex-direction:column;gap:2px}
.sidebar a{display:flex;align-items:center;gap:10px;padding:10px 14px;color:var(--side-text);border-radius:9px;font-size:14px;font-weight:500;transition:background .15s ease,color .15s ease}
.sidebar a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.sidebar a.active{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.sidebar h3{padding:0 14px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--side-muted);margin:20px 0 6px;font-weight:700}
.sidebar .btn.ghost{color:var(--side-text);border-color:rgba(255,255,255,.16);background:transparent}
.sidebar .btn.ghost:hover{background:rgba(255,255,255,.08);color:#fff}
.content{flex:1;padding:34px 38px;overflow-x:auto;max-width:100%}
.content>*{max-width:1080px}

/* ---------- Page head ---------- */
.page-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.page-head h1,.page-head h2{margin:0}
.page-head p{color:var(--muted);margin-top:4px}

/* ---------- Cards ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:22px;box-shadow:var(--shadow-sm)}
.card h2{font-size:17px;margin-bottom:16px;font-weight:700}
.card h2:only-child{margin-bottom:0}

/* ---------- Grids ---------- */
.grid{display:grid;gap:20px}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.grid.cols-2,.grid-2{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}

/* ---------- Stat tiles ---------- */
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.stat:before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--brand),#8b7df0)}
.stat .num{font-size:30px;font-weight:800;color:var(--text);letter-spacing:-.02em;line-height:1.1}
.stat .label{color:var(--muted);font-size:13px;margin-top:6px;font-weight:500}

/* ---------- Forms ---------- */
label{display:block;font-size:13px;color:var(--text-2);font-weight:600;margin:14px 0 6px}
input,select,textarea{width:100%;padding:11px 13px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:inherit;transition:border-color .15s ease,box-shadow .15s ease;outline:none}
input::placeholder,textarea::placeholder{color:#9ca3af}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--ring)}
textarea{resize:vertical;min-height:84px}
select{cursor:pointer;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7280' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center;padding-right:34px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;background:var(--brand);color:#fff;border:1px solid transparent;border-radius:var(--radius-sm);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .15s ease,box-shadow .15s ease,transform .05s ease;white-space:nowrap;line-height:1.2}
.btn:hover{background:var(--brand-d);text-decoration:none;color:#fff;box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(1px)}
.btn.sm{padding:7px 12px;font-size:13px;border-radius:8px}
.btn.ghost{background:var(--surface);color:var(--text-2);border-color:var(--border)}
.btn.ghost:hover{background:var(--gray-light);color:var(--text)}
.btn.green{background:var(--green)}.btn.green:hover{background:#15803d}
.btn.red{background:var(--red)}.btn.red:hover{background:#b91c1c}
.btn.google{background:var(--surface);color:var(--text-2);border-color:var(--border);font-weight:600;width:100%}
.btn.google:hover{background:var(--gray-light);color:var(--text);box-shadow:var(--shadow-sm)}
.btn[disabled]{opacity:.55;cursor:not-allowed}

/* ---------- Tables ---------- */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border-2);font-size:14px;color:var(--text-2)}
th{color:var(--muted);font-weight:700;font-size:11px;letter-spacing:.05em;text-transform:uppercase;background:var(--surface-2)}
tr:last-child td{border-bottom:none}
tbody tr:hover td{background:var(--surface-2)}
.card>table tr:first-child th:first-child{border-top-left-radius:8px}
.card>table tr:first-child th:last-child{border-top-right-radius:8px}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.4}
.badge.green,.badge.ok{background:var(--green-light);color:#15803d}
.badge.amber,.badge.warn{background:var(--amber-light);color:var(--amber)}
.badge.red,.badge.danger{background:var(--red-light);color:var(--red)}
.badge.gray{background:var(--gray-light);color:var(--muted)}

/* ---------- Alerts ---------- */
.alert{padding:13px 16px;border-radius:var(--radius-sm);margin-bottom:20px;font-size:14px;font-weight:500;display:flex;align-items:center;gap:8px;border:1px solid transparent}
.alert.success{background:var(--green-light);border-color:#bbf7d0;color:#166534}
.alert.error{background:var(--red-light);border-color:#fecaca;color:#991b1b}
.alert.info{background:var(--brand-light);border-color:#c7d2fe;color:var(--brand-d)}

/* ---------- Auth ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 50% -10%,#6366f1 0%,#4f46e5 35%,#3730a3 100%)}
.auth-box{width:100%;max-width:410px}
.auth-box h1{color:#fff!important;font-size:24px;letter-spacing:-.02em}
.auth-box .card{padding:32px;box-shadow:var(--shadow-lg);border:none}

/* ---------- Utilities ---------- */
.center{text-align:center}
.muted{color:var(--muted)}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.mt{margin-top:18px}.mb{margin-bottom:18px}
.inline-form{display:inline}

/* ---------- Toggle switch ---------- */
.switch{position:relative;display:inline-block;width:46px;height:26px;flex-shrink:0}
.switch input{display:none}
.slider{position:absolute;cursor:pointer;inset:0;background:#cbd5e1;border-radius:26px;transition:.25s}
.slider:before{content:'';position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.25s;box-shadow:var(--shadow-sm)}
input:checked+.slider{background:var(--green)}
input:checked+.slider:before{transform:translateX(20px)}

/* ---------- Avatars ---------- */
.avatar-initials{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,var(--brand),#8b7df0);color:#fff;font-weight:700;text-transform:uppercase;flex-shrink:0}
img.avatar{display:inline-block;background:var(--surface-2);object-fit:cover;border-radius:50%}

/* ---------- Chat ---------- */
.chat-card{padding:0;overflow:hidden}
.chat-box{height:54vh;min-height:340px;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:10px;background:var(--surface-2)}
.msg{display:flex;max-width:78%}
.msg.mine{align-self:flex-end;justify-content:flex-end}
.msg.theirs{align-self:flex-start}
.msg.system{align-self:center;max-width:90%}
.msg .bubble{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.45;word-wrap:break-word;box-shadow:var(--shadow-sm)}
.msg.theirs .bubble{background:var(--surface);border:1px solid var(--border);color:var(--text);border-bottom-left-radius:5px}
.msg.mine .bubble{background:var(--brand);color:#fff;border-bottom-right-radius:5px}
.msg.system .bubble{background:var(--amber-light);border:1px solid #fde68a;color:var(--amber);text-align:center;border-radius:10px;box-shadow:none}
.msg .who{font-size:11px;font-weight:700;color:var(--brand);margin-bottom:3px}
.msg.mine .who{color:#dfe0ff}
.msg .time{font-size:10px;opacity:.7;margin-top:4px;text-align:right}
.chat-form{display:flex;gap:10px;padding:14px;border-top:1px solid var(--border);background:var(--surface)}
.chat-form input{flex:1}

/* ---------- Responsive ---------- */
@media(max-width:760px){
  .layout{flex-direction:column}
  .sidebar{width:100%;flex-direction:row;flex-wrap:wrap;padding:12px}
  .sidebar h3{display:none}
  .content{padding:22px 18px}
  .navbar{padding:0 16px}
  .navbar nav a{padding:6px 9px}
  .container{padding:22px 16px}
}