:root{
  --bg:#f6f8fb;
  --surface:#ffffff;
  --border:#e3e8f0;
  --text:#1b2333;
  --text-dim:#5b6578;
  --text-faint:#8995a8;
  --heading:#0c1526;
  --accent:#0891b2;
  --accent-2:#6366f1;
  --accent-soft:rgba(8,145,178,.08);
  --success:#059669;
  --success-soft:rgba(5,150,105,.1);
  --warning:#d97706;
  --warning-soft:rgba(217,119,6,.1);
  --danger:#dc2626;
  --danger-soft:rgba(220,38,38,.1);
  --sidebar-bg:#0c1526;
  --sidebar-text:#9aa7c2;
  --sidebar-text-active:#ffffff;
  --radius:12px;
  --radius-sm:8px;
  --font-head:'Space Grotesk',Inter,Arial,sans-serif;
  --font-body:'Inter',Arial,sans-serif;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.5;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{font-family:var(--font-head);font-weight:600;margin:0;color:var(--heading);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

/* shell */
.dash-shell{display:flex;min-height:100vh;}
.dash-sidebar{
  width:240px;flex-shrink:0;background:var(--sidebar-bg);color:var(--sidebar-text);
  position:fixed;top:0;left:0;bottom:0;overflow-y:auto;z-index:40;
  display:flex;flex-direction:column;transition:transform .2s ease;
}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:22px 20px;font-family:var(--font-head);font-weight:700;font-size:1.05rem;color:#fff;border-bottom:1px solid rgba(255,255,255,.08);}
.sidebar-brand .accent{color:var(--accent);}
.sidebar-nav{padding:14px 10px;flex:1;}
.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);font-size:.88rem;font-weight:500;margin-bottom:2px;color:var(--sidebar-text);}
.sidebar-nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.sidebar-nav a.is-active{background:var(--accent);color:#04131a;font-weight:700;}
.sidebar-nav .nav-section{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);padding:16px 12px 6px;}
.sidebar-foot{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:.78rem;color:var(--text-faint);}

.dash-main{margin-left:240px;flex:1;min-width:0;display:flex;flex-direction:column;}
.dash-topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 28px;background:var(--surface);border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:30;
}
.topbar-title{font-size:1.15rem;}
.topbar-user{display:flex;align-items:center;gap:14px;font-size:.85rem;color:var(--text-dim);}
.sidebar-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;width:36px;height:36px;cursor:pointer;color:var(--text);font-size:1.1rem;}
.dash-content{padding:28px;flex:1;}

/* cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:20px;}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:10px;}
.card-head h2{font-size:1.05rem;}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px;}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;}
.stat-card .stat-icon{font-size:1.3rem;margin-bottom:10px;}
.stat-card .stat-num{display:block;font-family:var(--font-head);font-size:1.7rem;font-weight:700;color:var(--heading);}
.stat-card .stat-label{font-size:.8rem;color:var(--text-faint);}

/* table */
.table-wrap{overflow-x:auto;}
table.dash-table{width:100%;border-collapse:collapse;font-size:.88rem;}
table.dash-table th{text-align:left;font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text-faint);padding:10px 14px;border-bottom:1px solid var(--border);white-space:nowrap;}
table.dash-table td{padding:13px 14px;border-bottom:1px solid var(--border);vertical-align:middle;}
table.dash-table tr:last-child td{border-bottom:none;}
table.dash-table tr:hover td{background:var(--bg);}
.empty-state{text-align:center;padding:46px 20px;color:var(--text-faint);font-size:.9rem;}

/* badges */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:.74rem;font-weight:600;padding:4px 10px;border-radius:999px;white-space:nowrap;}
.badge-pending,.badge-open,.badge-provisioning{background:var(--warning-soft);color:var(--warning);}
.badge-active,.badge-paid,.badge-closed,.badge-answered{background:var(--success-soft);color:var(--success);}
.badge-cancelled,.badge-unpaid,.badge-suspended,.badge-terminated,.badge-high{background:var(--danger-soft);color:var(--danger);}
.badge-customer-reply,.badge-medium{background:var(--accent-soft);color:var(--accent);}
.badge-low{background:rgba(91,101,120,.1);color:var(--text-dim);}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:999px;font-weight:600;font-size:.85rem;border:1px solid transparent;cursor:pointer;transition:transform .12s,box-shadow .12s;white-space:nowrap;font-family:var(--font-body);}
.btn-primary{background:linear-gradient(135deg,var(--accent),#38bdf8);color:#04131a;}
.btn-primary:hover{transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-danger{background:var(--danger-soft);color:var(--danger);}
.btn-sm{padding:7px 14px;font-size:.78rem;}

/* forms */
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:.82rem;font-weight:600;color:var(--text-dim);margin-bottom:6px;}
.form-group input,.form-group select,.form-group textarea{
  width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:11px 14px;color:var(--text);font-family:var(--font-body);font-size:.9rem;resize:vertical;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-hint{font-size:.78rem;color:var(--text-faint);margin-top:4px;}

/* alerts */
.alert{padding:13px 16px;border-radius:var(--radius-sm);font-size:.86rem;margin-bottom:18px;}
.alert-success{background:var(--success-soft);color:var(--success);}
.alert-error{background:var(--danger-soft);color:var(--danger);}
.alert-info{background:var(--accent-soft);color:var(--accent);}

/* auth pages (login/register) */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:20px;}
.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px;}
.auth-logo{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;font-size:1.2rem;color:var(--heading);margin-bottom:26px;justify-content:center;}
.auth-logo .accent{color:var(--accent);}
.auth-card h1{font-size:1.25rem;text-align:center;margin-bottom:6px;}
.auth-sub{text-align:center;color:var(--text-faint);font-size:.85rem;margin-bottom:24px;}
.auth-foot{text-align:center;margin-top:18px;font-size:.85rem;color:var(--text-dim);}
.auth-foot a{color:var(--accent);font-weight:600;}

/* ticket thread */
.thread{display:flex;flex-direction:column;gap:14px;margin-bottom:20px;}
.thread-msg{border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;background:var(--surface);}
.thread-msg.is-admin{background:var(--accent-soft);border-color:rgba(8,145,178,.25);}
.thread-msg-head{display:flex;justify-content:space-between;font-size:.78rem;color:var(--text-faint);margin-bottom:8px;}
.thread-msg-head strong{color:var(--text);}
.thread-msg p{white-space:pre-wrap;font-size:.9rem;color:var(--text);}

/* key-value panel */
.kv-panel .kv-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border);font-size:.88rem;gap:16px;}
.kv-panel .kv-row:last-child{border-bottom:none;}
.kv-panel .kv-row span:first-child{color:var(--text-faint);}
.kv-panel .kv-row strong{text-align:right;}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:20px;flex-wrap:wrap;}
.tabs a{padding:10px 16px;font-size:.85rem;font-weight:600;color:var(--text-dim);border-bottom:2px solid transparent;}
.tabs a.is-active{color:var(--accent);border-bottom-color:var(--accent);}

@media (max-width:900px){
  .dash-sidebar{transform:translateX(-100%);}
  .dash-sidebar.is-open{transform:translateX(0);}
  .dash-main{margin-left:0;}
  .sidebar-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .form-row-2{grid-template-columns:1fr;}
}