:root{
  --page-bg:#FDFCF9; --surface:#FFFFFF; --border:#E8E6E2; --divider:#C5C0BA;
  --text-primary:#151515; --text-body:#3D3D3D; --text-secondary:#717171;
  --hero:#DEE5F7; --accent:#3E54CE; --accent-light:#A3AEEE;
  --success-bg:#E8FBCF; --success-fg:#3D4826;
  --warning-bg:#FFF0DC; --warning-fg:#E47700;
  --info-bg:#DEE5F7; --info-fg:#3E54CE;
  --neutral-bg:#FDF9F2; --neutral-fg:#7C746F;
}
*{box-sizing:border-box; margin:0; padding:0;}
body{
  font-family:'Inter Tight', system-ui, -apple-system, sans-serif;
  background:var(--page-bg); color:var(--text-body); font-size:14px; line-height:1.5;
}
.muted{color:var(--text-secondary);}

/* login */
.login-body{min-height:100vh; display:flex; align-items:center; justify-content:center; background:linear-gradient(160deg, #DEE5F7 0%, #FDFCF9 60%); padding:16px;}
.login-card{background:var(--surface); border:0.5px solid var(--border); border-radius:16px; padding:32px; width:100%; max-width:380px; box-shadow:0 10px 30px rgba(21,21,21,0.06);}
.login-brand{font-size:22px; font-weight:600; color:var(--text-primary);}
.login-sub{font-size:13px; color:var(--text-secondary); margin-bottom:22px;}
.login-form label{display:block; font-size:13px; font-weight:500; margin-bottom:14px; color:var(--text-primary);}
.login-form input{width:100%; margin-top:4px;}
.login-error{background:var(--warning-bg); color:var(--warning-fg); border-radius:8px; padding:8px 12px; font-size:13px; margin-bottom:10px;}

/* layout */
.topbar{background:var(--hero); border-bottom:0.5px solid var(--border);}
.topbar-inner{max-width:1200px; margin:0 auto; padding:12px 20px; display:flex; justify-content:space-between; align-items:center;}
.brand{font-size:17px; font-weight:600; color:var(--text-primary);}
.brand span{color:var(--accent);}
.topbar-right{display:flex; align-items:center; gap:12px;}
.user-name{font-size:13px; color:var(--text-body);}
.tabs{max-width:1200px; margin:0 auto; padding:0 20px; display:flex; gap:6px; flex-wrap:wrap; border-bottom:0.5px solid var(--border);}
.tab{background:none; border:none; padding:12px 14px; font-size:14px; font-weight:500; color:var(--text-secondary); cursor:pointer; border-bottom:2px solid transparent;}
.tab:hover{color:var(--text-primary);}
.tab.active{color:var(--accent); border-bottom-color:var(--accent);}
.content{max-width:1200px; margin:0 auto; padding:24px 20px 60px;}
.view{display:none;}
.view-head{margin-bottom:6px;}
.view-head h2{font-size:17px; font-weight:600; color:var(--text-primary);}
.view-sub{font-size:12px; color:var(--text-secondary); display:block; margin-bottom:14px;}

/* controls */
.input{
  border:0.5px solid var(--divider); border-radius:8px; padding:8px 10px; font-size:13px;
  font-family:inherit; background:var(--surface); color:var(--text-primary); min-width:0;
}
.filters{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px; align-items:center;}
.filters .input{flex:1 1 160px;}
.btn{
  border:0.5px solid var(--divider); background:var(--surface); color:var(--text-primary);
  border-radius:8px; padding:8px 14px; font-size:13px; font-weight:500; cursor:pointer; font-family:inherit;
}
.btn:hover{border-color:var(--accent-light);}
.btn-primary{background:var(--accent); color:#fff; border-color:transparent;}
.btn-primary:hover{opacity:0.92;}
.btn-ghost{background:none; border-color:transparent; color:var(--text-secondary);}
.btn-ghost:hover{color:var(--text-primary);}
.btn-small{padding:4px 10px; font-size:12px;}
.btn-block{width:100%; margin-top:6px;}
.btn:disabled{opacity:0.6; cursor:default;}

/* tables */
.tbl-wrap{overflow-x:auto; background:var(--surface); border:0.5px solid var(--border); border-radius:12px; margin-bottom:14px;}
table{width:100%; border-collapse:collapse; min-width:720px;}
th{font-size:12px; font-weight:500; color:var(--text-secondary); text-align:left; padding:9px 12px; border-bottom:1px solid var(--divider); white-space:nowrap;}
td{font-size:13px; padding:9px 12px; border-bottom:0.5px solid var(--border); vertical-align:middle;}
tr:last-child td{border-bottom:none;}
tr:hover td{background:#FAF9F6;}

/* pills */
.pill{display:inline-block; font-size:11px; font-weight:500; padding:2px 8px; border-radius:20px; white-space:nowrap;}
.pill-info{background:var(--info-bg); color:var(--info-fg);}
.pill-success{background:var(--success-bg); color:var(--success-fg);}
.pill-warning{background:var(--warning-bg); color:var(--warning-fg);}
.pill-neutral{background:var(--neutral-bg); color:var(--neutral-fg);}

/* cards */
.acct-card{display:flex; justify-content:space-between; align-items:center; gap:12px; background:var(--surface); border:0.5px solid var(--border); border-radius:12px; padding:12px 14px; margin-bottom:8px; flex-wrap:wrap;}
.acct-title{font-size:14px; font-weight:600; color:var(--text-primary); display:flex; align-items:center; gap:8px; flex-wrap:wrap;}
.acct-meta{font-size:12.5px; color:var(--text-body); margin-top:2px;}
.acct-side{display:flex; align-items:center; gap:10px; flex-wrap:wrap;}
.empty{background:var(--surface); border:0.5px dashed var(--divider); border-radius:12px; padding:22px; text-align:center; color:var(--text-secondary); font-size:13px;}

/* upload */
.upload-box{display:flex; gap:10px; align-items:center; flex-wrap:wrap; background:var(--surface); border:0.5px solid var(--border); border-radius:12px; padding:16px; margin-bottom:10px;}
.upload-box .input{flex:1 1 240px;}
.result-box{background:var(--success-bg); color:var(--success-fg); border-radius:10px; padding:12px 14px; margin-bottom:10px; font-size:13px;}
.result-ok{margin-bottom:6px;}

/* metrics */
.metric-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(170px,1fr)); gap:12px; margin:10px 0;}
.metric{background:var(--surface); border:0.5px solid var(--border); border-radius:12px; padding:13px 15px;}
.metric .l{font-size:12px; color:var(--text-secondary);}
.metric .v{font-size:24px; font-weight:600; color:var(--text-primary); letter-spacing:-0.01em;}
.metric .d{font-size:11.5px; color:var(--text-secondary);}
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
.hint{font-size:12px; color:var(--text-secondary); margin-top:6px;}
h3{font-size:14.5px; color:var(--text-primary);}

/* modal */
[hidden]{display:none !important;}
.modal{position:fixed; inset:0; background:rgba(21,21,21,0.45); display:flex; align-items:flex-start; justify-content:center; padding:40px 16px; z-index:50; overflow-y:auto;}
.modal-box{background:var(--surface); border-radius:16px; width:100%; max-width:520px; padding:20px 22px;}
.modal-head{display:flex; justify-content:space-between; align-items:center; margin-bottom:8px;}
.modal-head h3{font-size:16px;}
.modal-close{background:none; border:none; font-size:24px; cursor:pointer; color:var(--text-secondary); line-height:1;}
.modal-info{font-size:12.5px; color:var(--text-secondary); background:var(--neutral-bg); border-radius:8px; padding:8px 10px; margin-bottom:12px;}
.modal-body label{display:block; font-size:13px; font-weight:500; margin-bottom:10px; color:var(--text-primary);}
.modal-body .input{width:100%; margin-top:4px;}
.modal-actions{display:flex; gap:8px; margin-top:6px; flex-wrap:wrap;}
#callHistory{margin-top:14px; border-top:0.5px solid var(--border); padding-top:10px; font-size:13px;}
.hist-row{padding:7px 0; border-bottom:0.5px solid var(--border);}
.hist-row:last-child{border-bottom:none;}

@media (max-width:700px){
  .grid-2{grid-template-columns:1fr;}
  .content{padding:16px 12px 50px;}
}