/* ===========================================================
   Chatme - blue theme (WhatsApp-style layout)
   =========================================================== */
:root{
    --primary:#1e88e5;
    --primary-dark:#125ea8;
    --primary-darker:#0d4a87;
    --primary-light:#64b5f6;
    --bg-app:#dbeafe;
    --bg-chat:#e8f1fb;
    --bg-sidebar:#ffffff;
    --bubble-out:#cfe8fd;
    --bubble-out-border:#a9d7fb;
    --bubble-in:#ffffff;
    --text-dark:#0b3d66;
    --text-muted:#5c7f9c;
    --border:#dbe8f5;
    --danger:#e53935;
    --success:#2e9e5b;
    --radius:10px;
    --shadow:0 2px 8px rgba(11,61,102,.08);
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
    margin:0;
    font-family:"Noto Sans Lao","Segoe UI",Roboto,Arial,sans-serif;
    background:var(--bg-app);
    color:var(--text-dark);
}
a{text-decoration:none;color:inherit;}
button{font-family:inherit;cursor:pointer;}
ul{list-style:none;margin:0;padding:0;}
img{max-width:100%;display:block;}

.scroll-thin::-webkit-scrollbar{width:6px;}
.scroll-thin::-webkit-scrollbar-thumb{background:var(--primary-light);border-radius:6px;}

/* ---------- Auth pages ---------- */
.auth-wrap{
    min-height:100vh;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#1565c0,#42a5f5 60%,#90caf9);
    padding:20px;
}
.auth-card{
    background:#fff;
    width:100%;max-width:420px;
    border-radius:16px;
    box-shadow:0 12px 40px rgba(13,74,135,.25);
    padding:36px 32px;
}
.auth-logo{
    display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:6px;
}
.auth-logo .badge{
    width:44px;height:44px;border-radius:12px;background:var(--primary);
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700;
}
.auth-logo h1{font-size:24px;color:var(--primary-dark);margin:0;}
.auth-card p.sub{text-align:center;color:var(--text-muted);margin:0 0 24px;font-size:14px;}
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:6px;}
.form-group input,.form-group textarea,.form-group select{
    width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:8px;
    font-size:14px;background:#f7fbff;color:var(--text-dark);outline:none;transition:.15s;
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{
    border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(30,136,229,.12);
}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    padding:11px 18px;border:none;border-radius:8px;font-size:14px;font-weight:600;
    background:var(--primary);color:#fff;transition:.15s;
}
.btn:hover{background:var(--primary-dark);}
.btn.block{width:100%;}
.btn.secondary{background:#eef5fc;color:var(--primary-dark);}
.btn.secondary:hover{background:#dcedfb;}
.btn.danger{background:var(--danger);}
.btn.danger:hover{background:#c62828;}
.btn.ghost{background:transparent;color:var(--text-muted);}
.btn.ghost:hover{background:#f0f6fc;}
.btn:disabled{opacity:.6;cursor:not-allowed;}
.alert{
    padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:16px;
}
.alert.error{background:#fdecea;color:#c62828;border:1px solid #f5c2c0;}
.alert.success{background:#e7f6ec;color:#1f7a41;border:1px solid #bfe6cc;}
.auth-footer{text-align:center;margin-top:18px;font-size:13.5px;color:var(--text-muted);}
.auth-footer a{color:var(--primary);font-weight:600;}
.qr-login-link{margin-top:10px;text-decoration:none;}

.qr-box{
    position:relative;width:220px;height:220px;margin:0 auto 18px;border-radius:12px;
    background:#f2f7fc;display:flex;align-items:center;justify-content:center;overflow:hidden;
    border:1px solid var(--border);
}
.qr-canvas{width:220px;height:220px;}
.qr-canvas img,.qr-canvas canvas{width:220px !important;height:220px !important;}
.qr-overlay{
    position:absolute;inset:0;background:rgba(255,255,255,.94);display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:12px;text-align:center;padding:16px;font-size:13.5px;
    color:var(--text-muted);
}
.qr-steps{
    color:var(--text-muted);font-size:13px;line-height:1.8;margin:0 0 18px;padding-left:20px;
}

/* ---------- App shell ---------- */
.app{
    display:flex;height:100vh;max-width:1400px;margin:0 auto;
    background:var(--bg-sidebar);box-shadow:var(--shadow);
}
.sidebar{
    width:380px;min-width:320px;display:flex;flex-direction:column;
    border-right:1px solid var(--border);background:var(--bg-sidebar);
}
.sidebar-header{
    background:var(--primary);color:#fff;padding:14px 16px;
    display:flex;align-items:center;justify-content:space-between;
}
.sidebar-header .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;}
.sidebar-header .badge-mini{
    width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.2);
    display:flex;align-items:center;justify-content:center;font-weight:700;
}
.sidebar-header .actions{display:flex;gap:6px;}
.icon-btn{
    width:34px;height:34px;border-radius:50%;border:none;background:transparent;
    color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;
}
.icon-btn:hover{background:rgba(255,255,255,.18);}
.icon-btn.dark{color:var(--text-muted);}
.icon-btn.dark:hover{background:#eef5fc;}

.search-box{padding:10px 12px 6px;position:relative;}
.search-box .search-icon{position:absolute;left:24px;top:50%;transform:translateY(-50%);font-size:13px;opacity:.55;pointer-events:none;}
.search-box input{
    width:100%;padding:9px 14px 9px 34px;border-radius:20px;border:1px solid var(--border);
    background:#f2f7fc;font-size:13.5px;outline:none;
}
.search-box input:focus{border-color:var(--primary);}

.filter-tabs{display:flex;align-items:center;gap:8px;padding:6px 12px 10px;border-bottom:1px solid var(--border);}
.filter-chip{
    border:none;background:#eef5fc;color:var(--primary-dark);padding:6px 14px;border-radius:16px;
    font-size:12.5px;font-weight:600;white-space:nowrap;
}
.filter-chip:hover{background:#dcedfb;}
.filter-chip.active{background:var(--primary);color:#fff;}
.filter-add-wrap{position:relative;margin-left:auto;}
.filter-chip.filter-add{padding:6px 12px;font-size:15px;line-height:1;font-weight:700;}
.add-menu{
    display:none;position:absolute;right:0;top:calc(100% + 6px);background:#fff;border-radius:10px;
    box-shadow:var(--shadow);min-width:150px;padding:6px;z-index:20;
}
.add-menu.show{display:block;}
.add-menu button{
    display:block;width:100%;text-align:left;border:none;background:none;padding:9px 10px;
    border-radius:7px;font-size:13px;color:var(--text-dark);
}
.add-menu button:hover{background:#f0f6fc;}

.conv-list{flex:1;overflow-y:auto;}
.sys-user-header{
    padding:10px 16px 4px;font-size:11px;color:var(--text-muted);text-transform:uppercase;
    letter-spacing:.03em;cursor:default;
}
.sys-user-header:hover{background:none;}
.row-phone{font-size:12px;color:var(--primary-dark);margin:-1px 0 2px;}
.conv-item{
    display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid #f0f5fa;
    position:relative;cursor:pointer;
}
.conv-item:hover{background:#f2f8fd;}
.conv-item.active{background:#e3f1fc;}
.avatar{
    width:48px;height:48px;border-radius:50%;background:var(--primary-light);
    display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:17px;
    flex-shrink:0;overflow:hidden;
}
.avatar.sm{width:34px;height:34px;font-size:13px;}
.avatar img{width:100%;height:100%;object-fit:cover;}
.conv-meta{flex:1;min-width:0;}
.conv-meta .row1{display:flex;justify-content:space-between;align-items:center;}
.conv-meta .name{font-weight:600;font-size:14.5px;color:var(--text-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.conv-meta .time{font-size:11.5px;color:var(--text-muted);flex-shrink:0;margin-left:6px;}
.conv-meta .row2{display:flex;justify-content:space-between;align-items:center;margin-top:2px;gap:4px;}
.conv-meta .last-msg{font-size:13px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:4px;min-width:0;}
.conv-meta .last-msg .txt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.read-tick{flex-shrink:0;font-size:13px;letter-spacing:-2px;color:#9db3c6;}
.read-tick.read{color:#4fc3f7;}
.unread-badge{
    background:var(--primary);color:#fff;font-size:11px;min-width:20px;height:20px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;padding:0 6px;font-weight:700;flex-shrink:0;
}
.empty-hint{padding:30px 20px;text-align:center;color:var(--text-muted);font-size:13.5px;}

/* ---------- Chat area ---------- */
.chat-area{flex:1;display:flex;flex-direction:column;background:var(--bg-chat);min-width:0;}
.chat-area.empty{align-items:center;justify-content:center;color:var(--text-muted);}
.chat-area.empty .placeholder{text-align:center;}
.chat-area.empty .placeholder .big-badge{
    width:90px;height:90px;border-radius:50%;background:var(--primary-light);margin:0 auto 16px;
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:38px;font-weight:700;
}
.chat-header{
    background:var(--bg-sidebar);padding:10px 16px;display:flex;align-items:center;gap:12px;
    border-bottom:1px solid var(--border);
}
.chat-header .name{font-weight:600;font-size:15px;}
.chat-header .sub{font-size:12px;color:var(--text-muted);}
.chat-header .spacer{flex:1;}
.header-menu-wrap{position:relative;}

.header-search{
    background:var(--bg-sidebar);border-bottom:1px solid var(--border);padding:8px 14px;
    display:flex;align-items:center;gap:8px;
}
.header-search input{
    flex:1;padding:8px 14px;border-radius:18px;border:1px solid var(--border);background:#f2f7fc;
    font-size:13.5px;outline:none;
}
.header-search input:focus{border-color:var(--primary);}
.header-search .search-count{font-size:12px;color:var(--text-muted);white-space:nowrap;min-width:34px;text-align:center;}
mark.search-hit{background:#ffe082;color:inherit;border-radius:2px;padding:0 1px;}
mark.search-hit.current{background:var(--primary);color:#fff;}

.messages-wrap{flex:1;overflow-y:auto;padding:16px 6%;display:flex;flex-direction:column;gap:2px;}
.load-more{text-align:center;padding:6px;}
.load-more button{font-size:12.5px;color:var(--primary);background:none;border:none;}

.msg-row{display:flex;margin:4px 0;}
.msg-row.out{justify-content:flex-end;}
.msg-bubble{
    max-width:65%;padding:8px 12px;border-radius:10px;font-size:14px;line-height:1.4;
    box-shadow:0 1px 1px rgba(0,0,0,.06);position:relative;
}
.msg-row.in .msg-bubble{background:var(--bubble-in);border-top-left-radius:2px;}
.msg-row.out .msg-bubble{background:var(--bubble-out);border-top-right-radius:2px;}
.msg-sender{font-size:12px;font-weight:700;color:var(--primary-dark);margin-bottom:2px;}
.msg-content{white-space:pre-wrap;word-break:break-word;}
.msg-time{font-size:10.5px;color:var(--text-muted);text-align:right;margin-top:3px;}
.msg-file{display:flex;align-items:center;gap:8px;background:#f2f8fd;padding:8px;border-radius:8px;}
.msg-file .file-icon{font-size:22px;}
.msg-file .file-name{font-size:13px;word-break:break-all;}
.msg-image img{max-width:260px;border-radius:8px;cursor:pointer;}
.msg-video video{max-width:280px;border-radius:8px;}
.msg-audio audio{max-width:250px;}
.msg-actions{
    position:absolute;top:-14px;right:4px;display:none;background:#fff;border-radius:6px;
    box-shadow:var(--shadow);
}
.msg-bubble:hover .msg-actions{display:flex;}
.msg-actions button{border:none;background:none;padding:5px 7px;font-size:12px;color:var(--text-muted);}
.msg-actions button:hover{color:var(--primary);}

.composer{
    background:var(--bg-sidebar);padding:10px 14px;display:flex;align-items:center;gap:10px;
    border-top:1px solid var(--border);position:relative;
}
.composer input[type=text]{
    flex:1;padding:11px 16px;border-radius:22px;border:1px solid var(--border);background:#f2f7fc;
    font-size:14px;outline:none;
}
.composer input[type=text]:focus{border-color:var(--primary);}
.composer .file-preview{font-size:12px;color:var(--primary-dark);}

.emoji-panel{
    display:none;flex-direction:column;position:absolute;bottom:calc(100% + 8px);left:10px;
    width:320px;max-width:90vw;height:320px;background:#fff;border-radius:12px;
    box-shadow:var(--shadow);z-index:30;overflow:hidden;
}
.emoji-panel.show{display:flex;}
.emoji-tabs{display:flex;border-bottom:1px solid var(--border);flex-shrink:0;}
.emoji-tabs button{
    flex:1;border:none;background:none;padding:8px 0;font-size:17px;cursor:pointer;border-radius:0;
}
.emoji-tabs button.active{background:#eef5fc;}
.emoji-grid{
    flex:1;overflow-y:auto;display:grid;grid-template-columns:repeat(7,1fr);gap:2px;padding:8px;
}
.emoji-grid button{
    border:none;background:none;font-size:21px;line-height:1;padding:5px 0;cursor:pointer;
    border-radius:6px;
}
.emoji-grid button:hover{background:#eef5fc;}
@media (max-width:820px){
    .emoji-panel{width:280px;height:280px;left:0;}
}

/* ---------- Modals ---------- */
.modal-overlay{
    position:fixed;inset:0;background:rgba(11,61,102,.45);display:none;
    align-items:center;justify-content:center;z-index:100;
}
.modal-overlay.show{display:flex;}
.modal{
    background:#fff;border-radius:14px;width:100%;max-width:420px;max-height:85vh;
    display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.modal-header{
    padding:16px 18px;border-bottom:1px solid var(--border);display:flex;
    align-items:center;justify-content:space-between;
}
.modal-header h3{margin:0;font-size:16px;color:var(--text-dark);}
.modal-body{padding:16px 18px;overflow-y:auto;}
.modal-footer{padding:14px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;}
.close-x{border:none;background:none;font-size:20px;color:var(--text-muted);}

.user-pick-list{max-height:260px;overflow-y:auto;margin-top:10px;}
.user-pick-item{
    display:flex;align-items:center;gap:10px;padding:8px 6px;border-radius:8px;
}
.user-pick-item:hover{background:#f2f8fd;}
.user-pick-item .info{flex:1;min-width:0;}
.user-pick-item .info .n{font-weight:600;font-size:13.5px;}
.user-pick-item .info .u{font-size:12px;color:var(--text-muted);}
.selected-chip{
    display:inline-flex;align-items:center;gap:5px;background:#e3f1fc;color:var(--primary-dark);
    padding:4px 8px;border-radius:14px;font-size:12px;margin:2px 4px 2px 0;
}
.selected-chip button{border:none;background:none;color:var(--primary-dark);font-size:12px;}

/* ---------- Admin ---------- */
.admin-wrap{display:flex;min-height:100vh;}
.admin-side{
    width:230px;background:var(--primary-darker);color:#fff;padding:20px 0;flex-shrink:0;
}
.admin-side .brand{padding:0 20px 20px;font-weight:700;font-size:18px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:10px;}
.admin-side a{
    display:block;padding:12px 20px;font-size:14px;color:#cfe4fb;
}
.admin-side a:hover,.admin-side a.active{background:rgba(255,255,255,.1);color:#fff;}
.admin-main{flex:1;padding:26px 32px;background:#f2f7fc;}
.admin-main h2{color:var(--text-dark);margin:0 0 20px;}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:26px;}
.stat-card{background:#fff;border-radius:12px;padding:18px 20px;box-shadow:var(--shadow);}
.stat-card .val{font-size:26px;font-weight:700;color:var(--primary-dark);}
.stat-card .lbl{font-size:13px;color:var(--text-muted);margin-top:4px;}
.panel{background:#fff;border-radius:12px;padding:20px;box-shadow:var(--shadow);margin-bottom:22px;}
.panel h3{margin:0 0 16px;font-size:15px;color:var(--text-dark);}
.bar-chart{display:flex;align-items:flex-end;gap:10px;height:160px;}
.bar-chart .bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-chart .bar{width:100%;background:var(--primary);border-radius:4px 4px 0 0;transition:.2s;}
.bar-chart .bar-label{font-size:11px;color:var(--text-muted);margin-top:6px;}
.bar-chart .bar-value{font-size:11px;color:var(--primary-dark);font-weight:700;margin-bottom:4px;}
table.data-table{width:100%;border-collapse:collapse;font-size:13.5px;}
table.data-table th{
    text-align:left;padding:10px 12px;border-bottom:2px solid var(--border);color:var(--text-muted);
    font-size:12px;text-transform:uppercase;
}
table.data-table td{padding:10px 12px;border-bottom:1px solid #eef4fa;}
table.data-table tr:hover td{background:#f7fbff;}
.pill{padding:3px 10px;border-radius:12px;font-size:11.5px;font-weight:600;}
.pill.pending{background:#fff3e0;color:#e65100;}
.pill.reviewed{background:#e3f1fc;color:var(--primary-dark);}
.pill.resolved{background:#e7f6ec;color:#1f7a41;}
.pill.online{background:#e7f6ec;color:#1f7a41;}
.pill.offline{background:#eceff1;color:#607d8b;}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:10px;flex-wrap:wrap;}
.toolbar .filters{display:flex;gap:8px;}
.toolbar select,.toolbar input{
    padding:8px 12px;border-radius:8px;border:1px solid var(--border);font-size:13px;
}

.pagination{display:flex;gap:6px;flex-wrap:wrap;margin-top:16px;}
.pagination a{
    display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;
    padding:0 8px;border-radius:8px;background:#eef5fc;color:var(--primary-dark);font-size:13px;font-weight:600;
    text-decoration:none;
}
.pagination a:hover{background:#dcedfb;}
.pagination a.active{background:var(--primary);color:#fff;}

.btn-back{display:none;}

@media(max-width:820px){
    html,body{overflow-x:hidden;}
    .app{position:relative;height:100vh;height:100dvh;}
    .sidebar{width:100%;min-width:0;position:absolute;inset:0;z-index:5;}
    .sidebar.hide-mobile{display:none;}
    .chat-area{width:100%;}
    .chat-area.empty{display:none;}

    .btn-back{display:flex;flex-shrink:0;}
    .chat-header{padding:8px 10px;gap:4px;}
    .chat-header .name{max-width:38vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
    .chat-header .sub{max-width:38vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
    .icon-btn{width:32px;height:32px;font-size:14px;}

    .filter-tabs{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;}
    .filter-tabs::-webkit-scrollbar{display:none;}
    .filter-chip{flex-shrink:0;}

    .messages-wrap{padding:12px 4%;}
    .msg-bubble{max-width:82%;}
    .composer{padding:8px 10px;}
    .composer input[type=text]{padding:9px 14px;}

    .modal-overlay{padding:14px;}
    .modal{max-width:100%;max-height:90vh;}
    .call-overlay .call-avatar{width:90px;height:90px;font-size:34px;}
    .call-controls{gap:16px;}
    .call-btn{width:54px;height:54px;font-size:20px;}
    .call-overlay video.call-local-video{width:96px;height:126px;right:14px;bottom:110px;}

    .admin-wrap{flex-direction:column;}
    .admin-side{width:100%;padding:10px 0;display:flex;align-items:center;overflow-x:auto;}
    .admin-side .brand{display:none;}
    .admin-side a{padding:8px 14px;white-space:nowrap;}
    .admin-main{padding:16px;}
    .stat-grid{grid-template-columns:repeat(2,1fr);}
}

@media(max-width:420px){
    .stat-grid{grid-template-columns:1fr 1fr;}
    .msg-bubble{max-width:88%;}
}

/* ---------- Voice / video call UI ---------- */
.call-overlay{
    position:fixed;inset:0;background:linear-gradient(160deg,#0d4a87,#1e88e5 70%);
    display:none;flex-direction:column;align-items:center;justify-content:center;
    color:#fff;z-index:200;text-align:center;
}
.call-overlay.show{display:flex;}
.call-overlay .call-avatar{
    width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.18);
    display:flex;align-items:center;justify-content:center;font-size:44px;font-weight:700;
    margin-bottom:18px;overflow:hidden;
}
.call-overlay .call-avatar img{width:100%;height:100%;object-fit:cover;}
.call-overlay.ringing .call-avatar{animation:call-pulse 1.4s infinite;}
@keyframes call-pulse{
    0%{box-shadow:0 0 0 0 rgba(255,255,255,.45);}
    70%{box-shadow:0 0 0 26px rgba(255,255,255,0);}
    100%{box-shadow:0 0 0 0 rgba(255,255,255,0);}
}
.call-overlay .call-name{font-size:22px;font-weight:700;margin-bottom:6px;}
.call-overlay .call-status{font-size:14px;opacity:.85;margin-bottom:30px;}
.call-overlay video.call-remote-video{
    width:70vw;max-width:640px;height:auto;aspect-ratio:16/9;max-height:50vh;object-fit:cover;
    border-radius:14px;background:#000;margin-bottom:24px;
}
.call-overlay video.call-local-video{
    position:absolute;bottom:120px;right:24px;z-index:5;
    width:130px;height:170px;object-fit:cover;border-radius:10px;background:#000;
    border:2px solid rgba(255,255,255,.4);cursor:move;touch-action:none;user-select:none;
}
.pip-resize-handle{
    position:absolute;width:20px;height:20px;z-index:6;cursor:nwse-resize;touch-action:none;
    background:rgba(255,255,255,.85);color:var(--primary-dark);border-radius:5px;
    display:flex;align-items:center;justify-content:center;font-size:12px;user-select:none;
}
.call-controls{display:flex;gap:22px;align-items:center;}
.call-btn{
    width:60px;height:60px;border-radius:50%;border:none;font-size:22px;display:flex;
    align-items:center;justify-content:center;color:#fff;
}
.call-btn.accept{background:#2e9e5b;}
.call-btn.reject,.call-btn.end{background:var(--danger);}
.call-btn.mute,.call-btn.fullscreen,.call-btn.videotoggle{background:rgba(255,255,255,.22);}
.call-btn.mute.active{background:#fff;color:var(--primary-dark);}
.call-btn.videotoggle.off{background:var(--danger);}
.call-btn:hover{filter:brightness(1.08);}

/* Full-bleed layout once a video call is actually connected */
.call-overlay.video-mode{padding:0;}
.call-overlay.video-mode video.call-remote-video{
    position:absolute;inset:0;width:100%;height:100%;max-width:none;max-height:none;
    aspect-ratio:auto;object-fit:cover;border-radius:0;margin:0;z-index:1;
}
.call-overlay.video-mode .call-avatar{display:none;}
.call-overlay.video-mode .call-name{
    position:absolute;top:18px;left:22px;z-index:2;margin:0;font-size:16px;
    text-shadow:0 1px 6px rgba(0,0,0,.65);
}
.call-overlay.video-mode .call-status{
    position:absolute;top:44px;left:22px;z-index:2;margin:0;font-size:12.5px;
    text-shadow:0 1px 6px rgba(0,0,0,.65);
}
.call-overlay.video-mode .call-controls{
    position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;
    background:rgba(0,0,0,.3);padding:10px 18px;border-radius:40px;
}
.call-overlay.video-mode video.call-local-video{z-index:3;}
.call-overlay:fullscreen,.call-overlay:-webkit-full-screen{width:100vw;height:100vh;}

/* ---------- QR scanner (scan another device's login QR with the camera) ---------- */
.qr-scan-overlay{
    position:fixed;inset:0;background:#000;display:none;align-items:center;justify-content:center;
    z-index:210;overflow:hidden;
}
.qr-scan-overlay.show{display:flex;}
.qr-scan-overlay video{width:100%;height:100%;object-fit:cover;}
.qr-scan-frame{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    width:min(70vw,280px);height:min(70vw,280px);border:3px solid rgba(255,255,255,.85);
    border-radius:16px;box-shadow:0 0 0 2000px rgba(0,0,0,.45);pointer-events:none;
}
.qr-scan-status{
    position:absolute;bottom:60px;left:0;right:0;text-align:center;color:#fff;font-size:14px;
    padding:0 24px;text-shadow:0 1px 6px rgba(0,0,0,.6);
}
.qr-scan-close{
    position:absolute;top:16px;right:16px;z-index:2;background:rgba(255,255,255,.15);color:#fff;
}

.msg-call{display:flex;align-items:center;gap:8px;color:var(--text-dark);}
.msg-call .call-icon{font-size:18px;}
.msg-call.missed{color:var(--danger);}

/* ---------- Group call grid (mesh WebRTC, >2 participants) ---------- */
.call-grid{
    display:none;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;
    width:min(920px,90vw);max-height:60vh;overflow-y:auto;margin:0 0 24px;padding:4px;
}
.call-tile{
    position:relative;background:rgba(255,255,255,.08);border-radius:14px;overflow:hidden;
    aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;
}
.call-tile video{width:100%;height:100%;object-fit:cover;display:none;}
.call-tile.self video{transform:scaleX(-1);}
.call-tile .tile-avatar{
    width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.18);
    display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;overflow:hidden;
}
.call-tile .tile-avatar img{width:100%;height:100%;object-fit:cover;}
.call-tile .tile-name{
    position:absolute;left:8px;bottom:6px;font-size:12px;background:rgba(0,0,0,.45);
    padding:2px 8px;border-radius:10px;text-shadow:0 1px 3px rgba(0,0,0,.5);
}