/* === tokens ============================================================ */
:root{
  color-scheme:dark;
  --bg:#121513;--panel:#181c19;--panel2:#1e231f;--panel3:#242a25;--sidebar:#101310;
  --line:#313832;--line2:#485149;--text:#edf0ec;--muted:#9da79f;--subtle:#7c877f;
  --accent:#8fb9a4;--accent2:#a4c9b6;--accentink:#102018;--danger:#e18f8a;--warn:#d0ad70;--success:#a7c892;
  --field:#121713;--selected:#28352e;--hover:#202621;--shadow:rgba(0,0,0,.32);
  --font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Consolas,monospace;--r:4px;--control:38px
}
html[data-theme=light]{
  color-scheme:light;
  --bg:#f2f4f1;--panel:#fff;--panel2:#f7f8f6;--panel3:#edf1ec;--sidebar:#e9eee9;
  --line:#cbd2cb;--line2:#aeb8af;--text:#202622;--muted:#647068;--subtle:#7a847d;
  --accent:#507b67;--accent2:#416b58;--accentink:#fff;--danger:#a94c48;--warn:#8a6930;--success:#587a49;
  --field:#fff;--selected:#dce8e0;--hover:#e8ede8;--shadow:rgba(31,39,33,.16)
}

/* === base =============================================================== */
*{box-sizing:border-box;scrollbar-color:var(--line2) var(--panel);scrollbar-width:thin}
html,body{min-height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
input,select,textarea{width:100%;min-height:var(--control);border:1px solid var(--line2);border-radius:var(--r);background:var(--field);padding:8px 11px;outline:0}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
input::placeholder{color:var(--subtle)}
button{cursor:pointer}
.icon{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.muted{color:var(--muted)}
.mono{font-family:var(--mono)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--control);padding:7px 14px;border:1px solid var(--line2);border-radius:var(--r);background:var(--panel2);color:var(--text);font-weight:650;white-space:nowrap}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accentink)}
.btn.primary:hover{background:var(--accent2);border-color:var(--accent2)}
.btn.ghost{background:transparent;border-color:transparent}
.btn.danger{color:var(--danger)}
.btn.full{width:100%}
.btn.lg{min-height:46px;font-size:15px}

.badge{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:11px;color:var(--muted)}
.badge.ok{color:var(--success);border-color:color-mix(in srgb,var(--success) 40%,var(--line))}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 0 3px color-mix(in srgb,currentColor 18%,transparent)}

.alert{margin:0 0 16px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel2);display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.5}
.alert .icon{margin-top:1px;color:var(--muted)}
.alert.success{border-color:color-mix(in srgb,var(--success) 45%,var(--line));color:var(--success)}
.alert.success .icon{color:var(--success)}
.alert.danger{border-color:color-mix(in srgb,var(--danger) 45%,var(--line));color:var(--danger)}
.alert.danger .icon{color:var(--danger)}
.alert strong{color:var(--text)}

/* theme toggle, shared by every page */
.theme-toggle{width:36px;height:36px;min-height:36px;padding:0;border:1px solid var(--line2);border-radius:var(--r);background:var(--panel2);color:var(--accent2);outline:1px solid color-mix(in srgb,var(--text) 18%,transparent);flex:0 0 auto}
.theme-toggle:hover{background:var(--hover);border-color:var(--accent)}
.theme-toggle .icon{width:18px;height:18px;display:block;margin:auto}
.theme-toggle .ic-moon{display:none}
html[data-theme=light] .theme-toggle .ic-sun{display:none}
html[data-theme=light] .theme-toggle .ic-moon{display:block}

/* === dashboard shell (stats page) ======================================= */
.shell{min-height:100vh;display:grid;grid-template-rows:56px minmax(0,1fr)}
.topbar{position:relative;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;padding:0 16px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;min-width:0}
.brand svg{color:var(--accent);width:24px;height:24px;flex:0 0 auto}
.brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.header-online{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;justify-content:center}
.header-online strong{color:var(--text);font-size:16px}
.top-actions{display:flex;align-items:center;gap:8px;justify-content:flex-end}
.route-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;background:transparent}
.route-progress>span{display:block;width:35%;height:100%;background:var(--accent);animation:route-progress 1.1s ease-in-out infinite}
.route-progress[hidden]{display:none}
@keyframes route-progress{0%{transform:translateX(-110%)}50%{transform:translateX(120%)}100%{transform:translateX(310%)}}

.icon-sprite{display:none}

.content{min-width:0;min-height:0;overflow:auto;padding:26px 28px 48px}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.page-head h1{margin:0;font-size:24px;letter-spacing:-.3px}
.page-head p{margin:4px 0 0;color:var(--muted)}
.eyebrow{margin:0 0 6px;text-transform:uppercase;letter-spacing:.12em;font-size:11px;font-weight:750;color:var(--subtle)}

.cards{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:12px;margin-bottom:22px}
.card{padding:16px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel);display:grid;grid-template-columns:30px minmax(0,1fr);gap:12px;align-items:start}
.card>.icon{width:22px;height:22px;color:var(--accent);margin-top:2px}
.card .k{color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.07em}
.card .v{margin-top:5px;font-size:24px;font-weight:720;overflow-wrap:anywhere}
.card .vs{margin-top:5px;font-size:14px;font-weight:650;overflow-wrap:anywhere}

.section-title{margin:0 2px 10px;color:var(--muted);font-size:10px;font-weight:750;letter-spacing:.08em;text-transform:uppercase}
.panel{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);overflow:hidden}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:44px;padding:0 13px;border-bottom:1px solid var(--line)}
.panel-head h2{margin:0;font-size:14px;font-weight:650}

.graphs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.graph-chart{display:block;width:100%;padding:0;border:0;background:var(--field);cursor:zoom-in}
.graph-chart canvas{display:block;width:100%;height:auto;aspect-ratio:3/1}
.graph-empty{margin:0;padding:58px 10px;text-align:center;font-size:12px}
.graph-stats{margin:0;padding:9px 13px 12px;font-size:11px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.lightbox[hidden]{display:none}
.lightbox{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:28px}
.lightbox-backdrop{position:absolute;inset:0;width:100%;height:100%;border:0;background:rgba(0,0,0,.78);cursor:zoom-out}
.lightbox-dialog{position:relative;z-index:1;width:min(96vw,1200px);max-height:92vh;background:var(--panel);border:1px solid var(--line2);border-radius:var(--r);padding:48px 18px 16px;box-shadow:0 24px 80px var(--shadow);overflow:auto}
.lightbox-title{margin:0 0 10px;padding-right:90px;font-size:15px;font-weight:650}
.lightbox-canvas{display:block;width:100%;height:min(62vh,560px)}
.lightbox-dialog .graph-stats{padding:10px 2px 0}
.lightbox-close{position:absolute;top:10px;right:12px;display:inline-flex;gap:6px;align-items:center}
.lightbox-open{overflow:hidden}

/* === channel / verify (standalone card pages) ========================== */
.channel-view{min-height:100vh;display:grid;place-items:center;padding:28px}
.channel-shell{width:min(100%,640px)}
.channel-card{border:1px solid var(--line);background:var(--panel);border-radius:var(--r);box-shadow:0 18px 46px var(--shadow);overflow:hidden}
.channel-topbar{min-height:50px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:var(--panel2)}
.channel-topbar-right{display:flex;align-items:center;gap:10px}
.channel-topbar a{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:12px;font-weight:650}
.channel-topbar a:hover{color:var(--text)}
.channel-topbar a svg{width:14px;height:14px}
.channel-title{padding:22px 24px 6px;display:flex;gap:12px;align-items:flex-start}
.channel-title svg{width:30px;height:30px;color:var(--accent);margin-top:2px}
.channel-title h1{margin:0;font-size:21px;letter-spacing:-.2px}
.channel-title p{margin:6px 0 0;color:var(--muted);font-size:13px}
.channel-body{padding:18px 24px 24px}
.empty-state,.selection-box{margin:0 0 18px;padding:20px;border:1px solid var(--line);background:var(--panel2);border-radius:var(--r);text-align:center}
.empty-state h2,.selection-box h2{font-size:15px;margin:0 0 6px}
.empty-state p,.selection-box p{margin:0 0 16px;color:var(--muted);font-size:13px}
.selection-box{text-align:left}
.client-list{display:grid;gap:7px}
.client-choice{width:100%;display:flex;align-items:center;gap:11px;text-align:left;border:1px solid var(--line);background:var(--field);color:var(--text);padding:10px 12px;border-radius:var(--r)}
.client-choice:hover{border-color:var(--accent)}
.client-choice .avatar{width:32px;height:32px;border-radius:var(--r);background:var(--selected);color:var(--accent2);display:grid;place-items:center;font-weight:800;flex:0 0 auto}
.client-choice .meta{display:flex;flex-direction:column;flex:1;min-width:0}
.client-choice small{color:var(--muted)}
.client-badge{margin:0 0 16px;padding:11px 13px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel2);display:flex;align-items:center;gap:9px;font-size:13px}
.client-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 3px color-mix(in srgb,var(--success) 18%,transparent);flex:0 0 auto}
.client-badge span{color:var(--muted)}

.button-row{display:flex;gap:8px;flex-wrap:wrap}
.button-row .btn{flex:1}
.field{margin-bottom:15px}
.field label{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:650;margin-bottom:6px;color:var(--text)}
.field label svg{width:14px;height:14px;color:var(--muted)}
.field small{display:block;color:var(--subtle);font-size:11px;margin-top:5px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}
.form-grid .wide{grid-column:1/-1}

/* === responsive ========================================================= */
@media(max-width:1060px){
  .cards{grid-template-columns:repeat(2,minmax(140px,1fr))}
  .graphs{grid-template-columns:1fr}
  .graph-chart canvas{aspect-ratio:auto;height:200px}
}
@media(max-width:860px){
  .topbar{grid-template-columns:minmax(64px,auto) 1fr auto}
  #refresh-status{display:none}
}
@media(max-width:520px){
  .brand span{max-width:40vw}
  .header-online .badge{display:none}
  .btn-label{display:none}
  .top-actions .btn{padding:7px 10px}
}
@media(max-width:620px){
  .cards{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .content{padding:18px 14px 36px}
  .lightbox{padding:10px}
  .lightbox-dialog{width:100%;padding:46px 8px 8px}
  .channel-view{padding:0}
  .channel-shell{width:100%}
  .channel-card{min-height:100vh;border-radius:0;border-left:0;border-right:0}
}