:root{
  --bg:#f4f6fa;--surface:#ffffff;--surface-2:#f8fafc;--ink:#0f172a;--ink-2:#475569;--ink-3:#94a3b8;
  --line:#e2e8f0;--line-2:#cbd5e1;--brand:#0b3d6e;--brand-2:#1466b8;--brand-3:#2b8be6;--brand-ink:#e6f0fb;--accent:#f59e0b;--accent-ink:#fff7e6;
  --ok:#15803d;--ok-bg:#dcfce7;--bad:#b91c1c;--bad-bg:#fee2e2;--warn:#b45309;--warn-bg:#fef3c7;--info-bg:#dbeafe;--info:#1d4ed8;
  --r:10px;--shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px -12px rgba(15,23,42,.18);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5}
a{color:var(--brand-2);text-decoration:none}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.01em}
h1{font-size:26px}h2{font-size:18px}h3{font-size:15px}
.muted{color:var(--ink-2)}.tiny{font-size:12px;color:var(--ink-3)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:var(--brand);color:#fff;border-bottom:3px solid var(--accent);height:58px;display:flex;align-items:center;padding:0 20px;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;font-size:17px}
.brand .logo{width:32px;height:32px;border-radius:9px;background:var(--accent);color:var(--brand);display:grid;place-items:center;font-size:17px}
.brand small{font-weight:600;color:#ffd580;font-size:12px;margin-left:2px;letter-spacing:.04em;text-transform:uppercase}
.topbar .spacer{flex:1}
.topbar .nav{display:flex;gap:4px}
.topbar .nav a{padding:8px 14px;border-radius:999px;color:#dbe7f5;font-weight:600}
.topbar .nav a:hover{background:rgba(255,255,255,.12);color:#fff}
.topbar .nav a.active{background:var(--accent);color:var(--brand)}
.topbar .pill.neutral{background:rgba(255,255,255,.12);color:#fff;border-color:transparent}
.topbar .tiny{color:#cfe0f3}
.topbar .btn{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3);color:#fff}
.topbar .btn:hover{background:rgba(255,255,255,.2)}

.wrap{max-width:1280px;margin:0 auto;padding:24px 20px}
.wrap.wide{max-width:1600px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);padding:8px 13px;border-radius:8px;font:inherit;font-weight:500;cursor:pointer;line-height:1;white-space:nowrap}
.btn:hover{background:var(--surface-2);border-color:var(--ink-3)}
.btn.primary{background:var(--brand-2);border-color:var(--brand-2);color:#fff;box-shadow:0 4px 12px -4px rgba(20,102,184,.6)}.btn.primary:hover{background:var(--brand)}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn.ghost{border-color:transparent;background:transparent}.btn.ghost:hover{background:var(--brand-ink)}
.btn.sm{padding:5px 9px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:default}
.btn i{font-size:16px}

/* inputs */
input,select,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line-2);border-radius:8px;padding:8px 10px;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(30,111,184,.15)}
label.f{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--ink-2);font-weight:500}
label.f input,label.f select{width:100%}
.grid{display:grid;gap:14px}
.g3{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}

/* cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.card .hd{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--brand-ink);border-radius:14px 14px 0 0}
.card .hd h2{font-size:15px;color:var(--brand)}
.card .bd{padding:16px 18px}

/* pills */
.pill{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.pill.ok{background:var(--ok-bg);color:var(--ok)}.pill.bad{background:var(--bad-bg);color:var(--bad)}
.pill.warn{background:var(--warn-bg);color:var(--warn)}.pill.info{background:var(--info-bg);color:var(--info)}
.pill.neutral{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.metric{background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--brand-3);border-radius:12px;padding:12px 14px}
.metric .l{font-size:12px;color:var(--ink-2);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.metric .v{font-size:26px;font-weight:700;margin-top:2px;letter-spacing:-.02em;color:var(--brand)}
.metric.ok{border-left-color:var(--ok)}.metric.ok .v{color:var(--ok)}
.metric.bad{border-left-color:var(--bad);background:#fff5f5}.metric.bad .v{color:var(--bad)}

/* tabs */
.tabs{display:flex;gap:6px;margin-bottom:16px;background:var(--brand-ink);padding:6px;border-radius:14px;flex-wrap:wrap}
.tabs button{border:0;background:transparent;padding:10px 16px;font:inherit;font-weight:600;font-size:14px;color:var(--brand);cursor:pointer;border-radius:10px;display:inline-flex;align-items:center;gap:7px}
.tabs button i{font-size:17px}
.tabs button:hover{background:rgba(20,102,184,.12)}
.tabs button.active{background:var(--brand);color:#fff;box-shadow:0 4px 12px -4px rgba(11,61,110,.5)}
.tabpane{display:none}.tabpane.active{display:block}

/* schedule table */
.tblwrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface);max-height:calc(100vh - 330px)}
table.sched{border-collapse:separate;border-spacing:0;width:100%;font-size:13px;min-width:1500px}
table.sched th{position:sticky;top:0;z-index:2;background:var(--brand);color:#fff;font-weight:600;font-size:12px;text-align:left;padding:10px 8px;border-bottom:2px solid var(--accent);white-space:nowrap}
table.sched th.in{background:var(--brand-2);color:#fff}
table.sched th .auto{color:#cfe0f3}
table.sched td{padding:4px 6px;border-bottom:1px solid var(--line);white-space:nowrap;vertical-align:middle}
table.sched tr:hover td{background:#fafcff}
table.sched tr.fail td{background:#fff7f7}
table.sched td.num{text-align:right;font-variant-numeric:tabular-nums}
table.sched td input,table.sched td select{padding:5px 7px;border-radius:6px;width:100%;min-width:60px;border-color:var(--line)}
table.sched td input.short{min-width:52px;width:64px;text-align:right}
table.sched td input.wide{min-width:180px}
table.sched td select.cable{min-width:230px}
table.sched td input:hover,table.sched td select:hover{border-color:var(--line-2)}
table.sched td .rowtools{display:flex;gap:2px;opacity:.35}
table.sched tr:hover .rowtools{opacity:1}
table.sched td .rowtools button{border:0;background:transparent;cursor:pointer;padding:3px;border-radius:6px;color:var(--ink-2)}
table.sched td .rowtools button:hover{background:var(--brand-ink);color:var(--brand)}
.auto{color:var(--ink-3);font-size:11px;margin-left:4px}

/* toolbar */
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.toolbar .spacer{flex:1}

/* cascade tree */
.tree{font-size:13px}
.tree ul{list-style:none;margin:0;padding-left:22px;border-left:1px dashed var(--line-2)}
.tree>ul{padding-left:0;border:0}
.tree li{margin:4px 0;position:relative}
.tree .node{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.tree .node.root{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
.tree .node .edge{color:var(--ink-3);font-size:11.5px}
.tree .node .vd{font-weight:600}
.tree .node .cbl{color:var(--ink-2);font-size:11.5px}
.tree details>summary{cursor:pointer;list-style:none}
.tree details>summary::-webkit-details-marker{display:none}
.tree .caret{color:var(--ink-3);font-size:12px;margin-right:2px}

/* toast & modal */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;z-index:50;opacity:0;transition:.2s;pointer-events:none}
.toast.show{opacity:1}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;place-items:center;z-index:40;padding:20px}
.modal.open{display:grid}
.modal .box{background:var(--surface);border-radius:16px;max-width:760px;width:100%;max-height:90vh;overflow:auto;box-shadow:var(--shadow)}
.modal .box .hd{display:flex;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}
.modal .box .bd{padding:18px}
.modal .box .ft{padding:12px 18px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}

/* landing */
.hero{padding:56px 0 30px;text-align:center}
.hero h1{font-size:38px;line-height:1.15}
.hero p{max-width:640px;margin:14px auto 0;color:var(--ink-2);font-size:16px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px;margin-top:28px}
.tool{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:12px;transition:.15s;position:relative;color:var(--ink)}
.tool:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--line-2)}
.tool .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:var(--brand-ink);color:var(--brand)}
.tool h3{font-size:16px}
.tool p{margin:0;color:var(--ink-2);font-size:13.5px;flex:1}
.tool .ft{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
.tool.soon{opacity:.75}
.tool.soon .ic{background:var(--surface-2);color:var(--ink-3)}
.tool .badge{position:absolute;top:14px;right:14px}
.footer{padding:40px 0 30px;text-align:center;color:var(--ink-3);font-size:12.5px}
.notice{background:var(--info-bg);color:var(--info);border-radius:10px;padding:10px 14px;font-size:13px}
.notice.warn{background:var(--warn-bg);color:var(--warn)}
.notice.bad{background:var(--bad-bg);color:var(--bad)}
.kbd{font-family:ui-monospace,monospace;background:var(--surface-2);border:1px solid var(--line-2);border-radius:5px;padding:0 5px;font-size:12px}
.changes{width:100%;border-collapse:collapse;font-size:13px}
.changes th,.changes td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left}
.changes th{font-size:12px;color:var(--ink-2)}
@media (max-width:700px){.hero h1{font-size:28px}.topbar .nav{display:none}}

/* quick sizing bar */
.quickbar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;background:var(--accent-ink);border:1px solid #fde4b2;border-left:5px solid var(--accent);border-radius:12px;padding:10px 14px;margin-bottom:12px;font-size:13px}
.quickbar .qb-title{font-weight:700;color:#92400e;display:inline-flex;align-items:center;gap:6px}
.quickbar label{display:inline-flex;align-items:center;gap:6px;color:var(--ink-2);font-weight:500}
.quickbar input,.quickbar select{padding:5px 8px;border-radius:7px}
.hero{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 60%,var(--brand-3) 100%);color:#fff;border-radius:20px;padding:56px 28px 44px;margin-top:8px}
.hero h1{color:#fff;font-size:40px}
.hero p{color:#dbe7f5}
.tool .ic{background:var(--brand);color:#fff}
.tool.soon .ic{background:var(--surface-2);color:var(--ink-3)}
.tool h3{color:var(--brand)}

/* panel load cell */
.kwcell{display:flex;align-items:center;gap:6px;white-space:nowrap}
.kwcell .sum{font-weight:700;color:var(--brand);background:var(--brand-ink);padding:4px 8px;border-radius:6px}
.kwcell .dfl{display:inline-flex;align-items:center;gap:3px;font-size:11px;color:var(--ink-2);font-weight:600}
.kwcell .dfl input{width:54px;min-width:54px;padding:4px 5px;font-size:12px}
.kwcell .kwbtn{border:1px solid var(--line-2);background:var(--surface);border-radius:6px;cursor:pointer;padding:3px 7px;font-size:12px;color:var(--brand)}
.kwcell .kwbtn:hover{background:var(--brand-ink)}