:root{
  /* LIGHT THEME */
  --bg:#eef2f8;--bg2:#ffffff;--panel:#ffffff;--panel2:#f6f9fd;--line:#dde5f0;
  --txt:#16233d;--mut:#566583;--dim:#8696b2;
  --zte:#0a6ff0;--cyan:#0a93c4;--ink:#ffffff;
  --acc:#1f7fe0;--ret:#e23a5e;--mob:#8a4fe0;--int:#16a35a;--avl:#d98a00;--nsa:#0a93c4;
  --good:#16a35a;--warn:#c9821a;--bad:#e23a5e;
  --accent:#0a93c4;--accent2:#0a6ff0;
  --shadow:0 14px 36px rgba(30,55,100,.12);
  --soft:0 4px 14px rgba(30,55,100,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,Arial,sans-serif;
  background:radial-gradient(1100px 640px at 85% -12%,#e4ecfa 0,transparent 60%),
             radial-gradient(820px 560px at -8% 8%,#eaf3fb 0,transparent 55%),var(--bg);
  color:var(--txt);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent2);text-decoration:none}
code,.mono{font-family:'JetBrains Mono','Consolas','Courier New',monospace}
::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-track{background:#eaeff7}
::-webkit-scrollbar-thumb{background:#c4d0e2;border-radius:6px}::-webkit-scrollbar-thumb:hover{background:#a7b7d0}

/* top bar */
header.top{position:sticky;top:0;z-index:100;backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(255,255,255,.82));border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(30,55,100,.05)}
.top-inner{max-width:1480px;margin:0 auto;padding:10px 22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo{width:42px;height:42px;border-radius:11px;flex-shrink:0;
  background:conic-gradient(from 200deg,var(--zte),var(--cyan),#7b5bff,var(--zte));
  display:grid;place-items:center;font-weight:800;color:#fff;font-size:.78em;letter-spacing:.5px;box-shadow:0 4px 14px rgba(10,111,240,.35)}
.brand b{font-size:1.04em;letter-spacing:.3px;display:block;line-height:1.15;color:var(--txt)}
.brand span{font-size:.7em;color:var(--mut);letter-spacing:1.5px;text-transform:uppercase}
nav.tabs{display:flex;gap:3px;flex-wrap:wrap;flex:1;justify-content:center}
nav.tabs a{color:var(--mut);padding:7px 11px;border-radius:9px;font-size:.82em;font-weight:600;border:1px solid transparent;transition:.18s;white-space:nowrap}
nav.tabs a:hover{color:var(--txt);background:#eef3fb}
nav.tabs a.on{color:#fff;background:linear-gradient(180deg,var(--accent),var(--accent2));border-color:transparent;box-shadow:0 4px 12px color-mix(in srgb,var(--accent) 35%,transparent)}
.gsearch{position:relative;flex-shrink:0}
.gsearch input{background:#fff;border:1px solid var(--line);color:var(--txt);padding:8px 12px 8px 32px;border-radius:9px;font-size:.84em;width:190px;transition:.2s;box-shadow:var(--soft)}
.gsearch input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent);width:230px}
.gsearch input::placeholder{color:var(--dim)}
.gsearch::before{content:'\2315';position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--dim);font-size:1.1em}

main{max-width:1480px;margin:0 auto;padding:30px 22px 90px}
h1.page{font-size:2.05em;margin:.2em 0 .1em;letter-spacing:-.5px;font-weight:800}
.page-sub{color:var(--mut);font-size:1.02em;max-width:940px;margin-bottom:8px}
h2.sec{font-size:1.42em;margin:44px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--line);font-weight:750;display:flex;align-items:center;gap:11px}
h2.sec .dot{width:11px;height:11px;border-radius:50%;flex-shrink:0;background:var(--accent)}
h3.sub{font-size:1.14em;margin:24px 0 12px;color:var(--txt);font-weight:700}
.kicker{display:inline-block;font-size:.72em;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:4px}

/* page hero */
.hero{border:1px solid var(--line);border-radius:20px;padding:34px 38px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#ffffff 0,#f4f8ff 55%,#eef4ff 100%);box-shadow:var(--shadow)}
.hero::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 300px at 92% -10%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 62%),
            radial-gradient(480px 260px at -5% 110%,color-mix(in srgb,var(--accent2) 12%,transparent),transparent 62%)}
.hero .eyebrow{color:var(--accent);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:.74em;position:relative}
.hero h1{font-size:2.5em;margin:.16em 0;line-height:1.08;font-weight:850;letter-spacing:-1px;position:relative;color:var(--txt)}
.hero h1 .grad{background:linear-gradient(95deg,var(--accent2),var(--accent) 70%,#7b5bff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{color:#3c4d6b;max-width:880px;font-size:1.04em;position:relative}
.hero .meta{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px;position:relative}
.chip{background:#eef3fb;border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:.78em;color:var(--mut);font-weight:600}
.chip b{color:var(--accent2)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:24px 0}
.stat{background:var(--bg2);border:1px solid var(--line);border-radius:15px;padding:18px;position:relative;overflow:hidden;transition:.22s;box-shadow:var(--soft)}
.stat:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent) 45%,var(--line));box-shadow:var(--shadow)}
.stat .n{font-size:2em;font-weight:850;line-height:1;background:linear-gradient(95deg,var(--accent2),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .l{color:var(--mut);font-size:.77em;margin-top:7px;letter-spacing:.4px;text-transform:uppercase;font-weight:600}
.stat .bar{position:absolute;left:0;bottom:0;height:3px;width:100%;background:linear-gradient(90deg,var(--accent2),var(--accent))}

/* hub grid */
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:18px;margin:26px 0}
.cat-card{display:block;border:1px solid var(--line);border-radius:17px;padding:24px;position:relative;overflow:hidden;
  background:var(--bg2);transition:.22s;color:var(--txt);box-shadow:var(--soft)}
.cat-card:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--ca) 55%,var(--line));box-shadow:0 18px 40px rgba(30,55,100,.16)}
.cat-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--ca)}
.cat-card::after{content:'';position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--ca) 16%,transparent),transparent 70%)}
.cat-card .ic{font-size:1.7em;width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb,var(--ca) 12%,#ffffff);border:1px solid color-mix(in srgb,var(--ca) 35%,var(--line));margin-bottom:14px}
.cat-card h3{margin:0 0 6px;font-size:1.18em;color:var(--txt);position:relative}
.cat-card p{margin:0;color:var(--mut);font-size:.9em;position:relative}
.cat-card .nums{display:flex;gap:14px;margin-top:14px;position:relative}
.cat-card .nums span{font-size:.8em;color:var(--dim)}
.cat-card .nums b{color:var(--ca);font-size:1.5em;display:block;font-weight:800;line-height:1}
.cat-card .go{position:absolute;right:20px;bottom:20px;color:var(--ca);font-weight:800;font-size:1.3em;transition:.2s}
.cat-card:hover .go{transform:translateX(4px)}
.grp-h{grid-column:1/-1;font-size:.8em;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--dim);margin:18px 0 -4px;display:flex;align-items:center;gap:10px}
.grp-h::after{content:'';flex:1;height:1px;background:var(--line)}

/* cards / callouts */
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:15px;padding:20px 22px;box-shadow:var(--soft)}
.card h4{margin:0 0 8px;font-size:1.04em;color:var(--txt);display:flex;align-items:center;gap:8px}
.card p{color:var(--mut);font-size:.92em;margin:.4em 0}
.muted{color:var(--mut)}.small{font-size:.85em}
.callout{border-radius:12px;padding:15px 18px;margin:14px 0;border-left:5px solid;background:#f6f9fd;font-size:.94em}
.callout.tip{border-color:var(--good);background:#eafaf1}.callout.warn{border-color:var(--warn);background:#fdf6e7}
.callout.crit{border-color:var(--bad);background:#fdedf0}.callout.info{border-color:var(--accent);background:#eaf5fb}
.callout b{color:var(--txt)}.callout .lbl{font-weight:800;text-transform:uppercase;font-size:.72em;letter-spacing:1px;margin-right:6px}
.tip .lbl{color:var(--good)}.warn .lbl{color:var(--warn)}.crit .lbl{color:var(--bad)}.info .lbl{color:var(--accent)}

/* flow */
.flow{display:flex;flex-wrap:wrap;gap:10px;align-items:stretch;margin:14px 0}
.flow .step{flex:1;min-width:160px;background:var(--bg2);border:1px solid var(--line);border-radius:11px;padding:13px 15px;box-shadow:var(--soft)}
.flow .step .k{font-size:.72em;color:var(--accent);font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.flow .step .v{font-size:.92em;margin-top:4px}
.flow .arr{display:flex;align-items:center;color:var(--dim);font-size:1.3em}

/* tables */
.tbl-wrap{border:1px solid var(--line);border-radius:13px;overflow:hidden;margin:14px 0;background:var(--bg2);box-shadow:var(--soft)}
.tbl-tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:13px 15px;background:#f3f7fc;border-bottom:1px solid var(--line)}
.tbl-tools input[type=text]{background:#fff;border:1px solid var(--line);color:var(--txt);padding:8px 12px;border-radius:8px;font-size:.85em;min-width:230px;flex:1}
.tbl-tools input::placeholder{color:var(--dim)}
.tbl-tools input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}
.tbl-tools select{background:#fff;border:1px solid var(--line);color:var(--txt);padding:8px 10px;border-radius:8px;font-size:.83em;cursor:pointer}
.tbl-tools .count{color:var(--dim);font-size:.8em;margin-left:auto;white-space:nowrap}
.scroller{max-height:620px;overflow:auto}
table{width:100%;border-collapse:collapse;font-size:.86em}
thead th{position:sticky;top:0;background:#eef4fb;color:var(--accent2);text-align:left;padding:11px 13px;font-weight:700;border-bottom:1px solid var(--line);white-space:nowrap;z-index:2;font-size:.92em}
tbody td{padding:10px 13px;border-bottom:1px solid #eef2f8;vertical-align:top}
tbody tr:hover td{background:#eef5fc}
tbody tr:nth-child(even) td{background:#f7fafe}
tbody tr:nth-child(even):hover td{background:#eef5fc}
td.id,.cid{font-family:'JetBrains Mono','Consolas',monospace;color:var(--accent2);font-weight:600;white-space:nowrap}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.74em;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.b-acc{background:#e4f0fd;color:#1565c0}.b-ret{background:#fde6ea;color:#c62847}
.b-mob{background:#f0e8fd;color:#6a30c2}.b-int{background:#e2f6ec;color:#127a44}
.b-avl{background:#fcf1dc;color:#9a6200}.b-nsa{background:#e0f3f9;color:#0a7397}
.b-sa{background:#ece6fd;color:#5a39c2}.b-gray{background:#eef1f6;color:#5a6b85}
.tgt{font-weight:700;color:var(--good)}
.formula{font-family:'JetBrains Mono',monospace;font-size:.82em;color:var(--mut)}
mark{background:#fff1a8;color:#3a2c00;border-radius:3px;padding:0 2px}
.empty{padding:40px;text-align:center;color:var(--dim)}

/* param cards */
.pcard{background:var(--bg2);border:1px solid var(--line);border-radius:13px;padding:16px 18px;box-shadow:var(--soft)}
.pcard .mo{font-family:'JetBrains Mono',monospace;font-size:.74em;color:var(--accent2);font-weight:700}
.pcard h4{margin:3px 0 8px;font-size:1em;color:var(--txt)}
.pcard .kv{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
.pcard .kv span{background:#f1f5fb;border:1px solid var(--line);border-radius:7px;padding:3px 9px;font-size:.76em;color:var(--mut)}
.pcard .kv b{color:var(--txt)}
.pcard .pc{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px;font-size:.82em}
.pcard .pc .pro{border-left:3px solid var(--good);padding-left:9px;color:#117a43}
.pcard .pc .con{border-left:3px solid var(--bad);padding-left:9px;color:#c62847}

/* svg map (used by v1) */
.mapwrap{border:1px solid var(--line);border-radius:15px;background:var(--bg2);padding:10px;margin:18px 0;overflow-x:auto}
svg .lbl-t{fill:var(--txt);font:700 14px Segoe UI;text-anchor:middle}
svg .lbl-s{fill:var(--mut);font:11px Segoe UI;text-anchor:middle}
svg .lbl-c{fill:var(--accent2);font:700 11px JetBrains Mono;text-anchor:middle}

.legend{display:flex;gap:14px;flex-wrap:wrap;margin:8px 0 0}
.legend i{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:5px;vertical-align:middle}
.legend span{font-size:.8em;color:var(--mut)}
.crumbs{display:flex;gap:8px;align-items:center;color:var(--dim);font-size:.84em;margin-bottom:10px}
.crumbs a{color:var(--mut)}.crumbs a:hover{color:var(--accent)}
.prevnext{display:flex;justify-content:space-between;gap:14px;margin-top:40px;flex-wrap:wrap}
.prevnext a{flex:1;min-width:230px;border:1px solid var(--line);border-radius:13px;padding:15px 18px;background:var(--bg2);transition:.2s;color:var(--txt);box-shadow:var(--soft)}
.prevnext a:hover{border-color:var(--accent);transform:translateY(-2px)}
.prevnext .d{font-size:.72em;color:var(--dim);text-transform:uppercase;letter-spacing:1px}
.prevnext .t{font-weight:700;color:var(--txt);margin-top:3px}
.prevnext .nx{text-align:right}

footer{max-width:1480px;margin:0 auto;padding:34px 22px;border-top:1px solid var(--line);color:var(--dim);font-size:.82em;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.toplink{position:fixed;right:22px;bottom:22px;z-index:90;background:var(--accent);color:#fff;border:none;width:46px;height:46px;border-radius:13px;cursor:pointer;font-size:1.3em;font-weight:800;box-shadow:0 10px 26px color-mix(in srgb,var(--accent) 45%,transparent);opacity:0;pointer-events:none;transition:.25s}
.toplink.show{opacity:1;pointer-events:auto}
.view{animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media(max-width:1080px){nav.tabs{order:3;width:100%;justify-content:flex-start}.gsearch input{width:150px}}
@media(max-width:680px){.hero{padding:24px 20px}.hero h1{font-size:1.85em}main{padding:18px 14px 70px}}

/* ---------------- OPTIMIZATION TREE ---------------- */
.opttree{border:1px solid var(--line);border-radius:16px;background:var(--bg2);padding:6px 8px 18px;box-shadow:var(--soft)}
.tree-legend{display:flex;gap:14px;flex-wrap:wrap;align-items:center;padding:14px 14px 8px;border-bottom:1px solid var(--line);margin-bottom:10px}
.tree-legend span{font-size:.78em;color:var(--mut)}
.tree-legend .tree-exp{margin-left:auto;background:#fff;border:1px solid var(--line);color:var(--accent2);padding:7px 14px;border-radius:9px;cursor:pointer;font-weight:700;font-size:.82em;transition:.2s}
.tree-legend .tree-exp:hover{border-color:var(--accent);box-shadow:0 0 12px color-mix(in srgb,var(--accent) 22%,transparent)}
.tree{padding:4px 12px}
.tn-tag{display:inline-block;font-size:.64em;font-weight:800;letter-spacing:.6px;padding:2px 7px;border-radius:6px;text-transform:uppercase;flex-shrink:0}
.tn-kpi{background:#dff1f8;color:#0a7397}.tn-ctr{background:#e4f0fd;color:#1565c0}
.tn-fail{background:#fde6ea;color:#c62847}.tn-tier{background:#fcf1dc;color:#9a6200}
.tn-fix{background:#e2f6ec;color:#127a44}
.tn{margin:3px 0;position:relative}
.tn-kids{margin-left:20px;padding-left:18px;border-left:2px solid var(--line);display:none;animation:fade .25s ease}
.tn.open>.tn-kids{display:block}
.tn-head{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:10px;background:#f7fafe;border:1px solid var(--line);cursor:default;transition:.16s;flex-wrap:wrap}
.tn-has>.tn-head{cursor:pointer}
.tn-has>.tn-head:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line));background:#eef5fc}
.tn-l-kpi>.tn-head{background:linear-gradient(180deg,#eaf6fb,#f3fbfe);border-color:color-mix(in srgb,var(--nsa) 35%,var(--line));padding:12px 14px}
.tn-l-fix>.tn-head{background:#edfaf2;border-color:#bfe6cf}
.tn-l-tier>.tn-head{background:#fdf7ea;border-color:#f0dcae}
.tn-l-fail>.tn-head{background:#fdeef1;border-color:#f3c9d2}
.tn-id{font-family:'JetBrains Mono',monospace;font-size:.78em;color:var(--accent2);font-weight:700;background:#eaf1fb;padding:2px 7px;border-radius:6px;flex-shrink:0}
.tn-l-fail .tn-id{color:#c62847;background:#fbe2e8}
.tn-name{font-size:.92em;flex:1;min-width:160px;color:var(--txt)}
.tn-l-kpi .tn-name{font-weight:700;font-size:1.02em;color:var(--txt)}
.tn-target{font-size:.76em;font-weight:700;color:var(--good);background:#e2f6ec;padding:2px 9px;border-radius:999px;white-space:nowrap}
.tn-tg{margin-left:auto;color:var(--dim);font-size:.85em;transition:.25s;flex-shrink:0}
.tn.open>.tn-head>.tn-tg{transform:rotate(90deg);color:var(--accent)}
.tn-sol{margin:2px 0 4px 12px;padding:10px 14px;border-left:3px solid var(--good);background:#eefaf2;border-radius:0 10px 10px 0;font-size:.86em}
.tn-feat{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:.8em;color:#0f7a42;background:#dff3e7;padding:3px 9px;border-radius:7px;font-weight:700;margin-bottom:6px}
.tn-param{color:#33455f;margin:3px 0}.tn-param b,.tn-verify b{color:var(--accent2)}
.tn-verify{color:var(--mut);margin-top:3px}

/* parameter optimization table */
.paramopt td{vertical-align:top}
.po-def{display:inline-block;font-family:'JetBrains Mono',monospace;font-weight:700;color:#9a6200;background:#fcf1dc;padding:2px 8px;border-radius:7px;font-size:.92em}
.po-rec{display:inline-block;font-weight:700;color:#0f7a42;background:#e2f6ec;padding:2px 8px;border-radius:7px;font-size:.92em}

/* SUCCESS branch in tree */
.tn-ok{background:#dff3e7;color:#0f7a42}
.tn-l-ok>.tn-head{background:#edfaf2;border-color:#bfe6cf}
.tn-l-ok .tn-id{color:#0f7a42;background:#dff3e7}
.tn-oknote{margin:2px 0 4px 12px;padding:9px 13px;border-left:3px solid var(--good);background:#eefaf2;border-radius:0 10px 10px 0;font-size:.84em;color:#2c5743}

/* ===== ANIMATIONS ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s cubic-bezier(.22,1,.36,1),transform .55s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
.flow .step{transition:opacity .5s ease var(--d,0ms),transform .5s ease var(--d,0ms)}
/* tree branch grow on open */
.tn.open>.tn-kids{animation:branchIn .32s cubic-bezier(.22,1,.36,1)}
@keyframes branchIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.tn-l-kpi>.tn-head{position:relative;overflow:hidden}
.tn-l-kpi>.tn-head::after{content:'';position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.5) 50%,transparent 70%);transform:translateX(-100%);animation:sheen 4.5s ease-in-out infinite}
@keyframes sheen{0%,100%{transform:translateX(-120%)}45%,55%{transform:translateX(120%)}}
@media(prefers-reduced-motion:reduce){.tn-l-kpi>.tn-head::after{display:none}}
.hero h1 .grad{background-size:200% auto;animation:gradShift 7s linear infinite}
@keyframes gradShift{to{background-position:200% center}}
@media(prefers-reduced-motion:reduce){.hero h1 .grad{animation:none}}
.stat:hover .n,.cat-card:hover .ic{transition:.2s}
.cat-card:hover .ic{transform:scale(1.08) rotate(-4deg)}

/* ===== FEATURE TRAIL (solution architecture) ===== */
.tn-featn{background:#ece6fd;color:#5a39c2}
.tn-l-featn>.tn-head{background:linear-gradient(180deg,#f1ecfe,#f8f5ff);border-color:#cbbcf2}
.tn-l-featn .tn-name{font-weight:700;color:#4a2da0}
.tn-l-featn .tn-id{color:#5a39c2;background:#ece6fd}
.tn-moves{background:#e4f0fd;color:#1565c0}
.tn-l-moves>.tn-head{background:#f1f7ff;border-color:#cfe0f6}

/* ===== MOBILITY MODE CARDS ===== */
.modes{margin-top:6px}
.modecard{position:relative;overflow:hidden;transition:.25s}
.modecard:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.modecard .mode-ic{font-size:2em;margin-bottom:6px}
.modecard h4{font-size:1.16em;flex-direction:column;align-items:flex-start;gap:1px}
.modecard .mode-sub{font-size:.62em;font-weight:600;color:var(--mut);text-transform:uppercase;letter-spacing:.5px}
.modecard p{font-size:.9em;margin:6px 0 10px}
.modecard .mode-mo,.modecard .mode-watch{font-size:.78em;color:var(--mut);margin-top:5px;border-top:1px solid var(--line);padding-top:6px}
.modecard .mode-mo b,.modecard .mode-watch b{color:var(--accent2);font-size:.85em;letter-spacing:.3px}
.modecard .mode-mo{font-family:'JetBrains Mono',monospace;font-size:.72em}

/* ===== KPI HEALTH CALCULATOR ===== */
.calc h4{justify-content:space-between}
.calc-bench{font-size:.72em;font-weight:700;color:var(--mut);background:#f1f5fb;border:1px solid var(--line);border-radius:999px;padding:2px 9px}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:10px 0}
.calc-in{display:flex;flex-direction:column;gap:3px;font-size:.74em;color:var(--mut)}
.calc-in span{display:flex;justify-content:space-between;gap:6px;align-items:baseline}
.calc-in code{font-size:.86em;color:var(--accent2)}
.calc-in input{background:#fff;border:1px solid var(--line);border-radius:7px;padding:6px 8px;font-size:.92em;color:var(--txt);font-family:'JetBrains Mono',monospace}
.calc-in input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}
.calc-out{border-top:1px solid var(--line);margin-top:6px;padding-top:10px}
.calc-val{font-size:1.7em;font-weight:850;color:var(--txt)}
.calc-val.grade-good{color:#117a43}.calc-val.grade-warn{color:#9a6200}.calc-val.grade-bad{color:#c62847}
.calc-grade{font-size:.42em;font-weight:800;vertical-align:middle;padding:3px 9px;border-radius:999px;letter-spacing:.5px;margin-left:6px}
.gr-good{background:#e2f6ec;color:#117a43}.gr-warn{background:#fcf1dc;color:#9a6200}.gr-bad{background:#fde6ea;color:#c62847}
.calc-blame{margin-top:6px;line-height:1.4}.calc-blame code{color:var(--accent2)}

/* ===== ANIMATED CALL-FLOW ===== */
.cf-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.cf-bar button{background:var(--accent);color:#fff;border:none;border-radius:9px;padding:8px 16px;font-weight:700;font-size:.86em;cursor:pointer;transition:.2s}
.cf-bar button.cf-all{background:#fff;color:var(--accent2);border:1px solid var(--line)}
.cf-bar button:hover{filter:brightness(1.05);box-shadow:0 4px 12px color-mix(in srgb,var(--accent) 30%,transparent)}
.cf-step-note{font-size:.86em;color:var(--mut)}.cf-step-note code{color:var(--accent2)}
.cf-wrap{border:1px solid var(--line);border-radius:14px;background:var(--bg2);padding:10px 6px;overflow-x:auto;box-shadow:var(--soft)}
.cf-life{stroke:#d3deec;stroke-width:1.5;stroke-dasharray:4 5}
.cf-actor{fill:#eef4fb;stroke:var(--line);stroke-width:1}
.cf-actor-t{fill:var(--txt);font:700 12px Segoe UI;text-anchor:middle}
.cf-arrow{stroke:var(--accent2);stroke-width:2}
.cf-msg{fill:var(--txt);font:600 12px Segoe UI;text-anchor:middle}
.cf-cc{fill:var(--accent2);font:700 10px 'JetBrains Mono';text-anchor:middle}
.cf-step{opacity:.18;transition:opacity .4s ease}
.cf-step.on{opacity:1}
.cf-step.on .cf-arrow{stroke-width:2.6}
@media(prefers-reduced-motion:reduce){.cf-step{opacity:1;transition:none}}

/* ===== OMNI-SEARCH OVERLAY ===== */
.omni{position:fixed;inset:0;z-index:200;background:rgba(20,35,60,.34);backdrop-filter:blur(3px);display:none;align-items:flex-start;justify-content:center;padding-top:9vh}
.omni.on{display:flex;animation:omniFade .18s ease}
@keyframes omniFade{from{opacity:0}to{opacity:1}}
.omni-box{width:min(680px,92vw);background:var(--bg2);border:1px solid var(--line);border-radius:16px;box-shadow:0 30px 80px rgba(20,40,80,.35);overflow:hidden;max-height:78vh;display:flex;flex-direction:column}
.omni-inwrap{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
.omni-ic{color:var(--dim);font-size:1.3em}
.omni-inwrap input{flex:1;border:none;outline:none;background:transparent;font-size:1.05em;color:var(--txt)}
.omni-inwrap kbd{font-size:.7em;color:var(--dim);border:1px solid var(--line);border-radius:5px;padding:2px 6px;background:#f3f7fc}
.omni-res{overflow-y:auto}
.omni-grp{font-size:.7em;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--dim);padding:10px 16px 4px}
.omni-grp span{color:var(--accent2)}
.omni-item{display:flex;align-items:center;gap:10px;padding:8px 16px;color:var(--txt);border-left:3px solid transparent}
.omni-item:hover{background:#eef5fc;border-left-color:var(--accent)}
.omni-item code{font-size:.8em;color:var(--accent2);font-weight:700;min-width:96px}
.omni-item .omni-n{flex:1;font-size:.9em}
.omni-item .omni-s{font-size:.74em;color:var(--dim);max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.omni-empty{padding:30px 16px;text-align:center;color:var(--dim);font-size:.9em}

/* ===== KPI MIND MAP ===== */
.mm-open-link{margin-left:auto;font-size:.6em;font-weight:700;background:color-mix(in srgb,var(--accent) 14%,#fff);border:1px solid color-mix(in srgb,var(--accent) 40%,var(--line));color:var(--accent2);padding:5px 12px;border-radius:999px;white-space:nowrap}
.mm-open-link:hover{background:color-mix(in srgb,var(--accent) 22%,#fff)}
.mm-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0 12px}
.mm-toolbar button{background:#fff;border:1px solid var(--line);color:var(--accent2);font-weight:700;font-size:.84em;padding:8px 14px;border-radius:9px;cursor:pointer;transition:.18s}
.mm-toolbar button:hover{border-color:var(--accent);box-shadow:0 3px 10px color-mix(in srgb,var(--accent) 20%,transparent)}
.mm-legend{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-left:auto;font-size:.78em;color:var(--mut)}
.mm-legend i{width:11px;height:11px;border-radius:3px;display:inline-block;margin-right:-4px}
.mm-legend i.mm-kpi{background:#0a93c4}.mm-legend i.mm-ctr{background:#1565c0}.mm-legend i.mm-ok{background:#16a35a}.mm-legend i.mm-fail{background:#e23a5e}.mm-legend i.mm-tier{background:#d98a00}.mm-legend i.mm-fix{background:#5a39c2}
.mm-stage{display:grid;grid-template-columns:1fr 318px;gap:14px;height:640px}
#mm-svg{width:100%;height:100%;border:1px solid var(--line);border-radius:15px;background:radial-gradient(900px 480px at 30% 0,#f3f8ff,transparent),var(--bg2);box-shadow:var(--soft);cursor:grab;touch-action:none}
#mm-svg:active{cursor:grabbing}
.mm-link{fill:none;stroke:#c4d3e6;stroke-width:1.6}
.mm-node{cursor:pointer}
.mm-node rect{fill:#fff;stroke:var(--line);stroke-width:1.4;transition:.12s}
.mm-node text{fill:var(--txt);font:600 12px Segoe UI;pointer-events:none}
.mm-node .mm-tgl circle{fill:#eef3fb;stroke:var(--line)}
.mm-node .mm-tgl text{fill:var(--accent2);font:800 12px Segoe UI}
.mm-node:hover rect{stroke:var(--accent);filter:drop-shadow(0 3px 7px rgba(20,40,80,.14))}
.mm-node.sel rect{stroke-width:2.4}
.mm-node.mm-root rect{fill:#0e1d34;stroke:#0e1d34}.mm-node.mm-root text{fill:#fff;font-weight:800}
.mm-node.mm-kpi rect{fill:#eaf6fb;stroke:#0a93c4}
.mm-node.mm-ctr rect{fill:#eef4fd;stroke:#5b9be0}
.mm-node.mm-ok rect{fill:#eafaf1;stroke:#16a35a}
.mm-node.mm-fail rect{fill:#fdeef1;stroke:#e23a5e}
.mm-node.mm-tier rect{fill:#fdf7ea;stroke:#d98a00}
.mm-node.mm-fix rect{fill:#f1ecfe;stroke:#7a5bd0}
.mm-detail{border:1px solid var(--line);border-radius:15px;background:var(--bg2);box-shadow:var(--soft);padding:16px 18px;overflow-y:auto}
.mm-d-tag{display:inline-block;font-size:.64em;font-weight:800;letter-spacing:.6px;text-transform:uppercase;padding:3px 9px;border-radius:6px;color:#fff;margin-bottom:8px}
.mm-d-tag.mm-kpi{background:#0a93c4}.mm-d-tag.mm-ctr{background:#1565c0}.mm-d-tag.mm-ok{background:#16a35a}.mm-d-tag.mm-fail{background:#e23a5e}.mm-d-tag.mm-tier{background:#d98a00}.mm-d-tag.mm-fix{background:#5a39c2}.mm-d-tag.mm-root{background:#0e1d34}
.mm-detail h3{margin:0 0 10px;font-size:1.02em;color:var(--txt);line-height:1.3}
.mm-detail h3 code{font-family:'JetBrains Mono',monospace;font-size:.82em;color:var(--accent2);background:#eaf1fb;padding:1px 6px;border-radius:5px}
.mm-d-row{font-size:.86em;margin:9px 0;padding-top:9px;border-top:1px solid var(--line)}
.mm-d-row b{display:block;font-size:.82em;text-transform:uppercase;letter-spacing:.4px;color:var(--mut);margin-bottom:3px}
.mm-d-row code{color:var(--accent2);font-size:.92em}
.mm-d-tbl{width:100%;border-collapse:collapse;font-size:.8em;margin-top:6px}
.mm-d-tbl th{text-align:left;color:var(--accent2);padding:5px 6px;border-bottom:1px solid var(--line);font-size:.92em}
.mm-d-tbl td{padding:5px 6px;border-bottom:1px solid #eef2f8;vertical-align:top}
.mm-d-tbl td code{font-size:.86em}
@media(max-width:820px){.mm-stage{grid-template-columns:1fr;height:auto}#mm-svg{height:460px}.mm-detail{max-height:340px}}

/* ===== OPTIMIZATION PARAMETER WORKBOOK ===== */
.owb-topic{border:1px solid var(--line);border-radius:14px;margin:12px 0;overflow:hidden;background:var(--bg2);box-shadow:var(--soft)}
.owb-topic>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:15px 18px;background:linear-gradient(180deg,#f3f8ff,#fbfdff);font-weight:700;transition:.18s}
.owb-topic>summary::-webkit-details-marker{display:none}
.owb-topic>summary:hover{background:#eaf3fe}
.owb-num{width:28px;height:28px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:.9em;flex-shrink:0}
.owb-ttl{font-size:1.05em;color:var(--txt)}
.owb-count{margin-left:auto;font-size:.74em;font-weight:600;color:var(--mut);background:#eef3fb;border:1px solid var(--line);border-radius:999px;padding:3px 11px}
.owb-tg{color:var(--dim);font-size:.85em;transition:.25s}
.owb-topic[open]>summary .owb-tg{transform:rotate(180deg);color:var(--accent)}
.owb-body{animation:branchIn .3s cubic-bezier(.22,1,.36,1)}
.owb-tbl{font-size:.85em}
.owb-tbl thead th{background:#eef4fb;color:var(--accent2)}
.owb-tbl td{vertical-align:top}
.owb-pname{font-weight:600;color:var(--txt);margin:2px 0}
.owb-rec{display:inline-block;font-weight:700;color:#0a4ea0;background:#e4f0fd;border:1px solid #bcd9f7;padding:3px 9px;border-radius:7px;font-size:.92em}
.owb-trick{color:#0f7a42;margin-top:4px;line-height:1.4}
.owb-kpi{color:var(--mob);font-weight:600;white-space:normal;max-width:120px}
.owb-tbl tr.owb-restrict td{background:#fdf6e7}
.owb-tbl tr.owb-restrict .owb-rec{background:#fcf1dc;border-color:#f0dcae;color:#9a6200}
.owb-restrict-key{background:#fdf6e7;border:1px solid #f0dcae;color:#9a6200;padding:1px 7px;border-radius:5px;font-weight:700;font-size:.92em}

/* ===== Animated EN-DC mobility signalling sequences ===== */
.seq-wrap{border:1px solid var(--line);border-radius:18px;padding:18px;background:
  radial-gradient(560px 240px at 88% -20%,color-mix(in srgb,var(--accent) 12%,transparent),transparent 60%),var(--panel);
  box-shadow:0 10px 30px rgba(30,55,100,.07);margin-top:6px}
.seq-chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:14px}
.seq-chip{display:inline-flex;flex-direction:column;align-items:flex-start;gap:1px;cursor:pointer;
  background:#eef4fb;border:1px solid var(--line);border-radius:11px;padding:8px 13px;font-size:.86em;font-weight:700;color:var(--txt);
  transition:transform .18s,box-shadow .2s,background .2s,border-color .2s}
.seq-chip em{font-style:normal;font-weight:600;font-size:.78em;color:var(--mut);letter-spacing:.2px}
.seq-chip:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(30,55,100,.12)}
.seq-chip.on{background:linear-gradient(180deg,var(--accent2),var(--accent));border-color:transparent;color:#fff;box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 38%,transparent)}
.seq-chip.on em{color:rgba(255,255,255,.85)}
.seq-head{margin:4px 2px 12px}
.seq-head b{font-size:1.06em;color:var(--txt)}
.seq-head .seq-kpi{display:inline-block;margin-left:8px;font-size:.74em;font-weight:700;color:var(--accent2);background:#e4f0fd;border:1px solid #bcd9f7;border-radius:999px;padding:2px 10px;vertical-align:middle}
.seq-head p{margin:7px 0 0;color:var(--mut);line-height:1.5;font-size:.92em}
.seq-head b+.seq-kpi+p b{color:var(--txt)}
.seq-stage{overflow-x:auto;border-radius:12px;background:linear-gradient(180deg,#fafcff,#f3f8fe);border:1px solid var(--line);padding:6px}
.seq-svg{width:100%;min-width:560px;height:auto;display:block}
.seq-life{stroke:#cdd9ea;stroke-width:1.4;stroke-dasharray:3 5}
.seq-actor rect{fill:#fff;stroke:var(--accent);stroke-width:1.5;filter:drop-shadow(0 3px 7px rgba(30,55,100,.12))}
.seq-actor text{fill:var(--txt);font-weight:750;font-size:12.5px;font-family:inherit}
.seq-msg .seq-line{stroke-width:2.4;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset .55s ease}
.seq-msg.on .seq-line{stroke-dashoffset:0}
.seq-msg .seq-arrow,.seq-msg .seq-lbl,.seq-msg .seq-nbox,.seq-msg .seq-ntxt{opacity:0;transition:opacity .3s ease .32s}
.seq-msg.on .seq-arrow,.seq-msg.on .seq-lbl,.seq-msg.on .seq-nbox,.seq-msg.on .seq-ntxt{opacity:1}
.seq-lbl{font-size:11.5px;font-weight:600;fill:var(--txt);font-family:inherit}
.seq-spark{opacity:0}
.seq-ctrl .seq-line,.seq-ctrl{}
.seq-ctrl{stroke:none}
/* kinds */
.seq-ctrl-c{}
.seq-msg.seq-ctrl .seq-line,.seq-msg.seq-ctrl .seq-arrow{stroke:#0a6ff0}
.seq-msg.seq-ctrl .seq-arrow{fill:#0a6ff0}
.seq-msg.seq-ctrl .seq-spark{fill:#0a6ff0}
.seq-msg.seq-x2 .seq-line{stroke:#7b5bff}
.seq-msg.seq-x2 .seq-arrow{fill:#7b5bff;stroke:#7b5bff}
.seq-msg.seq-x2 .seq-spark{fill:#7b5bff}
.seq-msg.seq-x2 .seq-line{stroke-dasharray:6 4 !important}
.seq-msg.seq-x2.on .seq-line{stroke-dasharray:1;stroke-dashoffset:0}
.seq-msg.seq-ok .seq-line{stroke:#16a34a;stroke-width:3}
.seq-msg.seq-ok .seq-arrow{fill:#16a34a;stroke:#16a34a}
.seq-msg.seq-ok .seq-spark{fill:#16a34a}
.seq-msg.seq-ok .seq-lbl{fill:#0f7a42;font-weight:750}
.seq-nbox{fill:#fff8e8;stroke:#f0dcae;stroke-width:1.3}
.seq-ntxt{fill:#9a6200;font-size:11px;font-weight:700;font-family:inherit}
.seq-ctrl{margin-top:14px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.seq-play{cursor:pointer;border:none;border-radius:10px;padding:9px 18px;font-weight:750;font-size:.9em;color:#fff;
  background:linear-gradient(180deg,var(--accent2),var(--accent));box-shadow:0 6px 16px color-mix(in srgb,var(--accent) 34%,transparent);transition:transform .15s,box-shadow .2s}
.seq-play:hover{transform:translateY(-2px);box-shadow:0 9px 22px color-mix(in srgb,var(--accent) 42%,transparent)}
.seq-legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.78em;color:var(--mut);font-weight:600}
.seq-legend .lg{display:inline-flex;align-items:center;gap:6px}
.seq-legend .lg::before{content:"";width:16px;height:3px;border-radius:2px;display:inline-block}
.seq-legend .lg-ctrl::before{background:#0a6ff0}
.seq-legend .lg-x2::before{background:#7b5bff}
.seq-legend .lg-note::before{background:#f0c869}
.seq-legend .lg-ok::before{background:#16a34a;height:4px}
@media(prefers-reduced-motion:reduce){
  .seq-msg .seq-line{transition:none}
  .seq-msg .seq-arrow,.seq-msg .seq-lbl,.seq-msg .seq-nbox,.seq-msg .seq-ntxt{transition:none}
}

/* ===== Live Mobility Optimization Lab ===== */
.lab-wrap{border:1px solid var(--line);border-radius:18px;padding:18px;background:
  radial-gradient(560px 240px at 12% -20%,color-mix(in srgb,var(--accent) 12%,transparent),transparent 60%),var(--panel);
  box-shadow:0 10px 30px rgba(30,55,100,.07)}
.lab-presets{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin-bottom:14px}
.lab-plabel{font-size:.74em;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--mut);margin-right:2px}
.lab-preset{cursor:pointer;border:1px solid var(--line);background:#eef4fb;border-radius:10px;padding:7px 13px;font-weight:700;font-size:.84em;color:var(--txt);transition:transform .15s,box-shadow .2s,background .2s,border-color .2s}
.lab-preset:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(30,55,100,.12)}
.lab-preset.on{background:linear-gradient(180deg,var(--accent2),var(--accent));border-color:transparent;color:#fff;box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 38%,transparent)}
.lab-grid{display:grid;grid-template-columns:300px 1fr;gap:18px}
@media(max-width:860px){.lab-grid{grid-template-columns:1fr}}
.lab-controls{display:flex;flex-direction:column;gap:15px}
.lab-row{display:flex;flex-direction:column;gap:6px}
.lab-rl{display:flex;justify-content:space-between;align-items:baseline;font-size:.86em;font-weight:600;color:var(--txt)}
.lab-rl b{font-family:ui-monospace,monospace;font-size:.95em;color:var(--accent2);background:#e4f0fd;border:1px solid #bcd9f7;border-radius:6px;padding:1px 8px}
.lab-row input[type=range]{width:100%;accent-color:var(--accent);height:5px}
.lab-rd{font-size:.74em;color:#b06a00;font-weight:600;min-height:.9em}
.lab-note{font-size:.78em;color:var(--mut);line-height:1.5;background:#f3f8fe;border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-top:2px}
.lab-note b{color:var(--txt)}
#lab-margin{color:var(--accent2)}
.lab-stage{min-width:0}
.lab-canvas{width:100%;border:1px solid var(--line);border-radius:12px;background:linear-gradient(180deg,#fafcff,#f3f8fe);display:block}
.lab-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:12px}
@media(max-width:560px){.lab-stats{grid-template-columns:repeat(2,1fr)}}
.lab-stat{border:1px solid var(--line);border-radius:11px;padding:9px 8px;text-align:center;background:var(--panel2)}
.lab-stat .v{font-size:1.5em;font-weight:800;color:var(--txt);font-variant-numeric:tabular-nums;line-height:1.1}
.lab-stat .k{font-size:.66em;font-weight:700;letter-spacing:.3px;text-transform:uppercase;color:var(--mut);margin-top:3px}
.lab-stat.bad .v{color:#c0392b}.lab-stat.good .v{color:#16a34a}
.lab-stat.score{background:linear-gradient(180deg,#fff,#eef4fb);border-width:1.5px}
.lab-stat.score[data-band=g]{border-color:#7fd0a0}.lab-stat.score[data-band=g] .v{color:#16a34a}
.lab-stat.score[data-band=a]{border-color:#f0cd7a}.lab-stat.score[data-band=a] .v{color:#c98a00}
.lab-stat.score[data-band=r]{border-color:#eaa}.lab-stat.score[data-band=r] .v{color:#c0392b}
.lab-stat.score .v{transition:color .3s}

/* ===== EN-DC end-to-end config: pipeline · checklist · verification ===== */
.pipe{display:flex;gap:0;align-items:stretch;overflow-x:auto;padding:6px 2px 12px}
.pipe-step{flex:0 0 auto;width:150px;border:1px solid var(--line);border-radius:13px;background:var(--panel2);
  padding:12px 12px 11px;position:relative;opacity:.5;transition:opacity .4s,box-shadow .4s,border-color .4s,transform .3s}
.pipe-step.on{opacity:1;border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:0 6px 18px rgba(30,55,100,.1)}
.pipe-step.lit{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 10px 26px color-mix(in srgb,var(--accent) 32%,transparent)}
.pipe-num{position:absolute;top:-9px;left:12px;width:22px;height:22px;border-radius:50%;background:#fff;border:1.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:.72em;font-weight:800;color:var(--mut)}
.pipe-step.on .pipe-num{background:linear-gradient(180deg,var(--accent2),var(--accent));border-color:transparent;color:#fff}
.pipe-ic{font-size:1.5em;margin:4px 0 6px}
.pipe-t{font-weight:750;font-size:.9em;color:var(--txt);line-height:1.2}
.pipe-mo{font-family:ui-monospace,monospace;font-size:.72em;color:var(--accent2);margin-top:4px;word-break:break-word}
.pipe-link{flex:0 0 auto;align-self:center;width:26px;height:3px;border-radius:2px;background:var(--line);position:relative;overflow:hidden}
.pipe-link::after{content:"";position:absolute;inset:0;width:0;background:linear-gradient(90deg,var(--accent2),var(--accent));transition:width .5s ease}
.pipe-link.on::after{width:100%}
ul.cfg-check{margin:6px 0 0;padding-left:18px;line-height:1.7}
ul.cfg-check li{margin:2px 0}
ul.cfg-check b{color:var(--txt)}
.cfg-verify{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:820px){.cfg-verify{grid-template-columns:1fr}}
.cfg-vcard{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:11px;padding:12px 14px;background:var(--panel2)}
.cfg-vid{font-family:ui-monospace,monospace;font-weight:800;color:var(--accent2);font-size:.92em}
.cfg-vn{font-weight:700;color:var(--txt);margin:3px 0 5px;font-size:.92em}
.cfg-vd{color:var(--mut);font-size:.84em;line-height:1.45}

/* ===== EN-DC plain-language explainer + diagrams ===== */
.exp-intro{display:grid;grid-template-columns:1.45fr 1fr;gap:16px;border:1px solid var(--line);border-radius:16px;padding:18px;background:
  radial-gradient(520px 220px at 90% -20%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 60%),var(--panel)}
@media(max-width:820px){.exp-intro{grid-template-columns:1fr}}
.exp-analogy p{margin:0 0 10px;line-height:1.6;color:var(--txt)}
.exp-analogy b{color:var(--txt)}
.exp-roles{display:flex;flex-direction:column;gap:10px}
.exp-role{border:1px solid var(--line);border-radius:12px;padding:11px 13px;background:var(--panel2)}
.exp-role.mn{border-left:4px solid #0a6ff0}.exp-role.sn{border-left:4px solid #7b5bff}
.exp-rh{font-weight:750;font-size:.92em;color:var(--txt);margin-bottom:4px}
.exp-role p{margin:0;font-size:.85em;line-height:1.5;color:var(--mut)}
.exp-diag{border:1px solid var(--line);border-radius:16px;padding:16px 18px;background:var(--panel);margin-bottom:14px;box-shadow:0 8px 24px rgba(30,55,100,.06)}
.exp-dh{font-weight:750;font-size:1em;color:var(--txt);margin-bottom:8px}
.diag-svg{width:100%;height:auto;display:block;background:linear-gradient(180deg,#fafcff,#f3f8fe);border:1px solid var(--line);border-radius:12px;padding:6px}
.exp-cap{margin:10px 2px 0;font-size:.86em;line-height:1.55;color:var(--mut)}
.exp-cap b{color:var(--txt)}
/* architecture diagram */
.d-ue{fill:#fff;stroke:#0a84ff;stroke-width:2}.d-ue-scr{fill:#eaf3fe}.d-ue-b{fill:#0a84ff}
.d-tower.mn{fill:#0a6ff0}.d-tower.sn{fill:#7b5bff}.d-mast{stroke-width:3}.d-mast.mn{stroke:#0a6ff0}.d-mast.sn{stroke:#7b5bff}
.d-box{fill:#fff;stroke-width:2}.d-box.mn{stroke:#0a6ff0}.d-box.sn{stroke:#7b5bff}
.d-core{fill:#fff;stroke:#5b6b80;stroke-width:2}
.d-bx{font:700 13px system-ui;fill:var(--txt);text-anchor:middle}.d-bx.core{font-size:12px}
.d-lbl{font:700 12px system-ui;fill:var(--txt);text-anchor:middle}.d-sub{font:600 10px system-ui;fill:#7a879a;text-anchor:middle}.d-sub.core{fill:#7a879a}
.d-role{font:700 10px system-ui;text-anchor:middle}.d-role.mn{fill:#0a6ff0}.d-role.sn{fill:#7b5bff}
.d-link{stroke-width:2.4}.d-link.mn{stroke:#0a6ff0}.d-link.sn{stroke:#7b5bff}.d-link.x2{stroke:#e08a00;stroke-dasharray:6 5}.d-link.core{stroke:#9fb2c9}.d-link.dash{stroke-dasharray:5 4}
.d-llbl{font:600 10px system-ui;text-anchor:middle}.d-llbl.mn{fill:#0a6ff0}.d-llbl.sn{fill:#7b5bff}.d-llbl.x2{fill:#b06a00;font-weight:700}.d-llbl.core2{fill:#7a879a;text-anchor:middle}
/* bearer diagram */
.b-title{font:750 13px system-ui;fill:var(--txt);text-anchor:middle}.b-sub{font:600 10px system-ui;fill:#7a879a;text-anchor:middle}
.b-core{fill:#eef4fb;stroke:#9fb2c9;stroke-width:1.5}.b-pdcp{fill:#fff;stroke-width:2}.b-pdcp.mn{stroke:#0a6ff0}.b-pdcp.sn{stroke:#7b5bff}
.b-rlc{fill:#fff;stroke-width:1.8}.b-rlc.mn{stroke:#0a6ff0}.b-rlc.sn{stroke:#7b5bff}
.b-t{font:700 11px system-ui;fill:var(--txt);text-anchor:middle}
.b-arr{stroke:#9fb2c9;stroke-width:2}.b-arr.mn{stroke:#0a6ff0}.b-arr.sn{stroke:#7b5bff}
.b-radio{font:700 11px system-ui;text-anchor:middle}.b-radio.mn{fill:#0a6ff0}.b-radio.sn{fill:#7b5bff}
/* explainer cards */
.exp-cards{display:grid;grid-template-columns:1fr 1fr;gap:11px}
@media(max-width:760px){.exp-cards{grid-template-columns:1fr}}
.exp-card{border:1px solid var(--line);border-radius:13px;background:var(--panel2);overflow:hidden;transition:box-shadow .2s,border-color .2s}
.exp-card[open]{box-shadow:0 8px 22px rgba(30,55,100,.09);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.exp-card summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:11px;padding:12px 14px}
.exp-card summary::-webkit-details-marker{display:none}
.exp-num{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:linear-gradient(180deg,var(--accent2),var(--accent));color:#fff;font-weight:800;font-size:.82em;display:flex;align-items:center;justify-content:center}
.exp-ic{font-size:1.25em}
.exp-ct{display:flex;flex-direction:column;min-width:0}
.exp-ct b{font-size:.93em;color:var(--txt);line-height:1.2}
.exp-ct em{font-style:normal;font-size:.82em;color:var(--mut);margin-top:2px;line-height:1.35}
.exp-body{padding:0 14px 13px 51px}
.exp-body p{margin:8px 0 0;font-size:.86em;line-height:1.55;color:var(--txt)}
.exp-tag{display:inline-block;font-size:.68em;font-weight:800;letter-spacing:.4px;text-transform:uppercase;padding:2px 8px;border-radius:6px;margin-right:7px;vertical-align:1px}
.exp-tag.why{background:#e4f0fd;color:#0a4ea0}.exp-tag.fail{background:#fdeaea;color:#b3322a}

/* ===== commissioning validator ===== */
.vd-wrap{border:1px solid var(--line);border-radius:16px;padding:18px;background:var(--panel);box-shadow:0 8px 24px rgba(30,55,100,.06)}
.vd-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px}
@media(max-width:760px){.vd-grid{grid-template-columns:1fr}}
.vd-row{display:flex;align-items:center;gap:10px;font-size:.88em;color:var(--txt);padding:6px 0;border-bottom:1px dashed var(--line)}
.vd-row .vd-l{flex:1;font-weight:600}
.vd-row input[type=checkbox]{width:17px;height:17px;accent-color:var(--accent);cursor:pointer}
.vd-row select{border:1px solid var(--line);border-radius:8px;padding:5px 9px;font-size:.92em;background:#fff;color:var(--txt);font-weight:600;cursor:pointer}
.vd-row.vd-slider{flex-direction:column;align-items:stretch;gap:5px}
.vd-row.vd-slider input{width:100%;accent-color:var(--accent)}
.vd-row.vd-slider .vd-l b{color:var(--accent2);font-family:ui-monospace,monospace}
.vd-status{margin-top:16px;border-radius:13px;padding:16px 18px;border:1.5px solid;transition:.25s}
.vd-status[data-band=ok]{background:#eafaf0;border-color:#7fd0a0}
.vd-status[data-band=warn]{background:#fdf6e7;border-color:#f0cd7a}
.vd-status[data-band=fail]{background:#fdeced;border-color:#eaa}
.vd-head{font-weight:800;font-size:1.08em}
.vd-status[data-band=ok] .vd-head{color:#16a34a}.vd-status[data-band=warn] .vd-head{color:#b3801a}.vd-status[data-band=fail] .vd-head{color:#c0392b}
.vd-detail{margin-top:6px;font-size:.9em;line-height:1.5;color:var(--txt)}
.vd-fix{margin-top:8px;font-size:.86em;font-weight:700;color:var(--accent2)}
/* ===== MML worksheet ===== */
.mml-wrap{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--panel)}
.mml-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:var(--panel2);border-bottom:1px solid var(--line);font-size:.85em;color:var(--mut);font-weight:600}
.mml-bar b{color:var(--accent2)}
.mml-copy{cursor:pointer;border:none;border-radius:8px;padding:6px 13px;font-weight:700;font-size:.92em;color:#fff;background:linear-gradient(180deg,var(--accent2),var(--accent));transition:transform .15s}
.mml-copy:hover{transform:translateY(-1px)}
.mml-pre{margin:0;max-height:380px;overflow:auto;padding:14px 16px;font:600 12.5px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;color:#1d3a5f;background:linear-gradient(180deg,#fbfdff,#f4f8fd);white-space:pre}
.mml-pre::selection{background:#cfe4fb}
.mml-note{margin:0;padding:11px 14px;font-size:.8em;line-height:1.5;color:#9a6200;background:#fdf6e7;border-top:1px solid #f0dcae}
.mml-note b{color:#7a4e00}

/* ===== EN-DC KPI optimization page ===== */
.kx-fams{display:grid;grid-template-columns:repeat(5,1fr);gap:11px}
@media(max-width:900px){.kx-fams{grid-template-columns:repeat(2,1fr)}}
.kx-fam{border:1px solid var(--line);border-top:4px solid var(--fc);border-radius:13px;padding:13px;background:var(--panel2)}
.kx-fic{font-size:1.6em}.kx-fn{font-weight:750;color:var(--txt);margin-top:3px}
.kx-fc-n{font-size:.8em;color:var(--mut);margin:2px 0 6px}.kx-fc-n b{color:var(--fc);font-size:1.5em}
.kx-fd{font-size:.8em;line-height:1.45;color:var(--mut)}
/* throughput chain */
.tchain-svg{background:linear-gradient(180deg,#fafcff,#f3f8fe)}
.tc-box{fill:#fff;stroke:#7b5bff;stroke-width:1.6}
.tc-t{font:750 12px system-ui;fill:var(--txt);text-anchor:middle}
.tc-id{font:700 11px ui-monospace,monospace;fill:#6a4bd6;text-anchor:middle}
.tc-d{font:500 9px system-ui;fill:#7a879a;text-anchor:middle}
.tc-arr{fill:#b9a7f0}
.kx-lev{border:1px solid var(--line);border-radius:13px;overflow:hidden;margin-top:12px}
.kx-lev-h{background:var(--panel2);border-bottom:1px solid var(--line);padding:9px 14px;font-weight:700;font-size:.85em;color:var(--mut)}
.kx-lr{display:grid;grid-template-columns:1.1fr 1.6fr .7fr;gap:12px;padding:9px 14px;border-bottom:1px solid var(--line);font-size:.85em;align-items:center}
.kx-lr:last-child{border-bottom:none}
.kx-ls{font-weight:700;color:#b3322a}.kx-ll{color:var(--txt);line-height:1.4}.kx-lw a{font-weight:700;color:var(--accent2)}
@media(max-width:760px){.kx-lr{grid-template-columns:1fr}}
/* mobility formula breakdowns */
.fb-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:820px){.fb-grid{grid-template-columns:1fr}}
.fb-card{border:1px solid var(--line);border-radius:13px;padding:14px 16px;background:var(--panel)}
.fb-name{font-weight:750;color:var(--txt);margin-bottom:10px;font-size:.95em}
.fb-eq{display:flex;align-items:center;gap:12px}
.fb-res{font-family:ui-monospace,monospace;font-weight:800;color:var(--accent2);font-size:1.05em}
.fb-={color:var(--mut);font-weight:700}
.fb-frac{display:inline-flex;flex-direction:column;align-items:center;text-align:center}
.fb-num,.fb-den{font-family:ui-monospace,monospace;font-weight:700;color:var(--txt);font-size:.92em;padding:2px 4px;display:flex;flex-direction:column;line-height:1.15}
.fb-num em,.fb-den em{font-style:normal;font-size:.66rem;font-weight:500;color:#7a879a;font-family:system-ui}
.fb-bar{width:100%;height:2px;background:var(--accent);margin:3px 0}
.fb-tg{margin-left:auto;text-align:center;font-size:.7em;color:var(--mut)}.fb-tg b{color:#16a34a;font-size:1.5em;display:inline-block}
.fb-card.chain .fb-xeq{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.fb-step{display:flex;flex-direction:column}.fb-step b{font-family:ui-monospace,monospace;color:var(--accent2)}.fb-step em{font-style:normal;font-size:.74em;color:var(--mut)}
.fb-x{font-weight:800;color:var(--mut);font-size:1.1em}.fb-arrow{margin-left:auto;font-size:.82em;font-weight:700;color:#16a34a}
/* explorer */
.kx-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
#kx-q{border:1px solid var(--line);border-radius:9px;padding:8px 13px;font-size:.88em;min-width:220px;background:#fff;color:var(--txt)}
#kx-q:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}
.kx-chips{display:flex;gap:6px;flex-wrap:wrap}
.kx-chip{cursor:pointer;border:1px solid var(--line);background:#eef4fb;border-radius:999px;padding:5px 12px;font-size:.8em;font-weight:700;color:var(--txt);transition:.15s}
.kx-chip.on{background:linear-gradient(180deg,var(--accent2),var(--accent));border-color:transparent;color:#fff}
.kx-count{font-size:.8em;color:var(--mut);font-weight:600;margin-left:auto}
.kx-tbl{font-size:.85em}.kx-tbl thead th{background:#f1f0fb;color:#5b3fd0}
.kx-id{font-family:ui-monospace,monospace;font-weight:700;color:var(--accent2);white-space:nowrap}
.kx-sm{font-size:.92em;color:var(--mut)}.kx-tg{font-weight:600;color:#0f7a42;white-space:nowrap}
.kx-fpill{font-size:.82em;font-weight:700;color:var(--fc);background:color-mix(in srgb,var(--fc) 12%,#fff);border:1px solid color-mix(in srgb,var(--fc) 30%,transparent);border-radius:999px;padding:1px 9px;white-space:nowrap}

/* ===== data-split flow-control lab extras ===== */
.sp-seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.sp-mode{cursor:pointer;border:none;background:#eef4fb;padding:7px 12px;font-size:.82em;font-weight:700;color:var(--txt);transition:.15s}
.sp-mode.on{background:linear-gradient(180deg,var(--accent2),var(--accent));color:#fff}
.sp-prot{display:flex;align-items:center;gap:9px;font-size:.85em;font-weight:600;color:var(--txt);cursor:pointer}
.sp-prot input{width:17px;height:17px;accent-color:var(--accent);cursor:pointer}
.sp-canvas,.pl-canvas{background:linear-gradient(180deg,#fafcff,#f3f8fe)}

/* ===== EN-DC integration runbook ===== */
.ig-wrap{border:1px solid var(--line);border-radius:16px;padding:18px;background:
  radial-gradient(520px 220px at 90% -20%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 60%),var(--panel);box-shadow:0 8px 24px rgba(30,55,100,.06)}
.ig-flow{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.ig-pchip{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:10px;padding:7px 11px;background:var(--panel2);font-weight:700;font-size:.84em;color:var(--txt)}
.ig-pl{width:20px;height:20px;border-radius:6px;background:linear-gradient(180deg,var(--accent2),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;font-size:.82em;font-weight:800}
.ig-parr{color:var(--accent);font-weight:800}
.ig-prog{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.ig-bar{flex:1;height:9px;border-radius:6px;background:#e9eef6;overflow:hidden}
.ig-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent2),var(--accent));transition:width .3s}
.ig-bar i[data-done="1"]{background:linear-gradient(90deg,#16a34a,#3ec47a)}
#ig-pct{font-size:.82em;font-weight:700;color:var(--mut);white-space:nowrap}
.ig-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}
@media(max-width:900px){.ig-cols{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.ig-cols{grid-template-columns:1fr}}
.ig-card{border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:var(--panel2)}
.ig-ch{font-weight:750;font-size:.86em;color:var(--txt);margin-bottom:7px;display:flex;align-items:center;gap:6px}
.ig-cl{width:19px;height:19px;border-radius:6px;background:#e4f0fd;color:var(--accent2);display:flex;align-items:center;justify-content:center;font-size:.8em;font-weight:800}
.ig-item{display:flex;gap:8px;align-items:flex-start;padding:5px 0;font-size:.82em;line-height:1.4;color:var(--txt);cursor:pointer}
.ig-item input{margin-top:2px;width:15px;height:15px;accent-color:var(--accent);flex:0 0 auto;cursor:pointer}
.ig-item input:checked+span{color:var(--mut);text-decoration:line-through}
.ig-accept{margin-top:14px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ig-ah{background:#eafaf0;border-bottom:1px solid #c7ebd5;padding:9px 14px;font-weight:750;font-size:.88em;color:#15803d}
.ig-tbl{width:100%;border-collapse:collapse;font-size:.84em}
.ig-tbl th{background:var(--panel2);text-align:left;padding:8px 12px;color:var(--mut);font-size:.92em;border-bottom:1px solid var(--line)}
.ig-tbl td{padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.ig-kid{font-family:ui-monospace,monospace;font-weight:700;color:var(--accent2);white-space:nowrap}
.ig-pass{font-weight:800;color:#15803d;white-space:nowrap}
.ig-pv{color:var(--mut)}
.ig-note{margin:0;padding:10px 14px;font-size:.78em;color:var(--mut);background:var(--panel2);line-height:1.5}