/* Taskwire — case study pages
   Builds on styles.css (tokens, header, buttons, metrics, flow strips, footer).
   Every animated figure has a complete static state: CSS shows the finished result,
   and case-study.js only animates towards it, so content reads with JS or motion off. */

/* Reading progress */
.read-progress{position:fixed;z-index:70;top:0;left:0;right:0;height:2px;pointer-events:none}
.read-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--pink),var(--violet) 50%,var(--blue));transform:scaleX(0);transform-origin:left}

/* Shared bits */
.band{background:var(--bg-2);border-block:1px solid var(--line)}
.cs-h{font-size:clamp(2.75rem,6vw,5.75rem)}
@media (min-width:1024px){.cs .head-split{grid-template-columns:minmax(0,1.8fr) minmax(0,1fr)}}
.fig-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;margin:0;padding:16px 20px;border-bottom:1px solid var(--line)}
.fig-tag{display:inline-block;padding:2px 7px;border:1px solid var(--line-2);font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);vertical-align:2px}
.fig-note{margin:0;padding:16px 20px;border-top:1px solid var(--line);font-size:.8125rem;line-height:1.55;color:var(--muted)}
.r-hot{--rc:var(--pink)}.r-warm{--rc:var(--amber)}.r-inc{--rc:var(--blue)}.r-human{--rc:var(--violet)}.r-spam{--rc:#6c6960}
@keyframes tin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pop-in{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:none}}
.paused,.paused *,.paused *::before,.paused *::after{animation-play-state:paused!important}
.btn:hover .arr.down{transform:translateY(3px)}

/* Hero */
.cs-hero{position:relative;isolation:isolate;overflow:hidden;display:grid;grid-template-rows:1fr auto;min-height:92vh;min-height:92svh;background:#000}
.cs-scene{z-index:-2}
.cs-shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(0,1,1,.92) 0%,rgba(0,1,1,.7) 36%,rgba(0,1,1,0) 64%),linear-gradient(0deg,var(--bg) 0%,rgba(0,1,1,0) 30%)}
.cs-hero-main{align-self:center;width:100%;padding-top:calc(132px + env(safe-area-inset-top,0px));padding-bottom:40px}
.cs-hero-main>*{animation:rise 1.1s var(--ease) both}
.cs-hero-main>:nth-child(2){animation-delay:.08s}
.cs-hero-main>:nth-child(3){animation-delay:.18s}
.cs-hero-main>:nth-child(4){animation-delay:.26s}
.cs-hero-main>:nth-child(5){animation-delay:.34s}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:0 0 28px;font-family:var(--mono);font-size:.75rem;color:var(--muted)}
.crumbs a{color:var(--fg-70);text-decoration:none;border-bottom:1px solid var(--line-2);transition:color .3s,border-color .3s}
.crumbs a:hover{color:var(--fg);border-color:var(--fg)}
.crumbs .sep{color:var(--fg-30)}
.crumbs [aria-current]{color:var(--pink)}
.cs-hero h1{font-size:clamp(2.75rem,6.4vw,6.75rem);line-height:.92;letter-spacing:-.025em;color:#fff}
.cs-hero h1 .line{display:block}
.cs-hero h1 .dim{color:var(--muted)}
.demo-note{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 14px;max-width:46em;margin:32px 0 0;padding:14px 16px;border:1px solid rgba(246,183,95,.32);background:rgba(246,183,95,.06);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.demo-k{display:inline-flex;align-items:center;gap:8px;flex:none;font-family:var(--mono);font-size:.6875rem;letter-spacing:.1em;text-transform:uppercase;color:var(--amber)}
.demo-k i{width:6px;height:6px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px var(--amber);animation:pulse 2s ease-in-out infinite}
.demo-t{font-size:.9375rem;line-height:1.55;color:var(--fg-70)}
.cs-lede{max-width:36em;margin:24px 0 36px;font-size:clamp(1.0625rem,.4vw + .95rem,1.1875rem);line-height:1.625;color:var(--fg-70)}
.cs-meta-wrap{width:100%;padding-bottom:40px}
.cs-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 16px;margin:0;padding-top:24px;border-top:1px solid var(--line);animation:rise 1.1s var(--ease) .44s both}
@media (min-width:900px){.cs-meta{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 40px}}
.cs-meta div{display:flex;flex-direction:column;gap:6px;min-width:0}
.cs-meta dt{font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.cs-meta dd{margin:0;font-size:.9375rem;line-height:1.4;color:var(--fg)}
@media (min-width:900px){.cs-hero h1 .line{white-space:nowrap}}
@media (max-width:899px){
  .cs-shade{background:linear-gradient(0deg,var(--bg) 0%,rgba(0,1,1,.95) 48%,rgba(0,1,1,.4) 62%,rgba(0,1,1,0) 76%)}
  .cs-hero-main{align-self:end;padding-top:min(36svh,320px)}
  .cs-hero .cta-row .btn{flex:1 1 auto}
}

/* At a glance */
.cs-glance{padding-block:56px 8px}
.glance-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (min-width:600px){.glance-grid{gap:16px}}
@media (max-width:599px){.glance-grid .metric{gap:12px;padding:18px 16px}.glance-grid .metric .k{font-size:.6875rem;line-height:1.35;min-height:2.7em}.glance-grid .metric .v{font-size:2.5rem}}
@media (min-width:1100px){.glance-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.glance-grid .metric .v b{font-weight:400}
.glance-grid .metric .v small:first-child{margin-right:-2px}
.glance-note{max-width:62em;margin:20px 0 0;font-family:var(--mono);font-size:.75rem;line-height:1.6;color:var(--muted)}

/* 01 Problem */
.problem-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:40px}
@media (min-width:1024px){.problem-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:72px;align-items:start}}
.prose strong{font-weight:500;color:var(--fg)}
.lanes{margin:0;min-width:0;border:1px solid var(--line);background:var(--card)}
.lane{padding:20px;border-top:1px solid var(--line)}
.lane:first-of-type{border-top:0}
.lane-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px}
.lane-name{margin:0;font-size:1.0625rem;letter-spacing:-.01em}
.lane-out{margin:0;font-family:var(--mono);font-size:.75rem;transition:opacity .4s,color .4s}
.o-warn{color:var(--amber)}
.o-good{color:var(--pink)}
.cs-js .lane-out{opacity:.22}
.lane-out.reached{opacity:1}
.lane-bar{position:relative;height:2px;margin:16px 0 14px;background:var(--line)}
.lane-bar span{position:absolute;left:0;top:0;bottom:0;background:var(--amber)}
.lane-hand .lane-bar span{width:86%}
.lane-auto .lane-bar span{width:7%}
.lane-ours .lane-bar span{width:13%;background:linear-gradient(90deg,var(--violet),var(--pink))}
.lane-bar span::after{content:"";position:absolute;right:-4px;top:-3px;width:8px;height:8px;border-radius:50%;background:inherit;box-shadow:0 0 12px var(--amber)}
.lane-ours .lane-bar span::after{background:var(--pink);box-shadow:0 0 12px var(--pink)}
.lane-steps{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.lane-steps li{padding:5px 8px;border:1px solid var(--line-2);font-family:var(--mono);font-size:.6875rem;line-height:1.2;color:var(--fg);transition:border-color .35s,color .35s,box-shadow .35s}
.cs-js .lane-steps li{color:var(--fg-30);border-color:var(--line)}
.cs-js .lane-steps li.on{color:var(--fg-70);border-color:var(--line-2)}
.cs-js .lane-steps li.cur{color:#fff;border-color:var(--fg)}
.cs-js .lane-ours .lane-steps li.cur{color:var(--pink);border-color:var(--pink);box-shadow:0 0 14px rgba(236,168,214,.35)}

/* 02 Architecture */
.arch{margin:0 0 16px;padding:24px;border:1px solid var(--line);background:var(--card)}
@media (min-width:1024px){.arch{padding:32px 36px}}
.arch-row{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;align-items:center}
@media (min-width:900px){.arch-row{grid-template-columns:230px minmax(0,1fr) 170px;gap:28px}}
.arch-k{display:flex;align-items:center;gap:14px;margin:0}
.arch-k b{display:grid;place-items:center;flex:none;width:34px;height:34px;border:1px solid var(--line-3);font-family:var(--mono);font-weight:400;font-size:.8125rem}
.arch-k span{font-size:1rem;line-height:1.25}
.arch-k small{display:block;font-family:var(--mono);font-size:.6875rem;color:var(--muted)}
.arch .flow{margin:0}
.arch .flow5 span:nth-of-type(5){animation-delay:calc(var(--fd,0s) + 3.6s)}
.arch .flow5 i:nth-of-type(4)::after{animation-delay:calc(var(--fd,0s) + 2.7s)}
.arch-b .flow{--fd:.5s}
.arch-b .end.sys{animation:sys 9.6s var(--ease) infinite}
@keyframes sys{0%,58%,92%,100%{border-color:rgba(236,168,214,.45);color:var(--pink);box-shadow:none}62%,88%{border-color:rgba(246,183,95,.7);color:var(--amber);box-shadow:0 0 16px rgba(246,183,95,.35)}}
.arch-state{position:relative;margin:0;min-height:1.4em;font-family:var(--mono);font-size:.6875rem}
.arch-state span{position:absolute;left:0;top:0;white-space:nowrap}
.arch-state .s-ok{color:var(--lime);animation:s-ok 9.6s infinite}
.arch-state .s-down{color:var(--amber);opacity:0;animation:s-down 9.6s infinite}
@keyframes s-ok{0%,58%{opacity:1}62%,88%{opacity:0}92%,100%{opacity:1}}
@keyframes s-down{0%,58%{opacity:0}62%,88%{opacity:1}92%,100%{opacity:0}}
.arch-join{position:relative;height:56px;margin-left:16px;border-left:1px dashed var(--line-2)}
.arch-join span{position:absolute;left:18px;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:.6875rem;color:var(--muted)}
.arch-join::after{content:"";position:absolute;left:-3px;top:0;width:5px;height:5px;border-radius:50%;background:var(--violet);box-shadow:0 0 10px var(--violet);animation:drop 2.4s linear infinite}
@keyframes drop{0%{transform:translateY(0);opacity:0}15%{opacity:1}85%{opacity:1}100%{transform:translateY(51px);opacity:0}}
.arch figcaption{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);max-width:52em;font-size:.9375rem;color:var(--fg-70)}
@media (max-width:899px){
  .arch-state{min-height:1.2em}
  .arch .flow{font-size:.625rem}
  .arch .flow span{padding:5px 7px}
}

/* 02 Trace */
.trace{min-width:0;border:1px solid var(--line);background:var(--card)}
.trace-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;padding:16px 20px;border-bottom:1px solid var(--line)}
.trace-head .clock{margin-left:auto}
.trace-play{padding:4px 10px;border:1px solid var(--line-2);background:transparent;font:inherit;font-family:var(--mono);font-size:.6875rem;color:var(--fg-70);cursor:pointer;transition:border-color .3s,color .3s}
.trace-play:hover{border-color:var(--fg);color:var(--fg)}
.trace-grid{display:grid;grid-template-columns:minmax(0,1fr)}
@media (min-width:1024px){.trace-grid{grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr)}}
.trace-steps{position:relative;display:flex;flex-direction:column;padding:8px 0}
.trace-steps::before{content:"";position:absolute;left:27px;top:28px;bottom:28px;width:1px;background:var(--line-2)}
.tstep{position:relative;display:grid;grid-template-columns:15px 62px minmax(0,1fr);gap:4px 14px;align-items:start;width:100%;padding:13px 20px;border:0;background:transparent;font:inherit;text-align:left;color:var(--fg);cursor:pointer;transition:background-color .4s}
.tstep:hover{background:rgba(236,235,231,.025)}
.tstep .node{position:relative;z-index:1;width:15px;height:15px;margin-top:3px;border:1px solid var(--line-3);background:var(--card);transition:background-color .3s,border-color .3s,box-shadow .3s}
.tstep .t{padding-top:1px;font-family:var(--mono);font-size:.75rem;color:var(--muted);transition:color .3s}
.tstep .d{font-size:.9375rem;color:var(--fg-50);transition:color .3s}
.tstep .tag{margin-right:8px}
.tstep.is-done .node{background:var(--fg);border-color:var(--fg)}
.tstep.is-done .d{color:var(--fg-70)}
.tstep.is-active{background:linear-gradient(90deg,rgba(236,168,214,.09),transparent 75%)}
.tstep.is-active .node{background:var(--pink);border-color:var(--pink);box-shadow:0 0 0 4px rgba(236,168,214,.18),0 0 18px rgba(236,168,214,.8)}
.tstep.is-active .t{color:var(--pink)}
.tstep.is-active .d{color:var(--fg)}
.tbar{position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,var(--pink),var(--violet));transform:scaleX(0);transform-origin:left}
.tstep.is-active .tbar{animation:fill var(--tms,4600ms) linear forwards}
.trace.is-held .tstep.is-active .tbar{animation:none;transform:scaleX(1)}
.trace-panels{min-width:0;padding:24px 20px 28px;border-top:1px solid var(--line)}
@media (min-width:1024px){.trace-panels{padding:28px 32px 32px;border-top:0;border-left:1px solid var(--line);min-height:520px}}
@media (max-width:1023px){
  .trace-steps{flex-direction:row;gap:8px;overflow-x:auto;padding:12px 16px;scroll-snap-type:x mandatory;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 24px),transparent);mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 24px),transparent)}
  .trace-steps::-webkit-scrollbar{display:none}
  .trace-steps::before{display:none}
  .tstep{flex:none;grid-template-columns:minmax(0,1fr);width:auto;min-width:150px;max-width:190px;padding:12px 14px;border:1px solid var(--line);scroll-snap-align:center}
  .tstep .node,.tstep .t{display:none}
  .tstep .d{font-size:.8125rem;line-height:1.35}
  .tstep .tag{display:block;width:max-content;margin:0 0 6px}
  .tstep.is-active{border-color:rgba(236,168,214,.5)}
}

/* Panels */
.tp:focus-visible{outline-offset:-2px}
.tp-k{margin:0 0 20px;font-size:1.1875rem;line-height:1.3;letter-spacing:-.01em}
.tp-k .fig-tag{margin-left:8px}
.tp-note{max-width:40em;margin:20px 0 0;font-size:.875rem;line-height:1.55;color:var(--muted)}
.tp code,.bug code{font-family:var(--mono)}
.kv{margin:0;border-top:1px solid var(--line)}
.kv div{display:grid;grid-template-columns:72px minmax(0,1fr);gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.kv dt{padding-top:.25em;font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.kv dd{margin:0}
.kv code{display:inline-block;padding:2px 7px;border:1px dashed var(--line-2);font-size:.8125rem;white-space:pre;color:var(--amber)}
.msg{margin:16px 0 0;padding:14px 16px;border-left:2px solid var(--line-3);background:rgba(236,235,231,.03);font-size:.9375rem;line-height:1.6;color:var(--fg)}
.xform{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.xform li{display:grid;grid-template-columns:96px minmax(0,auto) 28px minmax(0,1fr);gap:10px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line);font-size:.8125rem}
.xk{font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.xform .from{color:var(--fg-50);text-decoration:line-through;text-decoration-color:var(--fg-30);overflow-wrap:anywhere}
.xform .to{color:var(--lime);overflow-wrap:anywhere}
.xform .to em{margin-left:6px;padding:0 5px;border:1px solid rgba(202,205,107,.45);font-style:normal;font-size:.625rem;letter-spacing:.08em;text-transform:uppercase}
.to-arrow{position:relative;height:1px;background:var(--line-3)}
.to-arrow::after{content:"";position:absolute;right:0;top:-3px;width:6px;height:6px;border-top:1px solid var(--line-3);border-right:1px solid var(--line-3);transform:rotate(45deg)}
@media (max-width:560px){
  .xform li{grid-template-columns:minmax(0,1fr) 20px minmax(0,1fr);row-gap:6px}
  .xform .xk{grid-column:1 / -1}
}
.json{margin:0;padding:18px 20px;border:1px solid var(--line);background:#020304;overflow-x:auto;font-family:var(--mono);font-size:.8125rem;line-height:1.85;color:var(--fg-70)}
.json .ln{display:block}
.json .jk{color:var(--blue)}.json .js{color:var(--lime)}.json .jn{color:var(--amber)}.json .jb{color:var(--pink)}
.rules{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.rules li{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) 44px;gap:12px;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--line);font-size:.875rem}
.rq{color:var(--fg)}
.ra{font-family:var(--mono);font-size:.75rem;color:var(--muted)}
.ra::before{content:"→ ";color:var(--fg-30)}
.rr{justify-self:end;padding:1px 7px;border:1px solid var(--line-2);font-family:var(--mono);font-size:.6875rem;color:var(--fg-50)}
.rr.yes{border-color:var(--pink);color:var(--pink);box-shadow:0 0 14px rgba(236,168,214,.35)}
.rules li.skip{opacity:.4}
@media (max-width:560px){.rules li{grid-template-columns:minmax(0,1fr) 44px}.rules .ra{grid-column:1;grid-row:2}.rules .rr{grid-row:1 / span 2;align-self:center}}
.route-stamp{display:inline-flex;align-items:center;gap:12px;margin:20px 0 0;padding:8px 14px;border:1px solid var(--pink);box-shadow:0 0 0 4px rgba(236,168,214,.1),0 0 26px rgba(236,168,214,.35)}
.route-stamp span{font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.route-stamp b{font-weight:400;font-size:1.5rem;line-height:1;color:var(--pink)}
.slack{border:1px solid var(--line);background:#0a0b0e}
.slack-ch{margin:0;padding:10px 16px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.75rem;color:var(--fg-70)}
.slack-msg{display:grid;grid-template-columns:36px minmax(0,1fr);gap:12px;padding:16px}
.slack-av{display:grid;place-items:center;width:36px;height:36px;border-radius:6px;background:linear-gradient(135deg,var(--pink),var(--violet));font-family:var(--mono);font-size:.6875rem;color:var(--ink)}
.slack-msg p{margin:0;font-size:.875rem;line-height:1.55;color:var(--fg-70);overflow-wrap:anywhere}
.slack-who{display:flex;align-items:center;gap:8px}
.slack-who b{font-weight:500;color:var(--fg)}
.slack-who span{padding:0 4px;border-radius:3px;background:rgba(236,235,231,.1);font-size:.5625rem;letter-spacing:.06em;color:var(--fg-70)}
.slack-title{margin-top:6px!important;padding-left:10px;border-left:3px solid var(--pink);font-size:1rem!important;color:var(--fg)!important}
.slack-msg p:not(.slack-who):not(.slack-title){padding-left:13px}
.slack-foot{margin-top:6px!important;font-family:var(--mono);font-size:.75rem!important;color:var(--pink)!important}
.draft{border:1px solid var(--line);background:#0a0b0e}
.draft-sub{display:flex;gap:12px;margin:0;padding:12px 16px;border-bottom:1px solid var(--line);font-size:.875rem}
.draft-sub span{font-family:var(--mono);font-size:.6875rem;color:var(--muted)}
.draft-body{margin:0;padding:16px;font-size:.9375rem;line-height:1.65;color:var(--fg-70)}
.draft-body del{color:var(--fg-50);text-decoration:line-through;text-decoration-color:var(--amber);text-decoration-thickness:2px}
.draft-body ins{padding:0 3px;background:rgba(202,205,107,.14);color:var(--lime);text-decoration:none}
.draft-act{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}
.btn-mock{position:relative;display:inline-grid;place-items:center;height:32px;padding:0 14px;border:1px solid var(--line-2);border-radius:999px;font-size:.75rem;color:var(--fg-70)}
.btn-mock.approve{min-width:104px;border-color:var(--lime);background:rgba(202,205,107,.12);color:var(--lime)}
.btn-mock.approve span{grid-area:1 / 1}
.btn-mock .a1{opacity:0}
.sent{border:1px solid var(--line);background:#0a0b0e}
.sent-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:baseline;margin:0;padding:12px 16px;border-bottom:1px solid var(--line);font-size:.875rem;color:var(--fg-70)}
.sent-k{font-family:var(--mono);font-size:.6875rem;color:var(--muted)}
.sent-v{overflow-wrap:anywhere}
.sent-v b{font-weight:500;color:var(--fg)}
.sent-s{font-family:var(--mono);font-size:.6875rem;color:var(--lime)}
.sent-quote{margin:0;padding:14px 16px;font-size:.9375rem;color:var(--fg-70)}
.sent-quote mark{padding:0 3px;background:rgba(202,205,107,.16);color:var(--lime)}
.crm{margin-top:12px;border:1px solid var(--line)}
.crm-k{margin:0;padding:10px 16px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.6875rem;color:var(--muted)}
.crm-props{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:0}
@media (min-width:560px){.crm-props{grid-template-columns:repeat(4,minmax(0,1fr))}}
.crm-props div{padding:12px 16px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.crm-props dt{font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.crm-props dd{margin:4px 0 0;font-size:.9375rem}
.http{list-style:none;margin:0;padding:8px 0;border:1px solid var(--line);background:#020304;font-family:var(--mono);font-size:.8125rem}
.http li{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px;padding:8px 16px;color:var(--fg-70)}
.http .m{flex:none;min-width:40px;color:var(--violet)}
.http .m.h{color:var(--muted)}
.http code{overflow-wrap:anywhere}
.http .retry{padding:0 6px;border:1px solid var(--line-2);font-size:.625rem;letter-spacing:.06em;text-transform:uppercase;color:var(--amber)}
.http .res.ok span:last-child{color:var(--lime)}
.http .res.same span:last-child{color:var(--cyan)}
.http .res .m{color:var(--fg-30)}

/* Panel entrance choreography (only while a panel is showing; delays set by case-study.js) */
.tp.is-on .stg>*{animation:tin .5s var(--ease) both}
.tp.is-on .msg{animation:tin .6s var(--ease) .45s both}
.tp.is-on .xform .from{animation:xfrom 1.2s var(--ease) both}
.tp.is-on .xform .to-arrow{animation:grow .4s var(--ease) both;transform-origin:left}
.tp.is-on .xform .to{animation:tin .45s var(--ease) both}
@keyframes xfrom{0%{text-decoration-color:transparent;color:var(--fg)}50%{text-decoration-color:transparent;color:var(--fg)}100%{text-decoration-color:var(--fg-30);color:var(--fg-50)}}
@keyframes grow{from{transform:scaleX(0)}to{transform:none}}
.tp.is-on .rules .rr{animation:pop-in .35s var(--ease) both}
.tp.is-on .route-stamp{animation:stamp .6s var(--ease) 2.5s both}
@keyframes stamp{from{opacity:0;transform:scale(1.35);filter:blur(4px)}to{opacity:1;transform:none;filter:none}}
.tp.is-on .slack-msg{animation:slide .6s var(--ease) .35s both}
@keyframes slide{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.tp.is-on .draft-body del{animation:strike .5s var(--ease) 1s both}
@keyframes strike{from{text-decoration-color:transparent;color:var(--fg-70)}to{text-decoration-color:var(--amber);color:var(--fg-50)}}
.tp.is-on .draft-body ins{animation:ins .5s var(--ease) 1.5s both}
@keyframes ins{from{opacity:0;background:transparent}to{opacity:1}}
.tp.is-on .btn-mock .a1{animation:a1 2.8s both}
.tp.is-on .btn-mock .a2{animation:a2 2.8s both}
.tp.is-on .btn-mock.approve{animation:press 2.8s both}
@keyframes a1{0%,80%{opacity:1}86%,100%{opacity:0}}
@keyframes a2{0%,80%{opacity:0}86%,100%{opacity:1}}
@keyframes press{0%,74%{transform:none;box-shadow:none}79%{transform:scale(.94)}86%,100%{transform:none;box-shadow:0 0 0 4px rgba(202,205,107,.14),0 0 20px rgba(202,205,107,.4)}}
.tp.is-on .sent{animation:slide .55s var(--ease) .2s both}
.tp.is-on .sent-quote mark{animation:hl 1.4s var(--ease) .8s both}
@keyframes hl{0%{background:transparent;color:var(--fg-70)}40%{background:rgba(202,205,107,.4);color:#fff}100%{background:rgba(202,205,107,.16);color:var(--lime)}}
.tp.is-on .crm-props div{animation:tin .45s var(--ease) both}

/* 03 Routes */
.routes-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
.sorter{position:relative;margin:0;min-width:0;border:1px solid var(--line);background:var(--card)}
.sort-count{color:var(--fg-70)!important}
.sort-count b{font-weight:400;color:var(--fg);font-variant-numeric:tabular-nums}
.sort-feed{position:relative;height:56px;border-bottom:1px dashed var(--line-2)}
.sort-feed::before{content:"Next enquiry";position:absolute;left:20px;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--fg-30)}
.feed-dot{position:absolute;left:50%;top:50%;width:12px;height:12px;margin:-6px 0 0 -6px;border:1px solid var(--line-3);opacity:0}
.feed-dot.on{opacity:1;animation:pulse 1s ease-in-out infinite}
.buckets{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;padding:20px}
@media (min-width:640px){.buckets{gap:12px;padding:24px}}
.bucket{display:flex;flex-direction:column;justify-content:flex-end;min-width:0;border-top:2px solid var(--rc)}
.buckets{--s:10px;--per:3;--rows:4}
@media (min-width:640px){.buckets{--s:12px;--per:4;--rows:3}}
@media (min-width:1024px){.buckets{--s:18px;--per:4;--rows:3}}
.bdots{display:flex;flex-wrap:wrap-reverse;align-content:flex-start;justify-content:flex-start;gap:4px;width:100%;max-width:calc(var(--s) * var(--per) + 4px * (var(--per) - 1));min-height:calc((var(--s) + 4px) * var(--rows) + 18px);padding:12px 0 10px}
.slot{width:var(--s);height:var(--s);border:1px solid var(--rc);background:var(--rc);box-shadow:0 0 8px color-mix(in srgb,var(--rc) 55%,transparent);transition:background-color .3s,box-shadow .3s,border-color .3s,opacity .3s}
.cs-js .sorter.empty .slot:not(.full){background:transparent;border-color:var(--line);box-shadow:none}
.bucket p{display:flex;flex-direction:column;gap:2px;margin:0;padding-top:10px;border-top:1px solid var(--line)}
.bucket b{font-weight:400;font-size:clamp(1.375rem,1.5vw + .8rem,2rem);line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--rc)}
.bucket span{font-family:var(--mono);font-size:.625rem;color:var(--muted);white-space:nowrap}
@media (max-width:639px){.bucket span{font-size:.5625rem;letter-spacing:-.02em}}
.flyer{position:absolute;left:0;top:0;z-index:2;width:12px;height:12px;margin:-6px 0 0 -6px;background:var(--rc);box-shadow:0 0 14px var(--rc);pointer-events:none}
.route-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
@media (min-width:640px) and (max-width:1023px){.route-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.route-list{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;padding-inline:24px}.route{grid-template-columns:minmax(0,1fr);gap:12px;padding:20px}.route .rdot{margin-top:0}}
.route{display:grid;grid-template-columns:14px minmax(0,1fr);gap:16px;padding:20px 22px;border:1px solid var(--line);transition:border-color .4s,background-color .4s}
.rdot{width:10px;height:10px;margin-top:7px;border-radius:50%;background:var(--rc);box-shadow:0 0 10px var(--rc);transition:transform .3s var(--ease)}
.route h3{margin:0 0 4px;font-size:1.0625rem;font-weight:500}
.route p{margin:0;font-size:.875rem;color:var(--muted)}
.route.ping{border-color:color-mix(in srgb,var(--rc) 55%,transparent);background:color-mix(in srgb,var(--rc) 5%,transparent)}
.route.ping .rdot{transform:scale(1.6)}

/* 04 Results */
.testset{margin:0 0 40px}
.rv-on .testset li{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.rv-on .testset.in li{opacity:1;transform:none}
.results-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:1024px){.results-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start}}
.score{min-width:0;border:1px solid var(--line);background:var(--card)}
.score-rows{list-style:none;margin:0;padding:4px 20px}
.score-rows li{display:grid;grid-template-columns:minmax(0,13em) minmax(0,1fr) 5.5em;gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.score-rows li:last-child{border-bottom:0}
.sk{font-size:.9375rem}
.st{position:relative;height:6px;background:var(--line);overflow:hidden}
.score-rows .partial .st{background:repeating-linear-gradient(135deg,rgba(246,183,95,.35) 0 3px,transparent 3px 6px)}
.st i{position:absolute;left:0;top:0;bottom:0;width:100%;background:linear-gradient(90deg,var(--violet),var(--pink));transition:width 1.3s var(--ease)}
.score-rows .partial .st i{width:91.43%}
.cs-js .score:not(.go) .st i{width:0}
.sv{justify-self:end;font-family:var(--mono);font-size:.75rem;color:var(--muted);white-space:nowrap}
.sv b{font-family:var(--sans);font-weight:400;font-size:1.125rem;color:var(--fg);font-variant-numeric:tabular-nums}
@media (max-width:640px){.score-rows li{grid-template-columns:minmax(0,1fr) auto;gap:8px 12px}.st{grid-column:1 / -1;grid-row:2}}
.inject{margin:0;min-width:0;border:1px solid var(--line);background:var(--card)}
.inject-msg{margin:0;padding:20px;min-height:9.5em;font-size:.9375rem;line-height:1.65;color:var(--fg-70)}
.im-b{padding:1px 2px;background:rgba(246,183,95,.16);color:var(--amber);box-shadow:inset 0 -1px 0 var(--amber);transition:background-color .5s,color .5s,box-shadow .5s}
.cs-js .inject:not(.hl) .im-b{background:transparent;color:var(--fg-70);box-shadow:none}
.inject.typing .inject-msg::after{content:"";display:inline-block;width:7px;height:1.05em;margin-left:2px;vertical-align:-2px;background:var(--pink);animation:blink .9s steps(1) infinite}
.inject-out{display:grid;gap:10px;padding:16px 20px;border-top:1px solid var(--line);font-family:var(--mono);font-size:.75rem}
.inject-out p{display:grid;grid-template-columns:140px minmax(0,1fr);gap:12px;align-items:baseline;margin:0}
.inject-out b{justify-self:start;padding:2px 8px;font-weight:400;border:1px solid}
.io-flag{border-color:var(--pink)!important;color:var(--pink);box-shadow:0 0 14px rgba(236,168,214,.35)}
.io-route{border-color:var(--violet)!important;color:var(--violet)}
.cs-js .inject:not(.out) .inject-out p{opacity:0;transform:translateY(6px)}
.inject-out p{transition:opacity .45s var(--ease),transform .45s var(--ease)}
.inject-out p+p{transition-delay:.35s}
.callouts{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;margin-top:16px}
@media (min-width:900px){.callouts{grid-template-columns:repeat(2,minmax(0,1fr))}}
.callout{padding:24px;border:1px solid var(--line)}
.callout .mono-k{margin-bottom:10px}
.callout p:last-child{margin:0;color:var(--fg-70)}

/* 05 Defects */
.bug-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:1024px){.bug-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.bug{display:flex;flex-direction:column;min-width:0;padding:28px 22px;border:1px solid var(--line);background:var(--card)}
@media (min-width:768px){.bug{padding:36px}}
.bug-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px}
.bug-n{font-family:var(--mono);font-size:.75rem;color:var(--pink)}
.ba{display:inline-flex;padding:3px;border:1px solid var(--line-2);border-radius:999px}
.ba button{padding:6px 12px;border:0;border-radius:999px;background:transparent;font:inherit;font-family:var(--mono);font-size:.6875rem;color:var(--muted);cursor:pointer;transition:background-color .3s,color .3s}
.ba button:hover{color:var(--fg)}
.ba button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.bug h3{margin:20px 0 20px;font-size:clamp(1.375rem,1vw + 1rem,1.75rem);line-height:1.15;letter-spacing:-.015em}
.bug-vis{margin:0 0 20px;padding:16px;border:1px solid var(--line);background:rgba(236,235,231,.015);font-family:var(--mono);font-size:.75rem;line-height:1.5}
.sub{padding-bottom:12px;margin-bottom:12px;border-bottom:1px dashed var(--line)}
.sub-k{margin:0 0 8px;font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.pl{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 10px}
.pl .f{padding:3px 7px;border:1px solid var(--line-2);color:var(--fg-70);overflow-wrap:anywhere;transition:opacity .4s,border-color .4s,color .4s}
.pl .f.ai{border-color:rgba(190,149,238,.45);color:var(--violet)}
.bug[data-state="after"] .pl .f.ai{opacity:.35;text-decoration:line-through;border-style:dashed}
.fp{display:flex;align-items:baseline;gap:10px;margin:0}
.fp span{font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.hash{padding:2px 8px;border:1px solid rgba(246,183,95,.5);color:var(--amber);font-size:.875rem;letter-spacing:.08em;transition:border-color .4s,color .4s,box-shadow .4s}
.bug[data-state="after"] .hash{border-color:rgba(202,205,107,.6);color:var(--lime);box-shadow:0 0 14px rgba(202,205,107,.25)}
.verdict{position:relative;margin:4px 0 0;min-height:1.5em}
.verdict span{display:block}
.verdict .vb{color:var(--amber)}
.verdict .va{color:var(--lime)}
.verdict .vb::before{content:"✕  "}
.verdict .va::before{content:"✓  "}
.bug[data-state="before"] .va,.bug[data-state="after"] .vb{display:none}
.bug[data-state="before"] .vb,.bug[data-state="after"] .va{animation:tin .45s var(--ease) both}
.fx{display:flex;align-items:baseline;gap:10px;margin:0 0 12px;padding:8px 10px;border:1px solid var(--line);background:#020304;overflow:hidden}
.fx-k{flex:none;font-style:italic;color:var(--muted)}
.fx code{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fx-b{color:var(--fg-70)}
.fx-b::first-letter{color:var(--pink)}
.fx-a{color:var(--fg-70)}
.bug[data-state="before"] .fx-a,.bug[data-state="after"] .fx-b{display:none}
.grid{display:grid;grid-template-columns:36px 66px minmax(0,1fr);margin:0 0 12px;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.grid>span{min-width:0;padding:7px 8px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--fg-70);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.grid .h,.grid .rn{background:rgba(236,235,231,.04);color:var(--muted);text-align:center}
.grid .rn{padding-inline:4px;text-overflow:clip}
.grid .h:last-child{text-align:left}
.cell{position:relative}
.bug[data-state="before"] .cell{box-shadow:inset 0 0 0 1px var(--amber);animation:warn 1.6s ease-in-out infinite}
@keyframes warn{50%{box-shadow:inset 0 0 0 1px var(--amber),inset 0 0 14px rgba(246,183,95,.3)}}
.cb{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.ca{color:var(--fg-70)}
.bug[data-state="before"] .ca,.bug[data-state="after"] .cb{display:none}
.bug-text{margin:0;font-size:.9375rem;color:var(--fg-70)}
.bug-text strong{font-weight:500;color:var(--fg)}
.bug-text code{padding:0 4px;border:1px solid var(--line-2);font-size:.8125rem}

/* 05 Drills */
.drills-title{margin:80px 0 24px;font-size:clamp(1.375rem,1vw + 1rem,1.75rem);letter-spacing:-.015em}
.drills{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:1024px){.drills{grid-template-columns:repeat(3,minmax(0,1fr))}}
.drill{display:flex;flex-direction:column;min-width:0;padding:28px 22px;border:1px solid var(--line);background:var(--card)}
@media (min-width:768px){.drill{padding:32px}}
.drill-n{display:flex;justify-content:space-between;align-items:center;margin:0;font-family:var(--mono);font-size:.75rem;color:var(--muted)}
.pass{padding:2px 7px;border:1px solid rgba(202,205,107,.5);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--lime)}
.drill h3{margin:14px 0 20px;font-size:1.25rem;line-height:1.2}
.drill>p:last-child{margin:0;font-size:.9375rem;color:var(--fg-70)}
.dv{display:flex;flex-direction:column;justify-content:center;gap:12px;min-height:168px;margin-bottom:20px;padding:18px 16px;border:1px solid var(--line);background:rgba(236,235,231,.015);font-family:var(--mono);font-size:.6875rem}
.dr{display:grid;grid-template-columns:44px minmax(0,1fr) 104px;gap:10px;align-items:center;margin:0}
.dl{color:var(--muted)}
.dw{position:relative;height:1px;background:var(--line-2);overflow:hidden}
.dw::after{content:"";position:absolute;top:-1px;left:0;width:40%;height:3px;transform:translateX(-100%);animation:signal 3.2s linear infinite}
.dr.ok .dw::after{background:linear-gradient(90deg,transparent,var(--pink),transparent)}
.dr.alert .dw::after{background:linear-gradient(90deg,transparent,var(--amber),transparent);animation-delay:1.2s}
.dr.fail .dw{background:linear-gradient(90deg,var(--line-2) 0 45%,transparent 45% 55%,var(--line-2) 55%)}
.dr.fail .dw::after{background:linear-gradient(90deg,transparent,var(--fg-50),transparent);animation:half 3.2s linear .6s infinite}
@keyframes half{0%{transform:translateX(-100%);opacity:1}14%{transform:translateX(60%);opacity:1}18%,100%{transform:translateX(60%);opacity:0}}
.dn{padding:5px 8px;border:1px solid var(--line-2);color:var(--fg-70);line-height:1.3}
.dn em{display:block;font-style:normal;font-size:.625rem}
.dr.ok .dn{border-color:rgba(236,168,214,.45)}
.dr.ok em{color:var(--pink)}
.dr.fail .dn{border-color:rgba(246,183,95,.55);animation:down 1.6s ease-in-out infinite}
.dr.fail em{color:var(--amber)}
.dr.alert .dn{border-color:rgba(246,183,95,.35)}
.dr.alert em{color:var(--amber)}
@keyframes down{50%{box-shadow:0 0 14px rgba(246,183,95,.35)}}
.lr{display:grid;grid-template-columns:44px minmax(0,1fr) 72px;gap:10px;align-items:center;margin:0;animation:row 7s var(--ease) infinite both}
.lr span:first-child{color:var(--muted)}
.lr .ok{color:var(--lime)}
.lr .x{color:var(--amber)}
.arrow{position:relative;height:1px;background:var(--fg-50)}
.arrow::after{content:"";position:absolute;right:0;top:-3px;width:6px;height:6px;border-top:1px solid var(--fg-50);border-right:1px solid var(--fg-50);transform:rotate(45deg)}
.arrow.lost{background:repeating-linear-gradient(90deg,var(--amber) 0 4px,transparent 4px 8px)}
.arrow.lost::after{display:none}
.lr.r2{animation-name:row2}
.lr.r3{animation-name:row3}
.records{display:flex;align-items:baseline;gap:10px;margin:4px 0 0;padding-top:10px;border-top:1px dashed var(--line);color:var(--muted);animation:row4 7s var(--ease) infinite both}
.records b{font-family:var(--sans);font-weight:400;font-size:1.75rem;line-height:1;color:var(--lime)}
@keyframes row{0%{opacity:0;transform:translateX(-8px)}6%,90%{opacity:1;transform:none}100%{opacity:0}}
@keyframes row2{0%,20%{opacity:0;transform:translateX(-8px)}26%,90%{opacity:1;transform:none}100%{opacity:0}}
@keyframes row3{0%,40%{opacity:0;transform:translateX(-8px)}46%,90%{opacity:1;transform:none}100%{opacity:0}}
@keyframes row4{0%,58%{opacity:0;transform:translateY(6px)}64%,90%{opacity:1;transform:none}100%{opacity:0}}
.slow-t{display:flex;align-items:baseline;gap:6px;margin:0}
.slow-t b{font-family:var(--sans);font-weight:400;font-size:2.5rem;line-height:1;letter-spacing:-.03em;color:var(--fg);font-variant-numeric:tabular-nums}
.slow-t small{color:var(--muted);font-size:.875rem}
.slow-t .tl{margin-left:auto;padding:1px 6px;border:1px solid var(--line-2);font-size:.5625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.slow-bar{position:relative;display:block;height:4px;background:var(--line)}
.slow-bar i{position:absolute;left:0;top:0;bottom:0;width:100%;background:linear-gradient(90deg,var(--violet),var(--amber))}
.slow-r{position:relative;margin:0;min-height:1.4em}
.slow-r span{position:absolute;left:0;top:0}
.slow-r .w{color:var(--amber);opacity:0}
.slow-r .d{color:var(--lime)}
.dv-slow.waiting .slow-r .w{opacity:1;animation:pulse 1.2s ease-in-out infinite}
.dv-slow.waiting .slow-r .d{opacity:0}

/* 06 Cost */
.cost-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:1024px){.cost-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch}}
.taskbars{display:flex;flex-direction:column;margin:0;min-width:0;border:1px solid var(--line);background:var(--card)}
.taskbars ul{list-style:none;margin:0;padding:8px 20px;flex:1}
.taskbars li{display:grid;grid-template-columns:76px minmax(0,1fr) 28px;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.taskbars li:last-child{border-bottom:0}
.tk{font-family:var(--mono);font-size:.6875rem;color:var(--muted)}
.cells{display:flex;flex-wrap:wrap;gap:4px}
.cells i{width:14px;height:14px;background:var(--rc);box-shadow:0 0 8px color-mix(in srgb,var(--rc) 40%,transparent)}
@media (max-width:420px){.cells i{width:11px;height:11px}.cells{gap:3px}}
.cs-js .taskbars:not(.go) .cells i{opacity:0;transform:scale(.4)}
.cells i{transition:opacity .35s var(--ease),transform .35s var(--ease)}
.taskbars li b{justify-self:end;font-weight:400;font-size:1.25rem;font-variant-numeric:tabular-nums}
.avg{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0;padding:16px 20px;border-top:1px solid var(--line)}
.avg b{font-weight:400;font-size:2.25rem;line-height:1;letter-spacing:-.03em;background:linear-gradient(100deg,var(--pink),var(--violet) 50%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.calc{display:flex;flex-direction:column;min-width:0;padding:28px 22px;border:1px solid var(--line);background:var(--card)}
@media (min-width:768px){.calc{padding:32px}}
.calc-in{display:flex;align-items:center;gap:16px;margin:14px 0 28px}
.calc-in output{min-width:3ch;font-family:var(--mono);font-size:1.5rem;text-align:right;font-variant-numeric:tabular-nums}
.calc input[type=range]{flex:1;min-width:0;height:24px;margin:0;background:transparent;-webkit-appearance:none;appearance:none;cursor:pointer;--p:30%}
.calc input[type=range]::-webkit-slider-runnable-track{height:2px;background:linear-gradient(90deg,var(--pink) 0 var(--p),var(--line-2) var(--p))}
.calc input[type=range]::-moz-range-track{height:2px;background:var(--line-2)}
.calc input[type=range]::-moz-range-progress{height:2px;background:var(--pink)}
.calc input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;margin-top:-9px;border:0;border-radius:50%;background:var(--fg);box-shadow:0 0 0 4px rgba(236,168,214,.25),0 0 16px rgba(236,168,214,.6)}
.calc input[type=range]::-moz-range-thumb{width:20px;height:20px;border:0;border-radius:50%;background:var(--fg);box-shadow:0 0 0 4px rgba(236,168,214,.25),0 0 16px rgba(236,168,214,.6)}
.calc input[type=range]:focus-visible{outline:2px solid var(--fg);outline-offset:4px}
.calc-big{display:flex;flex-direction:column;gap:8px;margin:0 0 28px}
.calc-big span{font-size:clamp(3rem,3.5vw + 1rem,4.5rem);line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums;background:linear-gradient(100deg,var(--pink),var(--violet) 45%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.calc-big small{font-family:var(--mono);font-size:.75rem;color:var(--muted)}
.band-meter{position:relative;display:grid;grid-template-columns:18.75% 31.25% 50%;margin-bottom:40px}
.seg{position:relative;height:8px;border-right:2px solid var(--bg)}
.seg.s1{background:rgba(202,205,107,.4)}
.seg.s2{background:rgba(146,170,250,.4)}
.seg.s3{background:rgba(190,149,238,.25);border-right:0}
.seg em{position:absolute;left:0;top:16px;font-style:normal;font-family:var(--mono);font-size:.625rem;line-height:1.3;color:var(--muted)}
.marker{position:absolute;top:-7px;left:35.5%;width:2px;height:22px;margin-left:-1px;background:var(--fg);box-shadow:0 0 10px var(--pink);transition:left .45s var(--ease)}
.calc-fit{margin:0 0 20px;font-size:1rem;color:var(--fg)}
.calc .fig-note{margin-top:auto;padding:16px 0 0}

/* 07 Limitations */
.limits{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:900px){.limits{grid-template-columns:repeat(2,minmax(0,1fr))}}
.limit{display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;padding:28px 22px;border:1px solid var(--line);transition:border-color .3s,background-color .3s}
@media (min-width:768px){.limit{padding:32px}}
.limit:hover{border-color:var(--line-2);background:rgba(236,235,231,.02)}
.limit-n{padding-top:.3em;font-family:var(--mono);font-size:.75rem;color:var(--fg-30)}
.limit h3{margin:0 0 8px;font-size:1.125rem;font-weight:500;line-height:1.3}
.limit p{margin:0;font-size:.9375rem;color:var(--fg-70)}
.limit .fix{display:flex;align-items:baseline;gap:10px;margin-top:14px;font-size:.875rem;color:var(--fg)}
.fix b{flex:none;padding:1px 7px;border:1px solid rgba(202,205,107,.5);font-family:var(--mono);font-weight:400;font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;color:var(--lime)}
.steps-meter{display:grid;grid-template-columns:repeat(30,minmax(0,1fr));gap:3px;margin:16px 0 8px}
.steps-meter i{height:12px;border:1px solid var(--line-2);transition:background-color .3s,border-color .3s,box-shadow .3s}
.steps-meter i.used{background:var(--violet);border-color:var(--violet)}
.steps-meter i.used.hi{background:var(--amber);border-color:var(--amber)}
.cs-js .steps-meter:not(.go) i.used{background:transparent;border-color:var(--line-2)}
.meter-k{font-family:var(--mono);font-size:.75rem!important;color:var(--muted)!important}
.meter-k b{font-weight:400;color:var(--fg)}

/* 08 Chain */
.chain{position:relative;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:12px;counter-reset:none}
@media (min-width:1024px){.chain{grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}}
.chain li{position:relative;z-index:1;display:flex;flex-direction:column;min-width:0;padding:24px 20px;border:1px solid var(--line);background:var(--bg-2)}
.cn{display:grid;place-items:center;width:34px;height:34px;margin-bottom:18px;border:1px solid var(--line-3);border-radius:50%;background:var(--bg-2);font-family:var(--mono);font-size:.75rem;animation:cn 7.5s var(--ease) infinite}
.chain li:nth-child(2) .cn{animation-delay:1.5s}
.chain li:nth-child(3) .cn{animation-delay:3s}
.chain li:nth-child(4) .cn{animation-delay:4.5s}
.chain li:nth-child(5) .cn{animation-delay:6s}
@keyframes cn{0%,22%,100%{border-color:var(--line-3);color:var(--fg);box-shadow:none}4%,18%{border-color:var(--pink);color:var(--pink);box-shadow:0 0 0 4px rgba(236,168,214,.14),0 0 20px rgba(236,168,214,.5)}}
.chain b{font-weight:400;font-size:1.125rem;line-height:1.25}
.chain li>span:last-child{margin-top:4px;font-size:.875rem;color:var(--muted)}
.chain::before{content:"";position:absolute;z-index:0;left:37px;top:24px;bottom:24px;width:1px;background:var(--line-2)}
.chain::after{content:"";position:absolute;z-index:0;left:36px;top:24px;width:3px;height:60px;background:linear-gradient(180deg,transparent,var(--pink),transparent);animation:vsig 7.5s linear infinite}
@keyframes vsig{from{transform:translateY(0)}to{transform:translateY(calc(var(--chain-h,600px) - 60px))}}
@media (min-width:1024px){
  .chain::before{left:24px;right:24px;top:41px;bottom:auto;width:auto;height:1px}
  .chain::after{left:24px;top:40px;width:80px;height:3px;background:linear-gradient(90deg,transparent,var(--pink),transparent);animation-name:hsig}
  @keyframes hsig{from{transform:translateX(0)}to{transform:translateX(calc(var(--chain-w,1200px) - 128px))}}
}
@media (max-width:1023px){.chain li{display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:16px;align-items:center;padding:18px 20px}.chain .cn{grid-row:1 / span 2;margin:0}.chain li>span:last-child{grid-column:2;margin-top:2px}}
.fits{margin-top:32px}

/* CTA */
.cta-side{display:flex;flex-direction:column;justify-content:center;gap:12px;min-width:0}
.cta-side .btn{width:100%}
.back-link{align-self:flex-start;margin-top:8px;font-family:var(--mono);font-size:.8125rem;color:var(--muted);text-decoration:none;transition:color .3s}
.back-link:hover{color:var(--fg)}
.back-link span{display:inline-block;transition:transform .3s var(--ease)}
.back-link:hover span{transform:translateX(-4px)}

@media (prefers-reduced-motion:reduce){
  .read-progress{display:none}
  .arch-state .s-down{display:none}
  .lr,.records{opacity:1}
}