/* Use-case stories (/use-cases). Sits on top of site.css + swiss.css tokens. */
.ucs{--pad:clamp(20px,4vw,56px);--max:1280px;position:relative;z-index:1}
.ucs *{box-sizing:border-box}
.ucs-in{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.ucs-mono{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.ucs-bar{position:fixed;left:0;top:0;height:3px;width:100%;background:var(--ink);transform-origin:0 50%;transform:scaleX(0);z-index:60;pointer-events:none}

/* reveal on scroll */
.ucs [data-rv]{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.ucs [data-rv].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.ucs [data-rv]{opacity:1;transform:none;transition:none}}

/* ---------- glyph art ---------- */
.ucs-glyph{display:block;width:100%;height:100%}
.ucs-art img{display:block;width:100%;height:100%;object-fit:cover}
.uca-art .ucs-glyph{position:absolute;left:0;top:-12%;height:124%}
.ucs-art{position:relative;background:var(--ink);overflow:hidden}
.ucs-art::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px) 0 0/25% 100%}

/* ---------- index: hero ---------- */
.uci-hero{padding:clamp(56px,9vw,120px) 0 clamp(32px,5vw,64px)}
.uci-hero h1{margin:22px 0 0;font-size:clamp(46px,8.4vw,128px);line-height:.92;letter-spacing:-.05em;font-weight:450;color:var(--ink);max-width:11ch}
.uci-hero h1 em{font-family:Georgia,"Times New Roman",serif;font-style:italic;font-weight:400;letter-spacing:-.05em;color:inherit}
.uci-lede{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(24px,5vw,80px);margin-top:clamp(28px,4vw,56px);align-items:end}
.uci-lede p{margin:0;font-size:clamp(18px,1.9vw,24px);line-height:1.45;letter-spacing:-.01em;color:var(--ink);max-width:34ch}
.uci-path{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink)}
.uci-path li{padding:14px 12px 0 0;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);line-height:1.6}
.uci-path b{display:block;color:var(--ink);font-weight:600}

/* ---------- index: filter + grid ---------- */
.uci-filter{display:flex;flex-wrap:wrap;gap:8px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:sticky;top:60px;background:var(--paper);z-index:20}
.uci-filter button{appearance:none;border:1px solid var(--line);background:transparent;color:var(--muted);font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding:9px 13px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.uci-filter button:hover{border-color:var(--ink);color:var(--ink)}
.uci-filter button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.uci-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,28px);padding:clamp(24px,3vw,40px) 0 0}
.uci-card{display:flex;flex-direction:column;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);transition:border-color .2s}
.uci-card:hover{border-color:var(--ink)}
.uci-card[hidden]{display:none}
.uci-card .ucs-art{aspect-ratio:16/9}
.uci-card.big{grid-column:span 2}
.uci-card.big .ucs-art{aspect-ratio:auto;flex:1;min-height:260px}
.uci-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:0 0 auto}
.uci-meta{display:flex;justify-content:space-between;gap:10px}
.uci-card h2{margin:0;font-size:clamp(21px,1.9vw,27px);line-height:1.12;letter-spacing:-.025em;font-weight:500;color:var(--ink)}
.uci-card.big h2{font-size:clamp(26px,3vw,42px);line-height:1.04;letter-spacing:-.035em}
.uci-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
.uci-go{margin-top:4px;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink)}
.uci-go i{display:inline-block;font-style:normal;transition:transform .25s}
.uci-card:hover .uci-go i{transform:translateX(6px)}
.uci-note{margin:clamp(36px,5vw,64px) 0 0;padding-top:18px;border-top:1px solid var(--line);max-width:70ch;line-height:1.8}

/* ---------- article: hero ---------- */
.uca-hero{padding:clamp(36px,6vw,84px) 0 clamp(28px,4vw,48px)}
.uca-crumb{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center}
.uca-crumb a{color:var(--muted);text-decoration:none}
.uca-crumb a:hover{color:var(--ink)}
.uca-crumb .sep{color:var(--faint)}
.uca-hero h1{margin:26px 0 0;font-size:clamp(40px,7.2vw,108px);line-height:.95;letter-spacing:-.048em;font-weight:450;color:var(--ink);max-width:15ch;text-wrap:balance}
.uca-dek{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(20px,5vw,80px);margin-top:clamp(24px,3.4vw,44px);align-items:end}
.uca-dek p{margin:0;font-size:clamp(19px,2vw,26px);line-height:1.4;letter-spacing:-.012em;color:var(--muted);max-width:32ch}
.uca-who{border-top:1px solid var(--ink);padding-top:12px;line-height:1.7}
.uca-who b{display:block;color:var(--ink);font-weight:600}
.uca-art{height:clamp(240px,42vw,560px);margin:0}
.uca-art img{display:block;width:100%;height:100%;object-fit:cover;border:1px solid var(--line)}
.uca-art figcaption{font-family:var(--mono);font-size:10px;line-height:1.6;color:var(--muted);padding:10px 0 0}
.uca-step .uca-art{height:clamp(200px,32vw,380px)}

/* ---------- article: body grid ---------- */
.uca-sec{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(20px,4vw,72px);padding:clamp(48px,7vw,104px) 0 0}
.uca-rail{position:sticky;top:88px;align-self:start;border-top:1px solid var(--ink);padding-top:12px}
.uca-rail b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);font-weight:600}
.uca-rail span{display:block;margin-top:6px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);line-height:1.6}
.uca-prose p{margin:0 0 1.1em;font-size:clamp(18px,1.5vw,21px);line-height:1.62;color:#26272a;max-width:60ch}
.uca-prose p:first-child{font-size:clamp(22px,2.5vw,34px);line-height:1.3;letter-spacing:-.02em;color:var(--ink);max-width:28ch;margin-bottom:.9em}

/* pull quote band */
.uca-quote{margin:clamp(48px,7vw,104px) 0 0;background:var(--ink);color:#fff;padding:clamp(48px,8vw,120px) 0;position:relative;overflow:hidden}
.uca-quote blockquote{margin:0;font-size:clamp(30px,5.2vw,76px);line-height:1.02;letter-spacing:-.04em;font-weight:500;max-width:18ch;text-wrap:balance}
.uca-quote .ucs-mono{color:rgba(255,255,255,.55);margin-bottom:26px;display:block}
.uca-quote::after{content:"";position:absolute;right:-4vw;top:0;bottom:0;width:38%;opacity:.5;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.16) 0 1px,transparent 1px 9px)}

/* costs */
.uca-costs{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.uca-costs li{display:grid;grid-template-columns:64px 1fr;align-items:baseline;gap:12px;padding:22px 0;border-bottom:1px solid var(--line);font-size:clamp(20px,2.3vw,31px);line-height:1.2;letter-spacing:-.022em;color:var(--ink)}
.uca-costs li span{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--faint)}

/* turn */
.uca-turn{margin:clamp(56px,8vw,120px) 0 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);overflow:hidden;white-space:nowrap}
.uca-turn div{display:inline-block;padding:16px 0;font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink);animation:ucaTick 38s linear infinite}
.uca-turn span{margin:0 28px;color:var(--faint)}
@keyframes ucaTick{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.uca-turn div{animation:none}}

/* steps */
.uca-steps{display:flex;flex-direction:column;gap:clamp(40px,6vw,88px)}
.uca-step{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(20px,4vw,64px);align-items:center}
.uca-step:nth-child(even) .uca-step-tx{order:2}
.uca-step-n{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.uca-step h3{margin:12px 0 14px;font-size:clamp(26px,3.2vw,44px);line-height:1.04;letter-spacing:-.035em;font-weight:500;color:var(--ink)}
.uca-step p{margin:0;font-size:clamp(17px,1.4vw,19.5px);line-height:1.6;color:#2d2e31;max-width:46ch}

/* app mocks: built from Luminair's own interface pieces */
.uca-mock{background:var(--bg-2);border:1px solid var(--line);padding:clamp(16px,2.6vw,36px);position:relative}
.uca-mock::before{content:attr(data-cap);position:absolute;left:clamp(16px,2.6vw,36px);top:10px;font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.uca-win{background:#fff;border:1px solid var(--ink);box-shadow:10px 10px 0 0 var(--ink);margin-top:16px}
.uca-win-h{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.uca-win-h i{width:7px;height:7px;background:var(--ink);display:block}
.uca-win-h em{margin-left:auto;font-style:normal;font-family:inherit;font-size:inherit;letter-spacing:inherit;color:var(--faint)}
.uca-rows{list-style:none;margin:0;padding:6px 0}
.uca-rows li{display:flex;align-items:center;gap:12px;padding:11px 16px;font-size:14.5px;color:var(--ink);line-height:1.35}
.uca-rows li + li{border-top:1px solid var(--line-2)}
.uca-rows li small{margin-left:auto;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);white-space:nowrap}
.uca-rows .k{font-family:var(--mono);font-size:10.5px;color:var(--faint);width:22px;flex:none}
.uca-rows li.cur{background:var(--ink);color:#fff}
.uca-rows li.cur small,.uca-rows li.cur .k{color:rgba(255,255,255,.6)}
.uca-ask{padding:18px 16px 16px}
.uca-ask-t{min-height:5.2em;font-size:clamp(16px,1.5vw,19px);line-height:1.42;color:var(--ink);letter-spacing:-.01em}
.uca-ask-t::after{content:"";display:inline-block;width:8px;height:1.05em;background:var(--ink);vertical-align:-3px;margin-left:2px;animation:ucaBlink 1s steps(1) infinite}
@keyframes ucaBlink{50%{opacity:0}}
.uca-ask-f{display:flex;align-items:center;gap:8px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line-2)}
.uca-pill{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--line);padding:5px 8px;color:var(--muted)}
.uca-send{margin-left:auto;background:var(--ink);color:#fff;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;padding:7px 12px}
.uca-flow li .box{width:14px;height:14px;border:1px solid var(--ink);flex:none;position:relative;transition:background .3s}
.uca-flow li.done .box{background:var(--ink)}
.uca-flow li.done small{color:var(--ink)}
.uca-flow li small::before{content:"waiting"}
.uca-flow li.run small::before{content:"running"}
.uca-flow li.done small::before{content:"done"}
.uca-flow li.run .box{animation:ucaBlink .7s steps(1) infinite}

/* journal note + payoff */
.uca-pay{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,4vw,64px);align-items:center}
.uca-pay p{margin:0;font-size:clamp(22px,2.5vw,34px);line-height:1.3;letter-spacing:-.02em;color:var(--ink);max-width:24ch}
.uca-note{background:#fff;border:1px solid var(--ink);box-shadow:10px 10px 0 0 var(--ink);padding:22px 24px 26px;transform:rotate(-1.2deg);transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.uca-note:hover{transform:rotate(0)}
.uca-note h4{margin:8px 0 14px;font-size:20px;letter-spacing:-.02em;font-weight:600;color:var(--ink)}
.uca-note ul{margin:0;padding:0;list-style:none}
.uca-note li{padding:10px 0 10px 18px;border-top:1px solid var(--line-2);font-size:15.5px;line-height:1.45;color:#2d2e31;position:relative}
.uca-note li::before{content:"";position:absolute;left:0;top:18px;width:8px;height:1px;background:var(--ink)}

/* who decides */
.uca-you{border:1px solid var(--ink);padding:clamp(22px,3.4vw,44px);background:#fff}
.uca-you p{margin:0;font-size:clamp(18px,1.6vw,22px);line-height:1.5;color:var(--ink);max-width:56ch}
.uca-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.uca-chips a,.uca-chips span{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--line);padding:8px 11px;color:var(--ink);text-decoration:none;background:#fff}
.uca-chips a:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.uca-chips span{color:var(--muted);background:transparent}
.uca-used{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,4vw,64px)}

/* cta + next */
.uca-cta{margin:clamp(64px,9vw,130px) 0 0;background:var(--ink);color:#fff;padding:clamp(48px,7vw,104px) 0}
.uca-cta h2{margin:0;font-size:clamp(34px,6vw,88px);line-height:.96;letter-spacing:-.045em;font-weight:450;max-width:14ch;color:#fff}
.uca-cta p{margin:22px 0 0;color:rgba(255,255,255,.7);font-size:clamp(17px,1.5vw,20px);line-height:1.5;max-width:44ch}
.uca-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.uca-btn{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;padding:16px 24px;text-decoration:none;background:#fff;color:var(--ink);border:1px solid #fff}
.uca-btn:hover{background:transparent;color:#fff}
.uca-btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.uca-btn.ghost:hover{border-color:#fff}
.uca-next{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-bottom:1px solid var(--line)}
.uca-next a{background:var(--paper);padding:clamp(24px,4vw,56px) var(--pad);text-decoration:none;color:var(--ink);transition:background .2s,color .2s}
.uca-next a:hover{background:#fff}
.uca-next a:last-child{text-align:right}
.uca-next b{display:block;margin-top:12px;font-size:clamp(20px,2.4vw,34px);line-height:1.08;letter-spacing:-.03em;font-weight:500}
.ucs + footer{margin-top:0}
.ucs + footer::before{display:none}

@media (max-width:900px){
  .uci-grid{grid-template-columns:1fr 1fr}
  .uci-lede,.uca-dek,.uca-pay,.uca-used{grid-template-columns:1fr}
  .uca-sec{grid-template-columns:1fr}
  .uca-rail{position:static}
  .uca-rail span{display:none}
  .uca-step{grid-template-columns:1fr}
  .uca-step:nth-child(even) .uca-step-tx{order:0}
}
@media (max-width:600px){
  .uci-grid{grid-template-columns:1fr}
  .uci-card.big{grid-column:auto}
  .uci-card.big .ucs-art{min-height:0;aspect-ratio:16/9;flex:none}
  .uci-path{grid-template-columns:1fr 1fr;row-gap:14px}
  .uci-filter{position:static}
  .uca-costs li{grid-template-columns:40px 1fr}
  .uca-next{grid-template-columns:1fr}
  .uca-next a:last-child{text-align:left}
  .uca-win,.uca-note{box-shadow:6px 6px 0 0 var(--ink)}
}