/* ============================================================
   refineyoursystem.com — Josh Joy
   Shared stylesheet
   ============================================================ */
:root{
  --bg:#0a0f1c; --bg2:#0c1220; --surface:#101a2e; --surface2:#152038;
  --line:#22304d; --line-soft:#1a2740;
  --text:#e7eef9; --muted:#9aabc7; --faint:#65769a;
  --cyan:#38bdf8; --cyan-deep:#0ea5e9; --cyan-glow:rgba(56,189,248,.5);
  --gold:#f6c560; --amber:#f0a84e; --green:#34d399;
  --display:'Space Grotesk',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono)}

/* reveal-on-scroll */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* shared type */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);display:inline-flex;align-items:center;gap:10px;margin:0 0 22px}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--cyan);opacity:.7}
h2.section-title{font-family:var(--display);font-weight:600;letter-spacing:-.01em;font-size:clamp(28px,4vw,40px);line-height:1.1;margin:0 0 18px}
.lead{color:var(--muted);font-size:clamp(16px,1.6vw,18px);max-width:64ch;margin:0}
.center{text-align:center}
.center .eyebrow{justify-content:center}
.center .lead{margin-left:auto;margin-right:auto}

/* buttons */
.btn{font-family:var(--mono);font-size:12.5px;letter-spacing:.03em;border:1px solid var(--cyan);color:var(--cyan);padding:9px 16px;border-radius:8px;transition:.18s;background:rgba(56,189,248,.06);display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.btn:hover{background:var(--cyan);color:#04121f}
.btn-solid{background:var(--cyan);color:#04121f;border-color:var(--cyan)}
.btn-solid:hover{background:#7dd3fc;transform:translateY(-2px);box-shadow:0 12px 30px -12px var(--cyan-glow)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(56,189,248,.06)}
.btn .ar{transition:transform .18s}
.btn:hover .ar{transform:translateX(4px)}
/* oversized primary CTA */
.btn-xl{font-size:15.5px;padding:17px 34px;border-radius:11px;letter-spacing:.04em}
.btn-xl .ar{font-size:17px}
.btn-solid.btn-xl{box-shadow:0 14px 36px -14px var(--cyan-glow)}
.btn-solid.btn-xl:hover{box-shadow:0 20px 48px -12px var(--cyan-glow);transform:translateY(-3px)}

/* nav */
.topbar{position:sticky;top:0;z-index:50;background:rgba(10,15,28,.82);border-bottom:1px solid var(--line-soft);backdrop-filter:blur(12px)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:var(--mono);font-size:13px;letter-spacing:.04em;color:var(--text);display:flex;align-items:center;gap:9px}
.brand b{font-weight:700}
.brand span{color:var(--faint)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 var(--cyan-glow);animation:pulse 2.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 var(--cyan-glow)}70%{box-shadow:0 0 0 8px rgba(56,189,248,0)}100%{box-shadow:0 0 0 0 rgba(56,189,248,0)}}
.nav{display:flex;align-items:center;gap:26px;font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:var(--faint)}
.nav a{transition:color .18s}
.nav a:hover,.nav a.active{color:var(--cyan)}
.menu-btn{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:6px}
.menu-btn svg{display:block}
@media(max-width:780px){
  .nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:rgba(10,15,28,.98);border-bottom:1px solid var(--line-soft);padding:8px 0;transform:translateY(-130%);transition:transform .28s;font-size:14px}
  .nav.open{transform:none}
  .nav a{padding:14px 28px}
  .nav .btn{margin:10px 28px;justify-content:center}
  .menu-btn{display:block}
}

/* generic section */
section{padding:84px 0}
.page-head{padding:74px 0 16px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-soft),transparent)}

/* hero */
.hero{position:relative;padding:90px 0 56px;overflow:hidden}
.hero.short{padding:74px 0 40px}
.hero .glow{position:absolute;inset:0;pointer-events:none}
.hero .glow::before{content:"";position:absolute;width:760px;height:520px;right:-120px;top:-160px;border-radius:50%;background:radial-gradient(closest-side,rgba(56,189,248,.20),transparent 70%);filter:blur(8px);animation:drift1 16s ease-in-out infinite alternate}
.hero .glow::after{content:"";position:absolute;width:600px;height:460px;left:-160px;top:40px;border-radius:50%;background:radial-gradient(closest-side,rgba(14,165,233,.12),transparent 70%);animation:drift2 20s ease-in-out infinite alternate}
@keyframes drift1{from{transform:translate(0,0)}to{transform:translate(-60px,40px)}}
@keyframes drift2{from{transform:translate(0,0)}to{transform:translate(50px,-30px)}}
.hero .grid{position:absolute;inset:0;opacity:.6;pointer-events:none;background-image:radial-gradient(rgba(56,189,248,.22) 1px,transparent 1.7px);background-size:30px 30px;-webkit-mask-image:radial-gradient(820px 520px at 72% 6%,#000 0%,transparent 70%);mask-image:radial-gradient(820px 520px at 72% 6%,#000 0%,transparent 70%)}
@media(prefers-reduced-motion:reduce){.hero .glow::before,.hero .glow::after{animation:none}}
.hero .wrap{position:relative;z-index:1}
.hero h1{font-family:var(--display);font-weight:700;letter-spacing:-.025em;font-size:clamp(34px,6vw,62px);line-height:1.04;margin:0 0 22px;max-width:19ch}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero-sub{color:var(--muted);font-size:clamp(16px,1.7vw,19px);max-width:62ch;margin:0 0 30px}
.hero-sub b{color:var(--text);font-weight:600}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.cta-row.tight{margin-bottom:0}
.cta-row .btn{font-size:13.5px;padding:12px 22px}

/* metrics */
.metrics{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line-soft);border-radius:12px;overflow:hidden;background:rgba(16,26,46,.5);max-width:820px}
.metric{flex:1 1 0;min-width:160px;padding:18px 22px;border-right:1px solid var(--line-soft)}
.metric:last-child{border-right:0}
.metric .num{font-family:var(--display);font-weight:600;font-size:26px;color:var(--text);line-height:1}
.metric .num em{font-style:normal;color:var(--cyan)}
.metric .lab{font-size:12px;color:var(--faint);margin-top:9px;line-height:1.35}
@media(max-width:580px){.metric{flex-basis:50%;border-bottom:1px solid var(--line-soft)}.metric:nth-child(2){border-right:0}}

/* browser window */
.window{margin-top:48px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface);box-shadow:0 30px 80px -30px rgba(0,0,0,.7),0 0 0 1px rgba(56,189,248,.04);position:relative}
.window-bar{display:flex;align-items:center;gap:8px;padding:11px 15px;background:#0e1626;border-bottom:1px solid var(--line-soft)}
.tl{width:11px;height:11px;border-radius:50%;background:#33405c}
.urlchip{margin-left:12px;font-family:var(--mono);font-size:11.5px;color:var(--faint);background:#0a1220;border:1px solid var(--line-soft);border-radius:6px;padding:4px 12px;display:flex;gap:8px;align-items:center}
.urlchip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);opacity:.85}
.window img,.window video{display:block;width:100%;height:auto}
.shotrow{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:16px}
.shotcap{font-size:13.5px;color:var(--muted);margin:0;max-width:62ch}
.badge{font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;color:var(--amber);background:rgba(240,168,78,.10);border:1px solid rgba(240,168,78,.4);border-radius:999px;padding:6px 13px;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 0 rgba(240,168,78,.5);animation:pulseA 2.6s infinite}
@keyframes pulseA{0%{box-shadow:0 0 0 0 rgba(240,168,78,.5)}70%{box-shadow:0 0 0 7px rgba(240,168,78,0)}100%{box-shadow:0 0 0 0 rgba(240,168,78,0)}}

/* problem block */
.problem .wrap{max-width:820px}
.problem p{font-size:clamp(18px,2vw,23px);line-height:1.6;color:var(--text);font-weight:450;margin:0}
.problem p .acc{color:var(--cyan)}

/* services cards */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:42px}
@media(max-width:820px){.svc-grid{grid-template-columns:1fr}}
.svc{border:1px solid var(--line-soft);border-radius:14px;padding:26px 24px;background:var(--bg2);position:relative;transition:.22s;overflow:hidden;display:block}
.svc::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--cyan),transparent);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.svc:hover{border-color:rgba(56,189,248,.35);transform:translateY(-4px);box-shadow:0 24px 50px -28px rgba(0,0,0,.8)}
.svc:hover::before{transform:scaleX(1)}
.svc .ic{width:44px;height:44px;border-radius:11px;background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.25);display:flex;align-items:center;justify-content:center;color:var(--cyan);font-family:var(--mono);font-weight:700;margin-bottom:18px;transition:.22s}
.svc:hover .ic{background:rgba(56,189,248,.18);box-shadow:0 0 22px -6px var(--cyan-glow)}
.svc h3{font-family:var(--display);font-weight:600;font-size:18px;margin:0 0 10px;color:var(--text)}
.svc p{color:var(--muted);font-size:14.5px;margin:0}
.svc .more{font-family:var(--mono);font-size:12px;color:var(--cyan);margin-top:16px;display:inline-flex;gap:6px;align-items:center}
.svc .more .ar{transition:transform .18s}
.svc:hover .more .ar{transform:translateX(4px)}

/* flagship strip */
.flag{background:var(--bg2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);position:relative;overflow:hidden}
.flag::before{content:"";position:absolute;width:620px;height:480px;right:-140px;top:-80px;border-radius:50%;background:radial-gradient(closest-side,rgba(52,211,153,.08),transparent 70%);pointer-events:none}
.flag-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:center;position:relative;z-index:1}
@media(max-width:820px){.flag-grid{grid-template-columns:1fr;gap:30px}}
.tag{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin-bottom:14px;display:inline-flex;align-items:center;gap:9px}
.tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green)}
.flag h2{font-family:var(--display);font-weight:600;font-size:clamp(26px,3.5vw,34px);line-height:1.12;margin:0 0 16px}
.flag p{color:var(--muted);font-size:15.5px;margin:0 0 14px}
.flag p b{color:var(--text)}
.reslist{list-style:none;padding:0;margin:18px 0 24px;display:flex;flex-direction:column;gap:12px}
.reslist li{position:relative;padding-left:26px;color:var(--muted);font-size:15px}
.reslist li::before{content:"";position:absolute;left:0;top:.45em;width:9px;height:9px;background:var(--green);box-shadow:0 0 10px -1px rgba(52,211,153,.6)}
.reslist li b{color:var(--text)}

/* approach / 2-col list */
.appr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px}
@media(max-width:680px){.appr-grid{grid-template-columns:1fr}}
.appr{border-left:2px solid var(--cyan);padding:8px 0 8px 22px;transition:.2s}
.appr:hover{border-left-color:var(--green);transform:translateX(3px)}
.appr h4{font-family:var(--display);font-weight:600;font-size:17px;margin:0 0 8px}
.appr p{color:var(--muted);font-size:14.5px;margin:0}

/* numbered process steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:42px}
@media(max-width:820px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.step{border:1px solid var(--line-soft);border-radius:14px;padding:24px 22px;background:var(--bg2)}
.step .n{font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em;margin-bottom:14px}
.step h4{font-family:var(--display);font-weight:600;font-size:17px;margin:0 0 8px}
.step p{color:var(--muted);font-size:14px;margin:0}

/* about layout */
.about-grid{display:grid;grid-template-columns:300px 1fr;gap:50px;align-items:start}
@media(max-width:820px){.about-grid{grid-template-columns:1fr;gap:34px}}
.portrait{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface);aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;position:relative}
.portrait img{width:100%;height:100%;object-fit:cover;object-position:center top;display:block}
.portrait .mono-mark{font-family:var(--display);font-weight:700;font-size:96px;color:var(--cyan);opacity:.85}
.portrait .ph{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-family:var(--mono);font-size:10.5px;color:var(--faint)}
.prose p{color:var(--muted);font-size:16px;margin:0 0 18px}
.prose p b{color:var(--text);font-weight:600}
.prose h3{font-family:var(--display);font-weight:600;font-size:21px;margin:34px 0 12px}
.editable{border-left:2px dashed var(--amber);background:rgba(240,168,78,.05);padding:12px 16px;border-radius:0 8px 8px 0;color:var(--muted);font-size:14.5px}
.editable b{color:var(--amber);font-family:var(--mono);font-size:12px;letter-spacing:.04em}

/* tag chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{font-family:var(--mono);font-size:12px;color:var(--muted);border:1px solid var(--line);background:var(--bg2);border-radius:999px;padding:7px 14px}

/* services detail blocks */
.svc-detail{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;padding:64px 0;border-bottom:1px solid var(--line-soft);align-items:start}
.svc-detail:last-child{border-bottom:0}
@media(max-width:820px){.svc-detail{grid-template-columns:1fr;gap:24px}}
.svc-detail .num-big{font-family:var(--display);font-weight:700;font-size:64px;color:var(--surface2);line-height:.9;-webkit-text-stroke:1px var(--line);}
.svc-detail h3{font-family:var(--display);font-weight:600;font-size:clamp(22px,3vw,28px);margin:14px 0 6px}
.svc-detail .fit{font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.04em;margin-top:4px}
.svc-detail p{color:var(--muted);font-size:15.5px;margin:0 0 16px}
.svc-detail p b{color:var(--text)}

/* case study */
.cs-meta{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line-soft);border-radius:12px;overflow:hidden;background:rgba(16,26,46,.5);margin-top:8px}
.cs-meta .m{flex:1 1 0;min-width:140px;padding:16px 20px;border-right:1px solid var(--line-soft)}
.cs-meta .m:last-child{border-right:0}
.cs-meta .k{font-family:var(--mono);font-size:11px;color:var(--faint);text-transform:uppercase;letter-spacing:.1em;margin-bottom:7px}
.cs-meta .v{font-size:14.5px;color:var(--text)}
@media(max-width:580px){.cs-meta .m{flex-basis:50%;border-bottom:1px solid var(--line-soft)}}
.cs-block{max-width:760px}
.cs-block h2{font-family:var(--display);font-weight:600;font-size:clamp(24px,3.2vw,32px);margin:0 0 16px}
.cs-block p{color:var(--muted);font-size:16px;margin:0 0 18px}
.cs-block p b{color:var(--text)}

/* module rack */
.rack{border:1px solid var(--line-soft);border-radius:14px;overflow:hidden;margin-top:30px;background:var(--bg2)}
.rack-head{display:flex;justify-content:space-between;align-items:center;padding:14px 22px;background:#0e1626;border-bottom:1px solid var(--line-soft);font-size:13px;color:var(--muted)}
.rack-head .ct{font-family:var(--mono);font-size:12px;color:var(--green);letter-spacing:.04em}
.mod{display:grid;grid-template-columns:46px 220px 1fr;gap:18px;align-items:baseline;padding:16px 22px;border-bottom:1px solid var(--line-soft);position:relative;transition:background .15s}
.mod:last-child{border-bottom:0}
.mod::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--cyan);transform:scaleY(0);transform-origin:top;transition:transform .2s}
.mod:hover{background:rgba(56,189,248,.04)}
.mod:hover::before{transform:scaleY(1)}
.mod .id{font-family:var(--mono);font-size:12px;color:var(--faint)}
.mod .nm{font-weight:600;font-size:15px;color:var(--text)}
.mod .ds{color:var(--muted);font-size:14.5px}
@media(max-width:640px){.mod{grid-template-columns:36px 1fr;gap:5px 14px}.mod .ds{grid-column:1/-1;padding-left:50px}}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:start}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr;gap:34px}}
.contact-card{border:1px solid var(--line-soft);border-radius:16px;background:var(--bg2);padding:30px 28px}
.contact-link{display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid var(--line-soft);border-radius:12px;margin-bottom:14px;transition:.18s;background:var(--surface)}
.contact-link:hover{border-color:rgba(56,189,248,.4);transform:translateY(-2px)}
.contact-link .ci{width:42px;height:42px;border-radius:11px;background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.25);display:flex;align-items:center;justify-content:center;color:var(--cyan);flex-shrink:0}
.contact-link .ct{display:block;font-family:var(--mono);font-size:11px;color:var(--faint);text-transform:uppercase;letter-spacing:.1em}
.contact-link .cv{display:block;font-size:15.5px;color:var(--text);margin-top:3px}
.checklist{list-style:none;padding:0;margin:18px 0 0}
.checklist li{position:relative;padding-left:26px;margin-bottom:13px;color:var(--muted);font-size:15px}
.checklist li::before{content:"";position:absolute;left:0;top:.4em;width:9px;height:9px;background:var(--cyan);box-shadow:0 0 10px -1px var(--cyan-glow)}

/* cta band */
.ctaband{position:relative;overflow:hidden;text-align:center}
.ctaband::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 360px at 50% 0%,rgba(56,189,248,.16),transparent 60%);pointer-events:none}
.ctaband .wrap{position:relative;z-index:1}
.ctaband h2{font-family:var(--display);font-weight:600;font-size:clamp(28px,4vw,42px);margin:0 0 16px}
.ctaband p{color:var(--muted);font-size:17px;max-width:54ch;margin:0 auto 30px}
.ctaband .cta-row{justify-content:center}

/* home — case-study teaser card */
.casecard{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:linear-gradient(155deg,var(--surface) 0%,var(--bg2) 100%);box-shadow:0 30px 70px -32px rgba(0,0,0,.85);transition:.22s;position:relative}
.casecard:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.4);box-shadow:0 42px 84px -34px rgba(0,0,0,.95)}
.casecard-top{display:flex;justify-content:space-between;align-items:center;padding:15px 22px;border-bottom:1px solid var(--line-soft);background:#0e1626}
.cc-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.cc-tag{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--green);background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.4);border-radius:999px;padding:4px 11px}
.casecard-body{display:grid;grid-template-columns:repeat(3,1fr)}
.cc-stat{padding:26px 18px;text-align:center;border-right:1px solid var(--line-soft)}
.cc-stat:last-child{border-right:0}
.cc-stat b{display:block;font-family:var(--display);font-weight:700;font-size:clamp(26px,4vw,34px);color:var(--cyan);line-height:1;text-shadow:0 0 28px rgba(56,189,248,.35)}
.cc-stat span{display:block;font-size:12.5px;color:var(--faint);margin-top:10px;line-height:1.35}
.casecard-cta{display:flex;align-items:center;justify-content:center;gap:9px;padding:18px;border-top:1px solid var(--line-soft);font-family:var(--mono);font-size:13px;color:var(--cyan);background:rgba(56,189,248,.05)}
.casecard-cta .ar{transition:transform .18s}
.casecard:hover .casecard-cta .ar{transform:translateX(4px)}
@media(max-width:480px){.cc-stat{padding:20px 8px}}

/* what's inside — flip deck */
.deck-top{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
.section-title .snip{color:var(--cyan);text-shadow:0 0 34px rgba(56,189,248,.55);font-weight:700}
.section-title em{font-style:normal;color:var(--text)}
.deck-count{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--faint);text-transform:uppercase;white-space:nowrap}
.deck-count span{color:var(--cyan)}

.deck{position:relative;display:flex;align-items:center;gap:10px;margin-top:26px}
.deck-stage{position:relative;flex:1 1 auto;min-width:0;height:332px;perspective:1900px}
.deck-track{position:relative;width:100%;height:100%;transform-style:preserve-3d}
.page{position:absolute;top:0;left:50%;width:min(560px,86%);height:100%;
  border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(155deg,var(--surface) 0%,var(--bg2) 100%);
  padding:30px 34px;
  box-shadow:0 34px 80px -34px rgba(0,0,0,.92),inset 0 1px 0 rgba(255,255,255,.03);
  transform:translateX(-50%);
  transition:transform .58s cubic-bezier(.34,.8,.25,1),opacity .45s ease,filter .45s ease;
  backface-visibility:hidden;will-change:transform,opacity}
.page::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--cyan),transparent);opacity:.75}
.page.peek{cursor:pointer;filter:saturate(.65) brightness(.85)}
.page-id{font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--cyan)}
.page-nm{font-family:var(--display);font-weight:600;font-size:clamp(20px,2.6vw,26px);margin:10px 0 20px;color:var(--text);line-height:1.15}
.page-ds{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.page-ds li{position:relative;padding-left:24px;color:var(--muted);font-size:15.5px;line-height:1.5}
.page-ds li::before{content:"";position:absolute;left:0;top:.5em;width:8px;height:8px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 10px -1px var(--cyan-glow)}

.deck-nav{flex:0 0 auto;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:var(--bg2);color:var(--text);font-family:var(--display);font-size:24px;line-height:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.18s;z-index:40;padding:0 0 4px}
.deck-nav:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(56,189,248,.08);transform:translateY(-2px)}
.deck-nav:disabled{opacity:.28;cursor:default;transform:none;border-color:var(--line);color:var(--text);background:var(--bg2)}

.deck-dots{display:flex;justify-content:center;align-items:center;gap:9px;margin-top:28px}
.deck-dots button{width:9px;height:9px;border-radius:50%;border:0;padding:0;cursor:pointer;background:var(--line);transition:.22s}
.deck-dots button:hover{background:var(--faint)}
.deck-dots button.on{background:var(--cyan);width:26px;border-radius:5px;box-shadow:0 0 12px -2px var(--cyan-glow)}

@media(max-width:640px){
  .deck-stage{height:390px}
  .page{width:90%;padding:26px 24px}
  .deck-nav{width:40px;height:40px;font-size:21px}
}

/* code showcase */
.codehead{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end}
@media(max-width:760px){.codehead{grid-template-columns:1fr;gap:20px}}
.loc{text-align:right;white-space:nowrap}
.loc-num{font-family:var(--display);font-weight:700;font-size:clamp(46px,7vw,72px);line-height:.85;color:var(--cyan);letter-spacing:-.03em;text-shadow:0 0 38px rgba(56,189,248,.35)}
.loc-lab{font-family:var(--mono);font-size:12px;color:var(--faint);letter-spacing:.04em;margin-top:10px}
@media(max-width:760px){.loc{text-align:left}}
.codeshow{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:38px}
@media(max-width:760px){.codeshow{grid-template-columns:1fr}}
.codewin{margin:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#0d1117;box-shadow:0 24px 60px -30px rgba(0,0,0,.9);transition:.22s}
.codewin:hover{transform:translateY(-3px);border-color:rgba(56,189,248,.3);box-shadow:0 30px 70px -30px rgba(0,0,0,1)}
.code-bar{display:flex;align-items:center;gap:7px;padding:9px 13px;background:#0e1626;border-bottom:1px solid var(--line-soft)}
.code-bar .tl{width:10px;height:10px;border-radius:50%;background:#33405c}
.code-file{margin-left:8px;font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.code-ln{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--cyan);background:rgba(56,189,248,.08);border:1px solid var(--line-soft);border-radius:6px;padding:3px 10px}
.codewin img{display:block;width:100%;height:auto}
.codewin figcaption{font-size:13px;color:var(--muted);padding:13px 16px;border-top:1px solid var(--line-soft);line-height:1.5}
.codewin figcaption b{color:var(--text);font-weight:600}

/* before / after comparison */
.compare{display:flex;flex-direction:column;gap:44px;margin-top:44px}
.cmp{border:1px solid var(--line-soft);border-radius:16px;background:var(--bg2);padding:24px 26px 30px;position:relative;overflow:hidden}
.cmp::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--amber),var(--green));opacity:.55}
.cmp-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.cmp-no{font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em}
.cmp-head h3{font-family:var(--display);font-weight:600;font-size:19px;margin:0;color:var(--text)}
.cmp-head p{color:var(--muted);font-size:14px;margin:0;flex:1 1 300px;min-width:0}
.cmp-newtag{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.4);border-radius:999px;padding:4px 11px}
.cmp-pair{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
.cmp.solo .cmp-pair{grid-template-columns:1fr;max-width:760px}
.cmp.solo::before{background:var(--cyan);opacity:.6}
@media(max-width:760px){.cmp-pair{grid-template-columns:1fr;gap:26px}}
.cmp-side{margin:0;min-width:0}
.cmp-frame{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface);box-shadow:0 20px 50px -28px rgba(0,0,0,.8);transition:.22s}
.cmp-frame:hover{transform:translateY(-3px);border-color:rgba(56,189,248,.3);box-shadow:0 26px 60px -28px rgba(0,0,0,.9)}
.cmp-bar{display:flex;align-items:center;gap:7px;padding:9px 13px;background:#0e1626;border-bottom:1px solid var(--line-soft)}
.cmp-bar .tl{width:10px;height:10px;border-radius:50%;background:#33405c}
.cmp-label{margin-left:8px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:3px 11px;border-radius:999px}
.before .cmp-label{color:var(--amber);background:rgba(240,168,78,.1);border:1px solid rgba(240,168,78,.4)}
.after .cmp-label{color:var(--green);background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.4)}
.cmp-frame img{display:block;width:100%;height:auto}
.cmp-side figcaption{font-size:13px;color:var(--muted);margin-top:12px;padding-left:2px;line-height:1.5}
.cmp-side figcaption b{color:var(--text);font-weight:600}

/* footer */
footer{border-top:1px solid var(--line-soft);padding:46px 0;background:var(--bg2)}
footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px}
footer .fb{font-family:var(--mono);font-size:13px;color:var(--muted)}
footer .fl{display:flex;gap:22px;font-family:var(--mono);font-size:12.5px;color:var(--faint)}
footer .fl a:hover{color:var(--cyan)}