/* Global Solar Kün — cinematic scroll site */
:root{
  --canvas:#0B1826;
  --panel:#12233A;
  --panel-2:#0E1D30;
  --accent:#FFB020;
  --accent-hover:#FFCF57;
  --accent-muted:rgba(255,176,32,.16);
  --ember:#FF6A1A;
  --sky:#2F7DBF;
  --text-primary:#F4EFE6;
  --text-secondary:#A9B7C6;
  --ink:#15242F;
  --line:rgba(244,239,230,.14);
  --line-strong:rgba(244,239,230,.38);
  --tshadow:0 1px 2px rgba(5,8,14,.95),0 3px 12px rgba(5,8,14,.78),0 10px 44px rgba(5,8,14,.8);
  --ease:cubic-bezier(.22,.61,.2,1);
  --ease-io:cubic-bezier(.65,0,.35,1);
  --radius:16px;
  --maxw:1180px;
  --font-d:'Unbounded',Verdana,sans-serif;
  --font-b:'Golos Text',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-m:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;overflow-x:clip}
body{
  background:var(--canvas);
  color:var(--text-primary);
  font-family:var(--font-b);
  font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
/* вход страницы отдан сплэш-заставке (.ldr в HTML) */
img{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--accent);color:#131313;padding:10px 18px;border-radius:0 0 10px 0;font-weight:600;text-decoration:none}
.skip:focus{left:0}

/* ambient environment layer */
.env{position:fixed;inset:0;z-index:-1;pointer-events:none;background:var(--canvas)}
.env::before{content:"";position:absolute;inset:-20%;
  background:radial-gradient(ellipse 55% 45% at 70% 8%,rgba(255,176,32,.08),transparent 60%),
             radial-gradient(ellipse 60% 50% at 20% 90%,rgba(47,125,191,.07),transparent 65%);
}
.env::after{content:"";position:absolute;inset:0;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
}
body.anim .env::before{animation:envdrift 90s var(--ease-io) infinite alternate -30s}
@keyframes envdrift{from{transform:translate3d(-2%,-1%,0) scale(1)}to{transform:translate3d(2%,2%,0) scale(1.06)}}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px clamp(16px,4vw,40px);
  background:linear-gradient(rgba(11,24,38,.82),rgba(11,24,38,.55) 70%,transparent);
}
.nav::before{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(rgba(11,24,38,.35),transparent);
  -webkit-mask-image:linear-gradient(#000 55%,transparent);mask-image:linear-gradient(#000 55%,transparent)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:30px;height:30px;color:var(--accent);flex:none}
.brand-word{font-family:var(--font-d);font-weight:700;font-size:13px;letter-spacing:.14em}
.brand-word em{font-style:italic;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:clamp(10px,2vw,26px)}
.nav-links a{text-decoration:none;font-size:14.5px;font-weight:500;color:var(--text-primary);opacity:.85;transition:opacity .25s var(--ease)}
.nav-links a:hover{opacity:1}
.nav-links a.btn-accent{color:#1A1509;opacity:1}
.lang{display:inline-flex;gap:2px;align-items:center;font-size:11.5px;letter-spacing:.08em;border:1px solid var(--line);border-radius:999px;padding:3px 6px}
.lang a,.lang .lang-cur{padding:3px 8px;border-radius:999px;text-decoration:none;color:var(--text-secondary)}
.lang a:hover{color:var(--accent-hover)}
.lang .lang-cur{background:var(--accent-muted);color:var(--accent-hover)}
@media (max-width:880px){.lang{align-self:flex-start;margin:6px 0 0 12px}}
.nav-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:10px;width:44px;height:40px;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:6px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-primary);transition:transform .3s var(--ease)}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
@media (max-width:880px){
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:100%;right:12px;left:12px;flex-direction:column;align-items:stretch;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;gap:4px;
    opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .3s var(--ease),transform .3s var(--ease),visibility 0s .3s}
  .nav.open .nav-links{opacity:1;visibility:visible;transform:none;transition:opacity .3s var(--ease),transform .3s var(--ease)}
  .nav-links a{padding:10px 12px;border-radius:10px}
  .nav-links a:hover{background:rgba(244,239,230,.06)}
  .nav-cta{margin-top:6px;text-align:center}
}

/* ---------- buttons ---------- */
.btn{display:inline-block;padding:13px 26px;border-radius:999px;text-decoration:none;font-weight:600;font-size:15.5px;border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
.btn-accent{background:var(--accent);color:#1A1509;text-shadow:none}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 30px -12px rgba(255,176,32,.55)}
.btn-ghost{border-color:var(--line-strong);color:var(--text-primary);background:rgba(11,24,38,.35)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-hover);transform:translateY(-2px)}
.btn-wide{width:100%;font-family:var(--font-b)}
@media (pointer:coarse){.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}.btn-wide{display:flex}.nav-toggle{height:44px}.seg-btn{min-height:44px}.footer-grid nav a{padding:10px 0}}

/* ---------- hero ---------- */
.hero{position:relative;height:560vh}
.stage{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.poster{position:absolute;inset:0;background-size:cover;background-position:center;transform:translateZ(0)}
#hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .8s var(--ease);will-change:transform;transform:translateZ(0)}
.stage.video-ready #hero-video{opacity:1}
.stage.video-failed #hero-video{display:none}
.scrim{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 120% 90% at 50% 45%,rgba(8,12,20,0) 45%,rgba(8,12,20,.5) 100%)}
.ring{position:absolute;right:26px;bottom:26px;width:34px;height:34px;color:var(--accent);transform:rotate(-90deg);opacity:.9;transition:opacity .4s var(--ease)}
.ring circle{transition:stroke-dashoffset .2s linear}
.stage.video-ready .ring,.stage.video-failed .ring{opacity:0}

.cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-secondary);font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-family:var(--font-m);opacity:0;transition:opacity .6s var(--ease)}
body.ready .cue{opacity:.8}
body.anim .cue svg{animation:cuebob 2.6s var(--ease-io) infinite -1.2s}
@keyframes cuebob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}
.stage.scrolled .cue{opacity:0}

/* bands: dark ink over the pale dawn sky, lifted by a light haze scrim */
.band{position:absolute;left:50%;top:20vh;transform:translateX(-50%);width:min(88vw,860px);text-align:center;opacity:0;pointer-events:none;visibility:hidden;
  color:var(--ink);--bshadow:0 1px 2px rgba(250,247,240,.92),0 3px 14px rgba(250,247,240,.62)}
.band.on{pointer-events:auto;visibility:visible}
.band::before{content:"";position:absolute;inset:-26% -18%;pointer-events:none;z-index:-1;
  opacity:calc(var(--k,1)*var(--k,1));
  background:linear-gradient(180deg,rgba(248,244,236,0) 0%,rgba(248,244,236,calc(var(--scrim-a,.84)*.9)) 16%,rgba(248,244,236,var(--scrim-a,.84)) 30%,rgba(248,244,236,var(--scrim-a,.84)) 70%,rgba(248,244,236,calc(var(--scrim-a,.84)*.9)) 84%,rgba(248,244,236,0) 100%);
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 12%,#000 88%,transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 12%,#000 88%,transparent 100%)}
.band-1{--scrim-a:.88}
.band-4{--scrim-a:.86;top:16vh}
.band-h{font-family:var(--font-d);font-weight:700;line-height:1.16;margin:.4em 0;text-shadow:var(--bshadow);font-size:clamp(26px,4.6vw,52px)}
.band-4 .band-h{font-size:clamp(24px,3.9vw,46px)}
.band-sub{font-size:clamp(16px,1.8vw,21px);color:var(--ink);text-shadow:var(--bshadow);margin:.5em auto;max-width:46ch}
.band-1 .band-sub{font-family:var(--font-d);font-weight:700;font-size:clamp(19px,2.6vw,30px)}
.band-1 .band-sub .w:last-child{border-bottom:4px solid var(--accent)}
.band-eyebrow{margin:0 auto 14px;display:inline-block}
.band-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:22px}
.band-cta .btn{text-shadow:none}
.band .btn-ghost{border-color:rgba(21,36,47,.6);color:var(--ink);background:rgba(250,247,240,.4)}
.band .btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.chip{display:inline-block;background:rgba(250,247,240,.88);border:1px solid rgba(21,36,47,.28);border-radius:10px;padding:6px 12px;color:var(--ink);text-shadow:none;font-size:13px;letter-spacing:.12em}
.mono{font-family:var(--font-m)}
.band-3 .band-sub{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;max-width:none}
.band-3 .chip{letter-spacing:.04em;font-size:14px}

/* split-text entrances: transform+opacity only, driven by --k */
.split .w{display:inline-block;white-space:nowrap}
.split .c{display:inline-block}
.band[data-entrance="drift"] .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.8,1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*-24px))}
.band[data-entrance="grid"] .c{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.6,1);opacity:var(--kc);transform:translateX(calc((1 - var(--kc))*var(--jx,0px)))}
.band[data-entrance="blur"] .blur-wrap{position:relative;display:block}
.band[data-entrance="blur"] .copy-soft{position:absolute;inset:0;filter:blur(10px);opacity:calc(1 - var(--k,0))}
.band[data-entrance="blur"] .copy-sharp{opacity:var(--k,0)}
.band[data-entrance="settle"] .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*3,1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*18px))}
.band[data-entrance="settle"] .settle-sub{opacity:var(--ks,0);transform:translateY(calc((1 - var(--ks,0))*14px))}
.band[data-entrance="settle"] .settle-cta{opacity:var(--kb,0);transform:translateY(calc((1 - var(--kb,0))*12px))}
.settle-brands{margin-top:28px}
.band[data-entrance="settle"] .settle-brands{opacity:var(--kb,0);transform:translateY(calc((1 - var(--kb,0))*10px))}

/* бегущая строка брендов */
.brandline{position:relative;max-width:min(88vw,760px);margin-left:auto;margin-right:auto;background:rgba(250,247,240,.9);border:1px solid rgba(21,36,47,.28);border-radius:999px;padding:11px 0;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent)}
.brand-track{display:flex;width:max-content}
body.anim .brand-track{animation:blscroll 28s linear infinite}
.brandline:hover .brand-track{animation-play-state:paused}
.bl-set{display:flex;align-items:center;gap:34px;padding-right:34px;flex:none}
.bl-item{display:inline-flex;align-items:center;flex:none;border-radius:6px}
.bl-item img{height:16px;width:auto;display:block;filter:brightness(0);opacity:.7;transition:opacity .25s var(--ease),transform .25s var(--ease)}
.bl-item:hover img,.bl-item:focus-visible img{opacity:1;transform:translateY(-1px)}
.bl-dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none;opacity:.75}
@keyframes blscroll{to{transform:translateX(-50%)}}
.static-hero .brandline{margin:18px 0 0;max-width:min(100%,560px)}
@media (prefers-reduced-motion:reduce){
  .brandline{mask-image:none;-webkit-mask-image:none;border-radius:18px;padding:11px 16px}
  .brand-track{width:auto}
  .bl-set{flex-wrap:wrap;gap:14px 22px;padding-right:0}
  .bl-set[aria-hidden]{display:none}
}

/* static hero (phones, reduced motion) */
.static-hero{display:none;position:absolute;inset:0;flex-direction:column;justify-content:flex-end;align-items:flex-start;text-align:left;color:var(--ink);
  padding:0 clamp(20px,6vw,64px) clamp(48px,9vh,96px);
  background:linear-gradient(rgba(248,244,236,.18),rgba(248,244,236,.66) 72%),url("hero-ending.jpg") center/cover no-repeat}
.static-hero .band-h{font-size:clamp(27px,7.2vw,44px);max-width:15ch;margin:.45em 0;text-shadow:var(--bshadow)}
.static-hero .band-sub{margin:0 0 1em;max-width:52ch;font-size:16px;color:var(--ink);text-shadow:var(--bshadow)}
.static-hero{--bshadow:0 1px 2px rgba(250,247,240,.92),0 3px 14px rgba(250,247,240,.62)}
@media (max-width: 720px),
       (orientation: portrait) and (max-width: 1024px),
       (orientation: portrait) and (pointer: coarse),
       (orientation: landscape) and (pointer: coarse) and (max-height: 560px),
       (prefers-reduced-motion: reduce){
  .hero{height:100vh;height:100svh}
  .band,.scrim,.ring,#hero-video,.poster,.cue{display:none}
  .static-hero{display:flex}
}
@media (max-height:560px){.cue{display:none}}

/* subpages */
.subhead{padding-top:clamp(120px,16vw,170px);padding-bottom:clamp(28px,4vw,44px)}
.crumbs{font-family:var(--font-m);font-size:12px;letter-spacing:.1em;color:var(--text-secondary);margin:0 0 18px}
.crumbs a{color:var(--text-secondary);text-decoration:none}
.crumbs a:hover{color:var(--accent-hover)}
.crumbs .sep{margin:0 8px;color:var(--accent)}
.subhead .h2{font-size:clamp(28px,4.4vw,48px)}
.subhead .band-cta{justify-content:flex-start;margin-top:26px}
.aud-more{margin:0 32px 28px}
.aud-more .btn{font-size:14px;padding:10px 20px}

/* ---------- sections ---------- */
.sec{position:relative;padding:clamp(72px,11vw,130px) clamp(18px,5vw,48px);scroll-margin-top:70px}
.wrap{max-width:var(--maxw);margin:0 auto}
.wrap-narrow{max-width:820px}
.eyebrow{color:var(--accent);letter-spacing:.22em;text-transform:uppercase;font-size:12.5px;margin:0 0 14px}
.h2{font-family:var(--font-d);font-weight:700;font-size:clamp(26px,3.6vw,42px);line-height:1.18;margin:0 0 .5em}
.h2.big{font-size:clamp(28px,4.2vw,50px);max-width:22ch}
.h2 em,.big em{font-style:normal;color:var(--accent)}
.h3{font-family:var(--font-d);font-weight:500;font-size:clamp(18px,2vw,23px);line-height:1.3;margin:0 0 .5em}
.h4{font-family:var(--font-d);font-weight:500;font-size:16.5px;line-height:1.35;margin:0 0 .45em}
.lede{color:var(--text-secondary);font-size:clamp(16.5px,1.6vw,19px);max-width:62ch;margin:0 0 1.6em}
.note{color:var(--text-secondary);font-size:14px;max-width:74ch;margin:1.6em 0 0}
.hint{color:var(--text-secondary);font-size:13.5px;margin:6px 0 0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(255,176,32,.35);box-shadow:0 24px 60px -30px rgba(0,0,0,.7)}

/* entrances (scroll choreography) */
.rise{opacity:0;transform:translateY(26px)}
.in>.rise,.in.rise{opacity:1;transform:none;transition:opacity .7s var(--ease),transform .7s var(--ease)}
.stagger>*{opacity:0;transform:translateY(24px)}
.stagger.in>*{opacity:1;transform:none;transition:opacity .65s var(--ease),transform .65s var(--ease)}
.stagger.in>:nth-child(2){transition-delay:.09s}
.stagger.in>:nth-child(3){transition-delay:.18s}
.stagger.in>:nth-child(4){transition-delay:.27s}
.stagger.in>:nth-child(5){transition-delay:.36s}
.stagger.in>:nth-child(6){transition-delay:.45s}
.stagger.in>:nth-child(7){transition-delay:.54s}
.stagger.in>:nth-child(8){transition-delay:.63s}
.stagger.done>:nth-child(n){transition-delay:0s}

/* intro */
.intro{padding-bottom:clamp(40px,6vw,70px)}
.stats{display:flex;gap:clamp(20px,4vw,56px);flex-wrap:wrap;margin-top:44px}
.stat{display:flex;flex-direction:column;gap:4px;border-left:2px solid var(--accent);padding-left:16px}
.stat-num{font-size:clamp(22px,2.6vw,32px);font-weight:500;color:var(--accent-hover)}
.stat-lbl{color:var(--text-secondary);font-size:14.5px}
.arc-divider{margin:clamp(40px,7vw,80px) auto 0;max-width:var(--maxw);color:var(--accent)}
.arc-divider svg{width:100%;height:auto;display:block}
.arc-caption{text-align:center;color:var(--text-secondary);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;margin:14px 0 0;opacity:0;transition:opacity 1s var(--ease) 1.4s}
.arc-divider.in .arc-caption{opacity:1}
.arc-path{stroke-dasharray:1300;stroke-dashoffset:1300}
.in .arc-path{stroke-dashoffset:0;transition:stroke-dashoffset 2.2s var(--ease-io)}
.arc-sun,.arc-glow{opacity:0}
.in .arc-sun,.in .arc-glow{opacity:1;transition:opacity .5s var(--ease)}
@supports (offset-path:path("M0,0 L10,10")){
  .arc-sun,.arc-glow{offset-path:path("M0,115 Q600,12 1200,115");offset-distance:0%}
  .in .arc-sun,.in .arc-glow{offset-distance:92%;transition:offset-distance 2.6s var(--ease-io),opacity .5s var(--ease)}
}

/* audience */
.aud-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.aud-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.aud-img{border-bottom:1px solid var(--line)}
.aud-img img{width:100%;height:210px;object-fit:cover;display:block}
.aud-card .badge{margin:24px 32px 12px;align-self:flex-start}
.aud-card .h3,.aud-card>p{margin-left:32px;margin-right:32px}
.aud-card .tags{margin:18px 32px 30px}

/* photo band */
.photo-band{position:relative;max-height:380px;overflow:hidden}
.photo-band img{width:100%;height:100%;object-fit:cover;display:block}
.photo-band::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--canvas) 0%,transparent 18%,transparent 82%,var(--canvas) 100%)}
/* ambient video bands + visualization cards */
.video-band{height:clamp(220px,36vw,380px)}
.video-band video{width:100%;height:100%;object-fit:cover;display:block}
.video-band.vb-tall{height:min(64svh,560px);max-height:none}
.band-tag{position:absolute;right:14px;bottom:12px;z-index:1;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(244,239,230,.78);background:rgba(11,24,38,.55);border:1px solid rgba(244,239,230,.18);border-radius:8px;padding:4px 10px;pointer-events:none}
.viz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.viz-card{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.viz-card video{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block;background:var(--panel-2)}
.viz-card figcaption{padding:12px 18px;font-size:11.5px;color:var(--text-secondary);letter-spacing:.06em;border-top:1px solid var(--line)}
.viz-note{font-size:12px;letter-spacing:.08em}
.badge{display:inline-block;background:var(--accent-muted);color:var(--accent-hover);border-radius:999px;padding:5px 14px;font-size:13px;font-weight:600;letter-spacing:.06em;margin:0 0 16px}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:18px 0 0}
.tags li{border:1px solid var(--line);border-radius:8px;padding:5px 10px;font-size:12.5px;color:var(--text-secondary)}

/* equipment */
.eq-group{margin:2.2em 0 .9em;color:var(--text-secondary);font-weight:500}
.eq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.eq-grid-4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.eq-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.eq-img{background:linear-gradient(170deg,#EFF1F4,#D8DDE4);padding:22px;display:flex;align-items:center;justify-content:center;min-height:200px}
.eq-img img{max-height:190px;width:auto;object-fit:contain}
.eq-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:6px;flex:1}
.eq-logo{height:18px;width:auto;align-self:flex-start;filter:brightness(0) invert(.92);opacity:.85;margin-bottom:4px}
.eq-body p{margin:0;color:var(--text-secondary);font-size:14.5px}
.wr{color:var(--accent-hover);font-size:12.5px;margin-top:auto;padding-top:8px}

/* docs */
.docs-lede{margin-bottom:1em}
.docs-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;max-width:760px}
.doc-row{display:flex;align-items:baseline;gap:14px;text-decoration:none;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;
  transition:border-color .3s var(--ease),transform .3s var(--ease)}
.doc-row:hover{border-color:rgba(255,176,32,.4);transform:translateX(4px)}
.doc-icon{color:var(--accent);font-size:11px;letter-spacing:.12em;border:1px solid rgba(255,176,32,.4);border-radius:6px;padding:2px 7px;flex:none}
.doc-name{color:var(--text-primary);font-size:15px;flex:1}
.doc-size{color:var(--text-secondary);font-size:12px;flex:none}

/* projects */
.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;align-items:stretch}
.proj-card{display:flex;flex-direction:column;gap:8px}
.proj-card p{color:var(--text-secondary);margin:0}
.proj-card .h3{margin:6px 0 4px}
.proj-main{grid-row:span 1;padding:0;overflow:hidden}
.proj-main .proj-img{margin:0 0 4px;border-bottom:1px solid var(--line)}
.proj-main .proj-img img{width:100%;height:210px;object-fit:cover}
.proj-main .badge,.proj-main .h3,.proj-main p{margin-left:26px;margin-right:26px}
.proj-main p:last-child{margin-bottom:24px}
.proj-next{border-style:dashed;border-color:var(--line-strong);justify-content:flex-start}
.proj-next .btn{margin-top:10px}
.refs{margin-top:40px;border:1px solid var(--line);border-radius:var(--radius);padding:0 22px}
.refs summary{cursor:pointer;padding:18px 0;font-weight:600;list-style:none;position:relative;padding-right:34px}
.refs summary::-webkit-details-marker{display:none}
.refs summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-family:var(--font-m);font-size:20px;color:var(--accent);transition:transform .3s var(--ease)}
.refs[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.refs .lede{margin-top:0}
.refs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;padding-bottom:22px}
.refs-grid figure{margin:0}
.refs-grid img{border-radius:10px;width:100%;height:170px;object-fit:cover}
.refs-grid figcaption{font-size:11.5px;color:var(--text-secondary);margin-top:8px;letter-spacing:.06em}

/* calculator */
.sec-calc{background:linear-gradient(180deg,transparent,rgba(18,35,58,.5) 20%,rgba(18,35,58,.5) 80%,transparent)}
.calc{padding:clamp(22px,3.5vw,40px)}
.calc-controls{display:flex;flex-direction:column;gap:22px;margin-bottom:28px}
.seg{display:inline-flex;background:var(--panel-2);border:1px solid var(--line);border-radius:999px;padding:4px;align-self:flex-start}
.seg-btn{border:0;background:transparent;color:var(--text-secondary);font-family:var(--font-b);font-size:15px;font-weight:600;padding:9px 22px;border-radius:999px;cursor:pointer;transition:background .25s var(--ease),color .25s var(--ease)}
.seg-btn[aria-pressed="true"]{background:var(--accent);color:#1A1509}
.calc-row label{display:block;font-weight:600;font-size:15px;margin-bottom:8px}
.range-line{display:flex;align-items:center;gap:18px}
.range-line output{min-width:130px;text-align:right;color:var(--accent-hover);font-size:17px}
input[type="range"]{flex:1;appearance:none;-webkit-appearance:none;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--accent) var(--fill,30%),rgba(244,239,230,.18) var(--fill,30%));outline-offset:6px}
input[type="range"]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--accent);border:3px solid #1A1509;cursor:pointer;transition:transform .2s var(--ease)}
input[type="range"]::-webkit-slider-thumb:hover{transform:scale(1.15)}
input[type="range"]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--accent);border:3px solid #1A1509;cursor:pointer}
.calc-row-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
input[type="number"],input[type="text"],input[type="tel"],select,textarea{
  width:100%;background:var(--panel-2);border:1px solid var(--line-strong);border-radius:10px;color:var(--text-primary);
  font-family:var(--font-b);font-size:16px;padding:12px 14px;transition:border-color .25s var(--ease)}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
input:focus:not(:focus-visible),select:focus:not(:focus-visible),textarea:focus:not(:focus-visible){outline:none}
.calc-results{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.res{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.res-lbl{color:var(--text-secondary);font-size:13px}
.res-val{font-size:clamp(18px,1.9vw,23px);color:var(--accent-hover)}
.res-pay .res-val{color:var(--text-primary)}
.calc-cta{margin:26px 0 0}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;padding:0;margin:0;counter-reset:step}
.step{position:relative;padding:24px 24px 26px}
.step-n{position:absolute;top:20px;right:22px;color:var(--accent);opacity:.55;font-size:15px}
.step p{color:var(--text-secondary);font-size:14.5px;margin:0}
.schema{margin:clamp(40px,6vw,64px) 0 0;color:var(--text-secondary)}
.schema svg{width:100%;height:auto;display:block;overflow:visible}
.schema-line{stroke-dasharray:1080;stroke-dashoffset:1080;opacity:.5}
.in .schema-line{stroke-dashoffset:0;transition:stroke-dashoffset 2s var(--ease-io)}
.schema-nodes text{font-family:var(--font-m);font-size:12px;fill:var(--text-primary);letter-spacing:.08em}
.schema-nodes circle{fill:var(--canvas);stroke:var(--accent);stroke-width:1.5}
.schema-nodes g{opacity:0;transform:translateY(6px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.in .schema-nodes g{opacity:1;transform:none}
.schema-caption{font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin-top:10px;color:var(--text-secondary)}

/* system diagram: how a solar plant works */
.sysdiagram{margin:clamp(30px,5vw,52px) 0 clamp(40px,6vw,64px);background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(16px,3vw,34px) clamp(10px,2vw,26px) 14px;overflow-x:auto}
.sysdiagram svg{width:100%;min-width:760px;height:auto;display:block;overflow:visible}
.sd-cap{font-family:var(--font-m);font-size:13px;letter-spacing:.1em;fill:var(--text-secondary)}
.sd-lbl{font-family:var(--font-m);font-size:14px;letter-spacing:.08em;fill:var(--text-primary)}
.sd-wire{stroke-dasharray:260;stroke-dashoffset:260}
.sysdiagram.in .sd-wire{stroke-dashoffset:0;transition:stroke-dashoffset 1.1s var(--ease-io) .35s}
.sd-node{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.sysdiagram.in .sd-node{opacity:1;transform:none}
.sysdiagram.in .n2{transition-delay:.18s}
.sysdiagram.in .n3{transition-delay:.34s}
.sysdiagram.in .n4{transition-delay:.5s}
.sysdiagram.in .n5{transition-delay:.66s}
.sysdiagram.in .n6{transition-delay:.78s}
.sd-inv rect{filter:drop-shadow(0 0 12px rgba(255,176,32,.3))}
.sd-dot{opacity:0;filter:drop-shadow(0 0 5px rgba(255,207,87,.9))}
.sysdiagram.in .sd-dot{opacity:1;transition:opacity .4s var(--ease) 1.2s}
@supports (offset-path:path("M0,0 L10,10")){
  .sysdiagram.in .d1{offset-path:path("M400,220 C460,220 470,190 530,190");animation:sdflow 2.4s linear infinite}
  .sysdiagram.in .d2{offset-path:path("M626,190 L700,190");animation:sdflow 1.6s linear infinite -.5s}
  .sysdiagram.in .d3{offset-path:path("M820,190 L890,190");animation:sdflow 1.6s linear infinite -1s}
  .sysdiagram.in .d4{offset-path:path("M986,182 C1010,170 1020,140 1048,128");animation:sdflow 2s linear infinite -.3s}
  .sysdiagram.in .d5{offset-path:path("M986,200 C1010,212 1020,240 1048,252");animation:sdflow 2s linear infinite -1.2s}
}
@supports not (offset-path:path("M0,0 L10,10")){
  .sd-dot{display:none}
  .sysdiagram.in .sd-wire{stroke-dasharray:8 10;stroke-dashoffset:0;animation:sddash 1.2s linear infinite}
}
@keyframes sdflow{from{offset-distance:0%}to{offset-distance:100%}}
@keyframes sddash{to{stroke-dashoffset:-18}}
.sysdiagram.in .sd-rays line{stroke-dasharray:3 9;animation:sddash 1.6s linear infinite}
.sysdiagram.in .sd-sun>circle:first-child{transform-origin:120px 70px;animation:sdpulse 4.5s var(--ease-io) infinite -2s}
@keyframes sdpulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.18);opacity:.75}}
.sysdiagram.in .sd-glint{animation:sdglint 5s var(--ease-io) infinite -1.5s}
@keyframes sdglint{0%,100%{opacity:.1}50%{opacity:.38}}
.sysdiagram.in .sd-window{animation:sdglint 4s var(--ease-io) infinite -.8s}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:8px 40px}
.why-item{padding:22px 0;border-top:1px solid var(--line)}
.why-item p{color:var(--text-secondary);margin:0;font-size:15px}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:0 22px;transition:border-color .3s var(--ease)}
.faq-item[open]{border-color:rgba(255,176,32,.4)}
.faq-item summary{cursor:pointer;padding:18px 34px 18px 0;font-weight:600;font-size:16.5px;list-style:none;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);font-family:var(--font-m);font-size:20px;color:var(--accent);transition:transform .3s var(--ease)}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{color:var(--text-secondary);margin:0 0 20px;max-width:66ch}

/* cta + form */
.sec-cta{background:linear-gradient(180deg,transparent,rgba(255,176,32,.05) 30%,rgba(255,176,32,.05) 75%,transparent)}
.cta-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:clamp(28px,5vw,64px);align-items:start}
.cta-points{list-style:none;padding:0;margin:0 0 28px;display:flex;flex-direction:column;gap:10px}
.cta-points li{padding-left:28px;position:relative}
.cta-points li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;background:radial-gradient(circle at 35% 35%,var(--accent-hover),var(--accent));box-shadow:0 0 10px rgba(255,176,32,.5)}
.contact-lines p{margin:6px 0;color:var(--text-secondary)}
.contact-link{color:var(--text-primary);font-weight:600;text-decoration-color:var(--accent);text-underline-offset:3px}
.contact-link:hover{color:var(--accent-hover)}
.lead-form{padding:clamp(22px,3vw,34px);display:flex;flex-direction:column;gap:16px;position:relative}
.f-row label{display:block;font-weight:600;font-size:14.5px;margin-bottom:7px}
.f-err{color:#FF8A5C;font-size:14px;margin:0}
.form-ok{position:absolute;inset:0;background:var(--panel);border-radius:var(--radius);display:flex;flex-direction:column;justify-content:center;padding:34px;gap:8px}
.form-ok[hidden]{display:none}
.form-ok p{color:var(--text-secondary);margin:0}
.lead-form .hint a{color:var(--text-secondary)}

/* footer */
.footer{border-top:1px solid var(--line);padding:clamp(44px,6vw,72px) clamp(18px,5vw,48px) 30px;background:var(--panel-2)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:36px}
.footer-grid p{color:var(--text-secondary);margin:6px 0}
.footer-brand{font-size:15px;color:var(--text-primary);margin-bottom:10px}
.footer-h{color:var(--text-primary);letter-spacing:.16em;font-size:12px;text-transform:uppercase;margin:0 0 12px}
.footer-grid nav a{display:block;color:var(--text-secondary);text-decoration:none;padding:4px 0;transition:color .25s var(--ease)}
.footer-grid nav a:hover{color:var(--accent-hover)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:40px;padding-top:22px;font-size:13.5px;color:var(--text-secondary)}
.footer-bottom p{margin:0}
.footer-bottom a{color:var(--text-secondary)}
.footer-tag{font-family:var(--font-d);font-weight:500;color:var(--accent);font-size:13px}
.dev-credit{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-secondary)}
.dev-credit a{display:inline-flex;align-items:center;gap:6px;color:var(--text-primary);text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:1px;transition:color .25s var(--ease)}
.dev-credit a:hover{color:var(--accent-hover)}
.dev-credit svg{flex:none;color:var(--accent)}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr}}

/* custom cursor: dot + trailing ring (fine pointers only) */
.cur-dot,.cur-ring{position:fixed;left:0;top:0;z-index:2000;pointer-events:none;opacity:0;border-radius:50%;transition:opacity .3s var(--ease)}
.cur-dot{width:6px;height:6px;background:var(--accent)}
.cur-ring{width:38px;height:38px;border:1.5px solid rgba(255,176,32,.65)}
.cur-ring.hot{border-color:var(--accent-hover)}
@media (pointer:fine) and (prefers-reduced-motion:no-preference){
  html.has-cursor,html.has-cursor *{cursor:none}
  html.has-cursor input,html.has-cursor textarea,html.has-cursor select{cursor:auto}
}
@media (prefers-reduced-motion:reduce),(pointer:coarse){.cur-dot,.cur-ring{display:none}}

/* paused state (hidden tab) */
body.paused *,body.paused *::before,body.paused *::after{animation-play-state:paused!important}

/* print */
@media print{
  :root{--canvas:#fff;--panel:#fff;--panel-2:#fff;--text-primary:#111;--text-secondary:#444;--ink:#111;--line:#bbb;--line-strong:#888}
  body,.js body{opacity:1;background:#fff;color:#111}
  .env,.nav,.cue,.ring,.scrim,#hero-video,.poster,.band,.skip{display:none}
  .hero{height:auto}
  .static-hero{display:flex;position:static;background:#fff;color:#111}
  .card,.faq-item,.refs{box-shadow:none}
  .rise,.stagger>*{opacity:1;transform:none}
}

/* reduced motion */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important;transition-delay:0s!important}
  body{opacity:1}
  .rise,.stagger>*{opacity:1;transform:none}
  .arc-path{stroke-dashoffset:0}
  .arc-sun,.arc-glow{offset-distance:92%;opacity:1}
  .arc-caption{opacity:1}
  .sd-dot{display:none}
  .sd-wire{stroke-dasharray:none;stroke-dashoffset:0}
  .sd-node{opacity:1;transform:none}
}