/* ============================================================
   CEPTHER — shared stylesheet
   Black and white only. Two themes: dark (default) and light.
   ============================================================ */

:root,
:root[data-theme="dark"]{
  --paper:#0A0A0A;
  --panel:#151515;
  --panel-2:#1E1E1E;
  --ink:#FFFFFF;
  --graphite:#9A9A9A;
  --mist:#6F6F6F;
  --rule:rgba(255,255,255,.08);
  --rule-hard:rgba(255,255,255,.18);
  --track:#2A2A2A;
  --accent:#FFFFFF;
  --accent-soft:rgba(255,255,255,.08);
  --on-accent:#0A0A0A;
  --head-bg:rgba(10,10,10,.78);
  --scheme:dark;
}
:root[data-theme="light"]{
  --paper:#FFFFFF;
  --panel:#F5F5F5;
  --panel-2:#EBEBEB;
  --ink:#0A0A0A;
  --graphite:#5E5E5E;
  --mist:#8C8C8C;
  --rule:rgba(0,0,0,.08);
  --rule-hard:rgba(0,0,0,.18);
  --track:#DCDCDC;
  --accent:#0A0A0A;
  --accent-soft:rgba(0,0,0,.06);
  --on-accent:#FFFFFF;
  --head-bg:rgba(255,255,255,.78);
  --scheme:light;
}

:root{
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --s1:4px; --s2:8px; --s3:16px; --s4:24px; --s5:40px; --s6:64px; --s7:96px;
  --sans:Inter,"Segoe UI Variable Display","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"Cascadia Mono","SF Mono",Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;color-scheme:dark;scrollbar-width:thin;scrollbar-color:var(--rule-hard) transparent}
:root[data-theme="light"]{color-scheme:light}
body{
  margin:0;padding-top:64px;
  background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background 240ms var(--ease),color 240ms var(--ease);
}
img{max-width:100%;display:block}
a{color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:99;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:var(--r-s)}
section[id],.fgroup,.gsec{scroll-margin-top:84px}

/* ---------- reveal on scroll ---------- */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity 600ms var(--ease-out),transform 600ms var(--ease-out);transition-delay:var(--d,0ms)}
[data-reveal].in{opacity:1;transform:none}
.mask{display:block}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
}

/* ---------- type ---------- */
.eyebrow{font-size:13px;font-weight:500;color:var(--mist);margin:0 0 var(--s3)}
.h-display{font-size:clamp(38px,6.4vw,64px);font-weight:600;letter-spacing:-.035em;line-height:1.04;margin:0}
.h-section{font-size:clamp(28px,4vw,42px);font-weight:600;letter-spacing:-.03em;line-height:1.1;margin:0 0 var(--s3)}
.h-item{font-size:18px;font-weight:600;letter-spacing:-.015em;margin:0 0 var(--s2)}
.lede{font-size:clamp(16px,1.8vw,18px);color:var(--graphite);line-height:1.55;margin:var(--s4) 0 0;max-width:52ch}
.muted{color:var(--graphite)}
.tiny{font-size:13.5px;color:var(--mist);line-height:1.55}
.mono{font-family:var(--mono);font-size:13px}

/* ---------- layout ---------- */
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}
.band{padding-block:var(--s7)}
.band--tight{padding-block:var(--s6)}
.band--alt{background:transparent}
.sec-head{max-width:56ch;margin-bottom:var(--s5)}
.sec-head p{margin:0;color:var(--graphite)}
.sec-line{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font:inherit;font-weight:600;font-size:15px;line-height:1.2;
  padding:12px 20px;border-radius:12px;
  border:1px solid var(--ink);background:var(--ink);color:var(--paper);
  text-decoration:none;cursor:pointer;
  transition:opacity 160ms var(--ease),background 160ms var(--ease),transform 160ms var(--ease);
}
.btn:hover{opacity:.86}
.btn:active{transform:scale(.98)}
.btn svg{width:16px;height:16px;flex:none}
.btn--ghost{background:var(--panel);color:var(--ink);border-color:transparent}
.btn--ghost:hover{background:var(--panel-2);opacity:1}
.btn--sm{padding:9px 14px;font-size:13.5px;border-radius:10px}
.btn--wide{padding:14px 24px;font-size:16px;border-radius:14px}
.btn .arw{display:none}

/* ============================================================
   HEADER
   ============================================================ */
.site-head{position:fixed;top:0;left:0;right:0;z-index:60;background:var(--head-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color 200ms var(--ease)}
.site-head.stuck{border-bottom-color:var(--rule)}
.head-inner{width:min(1120px,100% - 40px);margin-inline:auto;height:64px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:var(--s4);position:relative}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:650;letter-spacing:-.02em;font-size:17px}
.brand .mark{display:block;width:28px;height:28px;border-radius:8px;flex:none;overflow:hidden}
.brand .mark img{width:100%;height:100%;object-fit:cover}
.head-nav{display:flex;gap:var(--s4);font-size:14.5px}
.head-nav a{text-decoration:none;color:var(--ink);opacity:.72;padding-block:6px;transition:opacity 160ms var(--ease)}
.head-nav a:hover,.head-nav a.active{opacity:1}
.head-tools{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.head-cta{background:var(--panel);color:var(--ink);border-color:transparent}
.head-cta:hover{background:var(--panel-2);opacity:1}

/* single light/dark switch */
.theme-btn{
  width:36px;height:36px;border-radius:10px;border:0;background:transparent;color:var(--ink);
  display:grid;place-items:center;cursor:pointer;padding:0;transition:background 160ms var(--ease);
}
.theme-btn:hover{background:var(--panel)}
.theme-btn svg{width:18px;height:18px;display:block}
.theme-btn .i-sun{display:none}
:root[data-theme="light"] .theme-btn .i-sun{display:block}
:root[data-theme="light"] .theme-btn .i-moon{display:none}

.nav-toggle{display:none;width:36px;height:36px;border-radius:10px;border:0;background:transparent;color:var(--ink);cursor:pointer;padding:0;place-items:center}
.nav-toggle span{display:block;width:16px;height:1.5px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:currentColor}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

@media(max-width:940px){
  .head-inner{grid-template-columns:1fr auto}
  .head-nav{
    position:absolute;top:64px;left:-8px;right:-8px;
    flex-direction:column;gap:0;padding:8px;
    background:var(--paper);border:1px solid var(--rule);border-radius:16px;display:none;
  }
  .site-head.open .head-nav{display:flex}
  .head-nav a{padding:12px;border-radius:10px;opacity:.9}
  .head-nav a:hover{background:var(--panel)}
  .nav-toggle{display:grid}
  .head-cta{display:none}
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-foot{background:var(--panel);padding-block:var(--s6) var(--s5);margin-top:var(--s6)}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:var(--s5)}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr;gap:var(--s4)}}
.foot-grid .foot-title{font-size:14px;font-weight:600;margin:0 0 14px}
.foot-grid ul{list-style:none;margin:0;padding:0;font-size:14px}
.foot-grid li{margin-bottom:10px}
.foot-grid ul a{color:var(--graphite);text-decoration:none;transition:color 160ms var(--ease)}
.foot-grid ul a:hover{color:var(--ink)}
.foot-grid a.brand{display:inline-flex;color:var(--ink)}
.foot-base{margin-top:var(--s6);padding-top:var(--s4);border-top:1px solid var(--rule);display:flex;flex-wrap:wrap;gap:12px var(--s4);align-items:center;font-size:13px;color:var(--mist)}
.foot-base .topline{display:none}
.foot-base .right{margin-left:auto}
.foot-promise{display:flex;align-items:center;gap:8px}
.foot-promise .dot{display:none}

/* ============================================================
   HOME: HERO + PRODUCT SHOT
   ============================================================ */
.hero{padding-top:var(--s6);padding-bottom:var(--s5);text-align:center}
.hero-lead{max-width:46rem;margin-inline:auto}
.hero-icon{display:none}
.hero .hero-kicker{margin-bottom:var(--s3)}
.hero .lede{margin-inline:auto}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:var(--s5);align-items:center}
.spec-line{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;margin-top:var(--s4);font-size:13.5px;color:var(--mist)}
@media(max-width:600px){.hero-actions .btn{width:100%}}

.shot{margin-top:var(--s6);text-align:left;background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-l);overflow:hidden}
.shot-bar{display:flex;align-items:center;gap:10px;padding:12px var(--s4);border-bottom:1px solid var(--rule)}
.shot-bar b{font-size:13.5px;font-weight:600}
.shot-bar .mono{color:var(--mist);font-size:12px}
.win-dots{margin-left:auto;display:flex;gap:7px}
.win-dots i{width:10px;height:10px;border-radius:50%;background:var(--track);display:block}
.shot-body{padding:24px}

.queue{display:flex;flex-direction:column;gap:10px}
.dl-card{position:relative;overflow:hidden;display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;padding:10px 12px 13px;min-height:76px;border-radius:var(--r-m);background:var(--paper)}
.thumb{aspect-ratio:1.25;border-radius:8px;background:var(--panel-2);display:grid;place-items:center;overflow:hidden}
.thumb span{font-family:var(--mono);font-size:12px;color:var(--mist)}
.dl-main{min-width:0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 16px;align-content:center}
.dl-title{grid-column:1;font-size:14px;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}
.dl-sub{grid-column:1;font-size:12.5px;color:var(--mist)}
.dl-sub b{color:var(--graphite);font-weight:500}
.dl-meta{grid-column:2;grid-row:1/3;display:grid;grid-template-columns:auto auto;gap:4px 12px;align-items:center;justify-items:end;text-align:right;font-size:12px;color:var(--mist)}
.dl-meta .pct{grid-column:1;font-size:14px;font-weight:600;color:var(--ink)}
.dl-meta .speed{grid-column:1}
.dl-meta .size{grid-column:2;font-size:14px;font-weight:600;color:var(--ink)}
.dl-state{grid-column:2;justify-self:end;font-size:11.5px;font-weight:550;padding:2px 10px;border-radius:99px;background:var(--ink);color:var(--paper)}
.dl-state.done{background:transparent;color:var(--mist);box-shadow:inset 0 0 0 1px var(--rule-hard)}
.pbar{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--track);overflow:hidden}
.pbar i{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--ink);border-radius:0 99px 99px 0}

.fake-field{display:flex;gap:10px;align-items:center;margin-top:18px}
.fake-field .fld{flex:1;min-height:52px;display:flex;align-items:center;padding:14px 18px;border-radius:var(--r-m);background:var(--paper);font-family:var(--mono);font-size:13px;color:var(--graphite);white-space:nowrap;overflow:hidden}
.fake-field .caret{display:inline-block;width:1px;height:15px;background:var(--ink);margin-left:2px;animation:blink 1.15s steps(1,end) infinite}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
.fake-field .fake-btn{border-radius:var(--r-m);background:var(--ink);color:var(--paper);padding:15px 24px;font-size:15px;font-weight:600;flex:none}
.stats{display:none}
@media(max-width:650px){
  .shot-body{padding:14px}
  .dl-card{grid-template-columns:46px minmax(0,1fr)}
  .dl-main{display:flex;flex-direction:column;gap:5px}
  .dl-meta{display:flex;flex-wrap:wrap;justify-items:start;text-align:left;gap:5px 12px}
  .dl-meta .size{margin-left:auto}
  .dl-title{white-space:normal;line-height:1.3}
  .dl-state{display:none}
  .thumb{align-self:start}
  .fake-field{flex-direction:column;align-items:stretch}
  .fake-field .fld{font-size:12px;padding:12px;min-width:0}
  .fake-field .fake-btn{text-align:center}
}

/* trust line */
.trust-shell{padding-block:var(--s4)}
.trust-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:10px var(--s5);text-align:center}
.trust-grid > div{display:flex;gap:8px;align-items:baseline;font-size:15px}
.trust-grid b{font-weight:600}
.trust-grid span{color:var(--mist)}

/* ============================================================
   HOME: FEATURES, STEPS, SPLITS
   ============================================================ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s3)}
@media(max-width:900px){.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.grid-3{grid-template-columns:1fr}}
.grid-3 > [data-reveal]{display:flex}
.card{flex:1;background:var(--panel);border-radius:var(--r-l);padding:28px}
.card p{margin:0;font-size:15px;color:var(--graphite);line-height:1.6}
.card .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin-bottom:var(--s3);background:var(--paper);color:var(--ink)}
.card .ic svg{width:20px;height:20px;display:block}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s5)}
@media(max-width:760px){.steps{grid-template-columns:1fr;gap:var(--s4)}}
.step{padding-top:var(--s3);border-top:1px solid var(--rule-hard)}
.step .topline{display:none}
.step .n{font-size:13px;color:var(--mist);display:block;margin-bottom:var(--s2)}
.step p{margin:0;color:var(--graphite);font-size:15px}


/* ---------- table ---------- */
.tbl-shell{background:var(--panel);border-radius:var(--r-l);overflow:hidden}
.tbl-scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;min-width:520px}
th,td{text-align:left;padding:15px var(--s4);border-bottom:1px solid var(--rule);font-size:14.5px}
thead th{font-size:13px;color:var(--mist);font-weight:500}
tbody th{font-weight:550}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
.col-us{color:var(--ink);font-weight:600;background:var(--accent-soft)}
thead .col-us{color:var(--ink)}

/* ---------- privacy panel ---------- */
.invert{background:var(--panel);border-radius:28px;padding:var(--s6) var(--s5)}
@media(max-width:700px){.invert{padding:var(--s5) var(--s4)}}
.invert canvas.neb{display:none}
.invert .h-section{margin-bottom:var(--s4)}
.invert p{color:var(--graphite);max-width:58ch;margin:0 0 var(--s3)}
.invert p:last-of-type{margin-bottom:0}
.invert .ilist{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s4);margin-top:var(--s5);padding-top:var(--s5);border-top:1px solid var(--rule-hard)}
.invert .ilist .topline{display:none}
@media(max-width:700px){.invert .ilist{grid-template-columns:1fr;gap:var(--s3)}}
.invert .ilist b{display:block;font-size:15px;font-weight:600;margin-bottom:4px;color:var(--ink)}
.invert .ilist span{font-size:14px;color:var(--graphite);line-height:1.55}

/* ---------- download ---------- */
.dl-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:var(--s3);align-items:start}
@media(max-width:900px){.dl-grid{grid-template-columns:1fr}}
.dl-primary{background:var(--panel);border-radius:28px;padding:var(--s5)}
.dl-primary .ver{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.dl-primary .ver h3{font-size:24px;font-weight:600;letter-spacing:-.02em;margin:0}
.dl-primary .ver .mono{color:var(--mist)}
.dl-facts{display:flex;flex-wrap:wrap;gap:8px 22px;margin:var(--s4) 0;font-size:13.5px;color:var(--graphite)}
.dl-choice{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.dl-choice .btn--ghost{background:var(--paper)}
.side-card{background:var(--panel);border-radius:var(--r-l);padding:var(--s4);margin-bottom:var(--s3)}
.side-card:last-child{margin-bottom:0}
.side-card h4{font-size:15px;font-weight:600;margin:0 0 10px}
.side-card p,.side-card li{font-size:14px;color:var(--graphite);line-height:1.6;margin:0}
.side-card ul{margin:0;padding-left:17px}
.side-card li{margin-bottom:4px}
.side-card a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* ---------- FAQ ---------- */
.faq details{border-bottom:1px solid var(--rule)}
.faq details:first-child{border-top:1px solid var(--rule)}
.faq summary{cursor:pointer;list-style:none;padding:var(--s4) 0;font-size:17px;font-weight:550;letter-spacing:-.01em;display:flex;align-items:center;gap:var(--s3)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";display:inline-block;margin-left:auto;flex:none;font-size:22px;font-weight:400;line-height:1;color:var(--mist)}
.faq .ans{padding:0 0 var(--s4);max-width:70ch;color:var(--graphite);font-size:15.5px}
.faq .ans p{margin:0 0 10px}
.faq .ans p:last-child{margin-bottom:0}
.faq .ans a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* ---------- community ---------- */
.comm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s3)}
@media(max-width:800px){.comm-grid{grid-template-columns:1fr}}
.comm-card{display:flex;flex-direction:column;gap:10px;background:var(--panel);border-radius:var(--r-l);padding:28px;text-decoration:none;transition:background 160ms var(--ease)}
.comm-card:hover{background:var(--panel-2)}
.comm-card .cico{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--paper);flex:none}
.comm-card .cico svg{width:19px;height:19px}
.comm-card b{font-size:16px;font-weight:600}
.comm-card span{font-size:14.5px;color:var(--graphite);line-height:1.55}
.comm-card .go{margin-top:auto;padding-top:6px;font-size:13.5px;font-weight:550;color:var(--ink)}

/* ---------- final CTA ---------- */
.final{text-align:center;padding-block:var(--s7)}
.final p{color:var(--graphite);margin:0 auto var(--s5);max-width:46ch}

/* ============================================================
   SUB-PAGES
   ============================================================ */
.page-head{padding-block:var(--s6) var(--s5)}
.page-head .h-display{font-size:clamp(34px,5.4vw,54px)}
.crumb{font-size:13px;color:var(--mist);margin:0 0 var(--s3)}
.crumb a{text-decoration:none;color:var(--mist)}
.crumb a:hover{color:var(--ink)}

.prose{max-width:74ch}
.prose h2{font-size:22px;font-weight:600;letter-spacing:-.02em;margin:var(--s6) 0 var(--s3)}
.prose h3{font-size:17px;font-weight:600;margin:var(--s5) 0 var(--s2)}
.prose p,.prose li{color:var(--graphite);font-size:16px;line-height:1.72}
.prose ul{padding-left:20px;margin:var(--s3) 0}
.prose li{margin-bottom:8px}
.prose strong{color:var(--ink);font-weight:600}
.prose a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.prose hr{border:0;height:1px;background:var(--rule);margin:var(--s6) 0}
.prose code{font-family:var(--mono);font-size:13px;background:var(--panel);border-radius:6px;padding:2px 6px}
.callout{background:var(--panel);border-radius:var(--r-l);padding:var(--s4);margin:var(--s5) 0}
.callout h4{margin:0 0 8px;font-size:15px;font-weight:600}
.callout p{margin:0;font-size:14.5px;color:var(--graphite)}
.callout p + p{margin-top:8px}
.callout a{color:var(--ink)}

/* changelog */
#rel-list{display:flex;flex-direction:column;gap:var(--s3)}
.rel{padding:26px 28px 22px;background:var(--panel);border-radius:var(--r-l)}
.rel.latest{box-shadow:inset 0 0 0 1px var(--rule-hard)}
.rel-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:4px}
.rel-head h2{font-size:19px;font-weight:600;letter-spacing:-.02em;margin:0}
.rel-head time{font-size:13px;color:var(--mist)}
.rel-tag{font-size:12px;padding:2px 10px;border-radius:99px;background:var(--panel-2);color:var(--graphite)}
.rel-tag.new{background:var(--ink);color:var(--paper)}
.rel-sum{margin:0 0 4px;color:var(--ink);font-size:16.5px;font-weight:600}
.rel-desc{margin:0 0 var(--s3);color:var(--graphite);font-size:14.5px;line-height:1.6;max-width:64ch}
.rel ul{margin:0;padding-left:18px}
.rel li{color:var(--graphite);font-size:14.5px;margin-bottom:7px;line-height:1.6}
.rel li b{color:var(--ink);font-weight:600}
.rel-details-wrap{margin-top:var(--s3)}
.rel details{border-bottom:1px solid var(--rule)}
.rel details:first-of-type{border-top:1px solid var(--rule);margin-top:var(--s3)}
.rel summary{cursor:pointer;list-style:none;padding:12px 0;font-size:14.5px;font-weight:500;display:flex;align-items:center;color:var(--graphite)}
.rel summary:hover{color:var(--ink)}
.rel summary::-webkit-details-marker{display:none}
.rel summary::after{content:"+";display:inline-block;margin-left:auto;font-size:18px;line-height:1;color:var(--mist)}
.rel details ul{padding-bottom:16px;margin:0;padding-top:4px}
.rel details.empty summary{cursor:default;color:var(--mist)}
.rel details.empty summary::after{opacity:.35}

/* features page */
.feat-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:var(--s6)}
.feat-nav a{font-size:13.5px;padding:8px 14px;border-radius:99px;background:var(--panel);color:var(--graphite);text-decoration:none;transition:background 160ms var(--ease),color 160ms var(--ease)}
.feat-nav a:hover,.feat-nav a.active{background:var(--ink);color:var(--paper)}
.fgroup{padding-block:var(--s6);border-top:1px solid var(--rule)}
.fgroup:first-of-type{border-top:0;padding-top:0}
.fgroup > .eyebrow{color:var(--ink);font-weight:600}
.frow{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--s3);margin-top:var(--s4)}
@media(max-width:760px){.frow{grid-template-columns:1fr}}
.fitem{background:var(--panel);border-radius:var(--r-m);padding:22px}
.fitem h3{font-size:16px;font-weight:600;margin:0 0 6px;letter-spacing:-.01em}
.fitem p{margin:0;font-size:15px;color:var(--graphite);line-height:1.62}

/* guide page */
.guide-grid{display:grid;grid-template-columns:220px 1fr;gap:var(--s6);align-items:start}
@media(max-width:900px){.guide-grid{grid-template-columns:1fr;gap:var(--s4)}}
.guide-toc{position:sticky;top:90px}
@media(max-width:900px){.guide-toc{position:static}}
.guide-toc .foot-title{font-size:13px;font-weight:600;color:var(--mist);margin:0 0 12px}
.guide-toc ul{list-style:none;margin:0;padding:0}
.guide-toc li{margin-bottom:2px}
.guide-toc a{display:block;padding:7px 12px;border-radius:9px;font-size:14px;color:var(--graphite);text-decoration:none;transition:background 160ms var(--ease),color 160ms var(--ease)}
.guide-toc a:hover,.guide-toc a.active{background:var(--panel);color:var(--ink)}
.gsec{padding-bottom:var(--s6)}
.gsec h2{font-size:23px;font-weight:600;letter-spacing:-.022em;margin:0 0 var(--s3)}
.gstep{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--rule)}
.gstep:first-of-type{border-top:0}
.gstep .gn{flex:none;width:26px;height:26px;border-radius:8px;background:var(--panel);color:var(--ink);display:grid;place-items:center;font-size:12.5px;font-weight:600}
.gstep div{min-width:0}
.gstep b{display:block;font-size:15.5px;font-weight:600;margin-bottom:3px}
.gstep p{margin:0;font-size:15.5px;color:var(--graphite);line-height:1.62}

/* download page */
.dlchoice{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s3)}
@media(max-width:860px){.dlchoice{grid-template-columns:minmax(0,1fr)}}
.dlcard{display:flex;flex-direction:column;gap:var(--s3);background:var(--panel);border-radius:28px;padding:clamp(24px,4vw,40px)}
.dlcard.primary{box-shadow:inset 0 0 0 1px var(--rule-hard)}
.dlhead{display:flex;align-items:center;gap:14px}
.dlhead h2{font-size:26px;font-weight:600;letter-spacing:-.025em;margin:0;line-height:1.15}
.dlhead p{margin:2px 0 0}
.dlhead .mark{display:block;flex:0 0 52px;width:52px;height:52px;border-radius:14px;overflow:hidden}
.dlhead .mark img{display:block;width:100%;height:100%;object-fit:cover}
.dlhead .mark--icon{display:grid;place-items:center;background:var(--paper);color:var(--ink)}
.dlhead .mark--icon svg{width:24px;height:24px}
.dlcard > p.muted{margin:0;font-size:16px;max-width:46ch}
.dlfacts{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0;padding:0;list-style:none;font-size:14px;color:var(--graphite)}
.btnrow{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:var(--s2)}
.dlcard .tiny{margin:0}
.dlcard .tiny a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.btn[aria-disabled="true"]{opacity:.38;cursor:not-allowed;pointer-events:none}
.btn--ghost[data-download-choice]{background:var(--paper)}
@media(max-width:560px){.btnrow .btn{width:100%}}

/* ============================================================
   MOTION: one easing curve, short distances, nothing flashy
   ============================================================ */
/* theme crossfade: every surface eases together for a moment */
html.theme-fade *,html.theme-fade *::before,html.theme-fade *::after{
  transition:background-color 380ms var(--ease),color 380ms var(--ease),border-color 380ms var(--ease),box-shadow 380ms var(--ease),fill 380ms var(--ease),opacity 380ms var(--ease)!important;
}

/* page load: header drops in, hero words settle in a gentle stagger */
@keyframes riseIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes dropIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
.site-head{animation:dropIn 700ms var(--ease-out) both}
.hero-lead .mask > span{display:block;animation:riseIn 900ms var(--ease-out) both;animation-delay:var(--d,0ms)}
.hero-lead .mask:nth-of-type(1) > span{animation-delay:120ms}
.hero-lead .mask:nth-of-type(2) > span{animation-delay:240ms}
.hero-lead .lede,.hero-lead .hero-actions,.hero-lead .spec-line{animation:riseIn 900ms var(--ease-out) both}
.hero-lead .lede{animation-delay:400ms}
.hero-lead .hero-actions{animation-delay:520ms}
.hero-lead .spec-line{animation-delay:620ms}
.page-head{animation:riseIn 800ms var(--ease-out) both}
.hero-lead [data-reveal]{opacity:1;transform:none;transition:none}

/* the product shot rises and settles; cards and panels follow */
.shot[data-reveal]{transform:translateY(40px) scale(.97);transition:opacity 1000ms var(--ease-out),transform 1000ms var(--ease-out)}
.shot[data-reveal].in{transform:none}
.card,.comm-card,.side-card,.fitem,.rel,.feat-nav a{transition:background-color 220ms var(--ease),transform 320ms var(--ease-out)}
.card:hover,.comm-card:hover,.fitem:hover{transform:translateY(-3px)}
.card:hover{background:var(--panel-2)}
.btn,.theme-btn,.head-nav a,.foot-grid ul a,.guide-toc a{transition-duration:200ms}
.faq details .ans{animation:none}
.theme-btn svg{transition:transform 400ms var(--ease-out)}
.theme-btn:hover svg{transform:rotate(18deg)}
.theme-btn:active svg{transform:rotate(90deg) scale(.9)}

@media(prefers-reduced-motion:reduce){
  .site-head,.page-head,.hero-lead .mask > span,.hero-lead .lede,.hero-lead .hero-actions,.hero-lead .spec-line{animation:none}
  .shot[data-reveal]{transform:none}
}

/* accordion polish: the +/- turns, rows ease on hover, the text never jumps */
.faq summary{transition:color 200ms var(--ease),padding-left 300ms var(--ease-out)}
.faq summary:hover{padding-left:6px}
.faq summary::after{transition:transform 380ms var(--ease-out),color 200ms var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details.closing summary::after{transform:none}
.faq summary:hover::after{color:var(--ink)}
.faq details{transition:border-color 200ms var(--ease)}
.rel summary::after{transition:transform 380ms var(--ease-out)}
.rel details[open] summary::after{transform:rotate(45deg)}

/* ============================================================
   REAL APP PICTURES
   ============================================================ */
.app{margin:0}
.app img{width:100%;height:auto;display:block}
.app .app-l{display:none}
:root[data-theme="light"] .app .app-d{display:none}
:root[data-theme="light"] .app .app-l{display:block}

.appframe{margin-top:var(--s6);border-radius:var(--r-l);overflow:hidden;box-shadow:0 0 0 1px var(--rule-hard),0 30px 80px -40px rgba(0,0,0,.6)}
:root[data-theme="light"] .appframe{box-shadow:0 0 0 1px var(--rule-hard),0 30px 80px -40px rgba(0,0,0,.25)}
.appframe[data-reveal]{transform:translateY(40px) scale(.97);transition:opacity 1000ms var(--ease-out),transform 1000ms var(--ease-out)}
.appframe[data-reveal].in{transform:none}
.shot-note{text-align:center;margin:var(--s3) 0 0}


/* pictures inside guide sections */
.gsec .app{margin-top:var(--s4);border-radius:14px;overflow:hidden;box-shadow:0 0 0 1px var(--rule-hard)}

/* ============================================================
   TOUR: one large, readable view of the real app per feature
   ============================================================ */
.showcase{display:grid;gap:var(--s3)}
.showrow{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(24px,5vw,64px);align-items:center;background:var(--panel);border-radius:28px;padding:clamp(24px,4.5vw,56px)}
.showrow.rev{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.showrow.rev .showimg{order:-1}
.showtext .eyebrow{margin-bottom:var(--s2)}
.showtext h3{font-size:clamp(26px,3.4vw,40px);font-weight:600;letter-spacing:-.03em;line-height:1.08;margin:0 0 var(--s3)}
.showtext p:not(.eyebrow){margin:0;color:var(--graphite);font-size:clamp(16px,1.6vw,18px);max-width:40ch}
.showimg{margin:0;border-radius:18px;overflow:hidden;box-shadow:0 0 0 1px var(--rule-hard),0 24px 60px -30px rgba(0,0,0,.55)}
:root[data-theme="light"] .showimg{box-shadow:0 0 0 1px var(--rule-hard),0 24px 60px -30px rgba(0,0,0,.2)}
.showimg img{width:100%;height:auto;display:block}
.showimg .app-l{display:none}
:root[data-theme="light"] .showimg .app-d{display:none}
:root[data-theme="light"] .showimg .app-l{display:block}
@media(max-width:860px){.showrow,.showrow.rev{grid-template-columns:minmax(0,1fr)}.showrow.rev .showimg{order:0}}

/* scroll reveal: the words slide in from their side, the picture rises and settles */
.showrow[data-reveal]{transform:none}
.showtext[data-reveal]{transform:translateX(-36px)}
.showrow.rev .showtext[data-reveal]{transform:translateX(36px)}
.showtext[data-reveal].in{transform:none}
.showimg[data-reveal]{transform:translateY(48px) scale(.96);transition:opacity 1000ms var(--ease-out),transform 1100ms var(--ease-out);transition-delay:var(--d,0ms)}
.showimg[data-reveal].in{transform:none}
[data-reveal].sec-head,.sec-head [data-reveal]{transform:translateY(24px)}
.sec-head [data-reveal].in{transform:none}
.sec-head .eyebrow[data-reveal]{transition-delay:0ms}
.sec-head .h-section[data-reveal]{transition-delay:90ms}
.sec-head p[data-reveal]:not(.eyebrow){transition-delay:180ms}
.card[data-reveal],.grid-3 > [data-reveal]{transform:translateY(36px) scale(.98)}
.grid-3 > [data-reveal].in{transform:none}

/* hero picture: eases toward full size as it scrolls into view */
.appframe[data-scrub]{transform:translateY(calc((1 - var(--p,1)) * 44px)) scale(calc(.94 + .06 * var(--p,1)));transform-origin:50% 0;will-change:transform}
.appframe[data-reveal][data-scrub]{transition:opacity 1000ms var(--ease-out)}

@media(prefers-reduced-motion:reduce){
  .showtext[data-reveal],.showimg[data-reveal]{transform:none}
  .appframe[data-scrub]{transform:none}
}

/* hero: the real download cards, with their progress bars moving */
.dlcards{position:relative;line-height:0}
.dlcards .fx{position:absolute;left:2.33%;width:95.35%;height:.43%;display:block;transform-origin:0 50%;transform:scaleX(0);
  background:linear-gradient(90deg,var(--bar-a) 0%,var(--bar-b) 100%);border-radius:0 99px 99px 0;box-shadow:0 0 10px 1px var(--bar-glow);
  animation:dlfill var(--t,8s) cubic-bezier(.22,.7,.3,1) var(--o,0s) infinite}
.dlcards .fx1{top:24.57%;--t:7s;--o:-3.4s}
.dlcards .fx2{top:41%;--t:9s;--o:-6.1s}
.dlcards .fx3{top:57.43%;--t:11s;--o:-1.8s}
:root{--bar-a:rgba(255,255,255,.55);--bar-b:#fff;--bar-glow:rgba(255,255,255,.35)}
:root[data-theme="light"]{--bar-a:#a78bfa;--bar-b:#7c3aed;--bar-glow:rgba(124,58,237,.35)}
@keyframes dlfill{0%{transform:scaleX(0);opacity:1}82%{transform:scaleX(1);opacity:1}94%{transform:scaleX(1);opacity:1}100%{transform:scaleX(1);opacity:0}}
@media(prefers-reduced-motion:reduce){
  .dlcards .fx{animation:none}
  .dlcards .fx1{transform:scaleX(.52)}.dlcards .fx2{transform:scaleX(.7)}.dlcards .fx3{transform:scaleX(.38)}
}