/* =========================================================
   Lapshin Vladislav — mobile version
   Not a squeezed desktop: one continuous scroll, shards
   scattered through the story, ink sections morph the page
   background on the fly. Same paper/ink/vermilion system.
   ========================================================= */

:root{
  --paper:#f3efe6;
  --paper-2:#ece6da;
  --paper-3:#e3dccd;
  --ink:#1a1714;
  --ink-soft:#3d362f;
  --muted:#8a8073;
  --muted-2:#a79b8b;
  --line:#d8cfbe;
  --line-strong:#c6bba6;
  --vermilion:#cf3a23;
  --vermilion-deep:#a82c18;
  --sand:#b8895a;
  --sand-soft:#cda77f;

  --serif:"Cormorant", Georgia, "Times New Roman", serif;
  --sans:"Manrope", system-ui, -apple-system, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  --gut:clamp(18px,5.5vw,28px);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:clip;
  transition:background-color .7s var(--ease);
}
body.on-ink{background:var(--ink);}
::selection{background:var(--vermilion);color:var(--paper);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

/* paper grain */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:2;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- top bar ---------- */
.mbar{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px var(--gut);
  padding-top:max(12px, env(safe-area-inset-top));
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease);
}
.mbar.scrolled{
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:blur(14px) saturate(1.1);
  -webkit-backdrop-filter:blur(14px) saturate(1.1);
  border-bottom:1px solid var(--line);
}
body.on-ink .mbar.scrolled{
  background:color-mix(in srgb, var(--ink) 82%, transparent);
  border-bottom:1px solid rgba(243,239,230,.14);
}
.brand{font-family:var(--serif);font-style:italic;font-weight:600;font-size:22px;letter-spacing:-.01em;transition:color .5s var(--ease);}
.brand b{color:var(--vermilion);font-style:normal;}
body.on-ink .brand{color:var(--paper);}
.mbar-cta{display:flex;align-items:center;gap:8px;}
.btn{
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--line-strong);padding:11px 16px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  background:transparent;color:var(--ink);min-height:44px;
  transition:all .25s var(--ease);
}
body.on-ink .btn:not(.btn-solid){color:var(--paper);border-color:rgba(243,239,230,.35);}
.btn-solid{background:var(--ink);color:var(--paper);border-color:var(--ink);}
body.on-ink .btn-solid{background:var(--vermilion);border-color:var(--vermilion);}
.lang-btn{min-width:52px;}

/* ---------- shared section bits ---------- */
.m-section{position:relative;z-index:3;padding:clamp(64px,14vw,96px) var(--gut);}
.sec-head{display:grid;gap:14px;margin-bottom:clamp(28px,8vw,44px);}
.tag{
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--vermilion);display:inline-flex;align-items:center;gap:10px;
}
.tag::before{content:"";width:22px;height:1px;background:var(--vermilion);display:inline-block;}
.sec-title{
  font-family:var(--serif);font-weight:500;font-style:italic;
  font-size:clamp(34px,9.6vw,46px);line-height:1.04;letter-spacing:-.01em;margin:0;
  text-wrap:balance;transition:color .5s var(--ease);
}
.lede{font-size:16.5px;color:var(--ink-soft);margin:0;text-wrap:pretty;transition:color .5s var(--ease);}
[data-theme="ink"]{color:var(--paper);}
[data-theme="ink"] .sec-title{color:var(--paper);}
[data-theme="ink"] .lede{color:rgba(243,239,230,.72);}

/* ---------- HERO ---------- */
.m-hero{
  position:relative;z-index:3;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:96px var(--gut) clamp(40px,10vw,64px);
  overflow:clip;
}
.m-hero-text{position:relative;z-index:5;}
/* бумажная вуаль: осколки, заехавшие под текст, растворяются — текст всегда читаем */
.m-hero-text::before{
  content:"";position:absolute;z-index:-1;
  inset:-72px calc(0px - var(--gut)) calc(0px - clamp(40px,10vw,64px));
  background:linear-gradient(180deg, transparent,
    color-mix(in srgb, var(--paper) 86%, transparent) 64px, var(--paper) 128px);
}
.m-kicker{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:18px;display:flex;align-items:center;gap:10px;
}
.m-kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--vermilion);flex:none;}
.m-lead{
  font-family:var(--serif);font-weight:500;line-height:1.04;letter-spacing:-.015em;
  font-size:clamp(40px,11.5vw,56px);margin:0;display:flex;flex-direction:column;
}
.m-lead .l2{font-style:italic;color:var(--vermilion);}
.m-sub{margin:18px 0 0;color:var(--ink-soft);font-size:16px;line-height:1.62;text-wrap:pretty;}
.m-axes{
  display:flex;flex-direction:column;gap:8px;margin-top:20px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);
}
.m-axes span{display:flex;align-items:center;gap:10px;}
.m-axes span::before{content:"";width:10px;height:1.5px;background:var(--vermilion);flex:none;}
.m-ctas{display:flex;gap:10px;margin-top:26px;}
.m-ctas .btn{flex:1;font-size:12.5px;padding:14px 10px;}
.m-scroll-hint{
  margin-top:30px;font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted-2);display:flex;align-items:center;gap:10px;
}
.m-scroll-hint .arr{display:inline-block;animation:hint 1.8s var(--ease) infinite;}
@keyframes hint{0%,100%{transform:translateY(0);opacity:.6;}50%{transform:translateY(5px);opacity:1;}}

/* hero shard field (behind text, drifts on scroll) */
.m-hero-shards{position:absolute;inset:0;z-index:1;pointer-events:none;}

/* ---------- shards (shared) ---------- */
.shard{position:absolute;will-change:transform;}
.shard .gback{
  position:absolute;inset:0;transform:translate(4px,7px);
  background:linear-gradient(160deg, rgba(64,112,96,.4), rgba(36,70,60,.55) 55%, rgba(120,160,144,.3));
  filter:blur(.4px);
}
.shard .gbody{
  position:absolute;inset:0;overflow:hidden;
  background:linear-gradient(var(--ga,135deg),
    rgba(255,255,255,.5), rgba(222,236,238,.14) 34%,
    rgba(170,196,205,.2) 55%, rgba(255,255,255,.4) 78%, rgba(196,216,220,.22));
  backdrop-filter:blur(2px) saturate(1.2) brightness(1.06);
  -webkit-backdrop-filter:blur(2px) saturate(1.2) brightness(1.06);
  filter:drop-shadow(0 0 .6px rgba(255,255,255,.9)) drop-shadow(0 12px 18px rgba(26,23,20,.16));
}
.shard .gphoto{position:absolute;inset:0;background-size:cover;background-repeat:no-repeat;opacity:.94;}
.shard .gtext{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:11px;letter-spacing:.05em;line-height:1.45;
  color:var(--ink);text-align:center;padding:16% 15%;text-wrap:balance;
}
.shard .gcode{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;
  padding:12% 18% 12% 14%;gap:3px;font-family:var(--mono);font-size:9.5px;line-height:1.5;color:var(--ink);
  /* длинные строки кода гаснут к краю полигона, а не режутся клипом */
  -webkit-mask-image:linear-gradient(100deg,#000 70%,transparent 94%);
  mask-image:linear-gradient(100deg,#000 70%,transparent 94%);
}
.shard .gcode span{white-space:nowrap;opacity:.85;}
.shard .gcode span:first-child{color:var(--vermilion);}
.shard .ggloss{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(var(--ga,115deg), rgba(255,255,255,0) 36%, rgba(255,255,255,.8) 49%, rgba(255,255,255,0) 60%);
  mix-blend-mode:screen;opacity:.5;
}

/* shard bands between sections */
.shard-band{
  position:relative;z-index:4;height:clamp(150px,42vw,220px);
  margin:clamp(-30px,-7vw,-44px) 0;pointer-events:none;
}

/* ---------- PROOF ribbon ---------- */
.m-proof{position:relative;z-index:3;padding:clamp(64px,14vw,96px) 0;}
.m-proof-head{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:0 var(--gut);margin-bottom:22px;
}
.tag-light{color:var(--sand-soft);}
.tag-light::before{background:var(--sand-soft);}
.m-swipe{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:rgba(243,239,230,.4);}
.hribbon{
  display:flex;gap:1px;overflow-x:auto;scroll-snap-type:x mandatory;
  background:rgba(243,239,230,.14);border-block:1px solid rgba(243,239,230,.14);
  scrollbar-width:none;
}
.hribbon::-webkit-scrollbar{display:none;}
.proof-cell{
  flex:0 0 64vw;max-width:280px;scroll-snap-align:start;
  background:var(--ink);padding:26px 22px 30px;display:grid;gap:8px;align-content:start;
}
.proof-cell:first-child{padding-left:var(--gut);}
.proof-cell .n{
  font-family:var(--serif);font-style:italic;font-weight:600;
  font-size:clamp(42px,12vw,54px);line-height:1;color:var(--paper);white-space:nowrap;
}
.proof-cell:nth-child(odd) .n{color:var(--sand-soft);}
.proof-cell .l{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted-2);line-height:1.5;}

/* ---------- MODES ---------- */
.m-modes{display:grid;gap:1px;background:var(--line-strong);border:1px solid var(--line-strong);border-top:2px solid var(--ink);}
.facet-card{background:var(--paper);padding:26px 22px 30px;display:grid;gap:14px;align-content:start;}
.facet-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.facet-name{font-family:var(--serif);font-style:italic;font-weight:600;font-size:30px;line-height:1;margin:0;}
.facet-num{font-family:var(--mono);font-size:11px;color:var(--muted-2);letter-spacing:.1em;}
.facet-chip{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--sand);border:1px solid var(--line-strong);border-radius:999px;padding:4px 11px;justify-self:start;
}
.facet-points{margin:0;padding:0;list-style:none;display:grid;gap:11px;}
.facet-points li{position:relative;padding-left:20px;color:var(--ink-soft);font-size:15px;line-height:1.55;}
.facet-points li::before{content:"";position:absolute;left:0;top:.6em;width:10px;height:1.5px;background:var(--vermilion);}

/* ---------- CASES sticky deck ---------- */
.case-deck{display:grid;gap:18px;}
.case-card{
  position:sticky;top:84px;
  background:var(--paper);border:1px solid var(--line-strong);border-top:2px solid var(--ink);
  padding:24px 20px 28px;
  box-shadow:0 -14px 26px rgba(26,23,20,.09);
  transform-origin:50% 0;
  transition:transform .3s var(--ease),filter .3s var(--ease);
}
.case-card.tucked{transform:scale(.96) translateY(-6px);filter:brightness(.97);}
.case-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:4px;}
.case-num{font-family:var(--mono);font-size:12px;color:var(--muted);}
.case-title{font-family:var(--serif);font-style:italic;font-weight:600;font-size:29px;line-height:1.05;margin:0 0 6px;}
.case-kind{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--sand);display:block;margin-bottom:12px;}
.case-what{margin:0 0 16px;color:var(--ink-soft);font-size:15.5px;}
.case-fields{margin:0;display:grid;border-top:1px solid var(--line-strong);}
.case-fields .cf{display:grid;gap:3px;padding:11px 0;border-bottom:1px solid var(--line);}
.case-fields dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);}
.case-fields dd{margin:0;font-size:15px;line-height:1.5;color:var(--ink-soft);}
.case-fields .cf-result dd{color:var(--ink);font-weight:600;}
.case-fields .cf-result dt{color:var(--vermilion);}
.case-link{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--vermilion);}

/* ---------- RECKUE ---------- */
.m-reckue{background:transparent;}
.m-reckue-list{display:grid;gap:1px;background:var(--line-strong);border:1px solid var(--line-strong);border-top:2px solid var(--ink);}
.reckue-cell{background:var(--paper-2);padding:22px 20px 26px;display:grid;gap:8px;}
.reckue-cell .rh{font-family:var(--serif);font-style:italic;font-weight:600;font-size:23px;margin:0;line-height:1.1;}
.reckue-cell .rp{margin:0;color:var(--ink-soft);font-size:15px;line-height:1.6;}
.reckue-link{display:inline-block;margin-top:20px;font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--vermilion);}

/* ---------- STACK ribbons ---------- */
.m-stack{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;}
.stack-group{min-width:0;}
.stack-group .gname{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--vermilion);
  padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:baseline;
}
.chips{
  display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
  margin:0 calc(-1 * var(--gut));padding:2px var(--gut) 6px;
}
.chips::-webkit-scrollbar{display:none;}
.chip{
  flex:none;font-size:13.5px;border:1px solid var(--line-strong);border-radius:999px;
  padding:7px 14px;color:var(--ink-soft);background:transparent;white-space:nowrap;
}

/* ---------- R&D ---------- */
.m-rnd-list{display:grid;gap:1px;background:rgba(243,239,230,.16);border:1px solid rgba(243,239,230,.16);}
.rnd-cell{background:var(--ink);padding:22px 20px 26px;display:grid;gap:10px;}
.rnd-cell .rlevel{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--vermilion);}
.rnd-cell:nth-child(2) .rlevel{color:var(--sand-soft);}
.rnd-cell:nth-child(3) .rlevel{color:var(--muted-2);}
.rnd-cell .rp{margin:0;color:rgba(243,239,230,.75);font-size:15px;line-height:1.6;}
.rnd-note{margin:22px 0 0;font-family:var(--mono);font-size:12.5px;color:var(--muted-2);line-height:1.7;}

/* ---------- AUDIENCE ---------- */
.m-aud{display:grid;gap:1px;background:var(--line-strong);border:1px solid var(--line-strong);border-top:2px solid var(--ink);}
.aud-card{background:var(--paper-2);padding:26px 20px 30px;display:grid;gap:16px;align-content:start;}
.aud-title{font-family:var(--serif);font-style:italic;font-weight:600;font-size:27px;margin:0;}
.aud-points{margin:0;padding:0;list-style:none;display:grid;gap:11px;}
.aud-points li{position:relative;padding-left:20px;color:var(--ink-soft);font-size:15px;line-height:1.55;}
.aud-points li::before{content:"";position:absolute;left:0;top:.6em;width:10px;height:1.5px;background:var(--vermilion);}
.aud-card .btn{justify-self:stretch;}

/* ---------- NOTE ---------- */
.m-note{overflow:hidden;}
.mq{
  font-family:var(--serif);font-style:italic;font-weight:500;
  font-size:clamp(23px,6.4vw,30px);line-height:1.34;letter-spacing:-.01em;margin:0;text-wrap:balance;
}
.honest{
  margin-top:32px;padding-top:24px;border-top:1px solid rgba(243,239,230,.18);
  display:grid;gap:10px;
}
.honest .hl{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--sand-soft);}
.honest a{
  font-family:var(--serif);font-style:italic;font-size:21px;color:var(--paper);
  border-bottom:1px solid var(--vermilion);padding-bottom:2px;justify-self:start;
}

/* ---------- CONTACT ---------- */
.contact-place{font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--muted);margin:6px 0 0;}
.clist{display:grid;border-top:1px solid var(--line);}
.clink{
  display:grid;gap:2px;padding:18px 2px;border-bottom:1px solid var(--line);
}
.clink .cl{font-family:var(--serif);font-style:italic;font-weight:600;font-size:23px;}
.clink .cs{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);}

/* ---------- FOOTER ---------- */
.m-footer{
  background:var(--ink);color:var(--muted-2);position:relative;z-index:3;
  padding:36px var(--gut) max(36px, env(safe-area-inset-bottom));
  display:grid;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  border-top:1px solid rgba(255,255,255,.08);
}
.m-footer b{color:var(--paper);font-weight:500;}
.m-footer a{color:var(--sand-soft);justify-self:start;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .m-scroll-hint .arr{animation:none;}
  html{scroll-behavior:auto;}
}