/* ── Noctaflow · brand (locked) skinned onto the Nocta Flow design-system grammar ──
   Layout grammar, scale and surface ladder: Website/Design System (ui_kits/marketing).
   Color, faces, radii, mono labels: Brand/Brand System.md — brand wins every conflict. */
@font-face{font-family:'Inter Tight';src:url(/assets/fonts/inter-tight-latin-wght-normal.woff2) format('woff2');font-weight:100 900;font-style:normal;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter Tight';src:url(/assets/fonts/inter-tight-cyrillic-wght-normal.woff2) format('woff2');font-weight:100 900;font-style:normal;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Instrument Serif';src:url(/assets/fonts/instrument-serif-latin-400-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url(/assets/fonts/jetbrains-mono-latin-wght-normal.woff2) format('woff2');font-weight:100 800;font-style:normal;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url(/assets/fonts/jetbrains-mono-cyrillic-wght-normal.woff2) format('woff2');font-weight:100 800;font-style:normal;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Playfair Display';src:url(/assets/fonts/playfair-display-cyrillic-400-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
:root{
  --canvas:#08090A;--surface:#0E1012;--elevated:#14181A;
  --accent:#46E0A8;--accent-dim:#2FBE8B;
  --text:#F2F5F3;--text-2:#A6ADAA;--muted:#6C7472;
  --line:rgba(255,255,255,.085);--line-strong:rgba(255,255,255,.16);
  --focus:#46E0A8;--on-accent:#08090A;--err:#FF8A7A;
  --glow:0 0 60px -12px rgba(70,224,168,.45);
  --inverse-canvas:#FFFFFF;--inverse-ink:#0A0B0C;--accent-tint:rgba(70,224,168,.14);
  --r1:3px;--r2:6px;
  /* design-system type scale, brand faces */
  --dxl:clamp(2.75rem,6.2vw,5rem);      /* hero */
  --dlg:clamp(2rem,3.9vw,3.5rem);       /* section openers */
  --dmd:clamp(1.6rem,2.8vw,2.5rem);
  --hl:1.75rem;                          /* tier titles, banner */
  --ct:1.375rem;                         /* card titles */
  --bl:1.125rem;                         /* hero sub */
  --sm:.875rem;--cap:.75rem;
  --sp-sec:clamp(80px,10vw,128px);
  --container:1140px;
  --t-fast:120ms;--t-base:200ms;--ease:cubic-bezier(.2,.7,.3,1);
  --font:'Inter Tight',system-ui,sans-serif;--font-em:'Playfair Display','Instrument Serif',Georgia,serif;--font-mono:'JetBrains Mono',ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--canvas);color:var(--text);font:400 1rem/1.5 var(--font);letter-spacing:-.003em;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--accent-tint);color:var(--text)}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:var(--r1)}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--on-accent);padding:12px 24px;z-index:100;border-radius:var(--r1)}
.skip:focus{left:16px;top:16px}
.wrap{max-width:var(--container);margin-inline:auto;padding-inline:24px}
@media(max-width:640px){.wrap{padding-inline:16px}}
main{display:flex;flex-direction:column;gap:var(--sp-sec);padding-bottom:var(--sp-sec)}
.em{font:italic 400 1em var(--font-em);color:var(--accent)}
.eyebrow{font:500 .6875rem/1.5 var(--font-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.eyebrow--accent{color:var(--accent)}
/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(8,9,10,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:24px}
.mark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.mark svg{width:20px;height:20px;flex:none}
.wordmark{font:800 1.0625rem/1 var(--font);letter-spacing:-.03em}
.wordmark b{color:var(--accent)}
.nav-links{display:flex;gap:4px}
.nav-links a{font:500 .875rem/1 var(--font);color:var(--text-2);text-decoration:none;padding:10px 12px;border-radius:var(--r1);transition:color var(--t-fast) var(--ease)}
.nav-links a:hover{color:var(--text)}
@media(max-width:768px){.nav-links{display:none}}
.nav-right{display:flex;align-items:center;gap:10px}
.lang{font:500 .6875rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);text-decoration:none;border:1px solid var(--line-strong);border-radius:var(--r1);padding:0 10px;min-height:36px;display:inline-flex;align-items:center;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.lang:hover{color:var(--text);border-color:var(--accent-dim)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r1);font:600 .875rem/1 var(--font);text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}
.btn:active{transform:translateY(1px)}
.btn--sm{min-height:36px;padding:0 14px}
.btn--primary{background:var(--accent);color:var(--on-accent)}
.btn--primary:hover{background:var(--accent-dim)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--accent-dim);background:var(--surface)}
.btn[disabled]{opacity:.4;pointer-events:none}
.link--under{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(70,224,168,.4)}
.link--under:hover{text-decoration-color:var(--accent)}
/* hero */
.hero{display:flex;flex-direction:column;align-items:center;text-align:center;gap:24px;padding-top:clamp(56px,8vw,104px)}
.hero-chip{display:inline-flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r1);padding:7px 12px;font:500 .6875rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);text-decoration:none}
.hero-chip b{color:var(--accent);font-weight:500}
.hero h1{font-size:var(--dxl);font-weight:800;line-height:1.04;letter-spacing:-.035em;max-width:820px;text-wrap:balance}
.hero-sub{font-size:var(--bl);line-height:1.5;color:var(--text-2);max-width:560px}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:4px}
.hero-cap{font:500 .6875rem/1.5 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
/* framed panel (the product-panel pattern) */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r2);overflow:hidden;transition:border-color var(--t-base) var(--ease),background var(--t-base) var(--ease),transform var(--t-base) var(--ease)}
.panel-chrome{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line)}
.panel-chrome i{width:8px;height:8px;border-radius:50%;background:var(--line-strong);flex:none}
.panel-chrome span{font:500 .625rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.panel-chrome b{color:var(--accent);font-weight:500}
.panel-cap{margin-top:14px;text-align:center;font:500 .625rem/1.6 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.hero-panel{position:relative}
.hero-panel::after{content:"";position:absolute;left:8%;right:8%;bottom:-40px;height:80px;background:radial-gradient(50% 100% at 50% 0,rgba(70,224,168,.16),transparent 75%);pointer-events:none}
.hero-panel .panel{box-shadow:var(--glow)}
/* before/after */
.ba{position:relative;background:var(--inverse-canvas);overflow:hidden}
.ba img{width:100%;height:auto}
.ba .after{position:absolute;inset:0;clip-path:inset(0 0 0 var(--ba,50%))}
.ba .handle{position:absolute;top:0;bottom:0;left:var(--ba,50%);width:2px;background:var(--accent);pointer-events:none}
.ba .handle::after{content:"◂ ▸";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--accent);color:var(--on-accent);font:700 .75rem/1 var(--font);padding:8px 10px;border-radius:var(--r1);white-space:nowrap}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;-webkit-appearance:none;appearance:none}
.ba .lbl{position:absolute;top:12px;font:500 .625rem/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;padding:6px 9px;border-radius:var(--r1)}
.ba .lbl--b{left:12px;background:rgba(255,255,255,.92);color:var(--inverse-ink)}
.ba .lbl--a{right:12px;background:rgba(8,9,10,.85);color:var(--accent)}
/* client name tiles */
.tiles{display:flex;flex-direction:column;align-items:center;gap:24px;text-align:center}
.tiles-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.tile{display:inline-flex;align-items:baseline;gap:10px;padding:12px 18px;border:1px solid var(--line);border-radius:var(--r1);text-decoration:none;transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}
.tile:hover{border-color:var(--line-strong);background:var(--surface)}
.tile em{font:500 .625rem/1 var(--font-mono);color:var(--muted);font-style:normal}
.tile span{font:700 1.0625rem/1 var(--font);letter-spacing:-.02em;color:var(--text)}
/* section headers */
.sec-head{display:flex;flex-direction:column;gap:12px;max-width:640px;margin-bottom:40px}
.sec-head h2{font-size:var(--dlg);font-weight:800;line-height:1.1;letter-spacing:-.03em;text-wrap:balance}
.sec-head p{color:var(--text-2);max-width:52ch}
/* work grid */
.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:860px){.work-grid{grid-template-columns:1fr}}
.build{display:block;text-decoration:none;color:inherit}
.build .panel:hover{border-color:var(--line-strong);background:var(--elevated);transform:translateY(-2px)}
.build-body{padding:18px 20px 20px;display:grid;gap:8px}
.build-body h3{font-size:var(--ct);font-weight:700;letter-spacing:-.02em;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.build-body p{font-size:var(--sm);line-height:1.55;color:var(--text-2)}
.build-body p b{color:var(--text);font-weight:600}
.chip{display:inline-block;font:500 .5625rem/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);border:1px solid var(--line-strong);border-radius:var(--r1);padding:5px 8px;vertical-align:middle}
/* include grid */
.inc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:860px){.inc-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.inc-grid{grid-template-columns:1fr}}
.inc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r2);padding:22px;display:grid;gap:8px;align-content:start;transition:background var(--t-base) var(--ease),border-color var(--t-base) var(--ease)}
.inc:hover{background:var(--elevated);border-color:var(--line-strong)}
.inc h3{font-size:1.0625rem;font-weight:700;letter-spacing:-.015em}
.inc p{font-size:var(--sm);line-height:1.55;color:var(--text-2)}
/* scope tiers */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:860px){.tiers{grid-template-columns:1fr}}
.tier{background:var(--surface);border:1px solid var(--line);border-radius:var(--r2);padding:26px;display:flex;flex-direction:column;gap:16px}
.tier.is-featured{background:var(--elevated);border-color:var(--accent-dim)}
.tier h3{font-size:var(--hl);font-weight:800;letter-spacing:-.025em}
.tier ul{list-style:none;display:grid;gap:9px}
.tier li{padding-left:22px;position:relative;font-size:var(--sm);line-height:1.5;color:var(--text-2)}
.tier li::before{content:"";position:absolute;left:0;top:.5em;width:9px;height:5px;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(-45deg)}
.tier .btn{margin-top:auto}
/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:860px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{border-top:1px solid var(--line-strong);padding-top:16px;display:grid;gap:6px;align-content:start}
.step .num{font:500 .8125rem/1 var(--font-mono);color:var(--accent)}
.step h3{font-size:1.0625rem;font-weight:700;letter-spacing:-.015em}
.step p{font-size:var(--sm);line-height:1.55;color:var(--text-2)}
/* faq */
.faq-wrap{max-width:720px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 0;cursor:pointer;font-weight:600;font-size:.9375rem;letter-spacing:-.01em;list-style:none;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:400 1.25rem/1 var(--font-mono);color:var(--accent);transition:transform var(--t-base) var(--ease);flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{font-size:var(--sm);line-height:1.6;color:var(--text-2);max-width:60ch;padding-bottom:18px}
/* cta banner */
.banner{background:var(--surface);border:1px solid var(--line);border-radius:var(--r2);padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.banner h2{font-size:var(--hl);font-weight:800;letter-spacing:-.025em}
.banner p{font-size:var(--sm);color:var(--text-2);margin-top:4px}
/* contact */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:20px;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}.contact-grid form{order:2}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r2);padding:26px}
.field{display:grid;gap:7px;margin-bottom:16px}
.field label{font:600 .8125rem/1 var(--font)}
.field input,.field select,.field textarea{width:100%;min-height:44px;background:var(--canvas);border:1px solid var(--line);border-radius:var(--r1);color:var(--text);font:400 .9375rem/1.4 var(--font);padding:10px 14px;transition:border-color var(--t-fast) var(--ease)}
.field textarea{min-height:104px;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--line-strong)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--focus);outline-offset:0;border-color:transparent}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.form-note{border:1px solid var(--line-strong);border-radius:var(--r2);padding:14px 18px;font-size:var(--sm);color:var(--text-2);margin-top:16px;display:none}
.form-note.show{display:block}
.form-note.ok{border-color:rgba(70,224,168,.35);background:var(--accent-tint);color:var(--text)}
.form-note.bad{border-color:rgba(255,138,122,.4);color:var(--text)}
.hp{position:absolute;left:-9999px;opacity:0;pointer-events:none}
.ways{display:grid}
.way{display:flex;align-items:center;gap:14px;padding:15px 4px;min-height:56px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--text);transition:background var(--t-fast) var(--ease)}
.way:first-child{border-top:1px solid var(--line)}
.way:hover{background:var(--elevated)}
.way svg{width:18px;height:18px;color:var(--accent);flex:none}
.way .eyebrow{width:44px}
.way b{font-weight:600;font-size:var(--sm);letter-spacing:-.01em;margin-left:auto;text-align:right}
/* footer */
footer{border-top:1px solid var(--line);padding:56px 0 calc(32px + 64px)}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
@media(max-width:640px){.foot{grid-template-columns:1fr}}
.foot h4{font:500 .6875rem/1 var(--font-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.foot a{display:block;font-size:var(--sm);color:var(--text-2);text-decoration:none;padding:5px 0}
.foot a:hover{color:var(--text)}
.foot-brand p{font-size:var(--sm);color:var(--text-2);margin-top:12px;max-width:26ch}
.foot-legal{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font:500 .625rem/1.6 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
/* mobile bar */
.bar{display:none}
@media(max-width:640px){
  .bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;border-top:1px solid var(--line-strong);background:rgba(8,9,10,.92);backdrop-filter:blur(14px);padding-bottom:env(safe-area-inset-bottom)}
  .bar a{flex:1;display:flex;align-items:center;justify-content:center;min-height:52px;font:600 .875rem/1 var(--font);color:var(--text);text-decoration:none;border-right:1px solid var(--line)}
  .bar a:last-child{border-right:0;color:var(--on-accent);background:var(--accent)}
}
/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 480ms var(--ease),transform 480ms var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}