/* ============================================================
   LIXFIX — B2B TECHNOLOGY STUDIO
   Homepage v2 styles (CZ + EN share this stylesheet)
   Shared with ochrana-osobnich-udaju.html (keep those class
   contracts intact: .container, .section-light, .site-header,
   .header-inner, .logo, .button, .button-small,
   .button-primary, .section-label, .dark-label, var(--muted))
   ============================================================ */

:root{
  --ink:#0D1012;            /* graphite / black      */
  --ink-2:#12161A;          /* raised dark surface   */
  --ink-3:#1A1F24;          /* card / input surface  */
  --paper:#F4F1E9;          /* warm white            */
  --paper-2:#EBE8DF;        /* warm white alt        */
  --text:#17191C;           /* graphite text on light*/
  --muted:#5A6066;          /* neutral grey on light */
  --light:#F4F1E9;
  --lime:#C9FF38;           /* signal lime = ACTIVE  */
  --lime-deep:#5C7A00;      /* lime readable on light*/
  --line:rgba(255,255,255,.14);
  --dark-line:rgba(23,25,28,.14);
  --radius:3px;
  --max:1280px;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono','Cascadia Mono',Menlo,Consolas,monospace;
  --sans:'Manrope',Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:104px}
body{margin:0;font-family:var(--sans);background:var(--paper);color:var(--text);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
address{font-style:normal}
img,svg{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}

.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.section-dark{background:var(--ink);color:#F2F1EC}
.section-light{background:var(--paper);color:var(--text)}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---- focus & selection ----------------------------------- */
:focus{outline:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.section-light :focus-visible{outline-color:var(--text)}
::selection{background:var(--lime);color:#10130F}

/* ---- skip link ------------------------------------------- */
.skip-link{position:absolute;left:12px;top:-60px;z-index:300;background:var(--lime);color:#10130F;padding:10px 16px;font-weight:700;font-size:13px;border-radius:var(--radius);transition:top .2s ease}
.skip-link:focus{top:12px}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{position:fixed;inset:0 0 auto;z-index:100;color:#fff;transition:background .25s ease,border-color .25s ease}
.site-header.scrolled{background:rgba(13,16,18,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{height:84px;display:flex;align-items:center;gap:26px}
.logo{font-size:23px;font-weight:800;letter-spacing:-.02em;line-height:1}
.logo span{color:var(--lime)}

.desktop-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.desktop-nav a{font-size:13px;font-weight:600;color:rgba(255,255,255,.82);letter-spacing:.01em;transition:color .2s ease}
.desktop-nav a:hover{color:#fff}

/* divisions dropdown (hover, focus and touch/keyboard via .is-open) */
.nav-item{position:relative;display:flex;align-items:center}
.has-dropdown>.nav-link::after{content:"";display:inline-block;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);margin-left:8px;opacity:.7;transition:transform .2s ease}
.has-dropdown:hover>.nav-link::after,.has-dropdown.is-open>.nav-link::after{transform:rotate(225deg) translate(-2px,-2px)}
.dropdown{position:absolute;top:calc(100% + 16px);left:50%;transform:translateX(-50%) translateY(8px);min-width:290px;background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);padding:10px;display:grid;gap:2px;opacity:0;visibility:hidden;transition:opacity .22s ease,transform .22s ease,visibility .22s ease;box-shadow:0 24px 48px rgba(0,0,0,.5)}
.dropdown::before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}
.has-dropdown:hover .dropdown,.has-dropdown:focus-within .dropdown,.has-dropdown.is-open .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown a{display:block;padding:11px 14px;border-radius:2px;font-size:12.5px;font-weight:600;color:rgba(255,255,255,.86);white-space:nowrap;transition:background .18s ease,color .18s ease}
.dropdown a:hover{background:var(--ink-3);color:var(--lime)}

.lang-switch{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.55)}
.lang-item{color:rgba(255,255,255,.55);transition:color .2s ease}
a.lang-item:hover{color:#fff}
.lang-item.is-active{color:var(--lime);font-weight:700}
.lang-sep{opacity:.5}

.desktop-cta{margin-left:8px}
.menu-button{display:none}
.mobile-menu{display:none}

/* ============================================================
   BUTTONS & LINKS
   ============================================================ */
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:50px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.07em;cursor:pointer;white-space:nowrap;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease}
.button:hover{transform:translateY(-1px)}
.button-small{min-height:40px;padding-inline:18px;font-size:11px}
.button-primary{background:var(--lime);color:#10130F}
.button-primary:hover{background:#D9FF5C;color:#10130F}
.button-dark{background:var(--ink);color:#F2F1EC;border-color:rgba(255,255,255,.22)}
.button-dark:hover{border-color:var(--lime)}

.text-link{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.85);border-bottom:1px solid rgba(255,255,255,.3);padding-bottom:4px;transition:color .2s ease,border-color .2s ease}
.text-link:hover{color:var(--lime);border-color:var(--lime)}
.dark-link{color:var(--text);border-color:var(--dark-line)}
.dark-link:hover{color:var(--lime-deep);border-color:var(--lime-deep)}

/* ============================================================
   SHARED SECTION PATTERNS
   ============================================================ */
.section-label{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--lime)}
.section-label::before{content:"";width:22px;height:1px;background:currentColor}
.dark-label{color:var(--lime-deep)}

.section-title{font-size:clamp(36px,4.8vw,60px);line-height:1.04;letter-spacing:-.045em;font-weight:800;margin-top:14px}
.section-sub{color:var(--muted);margin-top:14px;max-width:560px}
.section-head{max-width:760px;margin-bottom:52px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:48px}

/* ============================================================
   ABOUT — O NÁS (who LIXFIX is, why three equal divisions)
   ============================================================ */
.about{padding:110px 0;border-top:1px solid var(--dark-line)}
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:start}
.about-lead{font-size:19px;font-weight:600;color:var(--text);line-height:1.65;margin-top:26px;max-width:640px}
.about-body{font-size:15px;color:var(--muted);line-height:1.75;margin-top:18px;max-width:640px}
.about-cta{margin-top:34px}
.about-divisions{display:grid;border-top:2px solid var(--text)}
.about-row{display:grid;grid-template-columns:44px 1fr;gap:18px;padding:26px 0;border-bottom:1px solid var(--dark-line)}
.about-num{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--lime-deep);padding-top:3px}
.about-row h3{font-size:16.5px;font-weight:800;letter-spacing:.02em}
.about-row p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.6}
.about-note{margin-top:26px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted)}

/* ============================================================
   HERO — two-part composition (copy | engineering system)
   ============================================================ */
.hero{padding:150px 0 64px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(ellipse 90% 72% at 50% 0%,#000 35%,transparent 78%);-webkit-mask-image:radial-gradient(ellipse 90% 72% at 50% 0%,#000 35%,transparent 78%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:64px;align-items:center}
.hero-copy{position:relative;z-index:1;max-width:660px}
.hero-visual{min-width:0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--lime)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--lime)}
.hero h1{font-size:clamp(48px,6.4vw,96px);line-height:.98;letter-spacing:-.05em;font-weight:800;margin:26px 0 26px}
.hero h1 span{color:var(--lime)}
.hero-lead{max-width:560px;font-size:18px;line-height:1.65;color:rgba(255,255,255,.78)}
.hero-brand{margin:28px 0 0;font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.88)}
.hero-actions{display:flex;align-items:center;gap:30px;margin-top:36px;flex-wrap:wrap}

/* ---- hero system diagram (DATA / CODE / SIGNAL) ----------- */
.system-diagram{margin-top:64px;position:relative;z-index:1;border:1px solid var(--line);background:var(--ink-2);border-radius:var(--radius);padding:22px 24px 26px}
/* compact variant used inside the desktop hero column */
.system-diagram--hero{margin-top:0;padding:18px 20px 22px}
.diagram-head{position:relative;display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px}
.system-diagram--hero .diagram-head{padding-bottom:12px;margin-bottom:14px}
.diagram-title{font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--lime)}
.diagram-sub{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.42)}

/* signal travelling along the header rail (subtle, meaningful) */
.signal-rail{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.signal-rail i{position:absolute;top:0;left:0;width:4px;height:4px;border-radius:50%;background:var(--lime);transform:translateY(-1.5px);animation:rail-travel 4.5s ease-in-out infinite}
@keyframes rail-travel{0%{left:0;opacity:0}8%{opacity:1}92%{opacity:1}100%{left:calc(100% - 4px);opacity:0}}

.diagram-grid{display:grid;grid-template-columns:minmax(130px,1fr) minmax(0,2fr) minmax(130px,1fr);grid-template-rows:repeat(5,auto);grid-template-areas:
  "in1 st1 out1"
  "in2 st2 out2"
  "in3 st3 out3"
  "in4 st4 out4"
  "in5 st5 out5";
  gap:14px 24px;align-items:center}
.system-diagram--hero .diagram-grid{gap:10px 18px}
.diagram-cell{min-width:0}

.input{display:flex;align-items:center;gap:10px}
.in-label{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:#fff}
.out-label{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:#fff}
.output{display:flex;align-items:center;justify-content:flex-end;gap:10px;text-align:right}
.arrow{font-family:var(--mono);color:rgba(255,255,255,.35);font-size:14px;line-height:1;flex:none}
.input .arrow{margin-left:auto}
.system-diagram--hero .in-label,.system-diagram--hero .out-label{font-size:11px}
.system-diagram--hero .arrow{font-size:12px}

.layer-tag{display:inline-flex;align-items:center;font-family:var(--mono);font-size:9px;font-weight:600;letter-spacing:.16em;padding:2px 7px;border:1px solid var(--line);border-radius:2px;color:rgba(255,255,255,.6);white-space:nowrap}
.layer-tag.is-signal{color:var(--lime);border-color:rgba(201,255,56,.45)}
.layer-tag.is-code{color:rgba(255,255,255,.78);border-color:rgba(255,255,255,.22)}
/* light-section variants (division meta, case chips) */
.section-light .layer-tag{color:var(--muted);border-color:var(--dark-line)}
.section-light .layer-tag.is-signal{color:var(--lime-deep);border-color:rgba(92,122,0,.45)}
.section-light .layer-tag.is-code{color:var(--text);border-color:rgba(23,25,28,.28)}

.stage{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--ink-3);padding:13px 16px;border-radius:var(--radius);position:relative;z-index:1}
.system-diagram--hero .stage{padding:9px 12px}
.stage-num{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--lime);flex:none}
.stage-name{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.14em;color:rgba(255,255,255,.92)}
.system-diagram--hero .stage-name{font-size:10.5px}

/* node activation — signal passing through stages (purposeful, subtle) */
.stage::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--lime);flex:none;animation:stage-pulse 2.6s ease-out infinite}
@keyframes stage-pulse{0%{box-shadow:0 0 0 0 rgba(201,255,56,.55)}70%{box-shadow:0 0 0 7px rgba(201,255,56,0)}100%{box-shadow:0 0 0 0 rgba(201,255,56,0)}}
.diagram-grid>.stage:nth-child(7)::before{animation-delay:.45s}
.diagram-grid>.stage:nth-child(8)::before{animation-delay:.9s}
.diagram-grid>.stage:nth-child(9)::before{animation-delay:1.35s}
.diagram-grid>.stage:nth-child(10)::before{animation-delay:1.8s}

.output.is-ongoing{opacity:.8}
.output.is-ongoing .arrow{color:rgba(255,255,255,.28)}
.output.is-ongoing .out-label{color:rgba(255,255,255,.45)}

/* ============================================================
   DIVISIONS — open engineering columns (not cards)
   ============================================================ */
.divisions{padding:110px 0}
.division-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--text)}
.division-card{position:relative;padding:44px 0 24px;display:flex;flex-direction:column;background:none;color:var(--text);border:0}
.division-card+.division-card{padding-left:44px;border-left:1px solid var(--dark-line)}
.division-card:hover .division-tagline{color:var(--lime-deep)}
.division-card:hover .division-num{color:var(--lime-deep)}
.division-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.division-num{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--muted);transition:color .2s ease}
.division-card h3{font-size:21px;font-weight:800;letter-spacing:.01em}
.division-tagline{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--lime-deep);margin-top:8px;transition:color .2s ease}
.division-graphic{width:100%;height:auto;margin:26px 0;border-top:1px solid var(--dark-line);border-bottom:1px solid var(--dark-line);padding:18px 0}
.division-desc{font-size:14.5px;color:var(--muted);line-height:1.65;margin-bottom:22px}
.division-caps{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.division-caps li{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;border:1px solid var(--dark-line);border-radius:2px;padding:7px 11px;color:var(--text)}

/* division graphics (inline SVG) — dark-background defaults */
.g-stroke path,.g-stroke rect,.g-stroke circle{stroke:rgba(255,255,255,.5);fill:none;stroke-width:1.5}
.g-stroke .dot{fill:#fff;stroke:none}
.g-line,.g-flow{stroke:rgba(255,255,255,.32);fill:none;stroke-width:1.2}
.g-dash{stroke:var(--lime);fill:none;stroke-width:1;stroke-dasharray:3 3}
.g-lime{fill:var(--lime);stroke:none}
.g-label{font-family:var(--mono);font-size:8.5px;letter-spacing:.14em;fill:rgba(255,255,255,.38)}
/* long flow captions under division diagrams — slightly smaller so they stay legible inside the 320-unit viewBox */
.g-caption{font-size:7.5px;letter-spacing:.06em}
.g-pixel{fill:rgba(255,255,255,.07);stroke:none}
.g-pixel-on{fill:var(--lime);stroke:none}
.g-box{stroke:rgba(255,255,255,.4);fill:rgba(255,255,255,.02);stroke-width:1.2}
.g-box-active{stroke:var(--lime);fill:rgba(201,255,56,.08);stroke-width:1.6}
.g-box-label{font-family:var(--mono);font-size:8.5px;letter-spacing:.04em;fill:rgba(255,255,255,.78);text-anchor:middle}
.g-box-label-active{fill:var(--lime);font-weight:700}

/* light-background variants (division section is light) */
.divisions .g-stroke path,.divisions .g-stroke rect,.divisions .g-stroke circle{stroke:rgba(23,25,28,.45)}
.divisions .g-stroke .dot{fill:var(--text)}
.divisions .g-line,.divisions .g-flow{stroke:rgba(23,25,28,.32)}
.divisions .g-dash{stroke:var(--lime-deep)}
.divisions .g-lime{fill:var(--lime-deep)}
.divisions .g-label{fill:rgba(23,25,28,.45)}
.divisions .g-pixel{fill:rgba(23,25,28,.06)}
.divisions .g-pixel-on{fill:var(--lime-deep)}
.divisions .g-box{stroke:rgba(23,25,28,.38);fill:rgba(23,25,28,.02)}
.divisions .g-box-active{stroke:var(--lime-deep);fill:rgba(92,122,0,.09)}
.divisions .g-box-label{fill:rgba(23,25,28,.72)}
.divisions .g-box-label-active{fill:var(--lime-deep)}

/* division diagrams — shared process grammar (v3)
   numbered nodes, arrows, mono labels; used by all three division
   graphics and the LED proof diagram (dark defaults + light overrides) */
.g-node-label{font-family:var(--mono);font-size:8px;letter-spacing:.08em;fill:rgba(255,255,255,.62);text-anchor:middle}
.g-baseline{stroke:rgba(255,255,255,.22);stroke-width:1;stroke-dasharray:2 3;fill:none}
.g-tick{stroke:rgba(255,255,255,.28);stroke-width:1}
.g-bar{fill:rgba(201,255,56,.22);stroke:none}
.g-bar-on{fill:var(--lime);stroke:none}
.g-node-end{fill:var(--lime);stroke:var(--lime);stroke-width:1.2}
.g-node-end-text{fill:#10130F}
.g-glow{fill:rgba(201,255,56,.14)}
.divisions .g-node-label{fill:rgba(23,25,28,.62)}
.divisions .g-baseline{stroke:rgba(23,25,28,.24)}
.divisions .g-tick{stroke:rgba(23,25,28,.3)}
.divisions .g-bar{fill:rgba(92,122,0,.22)}
.divisions .g-bar-on{fill:var(--lime-deep)}
.divisions .g-node-end{fill:var(--lime-deep);stroke:var(--lime-deep)}
.divisions .g-node-end-text{fill:var(--paper)}
.divisions .g-glow{fill:rgba(92,122,0,.14)}

/* ============================================================
   PIPELINE
   ============================================================ */
.pipeline{padding:110px 0}
.pipeline-head{max-width:720px}
.pipeline-data-note{margin-top:16px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:rgba(255,255,255,.5)}
.pipeline-stages{position:relative;display:grid;grid-template-columns:repeat(6,1fr);gap:18px;margin-top:64px}
.pipeline-stages::before{content:"";position:absolute;top:26px;left:2.5%;right:2.5%;height:1px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.22) 0 6px,transparent 6px 12px)}
.pipeline-pulse{position:absolute;top:22px;left:2.5%;width:8px;height:8px;border-radius:50%;background:var(--lime);z-index:2;transform:translateX(-50%);animation:pipeline-travel 9s linear infinite}
@keyframes pipeline-travel{0%{left:2.5%;opacity:0}6%{opacity:1}94%{opacity:1}100%{left:97.5%;opacity:0}}
.pipeline article{position:relative;z-index:1;padding:0 4px}
.pipeline .stage-num{display:grid;place-items:center;width:52px;height:52px;border:1px solid rgba(255,255,255,.3);background:var(--ink-2);border-radius:50%;font-family:var(--mono);font-size:12px;font-weight:700;color:var(--lime);margin-bottom:18px}
.pipeline h3{font-size:14px;font-weight:800;letter-spacing:.12em;margin:0 0 10px}
.pipeline p{font-size:12.5px;color:rgba(255,255,255,.58);line-height:1.6;max-width:200px}

/* ============================================================
   CROSS-DIVISION STATEMENT
   ============================================================ */
.statement{padding:110px 0;text-align:center}
.statement-inner{max-width:900px;margin-inline:auto}
.statement h2{font-size:clamp(38px,5.4vw,66px);line-height:1.02;letter-spacing:-.045em;font-weight:800;margin-top:18px}
.statement-sub{font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--lime-deep);margin:10px 0 30px}
.statement-copy{color:var(--muted);font-size:17px;line-height:1.75;max-width:720px;margin:0 auto 44px}
.statement-flow{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.statement-flow span{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.14em;border:1px solid var(--dark-line);padding:10px 16px;border-radius:2px}
.statement-flow i{font-style:normal;font-family:var(--mono);color:var(--lime-deep)}

/* ============================================================
   CAPABILITIES
   ============================================================ */
.capabilities{padding:110px 0}
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cap-col{border:1px solid var(--line);border-radius:var(--radius);background:var(--ink-2);padding:26px 24px 14px}
.cap-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:8px}
.cap-name{font-size:14px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.cap-list{display:grid}
.cap-list li{display:flex;align-items:baseline;gap:14px;padding:11px 4px;border-bottom:1px solid rgba(255,255,255,.07);font-size:13px;color:rgba(255,255,255,.78);transition:color .2s ease,background .2s ease}
.cap-list li:hover{color:#fff;background:var(--ink-3)}
.cap-list i{font-family:var(--mono);font-style:normal;font-size:10.5px;color:rgba(255,255,255,.4);min-width:22px}
.cap-list li:hover i{color:var(--lime)}

/* ============================================================
   SELECTED WORK
   ============================================================ */
.work{padding:110px 0}
.work-note{max-width:360px;font-size:12.5px;color:var(--muted);line-height:1.65}
.case-list{display:grid;gap:16px}
.case-row{display:grid;grid-template-columns:.9fr 1.6fr;gap:40px;border:1px solid var(--dark-line);border-radius:var(--radius);padding:34px 36px;transition:border-color .25s ease}
.case-row:hover{border-color:var(--text)}
.case-index{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--muted)}
.case-meta h3{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.02em;margin:12px 0 16px}
.case-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:var(--mono);font-size:10px;letter-spacing:.1em;border:1px solid var(--dark-line);padding:5px 10px;border-radius:2px}
.chip-warn{color:var(--lime-deep);border-color:rgba(92,122,0,.4)}
.case-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--dark-line);border:1px solid var(--dark-line);border-radius:var(--radius);overflow:hidden}
.case-fields>div{background:var(--paper);padding:16px 18px;min-height:88px}
.case-fields dt{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:var(--muted);margin-bottom:8px}
.case-fields dd{margin:0;font-size:13px;color:var(--text)}
.case-note{margin-top:34px;font-size:12.5px;color:var(--muted);max-width:760px;line-height:1.65}

/* ============================================================
   VISUAL EXPERIENCE PROOF
   ============================================================ */
.proof{padding:110px 0}
.proof-lead{max-width:420px;color:rgba(255,255,255,.66);font-size:15px;line-height:1.65}
.pixel-matrix{width:100%;height:auto;margin-bottom:44px;border:1px solid var(--line);border-radius:var(--radius);background:var(--ink-2)}
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.proof-tile{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--ink-2);transition:border-color .25s ease}
.proof-tile:hover{border-color:rgba(201,255,56,.4)}
.tile-index{font-family:var(--mono);font-size:10.5px;color:rgba(255,255,255,.4);letter-spacing:.14em}
.proof-tile h3{font-family:var(--mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;color:var(--lime);margin:14px 0 10px}
.proof-tile p{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.65}
.proof-note{margin-top:36px;font-size:12.5px;color:rgba(255,255,255,.5);max-width:780px;line-height:1.65}

/* ============================================================
   ENGINEERING PRINCIPLES
   ============================================================ */
.principles{padding:110px 0}
.principles-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.principle{border:1px solid var(--dark-line);border-radius:var(--radius);padding:28px 24px;transition:border-color .25s ease}
.principle:hover{border-color:var(--text)}
.p-num{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--lime-deep)}
.principle h3{font-size:15px;font-weight:800;letter-spacing:.08em;margin:16px 0 10px}
.principle p{font-size:13px;color:var(--muted);line-height:1.65}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{padding:110px 0}
.contact-grid{display:grid;grid-template-columns:.9fr 1.35fr;gap:70px;align-items:start}
.contact-info h2{font-size:clamp(34px,4.4vw,54px);line-height:1.05;letter-spacing:-.04em;margin:18px 0 22px}
.contact-copy{color:rgba(255,255,255,.68);max-width:440px;font-size:15.5px;line-height:1.7;margin:0 0 26px}
.contact-mail{font-family:var(--mono);font-size:15px;color:var(--lime);border-bottom:1px solid rgba(201,255,56,.4);padding-bottom:3px;transition:border-color .2s ease}
.contact-mail:hover{border-color:var(--lime)}

.contact-form{display:grid}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.contact-form label>span{display:block;font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.55);margin-bottom:7px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;background:var(--ink-3);border:1px solid var(--line);color:#F2F1EC;padding:13px 14px;border-radius:var(--radius);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.contact-form input::placeholder{color:rgba(255,255,255,.3)}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--lime);box-shadow:0 0 0 3px rgba(201,255,56,.16)}
.contact-form select option{background:var(--ink-3);color:#F2F1EC}
.contact-form textarea{resize:vertical;margin-top:14px}
.form-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:18px}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:12.5px;color:rgba(255,255,255,.66);cursor:pointer;max-width:430px;line-height:1.55}
.checkbox input{width:auto;margin-top:3px;accent-color:var(--lime)}
.checkbox span{font-family:var(--sans);font-size:12.5px;text-transform:none;letter-spacing:0;color:rgba(255,255,255,.66);margin:0}
.checkbox a{text-decoration:underline;text-underline-offset:2px;color:rgba(255,255,255,.85)}
.hidden-field{display:none}
.form-status{font-size:13px;margin-top:16px;color:var(--lime);min-height:20px}
.form-status.is-error{color:#FF8B7B}
.contact-form input:user-invalid,.contact-form select:user-invalid,.contact-form textarea:user-invalid{border-color:#FF8B7B}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{padding:70px 0 0;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:50px;padding-bottom:56px}
.footer-brand .logo{font-size:26px}
.footer-baseline{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--lime);margin:16px 0 22px}
.footer address{font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.8}
.footer h3{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.5);margin:0 0 18px}
.footer nav{display:grid;gap:11px;font-size:13.5px}
.footer nav a{color:rgba(255,255,255,.78);transition:color .2s ease}
.footer nav a:hover{color:var(--lime)}
.footer-contact{display:grid;gap:16px}
.footer-mail{font-family:var(--mono);font-size:14px;color:var(--lime)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;border-top:1px solid var(--line);font-size:12px;color:rgba(255,255,255,.45)}
.footer-watermark{overflow:hidden;text-align:center;font-family:var(--mono);font-size:clamp(34px,7.2vw,120px);font-weight:700;letter-spacing:-.02em;color:rgba(255,255,255,.045);line-height:1.05;white-space:nowrap;padding:10px 0 26px;user-select:none}

/* ============================================================
   SCROLL REVEAL (added by JS, respects reduced motion)
   ============================================================ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-revealed{opacity:1;transform:none}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;transition-delay:0s !important}
  .reveal{opacity:1;transform:none}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1120px){
  .desktop-nav{gap:20px}
  .hero-grid{gap:44px}
  .division-card{padding:36px 0 20px}
  .division-card+.division-card{padding-left:30px}
  .pipeline-stages{gap:12px}
  .principles-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}

@media (max-width:960px){
  /* hero stacks: copy first, engineering visual below (allowed for mobile) */
  .hero-grid{grid-template-columns:1fr;gap:48px;align-items:start}
}

@media (max-width:900px){
  .desktop-nav,.desktop-cta,.desktop-only{display:none}

  .menu-button{display:grid;margin-left:auto;width:44px;height:44px;background:none;border:1px solid var(--line);border-radius:var(--radius);place-content:center;gap:6px;cursor:pointer;color:#fff}
  .menu-button span{width:20px;border-top:2px solid currentColor;transition:transform .25s ease}
  .menu-button[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
  .menu-button[aria-expanded="true"] span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}

  .mobile-menu{display:block;position:fixed;inset:84px 0 0;background:var(--ink);border-top:1px solid var(--line);padding:34px 24px 40px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .25s ease,transform .25s ease,visibility .25s ease}
  .mobile-menu.is-open{opacity:1;visibility:visible;transform:none}
  .mobile-menu nav{display:grid;gap:6px}
  .mobile-menu nav>a:not(.button){font-size:26px;font-weight:700;letter-spacing:-.02em;padding:14px 0;border-bottom:1px solid var(--line);color:#fff}
  .mobile-menu nav>a:not(.button):hover{color:var(--lime)}
  .mobile-sub{display:grid;gap:2px;padding:4px 0 12px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .mobile-sub a{font-size:16px;font-weight:600;letter-spacing:0;color:rgba(255,255,255,.72);padding:9px 0;transition:color .2s ease}
  .mobile-sub a:hover{color:var(--lime)}
  .mobile-actions{display:flex;align-items:center;gap:22px;padding-top:26px}
  .mobile-actions .button{margin-left:auto}
  body.menu-open{overflow:hidden}

  /* hero diagram: intentional vertical flow */
  .diagram-grid{grid-template-columns:1fr;grid-template-areas:"in1" "in2" "in3" "in4" "in5" "st1" "st2" "st3" "st4" "st5" "out1" "out2" "out3" "out4" "out5";gap:12px}
  .stage{border-left:2px solid rgba(201,255,56,.4)}
  .input .arrow{display:none}

  .division-grid{grid-template-columns:1fr;border-top:2px solid var(--text)}
  .division-card{padding:34px 0}
  .division-card+.division-card{padding-left:0;border-left:0;border-top:1px solid var(--dark-line)}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .cap-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:50px}
  .case-row{grid-template-columns:1fr;gap:28px}

  .pipeline-stages{grid-template-columns:1fr;gap:0}
  .pipeline-stages::before{display:none}
  .pipeline-pulse{display:none}
  .pipeline article{position:relative;padding:16px 0 16px 72px}
  .pipeline .stage-num{position:absolute;left:0;top:16px;margin:0}
  .pipeline article::before{content:"";position:absolute;left:25px;top:0;bottom:0;border-left:1px dashed rgba(255,255,255,.25)}
  .pipeline article:last-child::before{bottom:60%}
  .pipeline p{max-width:none}
}

@media (max-width:640px){
  .container{width:min(calc(100% - 32px),var(--max))}
  .hero{padding:132px 0 40px}
  .hero h1{font-size:clamp(44px,13vw,64px)}
  .hero-actions{align-items:flex-start;flex-direction:column;gap:22px}
  .system-diagram{padding:20px 16px 24px;margin-top:0}
  .diagram-head{flex-direction:column;align-items:flex-start;gap:8px}

  .form-grid{grid-template-columns:1fr}
  .form-footer{align-items:flex-start;flex-direction:column}
  .case-fields{grid-template-columns:1fr 1fr}
  .proof-grid{grid-template-columns:1fr}
  .principles-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}

  .head-row{flex-direction:column;align-items:flex-start;gap:18px}
  .cap-list li{font-size:12.5px}
}

/* ============================================================
   DIVISION INTERACTIVE LAYER — BUILD THE SYSTEM (v4)
   micro-animations, detail CTAs, detail modals
   ============================================================ */

/* ---- division card title as trigger ------------------------ */
.division-title{margin:0}
.division-title button{display:inline;padding:0;margin:0;border:0;background:none;font:inherit;color:inherit;letter-spacing:inherit;text-align:left;cursor:pointer}
.division-title button:hover{color:var(--lime-deep)}
.division-title button:hover{text-decoration:underline;text-decoration-color:rgba(92,122,0,.45);text-underline-offset:4px}

/* ---- division card actions (CTA + optional replay) ---------- */
.division-actions{display:flex;align-items:center;gap:24px;margin-top:26px;flex-wrap:wrap}
.division-more{display:inline-flex;align-items:center;gap:8px;padding:0 0 5px;border:0;border-bottom:1px solid var(--dark-line);background:none;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--text);cursor:pointer;transition:color .2s ease,border-color .2s ease}
.division-more:hover{color:var(--lime-deep);border-color:var(--lime-deep)}
.division-more span[aria-hidden]{font-size:15px;line-height:1}
.division-replay{display:inline-flex;align-items:center;gap:7px;padding:0;border:0;background:none;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);cursor:pointer;opacity:0;pointer-events:none;visibility:hidden;transition:opacity .3s ease,color .2s ease,visibility .3s}
.division-replay:hover{color:var(--lime-deep)}
.division-card.anim-played .division-replay{opacity:1;pointer-events:auto;visibility:visible}

/* ---- micro-animation grammar (SVG) -------------------------- */
/* base state = pre-animation (sparse); anim = keyframes; anim-done = explicit final */
.division-graphic .fx{opacity:0;transform-box:fill-box;transform-origin:center}
.division-graphic .fx-rise{transform-origin:50% 100%}
.division-graphic .fx-draw{stroke-dasharray:var(--len,120);stroke-dashoffset:var(--len,120)}
.division-graphic .fx-temp,.division-graphic .fx-travel,.division-graphic .fx-sweep{opacity:0;transform-box:fill-box;transform-origin:center}

.division-graphic.anim .fx{animation:fx-in .55s ease forwards;animation-delay:var(--d,0s)}
.division-graphic.anim .fx-rise{animation:fx-rise .9s cubic-bezier(.3,.7,.2,1) forwards;animation-delay:var(--d,0s)}
.division-graphic.anim .fx-draw{animation:fx-draw .8s ease forwards;animation-delay:var(--d,0s)}
.division-graphic.anim .fx-travel{animation:fx-travel 1.4s ease-in-out forwards;animation-delay:var(--d,0s)}
.division-graphic.anim .fx-sweep{animation:fx-sweep 1.2s ease-in-out forwards;animation-delay:var(--d,0s)}

@keyframes fx-in{from{opacity:0}to{opacity:1}}
@keyframes fx-rise{from{opacity:0;transform:scaleY(.12)}to{opacity:1;transform:scaleY(1)}}
@keyframes fx-draw{from{stroke-dashoffset:var(--len,120)}to{stroke-dashoffset:0}}
@keyframes fx-travel{0%{transform:translateX(0);opacity:0}12%{opacity:1}85%{opacity:1}100%{transform:translateX(var(--tx,120px));opacity:0}}
@keyframes fx-sweep{0%{transform:translateX(0);opacity:0}10%{opacity:.9}90%{opacity:.9}100%{transform:translateX(var(--tx,120px));opacity:0}}

/* final (held) state — set explicitly so reduced-motion and replay stay consistent */
.division-graphic.anim-done .fx{opacity:1;transform:none}
.division-graphic.anim-done .fx-draw{stroke-dashoffset:0}
.division-graphic.anim-done .fx-temp,.division-graphic.anim-done .fx-travel,.division-graphic.anim-done .fx-sweep{opacity:0;transform:none}

/* ---- new division-graphic atoms (dark defaults + light variants) ---- */
.g-chip-label{font-family:var(--mono);font-size:7.5px;font-weight:600;letter-spacing:.06em;fill:rgba(23,25,28,.72);text-anchor:middle}
.g-lime-line{stroke:var(--lime);fill:none;stroke-width:1.4}
.g-lime-arrow{fill:var(--lime);stroke:none}
.g-sweep{fill:var(--lime);stroke:none}
.g-faint{fill:rgba(255,255,255,.07)}
.divisions .g-chip-label{fill:rgba(23,25,28,.72)}
.divisions .g-lime-line{stroke:var(--lime-deep)}
.divisions .g-lime-arrow{fill:var(--lime-deep)}
.divisions .g-sweep{fill:var(--lime-deep)}

/* ============================================================
   DIVISION DETAIL MODALS (native <dialog>, dark system panel)
   ============================================================ */
.division-dialog{border:0;padding:0;background:transparent;color:#F2F1EC;max-width:none;max-height:none;width:min(980px,calc(100% - 48px));margin:auto}
.division-dialog::backdrop{background:rgba(10,12,14,.78);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.division-dialog[open]{animation:modal-in .3s ease}
@keyframes modal-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
body.modal-open{overflow:hidden}
.modal-panel{position:relative;background:var(--ink);border:1px solid var(--line);border-radius:var(--radius);padding:40px 46px 36px;max-height:calc(100vh - 48px);overflow:auto}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}
.modal-meta{display:flex;align-items:center;gap:14px}
.modal-head .division-num{font-size:13px}
.modal-close{display:inline-flex;align-items:center;gap:8px;flex:none;padding:9px 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--ink-2);color:rgba(255,255,255,.85);font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;cursor:pointer;transition:border-color .2s ease,color .2s ease}
.modal-close:hover{border-color:var(--lime);color:var(--lime)}
.modal-panel h2{font-size:clamp(26px,3.4vw,42px);letter-spacing:-.03em;font-weight:800;line-height:1.05;margin:26px 0 0}
.modal-intro{max-width:780px;font-size:15px;line-height:1.7;color:rgba(255,255,255,.72);margin-top:14px}
.modal-visual{margin:28px 0 30px;border:1px solid var(--line);border-radius:var(--radius);background:var(--ink-2);padding:20px}
.modal-figure{width:100%;height:auto;color:var(--lime)}
.modal-sections{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.modal-sections section{background:var(--ink-2);padding:24px 26px}
.modal-sections h3{font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--lime);margin-bottom:14px}
.modal-sections ul{display:grid}
.modal-sections li{display:flex;align-items:baseline;gap:12px;padding:9px 2px;border-bottom:1px solid rgba(255,255,255,.07);font-size:13.5px;line-height:1.55;color:rgba(255,255,255,.82)}
.modal-sections li:last-child{border-bottom:0}
.modal-sections i{font-family:var(--mono);font-style:normal;font-size:10px;color:var(--lime);min-width:20px}
.modal-cta{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.modal-cta-note{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:rgba(255,255,255,.5);max-width:360px;line-height:1.6}

/* modal responsive: near-fullscreen desktop -> full-screen mobile */
@media (max-width:900px){
  .division-dialog{width:100%;max-width:100%;height:100%;max-height:100%;margin:0}
  .modal-panel{max-height:100vh;height:100%;border:0;border-radius:0;padding:26px 20px 32px}
  .modal-sections{grid-template-columns:1fr}
  .modal-cta{align-items:flex-start;flex-direction:column}
}

/* reduced motion: skip assembly, show complete final states */
@media (prefers-reduced-motion:reduce){
  .division-graphic .fx{opacity:1;transform:none;animation:none !important;stroke-dashoffset:0}
  .division-graphic .fx-temp,.division-graphic .fx-travel,.division-graphic .fx-sweep{opacity:0;transform:none;animation:none !important}
  .division-replay{display:none}
}