/* ============================================================
   SEM RUBICON - Clean Signal
   Light ground · one accent per view · the crossing motif.
   ============================================================ */

@font-face{font-family:'Bricolage';src:url('../fonts/BricolageGrotesque-Bold.woff2') format('woff2');font-weight:700;font-display:swap;}
@font-face{font-family:'Bricolage';src:url('../fonts/BricolageGrotesque-Regular.woff2') format('woff2');font-weight:400;font-display:swap;}
@font-face{font-family:'Instrument';src:url('../fonts/InstrumentSans-Regular.woff2') format('woff2');font-weight:400;font-display:swap;}
@font-face{font-family:'Instrument';src:url('../fonts/InstrumentSans-Bold.woff2') format('woff2');font-weight:700;font-display:swap;}
@font-face{font-family:'Mono';src:url('../fonts/JetBrainsMono-Regular.woff2') format('woff2');font-weight:400;font-display:swap;}

:root{
  --bg:#FAFBFE; --paper:#FFFFFF;
  --blue:#2E6FF2; --blue-700:#1F57CC; --indigo:#6C5CE7;
  --ink:#15192B; --soft:#6A7185;
  --line:#E6EAF5; --line2:#EEF1F9; --green:#11A88B;
  --maxw:1180px; --pad:clamp(20px,5vw,64px);
  --r:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  background:var(--bg);color:var(--ink);
  font-family:'Instrument',system-ui,sans-serif;
  font-size:17px;line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:rgba(46,111,242,.16);}
a{color:inherit;text-decoration:none;}
img,svg{display:block;}

/* faint modular grid - the honest schema underneath */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line2) 1px,transparent 1px),
    linear-gradient(90deg,var(--line2) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 35%,transparent 78%);
          mask-image:radial-gradient(120% 90% at 50% 0%,#000 35%,transparent 78%);
  opacity:.6;
}

/* typography */
h1,h2,h3,.wm{font-family:'Bricolage',sans-serif;font-weight:700;letter-spacing:-.02em;line-height:1.0;}
.kicker{font-family:'Mono',monospace;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);}
.lbl{font-family:'Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft);}
.mono{font-family:'Mono',monospace;}
.soft{color:var(--soft);}
.blue{color:var(--blue);} .green{color:var(--green);} .indigo{color:var(--indigo);}

/* layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);position:relative;z-index:1;}
section{position:relative;z-index:1;}

/* ---- NAV ---- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s var(--ease);}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:18px var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:20px;}
.nav.scrolled{background:rgba(250,251,254,.82);backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);}
.nav.scrolled .nav-in{padding-block:13px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:21px;width:auto;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{font-size:14px;color:var(--soft);transition:color .2s;}
.nav-links a:hover{color:var(--ink);}
.nav-cta{display:inline-flex;align-items:center;gap:8px;font-family:'Mono',monospace;font-size:12px;
  letter-spacing:.05em;color:#fff;background:var(--ink);padding:9px 15px;border-radius:999px;transition:.2s var(--ease);}
.nav-cta:hover{background:var(--blue);transform:translateY(-1px);}
.lang{display:flex;font-family:'Mono',monospace;font-size:12px;border:1px solid var(--line);border-radius:999px;overflow:hidden;}
.lang a{padding:6px 11px;color:var(--soft);transition:.18s;}
.lang a.on{background:var(--ink);color:#fff;}
.lang a:not(.on):hover{color:var(--ink);}
.burger{display:none;}

/* ---- HERO ---- */
.hero{padding-top:clamp(120px,18vh,200px);padding-bottom:clamp(60px,9vh,110px);position:relative;}
.hero .kicker{margin-bottom:26px;}
.hero h1{font-size:clamp(33px,4.7vw,60px);max-width:17em;}
.hero h1 .br{white-space:nowrap;}
@media(max-width:560px){.hero h1 .br{white-space:normal;}}
.hero h1 .br{display:block;}
.hero-sub{font-family:'Bricolage',sans-serif;font-weight:400;font-size:clamp(20px,2.6vw,30px);
  color:var(--ink);margin-top:24px;max-width:30ch;line-height:1.18;letter-spacing:-.01em;}
.hero-lede{margin-top:22px;max-width:52ch;color:var(--soft);font-size:clamp(16px,1.5vw,18px);}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px;}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:'Mono',monospace;font-size:13px;letter-spacing:.04em;
  padding:14px 22px;border-radius:999px;transition:.22s var(--ease);border:1px solid transparent;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px -10px rgba(46,111,242,.7);}
.btn-primary:hover{background:var(--blue-700);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(46,111,242,.75);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--paper);}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px);}
.btn .arrow{transition:transform .25s var(--ease);}
.btn:hover .arrow{transform:translate(3px,-3px);}

/* hero crossing graphic */
.hero-graphic{position:absolute;right:var(--pad);top:clamp(120px,16vh,190px);width:min(40vw,440px);
  pointer-events:none;z-index:0;opacity:0;}
.hero-graphic.in{opacity:1;transition:opacity .9s var(--ease) .3s;}
.draw{stroke-dasharray:1;stroke-dashoffset:1;pathLength:1;}
.draw.go{animation:draw 1.9s var(--ease) .35s forwards;}
@keyframes draw{to{stroke-dashoffset:0;}}
.tip{opacity:0;}
.tip.go{animation:pop .5s var(--ease) 2.0s forwards;}
@keyframes pop{from{opacity:0;transform:scale(.2);}to{opacity:1;transform:scale(1);}}

/* section heading furniture */
.sec{padding-block:clamp(64px,11vh,128px);}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:44px;position:relative;}
.sec-head::before{content:"";position:absolute;left:0;top:-14px;width:15px;height:15px;
  border-top:2px solid var(--blue);border-left:2px solid var(--blue);}
.sec-head .lbl{padding-left:0;}
.sec h2{font-size:clamp(32px,4.6vw,56px);max-width:16ch;}

/* ---- IDEA / manifesto ---- */
.idea{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:
  radial-gradient(80% 120% at 88% 0%,rgba(108,92,231,.05),transparent 60%);}
.idea h2{font-size:clamp(28px,4.4vw,54px);max-width:24ch;line-height:1.05;}
.idea p{margin-top:28px;max-width:60ch;color:var(--soft);font-size:clamp(17px,1.7vw,20px);}
.idea .note{margin-top:30px;}
.idea-graphic{display:block;width:100%;max-width:820px;margin-top:38px;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);}
/* clear panel-vs-sales chart */
.chart{margin-top:40px;max-width:860px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:26px 30px 24px;}
.chart-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px 18px;}
.chart-title{font-family:'Bricolage',sans-serif;font-weight:700;font-size:clamp(18px,2vw,21px);letter-spacing:-.01em;color:var(--ink);}
.chart-legend{display:flex;gap:18px;}
.chart-legend .lg{display:inline-flex;align-items:center;gap:7px;font-family:'Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--soft);}
.chart-legend .dot{width:10px;height:10px;border-radius:50%;flex:none;}
.chart-legend .dot-sales{background:var(--blue);}
.chart-legend .dot-panel{background:var(--indigo);}
.chart-plot{margin-top:14px;}
.chart-plot svg{display:block;width:100%;height:auto;}
.chart-caption{margin-top:14px;color:var(--soft);font-size:14.5px;line-height:1.5;max-width:66ch;}
@media(max-width:560px){.chart{padding:20px 18px;}.chart-head{flex-direction:column;align-items:flex-start;}}

/* ---- WORK cards ---- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:30px 28px;
  position:relative;overflow:hidden;transition:.3s var(--ease);}
.card::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--blue);transition:width .4s var(--ease);}
.card:hover{transform:translateY(-4px);border-color:#D7DEF0;box-shadow:0 22px 44px -28px rgba(21,25,43,.32);}
.card:hover::after{width:100%;}
.card .num{font-family:'Mono',monospace;font-size:12px;color:var(--blue);letter-spacing:.1em;}
.card h3{font-size:23px;margin-top:14px;}
.card .benefit{margin-top:12px;color:var(--soft);font-size:15px;line-height:1.45;}
.card ul{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.card li{font-size:14.5px;color:var(--ink);display:flex;gap:10px;line-height:1.45;}
.card li::before{content:"›";color:var(--blue);}

/* ---- INDUSTRIES ---- */
.industries{border-top:1px solid var(--line);}
.industries h2{max-width:18ch;}
.industry-grid{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.industry-tile{flex:1 1 232px;max-width:266px;min-height:138px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 22px;display:flex;flex-direction:column;transition:.25s var(--ease);}
.industry-tile:hover{transform:translateY(-3px);border-color:#D7DEF0;box-shadow:0 18px 36px -30px rgba(21,25,43,.34);}
.industry-tile h3{font-size:18px;line-height:1.14;letter-spacing:-.01em;}
.industry-tile p{font-family:'Mono',monospace;font-size:11px;line-height:1.4;letter-spacing:.05em;text-transform:uppercase;color:var(--soft);margin-top:auto;padding-top:18px;}

/* ---- APPROACH / proof ---- */
.approach-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;}
.principles{display:flex;flex-direction:column;gap:22px;}
.principle{display:flex;gap:18px;align-items:flex-start;}
.principle .pn{font-family:'Bricolage',sans-serif;font-weight:700;font-size:26px;color:var(--blue);line-height:1;min-width:36px;}
.principle h3{font-size:18px;}
.principle p{font-size:15px;color:var(--soft);margin-top:5px;max-width:46ch;}
.proof{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:30px;}
.proof .lbl{margin-bottom:16px;}
.proof-quote{font-family:'Bricolage',sans-serif;font-weight:400;font-size:clamp(19px,2vw,23px);line-height:1.28;letter-spacing:-.01em;}
.proof-quote b{font-weight:700;}
.chip{display:inline-flex;align-items:center;gap:7px;font-family:'Mono',monospace;font-size:11.5px;letter-spacing:.04em;
  padding:6px 11px;border-radius:999px;border:1px solid #CDEFE6;color:var(--green);background:#F4FCFA;}
.proof svg{margin-top:22px;width:100%;height:auto;}

/* ---- STACK strip ---- */
.stack{border-top:1px solid var(--line);}
.stack-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;}
.stat{background:var(--bg);padding:26px 24px;}
.stat .big{font-family:'Bricolage',sans-serif;font-weight:700;font-size:clamp(30px,3.2vw,42px);color:var(--ink);line-height:.9;letter-spacing:-.02em;white-space:nowrap;}
.stat .big .u{font-size:.42em;color:var(--blue);}
.stat .cap{font-family:'Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--soft);margin-top:12px;}
.tools{margin-top:36px;display:flex;flex-wrap:wrap;gap:10px;}
.tool{font-family:'Mono',monospace;font-size:12.5px;color:var(--soft);border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;background:var(--paper);transition:.2s;}
.tool:hover{color:var(--ink);border-color:#D7DEF0;}

/* ---- CONTACT ---- */
.contact{text-align:center;}
.contact h2{font-size:clamp(32px,5vw,62px);margin-inline:auto;max-width:20ch;}
.contact .blue{color:var(--blue);}
.contact-actions{margin-top:40px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.contact .meta{margin-top:34px;font-family:'Mono',monospace;font-size:13px;color:var(--soft);}
.contact .meta a{color:var(--blue);}

/* ---- FOOTER ---- */
.foot{border-top:1px solid var(--line);padding-block:34px;}
.foot-in{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.foot img{height:18px;}
.foot .lbl{font-size:10.5px;}

/* reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.rv.in{opacity:1;transform:none;}
.rv-d1{transition-delay:.08s;} .rv-d2{transition-delay:.16s;} .rv-d3{transition-delay:.24s;}

/* ---- responsive ---- */
@media(max-width:880px){
  .hero-graphic{display:none;}
  .cards{grid-template-columns:1fr;}
  .industry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .approach-grid{grid-template-columns:1fr;gap:34px;}
  .stack-grid{grid-template-columns:repeat(2,1fr);}
  .nav-links{position:fixed;inset:0 0 auto 0;top:0;flex-direction:column;background:rgba(250,251,254,.98);
    backdrop-filter:blur(16px);padding:90px 32px 32px;gap:24px;align-items:flex-start;
    transform:translateY(-100%);transition:.4s var(--ease);height:100vh;border-bottom:1px solid var(--line);}
  .nav-links.open{transform:none;}
  .nav-links a{font-size:22px;font-family:'Bricolage',sans-serif;font-weight:700;color:var(--ink);}
  .burger{display:flex;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;z-index:60;}
  .burger span{width:24px;height:2px;background:var(--ink);transition:.3s var(--ease);}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .burger.open span:nth-child(2){opacity:0;}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
}
@media(max-width:520px){
  .stack-grid{grid-template-columns:1fr;}
  .industry-grid{grid-template-columns:1fr;}
  .nav-cta{display:none;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .rv{opacity:1;transform:none;}.draw{stroke-dashoffset:0;}.tip{opacity:1;}.hero-graphic{opacity:1;}
}