:root{--bg:#f3f0e8;--card:#fbf9f4;--ink:#101114;--mute:#62646c;--line:#dcd7c9;--acc:#2b3cff;--acc-soft:#e3e6ff;--dark:#101114}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px;background:var(--bg)}
body{background:var(--bg);color:var(--ink);font:17px/1.6 'Inter Tight',system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
em{font-family:'Instrument Serif',serif;font-style:italic;font-weight:400;color:var(--acc)}
h1,h2,h3{letter-spacing:-.03em;line-height:1.04;font-weight:600}
h2{font-size:clamp(2rem,4.6vw,3.8rem);max-width:17ch}
.label{font:500 12px 'JetBrains Mono',monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);margin-bottom:16px}
.label.light{color:#9aa3ff}
.sub{color:var(--mute);max-width:56ch;margin-top:16px}.sub.light{color:#b8bac6}
section{padding:clamp(64px,10vw,130px) clamp(18px,4vw,56px)}
.sec-head{margin-bottom:40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px}
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s,transform .8s cubic-bezier(.2,.7,.2,1)}.reveal.in{opacity:1;transform:none}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:14px clamp(18px,4vw,56px);background:rgba(243,240,232,.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-color:var(--line)}
.brand{font-weight:600;letter-spacing:-.02em;text-decoration:none;display:flex;align-items:center;gap:10px}
.mark{width:18px;height:18px;border-radius:6px;background:var(--acc);position:relative;display:inline-block}
.mark::after{content:'';position:absolute;inset:5px;border-radius:50%;background:var(--bg)}
.nav nav{display:flex;align-items:center;gap:26px;font-size:15px}
.nav nav a:not(.btn){text-decoration:none;color:var(--mute)}.nav nav a:not(.btn):hover{color:var(--ink)}
@media(max-width:860px){.nav nav a:not(.btn){display:none}}

/* buttons */
.btn{display:inline-block;font:500 15px 'Inter Tight',sans-serif;text-decoration:none;padding:13px 22px;border-radius:999px;border:1px solid var(--ink);color:var(--ink);background:transparent;cursor:pointer;transition:.2s}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--acc);border-color:var(--acc);color:#fff}.btn.primary:hover{box-shadow:0 10px 30px -10px var(--acc)}
.btn.dark{background:var(--ink);color:var(--bg)}
.btn.small{padding:9px 16px;font-size:14px}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(28px,5vw,70px);align-items:center;min-height:100svh;padding-top:120px;padding-bottom:70px}
.pill{display:inline-flex;align-items:center;gap:10px;font:500 12px 'JetBrains Mono',monospace;letter-spacing:.06em;border:1px solid var(--line);background:var(--card);padding:8px 14px;border-radius:999px;margin-bottom:26px}
.pill i{width:8px;height:8px;border-radius:50%;background:#1db954;box-shadow:0 0 0 0 rgba(29,185,84,.5);animation:pl 2s infinite}
@keyframes pl{70%{box-shadow:0 0 0 10px rgba(29,185,84,0)}100%{box-shadow:0 0 0 0 rgba(29,185,84,0)}}
h1{font-size:clamp(2.5rem,5.6vw,5rem)}
.lede{font-size:1.18rem;color:#3a3c43;margin:26px 0 30px;max-width:50ch}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.stack{margin-top:34px;font:13px 'JetBrains Mono',monospace;color:var(--mute)}.stack b{color:var(--ink);font-weight:500}
@media(max-width:940px){.hero{grid-template-columns:1fr;min-height:auto}}

/* flow card */
.flow{padding:18px 18px 16px;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:28px 28px;background-position:-1px -1px}
.flow-head{display:flex;justify-content:space-between;font:12px 'JetBrains Mono',monospace;color:var(--mute);background:var(--card);margin:-2px -2px 6px;padding:6px 8px;border-radius:10px}
.live{display:flex;align-items:center;gap:6px}.live i{width:7px;height:7px;border-radius:50%;background:var(--acc);animation:bl 1.4s infinite}@keyframes bl{50%{opacity:.25}}
#flowsvg{width:100%;height:auto;display:block}
.edge{fill:none;stroke:#b9b4a4;stroke-width:2;stroke-dasharray:5 6}
.node rect{fill:var(--card);stroke:var(--ink);stroke-width:1.5;transition:.2s}
.node text{font:500 14px 'Inter Tight',sans-serif;fill:var(--ink);pointer-events:none}
.node.human rect{fill:var(--acc);stroke:var(--acc)}.node.human text{fill:#fff}
.node:hover rect,.node:focus rect{fill:var(--acc-soft);stroke:var(--acc)}.node.human:hover rect,.node.human:focus rect{fill:#1f2ee0}
.node{cursor:pointer;outline:none}
.pulse{fill:var(--acc)}
.tip{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:14px;color:#3a3c43;min-height:3.4em;margin-top:6px}

/* packages */
.packages{background:var(--card);border-block:1px solid var(--line)}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.tab{font:500 15px 'Inter Tight',sans-serif;padding:11px 20px;border-radius:999px;border:1px solid var(--line);background:var(--bg);color:var(--ink);cursor:pointer;transition:.2s}
.tab:hover{border-color:var(--ink)}.tab.on{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.pkgs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:960px){.pkgs{grid-template-columns:1fr}}
.pkg{background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:26px;display:flex;flex-direction:column;gap:14px;animation:up .5s both}
@keyframes up{from{opacity:0;transform:translateY(14px)}}
.pkg h3{font-size:1.45rem}
.pkg dl{display:grid;gap:10px;font-size:15px}
.pkg dt{font:500 11px 'JetBrains Mono',monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--acc)}
.pkg dd{color:#3a3c43}
.pkg .gate{background:var(--acc-soft);border-radius:12px;padding:10px 12px}
.pkg a{margin-top:auto;font-weight:600;text-decoration:none;color:var(--acc)}.pkg a:hover{text-decoration:underline}

/* how */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
@media(max-width:960px){.steps{grid-template-columns:1fr 1fr}}@media(max-width:560px){.steps{grid-template-columns:1fr}}
.steps li{border-top:2px solid var(--ink);padding-top:18px}
.steps span{font:12px 'JetBrains Mono',monospace;color:var(--acc)}
.steps h3{font-size:1.4rem;margin:12px 0 8px}.steps p{color:var(--mute);font-size:15.5px}

/* roi */
.roi{background:var(--dark);color:var(--bg)}
.roi .sub{color:#b8bac6}
.roi-inner{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,70px);align-items:center;max-width:1200px;margin:auto}
@media(max-width:900px){.roi-inner{grid-template-columns:1fr}}
.calc{background:#181a20;border-color:#2a2d36;padding:26px;display:grid;gap:16px;color:var(--bg)}
.calc label{display:grid;gap:6px;font-size:14px;color:#b8bac6}
.calc input[type=number]{font:18px 'Inter Tight',sans-serif;background:#0e0f13;color:#fff;border:1px solid #2a2d36;border-radius:12px;padding:12px 14px;width:100%;outline:none}
.calc input[type=number]:focus{border-color:#7b86ff}
.calc input[type=range]{accent-color:var(--acc);width:100%}
.out{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:6px}
.out div{background:#0e0f13;border:1px solid #2a2d36;border-radius:14px;padding:14px}
.out small{display:block;color:#8d8f98;font-size:12px}.out strong{font:600 clamp(1.4rem,3vw,2rem)/1.2 'Inter Tight',sans-serif;letter-spacing:-.02em}
.fine{font-size:13px;color:#8d8f98}

/* work */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:960px){.cases{grid-template-columns:1fr}}
.case{padding:26px}.case .tag{font:11px 'JetBrains Mono',monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--acc)}
.case h3{font-size:1.4rem;margin:10px 0}.case p{color:#3a3c43;font-size:15.5px;margin-top:8px}.case b{font-weight:600}
.empty{grid-column:1/-1;padding:34px;font-size:1.1rem;max-width:62ch}

/* about */
.about{background:var(--card);border-block:1px solid var(--line)}
.about-grid{max-width:820px;margin:auto;display:grid;grid-template-columns:1fr;gap:clamp(28px,5vw,64px);align-items:center}
@media(max-width:860px){.about-grid{grid-template-columns:1fr}}
.about p{margin-top:16px;color:#3a3c43}.about h2{margin-bottom:6px}.about a{color:var(--acc);font-weight:500}

/* contact */
.contact{background:var(--dark);color:var(--bg)}
.contact-inner{max-width:1200px;margin:auto;display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(28px,5vw,70px);align-items:start}
@media(max-width:900px){.contact-inner{grid-template-columns:1fr}}
.form label{display:block;font:500 12px 'JetBrains Mono',monospace;letter-spacing:.1em;text-transform:uppercase;color:#8d8f98;margin:0 0 8px}
.form input,.form textarea,.form select{width:100%;font:16px 'Inter Tight',sans-serif;color:#fff;background:#181a20;border:1px solid #2a2d36;border-radius:12px;padding:14px 16px;outline:none;transition:border-color .2s}
.form input:focus,.form textarea:focus,.form select:focus{border-color:#7b86ff}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.form textarea{margin-bottom:18px;resize:vertical}
.note{margin-top:12px;font-size:14px;color:#8d8f98;min-height:1.4em}.note.ok{color:#7ee0a0}.note.err{color:#ff8c7a}
.hp{position:absolute!important;left:-9999px!important;opacity:0!important;height:0!important}
footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:30px clamp(18px,4vw,56px);font-size:14px;color:var(--mute)}
footer .links{display:flex;gap:22px}footer a{text-decoration:none}footer a:hover{color:var(--ink)}

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

/* ---------- phone optimisation ---------- */
.menu-btn{display:none}
@media(max-width:860px){
 .menu-btn{display:flex;flex-direction:column;justify-content:center;gap:6px;width:46px;height:46px;border:1px solid var(--line);border-radius:12px;background:var(--card);cursor:pointer;padding:0 13px;order:3}
 .menu-btn span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
 .menu-btn[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}
 .menu-btn[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}
 .nav{gap:10px}
 #mainNav{position:absolute;top:100%;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:6px clamp(18px,4vw,56px) 18px;display:none}
 #mainNav.open{display:flex}
 .nav nav a:not(.btn){display:block;padding:15px 0;font-size:18px;color:var(--ink);border-bottom:1px solid var(--line)}
 #mainNav .btn{margin-top:14px;text-align:center;padding:15px}
}
@media(max-width:600px){
 body{font-size:16px}
 section{padding:52px 18px}
 .sec-head{margin-bottom:28px}
 .hero{padding-top:92px;padding-bottom:44px;gap:30px}
 .pill{font-size:11px;margin-bottom:18px;max-width:100%}
 h1{font-size:clamp(2.1rem,9.4vw,2.6rem);line-height:1.06}
 h2{font-size:clamp(1.8rem,8vw,2.2rem)}
 .lede{font-size:1.04rem;margin:18px 0 22px}
 .cta-row{flex-direction:column}
 .cta-row .btn{width:100%;text-align:center;padding:15px 20px}
 .stack{margin-top:24px;font-size:12px;line-height:1.7}
 .flow{padding:12px 12px 12px}
 .node text{font-size:16.5px}
 .flow-head{font-size:11px}
 .tip{font-size:14px}
 .tabs{flex-wrap:nowrap;overflow-x:auto;margin:0 -18px 20px;padding:0 18px 6px;scrollbar-width:none}
 .tabs::-webkit-scrollbar{display:none}
 .tab{flex:0 0 auto;padding:12px 18px;min-height:44px}
 .pkg{padding:22px}
 .pkg a{padding:8px 0;display:inline-block}
 .calc{padding:20px}
 .out{grid-template-columns:1fr}
 .calc input[type=number]{padding:14px}
 .form input,.form textarea,.form select{padding:15px 16px}
 .contact .btn,.form .btn{width:100%;padding:16px}
 .steps{gap:26px}
 footer{flex-direction:column;gap:10px}
}