/* ============ TOKENS ============ */
:root{
  --red:#E8413C; --orange:#F2872E; --gold:#F6C638; --leaf:#2E7D43; --maroon:#6E1E1E; --magenta:#E0337E;
  --display:'Fraunces',Georgia,serif;
  --body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'Space Mono','SFMono-Regular',ui-monospace,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --maxw:1280px;
}
[data-theme="dark"]{
  --bg:#0E0709; --bg2:#160C0F; --panel:#1A0F12; --panel2:#22141A;
  --ink:#FBEDE4; --ink-soft:#D8BBA8; --ink-mute:#977564;
  --line:rgba(255,210,160,.13); --line-strong:rgba(255,210,160,.26);
  --grid:rgba(255,180,120,.05);
  --sun-a:#E8413C; --sun-b:#F2872E; --sun-c:#F6C638;
  --card:rgba(255,255,255,.035); --card-bd:rgba(255,255,255,.08);
  --glow:.85; --invert:0;
}
[data-theme="light"]{
  --bg:#FFF6EA; --bg2:#FFEFD9; --panel:#FFFFFF; --panel2:#FFF3E2;
  --ink:#2A1410; --ink-soft:#6B4A36; --ink-mute:#9C7660;
  --line:rgba(120,60,20,.13); --line-strong:rgba(120,60,20,.24);
  --grid:rgba(120,60,20,.05);
  --sun-a:#E8413C; --sun-b:#F2872E; --sun-c:#F6C638;
  --card:rgba(255,255,255,.66); --card-bd:rgba(120,60,20,.1);
  --glow:.5; --invert:0;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);-webkit-font-smoothing:antialiased;
  overflow-x:hidden;transition:background .6s var(--ease),color .6s var(--ease);min-height:100vh;display:flex;flex-direction:column}
img{max-width:100%;display:block}
em{font-style:italic}
a{color:inherit}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.2rem,4vw,3rem)}

/* techy backdrop grid */
.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(circle at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 30%,transparent 78%)}
.grain{position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* labels / kickers: techy mono */
.mono{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase}
.kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:var(--orange);
  display:inline-flex;align-items:center;gap:.6rem;margin-bottom:1.2rem}
.kicker::before{content:"";width:26px;height:1px;background:var(--orange);display:inline-block}

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;
  padding:1rem clamp(1.2rem,4vw,3rem);transition:padding .4s var(--ease),background .4s,border-color .4s;
  border-bottom:1px solid transparent}
.nav.scrolled{padding:.55rem clamp(1.2rem,4vw,3rem);background:color-mix(in srgb,var(--bg) 80%,transparent);
  backdrop-filter:blur(18px) saturate(1.4);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;text-decoration:none}
.brand-logo{height:44px;width:auto;transition:height .4s var(--ease);filter:drop-shadow(0 4px 14px rgba(0,0,0,.25))}
.nav.scrolled .brand-logo{height:37px}
.nav-links{display:flex;align-items:center;gap:clamp(.7rem,2vw,2rem)}
.nav-links a{text-decoration:none;color:var(--ink-soft);font-weight:500;font-size:.94rem;position:relative;transition:color .25s}
.nav-links a.active,.nav-links a:hover{color:var(--ink)}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;
  background:linear-gradient(90deg,var(--red),var(--gold));transition:width .3s var(--ease)}
.nav-links a.active:not(.nav-cta)::after,.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{padding:.5rem 1.15rem;border-radius:8px;background:linear-gradient(120deg,var(--red),var(--orange));
  color:#fff!important;font-weight:600;box-shadow:0 6px 20px -8px var(--orange)}
.nav-cta:hover{transform:translateY(-1px)}
.nav-right{display:flex;align-items:center;gap:1rem}

/* theme toggle */
.theme-toggle{background:none;border:0;cursor:pointer;padding:0}
.tt-track{display:block;width:50px;height:27px;border-radius:7px;border:1px solid var(--line-strong);
  background:var(--card);position:relative}
.tt-thumb{position:absolute;top:2px;left:2px;width:21px;height:21px;border-radius:5px;
  background:linear-gradient(135deg,var(--gold),var(--orange));transition:transform .45s var(--ease-out);box-shadow:0 2px 8px rgba(0,0,0,.35)}
[data-theme="light"] .tt-thumb{transform:translateX(23px);background:linear-gradient(135deg,#fff,var(--gold))}

/* hamburger */
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:22px;height:2px;background:var(--ink);transition:.3s}
.mobile-menu{position:fixed;inset:0;z-index:999;background:var(--bg);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:1.6rem;transform:translateY(-100%);transition:transform .5s var(--ease);padding-top:4rem}
.mobile-menu.open{transform:none}
.mobile-menu a{font:600 1.6rem/1 var(--display);text-decoration:none;color:var(--ink)}

/* ============ PAGE INTRO / HEADER STRIP ============ */
.page-head{padding:9rem 0 3rem;position:relative}
.page-head .wrap{display:flex;flex-direction:column;gap:.6rem}
.page-title{font:900 clamp(2.6rem,7vw,5.4rem)/.96 var(--display);letter-spacing:-.025em}
.page-title em{background:linear-gradient(105deg,var(--red),var(--orange) 55%,var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:500}
.page-sub{color:var(--ink-soft);font-size:1.12rem;line-height:1.6;max-width:56ch}
.page-index{font-family:var(--mono);font-size:.74rem;letter-spacing:.2em;color:var(--ink-mute);text-transform:uppercase}

/* ============ BUTTONS ============ */
.btn{display:inline-flex;align-items:center;gap:.6rem;justify-content:center;padding:.9rem 1.7rem;border-radius:9px;
  font-weight:600;text-decoration:none;font-size:1rem;cursor:pointer;border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s,border-color .3s,color .3s}
.btn-primary{background:linear-gradient(120deg,var(--red),var(--orange));color:#fff;box-shadow:0 14px 36px -14px var(--orange)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 50px -16px var(--orange)}
.btn-ghost{border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--orange);color:var(--orange)}
.btn .arr{transition:transform .3s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}

/* sun element */
.sun{position:absolute;z-index:-1;border-radius:50%;
  background:radial-gradient(circle at 50% 60%,var(--sun-c),var(--sun-b) 42%,var(--sun-a) 70%,transparent 73%);
  opacity:var(--glow);transition:background 1s var(--ease),opacity .6s}

/* ============ FOOTER ============ */
.foot{margin-top:auto;border-top:1px solid var(--line);background:var(--bg2);transition:background .6s}
.foot .wrap{padding-top:3.2rem;padding-bottom:2.4rem;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
.foot-logo{height:54px;width:auto;margin-bottom:1rem}
.foot-brand p{color:var(--ink-soft);font-size:.9rem;line-height:1.55;max-width:34ch}
.foot-col h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-mute);margin-bottom:1rem}
.foot-col a{display:block;text-decoration:none;color:var(--ink-soft);font-size:.95rem;margin-bottom:.6rem;transition:color .25s}
.foot-col a:hover{color:var(--orange)}
.foot-base{border-top:1px solid var(--line)}
.foot-base .wrap{display:flex;justify-content:space-between;padding:1.2rem clamp(1.2rem,4vw,3rem);font-family:var(--mono);font-size:.72rem;color:var(--ink-mute);letter-spacing:.08em;flex-wrap:wrap;gap:.5rem}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.page-fade{animation:pageFade .6s var(--ease-out) both}
@keyframes pageFade{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ============ RESPONSIVE ============ */
@media (max-width:880px){
  .nav-links{display:none}
  .burger{display:flex}
  .foot .wrap{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:560px){
  .foot .wrap{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}