/* Kaireen site v3: tokens, reset, type, buttons, nav, footer.
   Shape system (one rule, used everywhere): buttons 10px, windows and cards 14px,
   chips and toggles full pill. Accent is the brand violet only; the green and teal
   that appear inside the live demos belong to the panel UI itself, not the page. */

:root{
  --ground:#0a0c10; --ground-2:#0d1016; --sheet:#12161d; --sheet-2:#171c25;
  --line:#232a35; --line-soft:#1b212b;
  --ink:#edeff4; --dim:#a3acba; --faint:#6f7886;
  --vio:#8b6cff; --vio-2:#b7a3ff; --vio-deep:#6d4de0;
  --vio-wash:rgba(139,108,255,.10);
  --mono:"Cascadia Mono",Consolas,ui-monospace,monospace;
  --sans:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,sans-serif;
  --r-btn:10px; --r-card:14px;
  --ease:cubic-bezier(.16,1,.3,1);
  --nav-h:64px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);
     font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,video{max-width:100%;display:block}
button{font:inherit;color:inherit}
::selection{background:rgba(139,108,255,.35)}
:focus-visible{outline:2px solid var(--vio-2);outline-offset:3px;border-radius:6px}

.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
section{padding:96px 0;position:relative}
@media (max-width:760px){section{padding:64px 0}}

h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.08}
h2{font-size:clamp(30px,4vw,46px)}
h3{font-size:22px;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
.lede{color:var(--dim);font-size:18px;max-width:60ch}

.sec-head{max-width:680px;margin:0 0 48px}
.sec-head.center{margin:0 auto 48px;text-align:center}
.sec-head .lede{margin-top:16px}
.sec-head.center .lede{margin-left:auto;margin-right:auto}
.eyebrow{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;
         text-transform:uppercase;color:var(--vio-2);margin-bottom:14px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;
     height:48px;padding:0 22px;border-radius:var(--r-btn);font-weight:600;font-size:15.5px;
     border:1px solid transparent;cursor:pointer;
     transition:transform .2s var(--ease),background .2s,border-color .2s}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--vio);color:#0b0a14}
.btn-primary:hover{background:var(--vio-2)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#3a4352;background:var(--sheet)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;height:var(--nav-h);z-index:30;
     background:rgba(10,12,16,.72);backdrop-filter:blur(14px) saturate(140%);
     -webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid transparent;
     transition:border-color .3s}
.nav.scrolled{border-bottom-color:var(--line-soft)}
.nav-in{height:100%;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.24em;font-size:14px}
.bdia{width:12px;height:12px;border-radius:3px;transform:rotate(45deg);
      background:linear-gradient(135deg,#b7a3ff,#6d4de0)}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:14.5px;color:var(--dim)}
.nav-links a:hover{color:var(--ink)}
@media (max-width:860px){.nav-links{display:none}.nav .btn{margin-left:auto}}

/* scroll reveal: content is visible by default, only hidden once JS opts in */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* footer */
footer{border-top:1px solid var(--line-soft);padding:28px 0 36px;color:var(--faint);font-size:13.5px}
.foot-in{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.foot-links{display:flex;gap:18px;margin-left:auto;flex-wrap:wrap}
.foot-links a:hover{color:var(--ink)}

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