/* BASE: colors, dark mode, reset, buttons, scroll-reveal */
:root{--bg:#f6f7fb;--surface:#fff;--text:#161a33;--muted:#5b6080;--primary:#1a237e;--accent:#ff5722;--line:rgba(26,35,126,.1);--shadow:0 20px 50px rgba(26,35,126,.12);box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0d1020;--surface:#161a33;--text:#eef0ff;--muted:#a3a8cc;--primary:#7c8cff;--line:rgba(255,255,255,.1);--shadow:0 20px 50px rgba(0,0,0,.4)}}
:root[data-theme="dark"]{--bg:#0d1020;--surface:#161a33;--text:#eef0ff;--muted:#a3a8cc;--primary:#7c8cff;--line:rgba(255,255,255,.1);--shadow:0 20px 50px rgba(0,0,0,.4)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(80px + env(safe-area-inset-top,0px))}
body{background:var(--bg);color:var(--text);font-family:'Poppins',system-ui,sans-serif;line-height:1.7;overflow-x:hidden}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--surface)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border:0;border-radius:99px;background:linear-gradient(135deg,var(--accent),#ff8a50);color:#fff!important;font:600 .95rem 'Poppins',sans-serif;cursor:pointer;text-decoration:none;box-shadow:0 10px 24px rgba(255,87,34,.35);transition:transform .25s,box-shadow .25s}
.btn:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(255,87,34,.45)}
.btn.ghost{background:transparent;color:var(--primary)!important;border:2px solid var(--primary);box-shadow:none}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .9s,transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}