/* =========================================================================
   Cosmica Biosciences — Brand foundation (shared tokens, base, nav, buttons, footer)
   Load this first on every page; page-specific styles override after.
   ========================================================================= */


*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#07070E; --bg-elev:#0C0C18; --bg-card:#101022;
  --border:rgba(255,255,255,.07); --border-strong:rgba(255,255,255,.14); --line:rgba(255,255,255,.1);
  --text:#F5F5F7; --text-2:#A6A8BE; --text-3:#6B6D86;
  --ba-deep:#0F1547; --ba:#2C33B4; --ba-accent:#4F58D9; --ba-soft:#8B92F0; --ba-pale:#B9C0EC;
  --ba-red:#EB250F; --ba-red-soft:#FF6A4D;
  --display:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --serif:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --sans:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --max:1200px; --gutter:32px;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-weight:400;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.02em;color:var(--text)}
h1{font-size:clamp(40px,5.2vw,64px);line-height:1.05;letter-spacing:-.034em;font-weight:600}
h2{font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.03em}
h3{font-size:clamp(20px,2.1vw,26px);line-height:1.2;letter-spacing:-.02em}
p{color:var(--text-2);font-size:16px;line-height:1.65}
a{color:inherit}
em{font-style:italic}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.wide{max-width:1320px}
section{padding:112px 0;position:relative}
.alt{background:var(--bg-elev);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--ba-soft);display:inline-block;margin-bottom:20px}
.eyebrow.muted{color:var(--text-3)}
.lead{font-size:19px;line-height:1.6;color:var(--text-2);max-width:620px}
.section-head{max-width:760px;margin-bottom:60px}
.section-head p{margin-top:16px}
.grad{font-weight:600;background:linear-gradient(102deg,var(--ba-pale) 0%,#7B85EC 42%,var(--ba-red) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.accent{color:var(--ba-soft)}
.spark{color:var(--ba-red-soft)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============ NAV ============ */
nav.top{position:fixed;inset:0 0 auto 0;z-index:100;padding:18px 0;background:rgba(7,7,14,.5);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid transparent;transition:background .4s,border-color .4s,padding .3s}
nav.top.scrolled{background:rgba(7,7,14,.9);border-bottom:1px solid var(--border);padding:13px 0}
.nav-inner{max-width:var(--max);margin:0 auto;padding:0 var(--gutter);display:flex;align-items:center;justify-content:space-between}
.nav-logo{height:26px;width:auto;display:block;transition:opacity .2s}
.nav-logo:hover{opacity:.82}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{color:var(--text-2);text-decoration:none;font-size:14px;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-cta{padding:9px 19px;border:1px solid var(--border-strong);border-radius:100px;color:var(--text)!important;font-weight:500;transition:border-color .2s,background .2s}
.nav-cta:hover{border-color:var(--ba-soft);background:rgba(139,146,240,.08)}
@media(max-width:820px){.nav-links a:not(.nav-cta){display:none}}

/* ============ BUTTONS ============ */
.btn-primary{display:inline-flex;align-items:center;gap:9px;padding:15px 26px;background:var(--text);color:#07070E;text-decoration:none;border-radius:100px;font-weight:600;font-size:15px;border:none;cursor:pointer;position:relative;overflow:hidden;isolation:isolate;transition:transform .22s,box-shadow .22s,color .22s}
.btn-primary::before{content:"";position:absolute;inset:0;z-index:-1;opacity:0;background:linear-gradient(110deg,var(--ba-accent),var(--ba));transition:opacity .3s}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 14px 36px rgba(44,51,180,.4)}
.btn-primary:hover::before{opacity:1}
.btn-primary svg{transition:transform .22s}.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{display:inline-flex;align-items:center;gap:9px;padding:15px 24px;border:1px solid var(--border-strong);color:var(--text);text-decoration:none;border-radius:100px;font-size:15px;font-weight:500;transition:border-color .2s,color .2s}
.btn-ghost:hover{border-color:var(--ba-soft);color:var(--ba-pale)}
.btn-ghost svg{transition:transform .22s}.btn-ghost:hover svg{transform:translateX(3px)}
.tlink{display:inline-flex;align-items:center;gap:7px;color:var(--text-2);text-decoration:none;font-size:15px;font-weight:500;border-bottom:1px solid transparent;padding-bottom:3px;transition:color .2s,border-color .2s}
.tlink:hover{color:var(--text);border-color:var(--ba-soft)}
.tlink svg{transition:transform .2s}.tlink:hover svg{transform:translateX(3px)}

/* ============ FOOTER ============ */
footer.ft{position:relative;background:var(--bg);border-top:1px solid var(--border);padding:78px 0 40px;overflow:hidden}
footer.ft::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:60%;max-width:800px;height:1px;background:linear-gradient(to right,transparent,rgba(139,146,240,.32),transparent);filter:blur(.5px)}
.ft-inner{max-width:var(--max);margin:0 auto;padding:0 var(--gutter);position:relative;z-index:2}
.ft-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:56px;border-bottom:1px solid var(--border)}
.ft-brand{display:flex;flex-direction:column;gap:18px;max-width:320px}
.ft-brand img{height:40px;width:auto;display:block}
.ft-brand p{font-size:13.5px;line-height:1.6;color:var(--text-2);max-width:280px}
.ft-col-title{font-size:11px;text-transform:uppercase;letter-spacing:.2em;color:var(--text-3);font-weight:600;margin-bottom:18px}
.ft-links{display:flex;flex-direction:column;gap:12px}
.ft-links a{font-size:14px;color:var(--text-2);text-decoration:none;transition:color .2s;width:fit-content}
.ft-links a:hover{color:var(--text)}
.ft-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:30px;gap:20px;flex-wrap:wrap}
.ft-copy{font-size:12.5px;color:var(--text-3)}
.ft-legal{font-size:12px;color:var(--text-3);max-width:640px;line-height:1.5}
@media(max-width:860px){.ft-top{grid-template-columns:1fr 1fr;gap:36px}.ft-brand{grid-column:1/-1;max-width:100%}}