/* =====================================================
   Saturday Labs — Design System
   Palette: deep navy base + logo accents (pink/orange/blue/purple)
   Display: Space Grotesk · Body: Inter
   ===================================================== */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  /* Base */
  --bg:            #060820;
  --bg-2:          #0a0f2e;
  --surface:       #10173d;
  --surface-2:     #171f4d;
  --border:        rgba(255,255,255,.06);
  --border-strong: rgba(255,255,255,.14);

  /* Logo-derived accents */
  --pink:   #e94eb0;
  --orange: #ff8a3d;
  --amber:  #ffb84d;
  --blue:   #4dc4ff;
  --purple: #7b5cff;

  /* Signature aurora gradient (used sparingly) */
  --aurora: linear-gradient(135deg, var(--pink) 0%, var(--orange) 35%, var(--amber) 55%, var(--blue) 100%);
  --aurora-soft: linear-gradient(135deg, rgba(233,78,176,.22), rgba(255,138,61,.18) 40%, rgba(77,196,255,.22));

  /* Text */
  --text:  #eef1ff;
  --muted: #8892c8;
  --dim:   #5e6798;

  /* Sizing */
  --nav-h: 72px;
  --max:   1200px;
  --max-narrow: 880px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;

  /* Motion */
  --ease: cubic-bezier(.22,.61,.36,1);
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  font-feature-settings:'ss01','cv11';
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* Reduce motion respect */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* =====================================================
   Global backdrop — starfield + aurora orbs
   Fixed, behind everything, on every page
   ===================================================== */
.bg-stage{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-stage canvas{position:absolute;inset:0;width:100%;height:100%}
.bg-stage .orb{position:absolute;border-radius:50%;filter:blur(120px);opacity:.32;mix-blend-mode:screen}
.bg-stage .orb.p{width:640px;height:640px;background:var(--pink);top:-14%;right:-12%;animation:drift 18s var(--ease) infinite}
.bg-stage .orb.o{width:520px;height:520px;background:var(--orange);bottom:-18%;left:-8%;animation:drift 22s var(--ease) infinite reverse}
.bg-stage .orb.b{width:380px;height:380px;background:var(--blue);top:38%;left:44%;animation:drift 26s var(--ease) infinite 4s}
@keyframes drift{
  0%,100%{transform:translate(0,0) scale(1)}
  33%    {transform:translate(40px,-30px) scale(1.05)}
  66%    {transform:translate(-30px,40px) scale(.95)}
}
.bg-stage .grid{position:absolute;inset:0;background-image:
  linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
}

.wrap{position:relative;z-index:1}

/* =====================================================
   Navigation
   ===================================================== */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  background:rgba(6,8,32,.55);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:var(--max);margin:0 auto;
  height:var(--nav-h);padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--text)}
.nav-brand img{height:34px;width:auto;display:block}
.nav-brand-text{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.1rem;letter-spacing:-.02em;color:var(--text)}
.nav-links{display:flex;align-items:center;gap:.4rem;list-style:none}
.nav-links a{
  color:var(--muted);text-decoration:none;
  font-size:.92rem;font-weight:500;
  padding:.55rem .95rem;border-radius:8px;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{
  content:'';display:block;height:2px;margin-top:6px;
  background:var(--aurora);border-radius:2px;
}
.nav-cta{
  padding:.6rem 1.15rem;border-radius:999px;
  background:var(--text);color:var(--bg);
  font-weight:600;font-size:.88rem;text-decoration:none;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,255,255,.15)}

.nav-toggle{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:.4rem}
.nav-toggle svg{width:24px;height:24px}

@media(max-width:820px){
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(6,8,32,.96);
    backdrop-filter:blur(20px);
    padding:1rem 1.5rem 1.5rem;
    border-bottom:1px solid var(--border);
    transform:translateY(-120%);opacity:0;pointer-events:none;
    transition:transform .3s var(--ease), opacity .3s var(--ease);
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:.9rem .5rem;border-bottom:1px solid var(--border)}
  .nav-links a.active::after{display:none}
  .nav-cta{display:none}
}

/* =====================================================
   Layout containers
   ===================================================== */
.container{max-width:var(--max);margin:0 auto;padding:0 1.5rem}
.container-narrow{max-width:var(--max-narrow);margin:0 auto;padding:0 1.5rem}

section{padding:5rem 0}
@media(max-width:640px){section{padding:3.5rem 0}}

/* =====================================================
   Typography helpers
   ===================================================== */
.display{font-family:'Space Grotesk',sans-serif;font-weight:700;letter-spacing:-.03em;line-height:1.05}
.eyebrow{
  display:inline-block;
  font-family:'Space Grotesk',sans-serif;
  font-size:.72rem;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--blue);margin-bottom:1rem;
  padding:.3rem .7rem;border-radius:6px;
  background:rgba(77,196,255,.08);
  border:1px solid rgba(77,196,255,.18);
}
h1.display{font-size:clamp(2.6rem,6.5vw,5.5rem)}
h2.display{font-size:clamp(1.9rem,4vw,3.2rem)}
h3.display{font-size:clamp(1.2rem,2vw,1.5rem)}

.gradient-text{
  background:var(--aurora);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

.lede{font-size:clamp(1.05rem,1.4vw,1.2rem);color:var(--muted);max-width:640px;line-height:1.7}

/* =====================================================
   Buttons
   ===================================================== */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.9rem 1.6rem;border-radius:999px;
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.95rem;
  text-decoration:none;cursor:pointer;border:none;
  transition:transform .2s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease);
}
.btn-primary{
  background:var(--aurora);color:#0a0620;
  box-shadow:0 6px 24px rgba(233,78,176,.28);
  position:relative;overflow:hidden;
}
.btn-primary::after{
  content:'';position:absolute;inset:0;background:var(--aurora);
  filter:brightness(1.1);opacity:0;transition:opacity .3s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(233,78,176,.42)}
.btn-primary:hover::after{opacity:1}
.btn-primary span{position:relative;z-index:1}

.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid var(--border-strong);
}
.btn-ghost:hover{border-color:rgba(255,255,255,.35);background:rgba(255,255,255,.03)}

/* =====================================================
   Cards
   ===================================================== */
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:1.8rem;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  position:relative;
  transition:border-color .3s var(--ease), transform .3s var(--ease);
}
.card:hover{border-color:var(--border-strong);transform:translateY(-3px)}

/* Aurora edge card — signature look for feature blocks */
.card-aurora{position:relative;background:var(--surface);border:1px solid transparent}
.card-aurora::before{
  content:'';position:absolute;inset:0;border-radius:var(--r-md);
  padding:1px;
  background:var(--aurora);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:.5;transition:opacity .3s var(--ease);
  pointer-events:none;
}
.card-aurora:hover::before{opacity:1}

/* =====================================================
   Footer
   ===================================================== */
.footer{
  border-top:1px solid var(--border);
  padding:3rem 0 2rem;
  margin-top:4rem;
  background:linear-gradient(180deg, transparent, rgba(0,0,0,.3));
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;
  max-width:var(--max);margin:0 auto;padding:0 1.5rem;
}
.footer-brand{display:flex;align-items:center;gap:.6rem;margin-bottom:1rem}
.footer-brand img{height:32px}
.footer-brand span{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem}
.footer-tag{color:var(--muted);font-size:.9rem;max-width:340px;line-height:1.6}
.footer h4{font-family:'Space Grotesk',sans-serif;font-size:.8rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:1rem}
.footer ul{list-style:none}
.footer li{margin-bottom:.55rem}
.footer a{color:var(--muted);text-decoration:none;font-size:.92rem;transition:color .2s var(--ease)}
.footer a:hover{color:var(--text)}
.footer-bottom{
  max-width:var(--max);margin:2.5rem auto 0;padding:1.5rem 1.5rem 0;
  border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;
  color:var(--dim);font-size:.82rem;flex-wrap:wrap;gap:1rem;
}
@media(max-width:720px){
  .footer-grid{grid-template-columns:1fr;gap:2rem}
}

/* =====================================================
   Page hero (reused on inner pages)
   ===================================================== */
.page-hero{padding:5rem 0 3rem;text-align:center}
.page-hero h1{margin-bottom:1.2rem}
.page-hero .lede{margin:0 auto}

/* =====================================================
   Utility
   ===================================================== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
@media(max-width:820px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}

.hide-mobile{display:initial}
@media(max-width:640px){.hide-mobile{display:none}}