/* ============================================================
   PADDOX v2 — institutional / show-first
   Palette pulled from the logo: electric blue, deep blue, two grays.
   Type: Geist (neo-grotesque, Palantir-adjacent) + Geist Mono.
   Rules: no dot+label eyebrows, no thin-outline rounded chips,
   no glowing dots/lines, white glow (never blue), no grid-on-glow.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500;600&display=swap');

:root{
  /* brand — from logo vectors */
  --blue:       #40B9FF;
  --blue-deep:  #005FCE;
  --gray-1:     #CECECE;
  --gray-2:     #5F5F5F;

  /* Alura sub-brand (approximated from alura.co — violet content brand) */
  --alura:       #8B5CF6;
  --alura-deep:  #6D28D9;
  --alura-light: #C4B5FD;
  --alura-ink:   #0B0913;

  /* dark canvas */
  --ink:        #08090A;
  --bg:         #0B0C0E;
  --bg-2:       #101214;
  --panel:      #15171A;
  --panel-2:    #1B1E22;
  --hair:       rgba(255,255,255,.10);
  --hair-2:     rgba(255,255,255,.055);

  /* text on dark */
  --fg:         #F5F6F7;
  --fg-soft:    #C2C6CB;
  --mut:        #888E95;
  --mut-2:      #5A6068;

  /* light canvas (for the mix) */
  --paper:      #F3F3F1;
  --paper-2:    #E9E9E6;
  --ink-on-paper:#0C0D0F;
  --mut-paper:  #6B6E72;
  --hair-paper: rgba(12,13,15,.12);

  --f-disp: 'Geist', 'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
  /* labels/eyebrows now use the sans family (no monospace — reads institutional, not AI) */
  --f-mono: 'Geist', 'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
  --ease: cubic-bezier(.22,.61,.36,1);

  --maxw: 1320px;
  --pad: 44px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:var(--f-disp);font-weight:400;line-height:1.5;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:var(--blue);color:#02121f}

/* ---- type ---- */
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.02;letter-spacing:-.03em}
.kicker{
  font-family:var(--f-mono);font-size:12px;font-weight:500;
  letter-spacing:.04em;text-transform:uppercase;color:var(--mut);
}
.display{font-weight:600;font-size:clamp(46px,8vw,128px);line-height:.92;letter-spacing:-.045em}
.h-xl{font-size:clamp(34px,4.8vw,68px);letter-spacing:-.035em;line-height:1.0}
.lede{font-size:clamp(17px,1.45vw,21px);line-height:1.5;color:var(--fg-soft);font-weight:400}
.tnum{font-variant-numeric:tabular-nums}

/* ---- layout ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* ---- mark ---- */
.mark{display:inline-block;vertical-align:middle;line-height:0;width:1.15em;height:1.15em}
.mark svg{width:100%;height:100%;display:block;overflow:visible}
.mark .pmk-1{fill:var(--blue)}
.mark .pmk-2{fill:var(--gray-1)}
.mark .pmk-3{fill:var(--blue-deep)}

/* ---- buttons (filled or solid-outline, no thin hairline pills) ---- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--f-disp);font-weight:500;font-size:15px;letter-spacing:-.01em;
  padding:13px 20px;border:0;cursor:pointer;transition:.2s var(--ease);white-space:nowrap;
}
.btn-arrow{transition:transform .25s var(--ease)}
.btn:hover .btn-arrow{transform:translateX(3px)}
.btn-solid{background:var(--fg);color:#08090a}
.btn-solid:hover{background:#fff}
.btn-blue{background:var(--blue-deep);color:#fff}
.btn-blue:hover{background:var(--blue);color:#04121f}
.btn-line{background:rgba(255,255,255,.04);color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--hair)}
.btn-line:hover{background:rgba(255,255,255,.09)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#1b1e22}

/* ---- nav (sticky, theme-aware) ---- */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;height:72px;display:flex;align-items:center;
  transition:background .35s var(--ease),backdrop-filter .35s var(--ease),border-color .35s var(--ease);
  border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in oklab,var(--bg) 80%,transparent);backdrop-filter:blur(16px);border-bottom-color:var(--hair-2)}
.nav .wrap{width:100%;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.03em;font-size:19px}
.brand .mark{width:25px;height:25px}
.nav-links{display:flex;gap:6px;margin-left:14px}
.nav-links a{font-size:15px;color:var(--mut);padding:8px 12px;transition:color .16s var(--ease);white-space:nowrap}
.nav-links a:hover{color:var(--fg)}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:10px}

/* light variant of the nav (over paper sections) */
.nav.on-paper .nav-links a{color:var(--mut-paper)}
.nav.on-paper .nav-links a:hover{color:var(--ink-on-paper)}
.nav.on-paper .brand{color:var(--ink-on-paper)}
.nav.on-paper.scrolled{background:color-mix(in oklab,var(--paper) 82%,transparent);border-bottom-color:var(--hair-paper)}
.nav.on-paper .mark .pmk-2{fill:var(--gray-2)}
.nav.on-paper .btn-line{color:var(--ink-on-paper);background:rgba(12,13,15,.04);box-shadow:inset 0 0 0 1.5px var(--hair-paper)}
.nav.on-paper .btn-solid{background:var(--ink);color:#fff}

/* ---- nav dropdown ---- */
.nav-item{position:relative;display:inline-flex;align-items:center}
.nav-item>a{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--mut);padding:8px 12px;transition:color .16s var(--ease);white-space:nowrap}
.nav-item>a:hover{color:var(--fg)}
.nav.on-paper .nav-item>a{color:var(--mut-paper)}
.nav.on-paper .nav-item>a:hover{color:var(--ink-on-paper)}
.nav-item.has-sub>a::after{content:"";width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-1px);opacity:.45;transition:opacity .2s var(--ease)}
.nav-item.has-sub:hover>a::after,.nav-item.has-sub:focus-within>a::after{opacity:.9}
.subnav{position:absolute;top:100%;left:0;min-width:248px;padding:8px;z-index:90;
  background:var(--panel);border:1px solid var(--hair);border-radius:13px;
  box-shadow:0 24px 64px -28px rgba(0,0,0,.85);
  display:flex;flex-direction:column;gap:2px;
  opacity:0;transform:translateY(7px);pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease)}
.nav-item:hover .subnav,.nav-item:focus-within .subnav{opacity:1;transform:none;pointer-events:auto}
.subnav a{display:flex;flex-direction:column;gap:3px;padding:11px 13px;border-radius:9px;color:var(--fg);background:none}
.subnav a:hover{background:rgba(255,255,255,.06)}
.subnav .sub-nm{font-size:14.5px;font-weight:500;color:var(--fg);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.subnav .sub-ds{font-family:var(--f-mono);font-size:11px;letter-spacing:.01em;color:var(--mut)}
.nav.on-paper .subnav{background:var(--paper);border-color:var(--hair-paper);box-shadow:0 24px 64px -30px rgba(12,13,15,.4)}
.nav.on-paper .subnav a{color:var(--ink-on-paper)}
.nav.on-paper .subnav a:hover{background:rgba(12,13,15,.05)}
.nav.on-paper .subnav .sub-nm{color:var(--ink-on-paper)}
.nav.on-paper .subnav .sub-ds{color:var(--mut-paper)}
.alura-word{font-family:var(--f-disp);font-weight:600;letter-spacing:-.02em;color:#fff}
.alura-word .ad{color:var(--alura-light)}
.subnav .alura-row .sub-nm{font-size:17px;display:flex;align-items:center;gap:9px}
.alura-logo-sm{height:17px;width:auto;display:block}
.subnav .ext{color:var(--mut);font-size:13px}

/* ---- sections + reveal + footer (shared) ---- */
.section{padding:clamp(88px,12vw,168px) 0}
.section-tight{padding:clamp(60px,8vw,104px) 0}
.eyebrow{font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
.paper .eyebrow,.eyebrow.on-paper{color:var(--mut-paper)}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease) var(--rd,0ms),transform .8s var(--ease) var(--rd,0ms)}
.reveal.in{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-26px);transition:opacity .8s var(--ease) var(--rd,0ms),transform .8s var(--ease) var(--rd,0ms)}
.reveal-l.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal,.reveal-l{opacity:1!important;transform:none!important}}

.footer{background:var(--ink);border-top:1px solid var(--hair-2);padding:84px 0 44px}
.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:44px}
.footer h5{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--mut-2);margin:0 0 18px;font-weight:500}
.footer-col a{display:block;color:var(--mut);font-size:15px;padding:6px 0;transition:color .15s}
.footer-col a:hover{color:var(--fg)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:72px;padding-top:30px;border-top:1px solid var(--hair-2);color:var(--mut-2);font-size:13px;font-family:var(--f-mono)}
@media(max-width:880px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px}.footer-bottom{flex-direction:column;gap:14px;align-items:flex-start}}

@media (prefers-reduced-motion:reduce){*{animation:none!important}}