/* ============================================
   ai.doo Marketing Site — Shared Styles
   ============================================ */

/* Inter — self-hosted variable font (latin subset) */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root{
  --bg0:#0b1020;
  --bg1:#111a33;
  --ink:#eaf0ff;
  --muted:rgba(234,240,255,0.72);
  --accent:#2a8bc9;
  --accent2:#4db8ff;
  --card:rgba(255,255,255,0.06);
  --card2:rgba(255,255,255,0.09);
  --stroke:rgba(255,255,255,0.12);
  --radius:16px;
  --max:1080px;
  --shadow:0 16px 48px rgba(0,0,0,.30);
  --shadow2:0 8px 24px rgba(0,0,0,.20);
}

/* Reset & base */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(800px 600px at 20% 8%, rgba(77,184,255,.10), transparent 65%),
    radial-gradient(700px 500px at 80% 25%, rgba(42,139,201,.07), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  line-height:1.6;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:24px}

/* Skip link */
.skip-link{
  position:absolute;top:-100%;left:16px;
  padding:10px 18px;border-radius:10px;
  background:var(--accent);color:#fff;
  font-weight:600;font-size:14px;z-index:100;
  transition:top .15s ease;
}
.skip-link:focus{top:16px}

/* Header */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,16,32,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--stroke);
}
.nav{
  max-width:var(--max);margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.2px}
.logoMark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--card2);border:1px solid var(--stroke);overflow:hidden;
}
.logoMark img{width:34px;height:34px;display:block;filter:drop-shadow(0 1px 3px rgba(0,0,0,.45))}
.wordmark{display:inline-flex;align-items:baseline;font-weight:700;letter-spacing:-0.5px;font-size:18px;line-height:1}
.wm-ai,.wm-doo{color:var(--ink)}
.wm-dot{width:7px;height:7px;border-radius:999px;margin:0 5px 3px 5px;background:var(--accent2);display:inline-block}

nav{display:flex;gap:20px;align-items:center;color:var(--muted);font-weight:400;font-size:14px}
nav a{position:relative;padding:8px 2px;color:var(--muted);transition:color .15s ease}
nav a:hover{color:var(--ink)}
nav a:focus-visible{color:var(--ink)}
nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:3px;height:1.5px;
  background:var(--accent2);transform:scaleX(0);transform-origin:left;
  transition:transform .15s ease;border-radius:999px;opacity:.9;
}
nav a:hover::after,nav a:focus-visible::after{transform:scaleX(1)}

.navRight{display:flex;align-items:center;gap:10px}
.menuBtn{
  display:none;padding:10px 12px;border-radius:10px;
  border:1px solid var(--stroke);background:var(--card2);font-weight:600;color:var(--ink);
}
.mobileNav{
  overflow:hidden;max-height:0;border-top:1px solid var(--stroke);
  max-width:var(--max);margin:0 auto;transition:max-height .25s ease-out;
}
.mobileNav.open{max-height:320px}
.mobileNav a{display:block;padding:12px 24px;color:var(--muted);font-weight:400;border-bottom:1px solid var(--stroke)}
.mobileNav a:last-child{border-bottom:none}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:11px 18px;border-radius:10px;border:1px solid var(--stroke);
  background:var(--card);color:var(--ink);font-weight:600;font-size:14px;
  cursor:pointer;transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);border-color:rgba(42,139,201,.30);box-shadow:0 6px 20px rgba(0,0,0,.25)}
.btn:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}
.btn.primary{border-color:transparent;color:#fff;background:var(--accent);box-shadow:0 8px 24px rgba(42,139,201,.25)}
.btn.primary:hover{box-shadow:0 12px 32px rgba(42,139,201,.35)}
.btn.subtle{background:transparent;border-color:var(--stroke);color:var(--muted)}
.btn.subtle:hover{border-color:rgba(42,139,201,.25);color:var(--ink)}

/* Hero */
.hero{padding:100px 0 48px;display:grid;position:relative}
.pill{
  width:fit-content;display:inline-flex;align-items:center;gap:10px;
  padding:7px 14px;border-radius:999px;border:1px solid rgba(77,184,255,.18);
  background:rgba(77,184,255,.06);color:var(--muted);font-size:13px;font-weight:600;
  margin:0 0 12px;
}
h1{margin:0 0 24px;font-size:clamp(34px,3.8vw,56px);line-height:1.06;letter-spacing:-1px;max-width:20ch;font-weight:700;color:#fff}
.h2{margin:0 0 16px;font-size:28px;letter-spacing:-.6px;line-height:1.2;font-weight:700;color:#fff}
.sub{margin:0;color:var(--muted);font-size:clamp(16px,1.3vw,17px);max-width:56ch;line-height:1.65}
.ctaRow{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* Sections */
.section{padding:80px 0 80px}
.kicker{margin:0 0 8px;color:var(--muted);font-size:12px;letter-spacing:.3px;text-transform:uppercase;font-weight:600}
.lead{margin:0;color:var(--muted);max-width:60ch;font-size:15px;line-height:1.65}

/* Grid/cards */
.grid{display:grid;gap:20px;grid-template-columns:repeat(12,1fr);margin-top:24px}
.card{
  border:1px solid var(--stroke);background:var(--card);border-radius:14px;padding:24px;
  box-shadow:0 2px 8px rgba(0,0,0,.18);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.card:hover,.card:focus-visible{
  transform:translateY(-3px);border-color:rgba(42,139,201,.35);
  box-shadow:0 12px 32px rgba(0,0,0,.30);background:var(--card2);
}
.card h3{margin:0 0 10px;font-size:15px;letter-spacing:-.15px;font-weight:700;color:#fff}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}

.span3{grid-column:span 3}
.span4{grid-column:span 4}
.span6{grid-column:span 6}
.span12{grid-column:span 12}
.card.span12{padding:32px}

/* Chips */
.chips{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:999px;border:1px solid var(--stroke);
  background:var(--card);color:var(--muted);font-size:12px;font-weight:600;
}
.dot{width:7px;height:7px;border-radius:999px;background:var(--accent2)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:40px}
.step{padding:0 28px 0 0;position:relative}
.step:not(:last-child)::after{content:"";position:absolute;top:22px;right:14px;width:1px;height:40px;background:var(--stroke)}
.step-num{font-size:13px;font-weight:700;color:var(--accent2);letter-spacing:.5px;margin-bottom:12px;text-transform:uppercase}
.step h3{font-size:15px;font-weight:700;color:#fff;margin:0 0 8px}
.step p{font-size:14px;color:var(--muted);margin:0;line-height:1.6}

/* Feature list */
.featureList{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-direction:column;gap:8px}
.featureList li{font-size:13px;color:var(--muted);padding-left:16px;position:relative;line-height:1.5}
.featureList li::before{content:"";position:absolute;left:0;top:6px;width:5px;height:5px;border-radius:999px;background:var(--accent2);opacity:.7}

/* Pricing */
.pricingCard{background:var(--card2);border-color:rgba(42,139,201,.30)}
.pricingTier{display:flex;flex-direction:column}
.pricingBtnWrap{margin-top:auto;padding-top:20px}

/* Proof band */
.proof{
  margin-top:24px;border:1px solid var(--stroke);border-radius:var(--radius);
  background:var(--card);padding:24px;display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;
}
.proof .title{font-weight:700;color:#fff;margin:0;font-size:14px;letter-spacing:-.15px;min-width:200px}
.proof p{margin:0;color:var(--muted);font-size:14px;max-width:80ch;line-height:1.6}

/* CTA band */
.ctaBand{
  margin:64px 0 40px;padding:28px;border-radius:var(--radius);
  border:1px solid var(--stroke);background:var(--card2);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.ctaBand .title{font-weight:700;font-size:17px;margin:0 0 4px;color:#fff}
.ctaBand .small{margin:0;color:var(--muted);font-size:13px}

/* Footer */
footer{border-top:1px solid var(--stroke);padding:32px 0 48px;color:var(--muted);margin-top:48px}
.footerRow{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footerCol a{color:var(--muted);font-weight:400;display:inline-block;padding:3px 0}
.footerCol a:hover{color:var(--ink)}
.trustline{margin:10px 0 0;font-size:13px;color:var(--muted)}

/* Responsive */
@media (max-width:920px){
  .wrap{padding:20px}
  nav{display:none}
  .menuBtn{display:inline-flex}
  .span3,.span4,.span6{grid-column:span 12}
  .steps{grid-template-columns:1fr;gap:24px}
  .step:not(:last-child)::after{display:none}
  .step{padding:0;border-left:2px solid var(--stroke);padding-left:20px}
  .ctaBand{flex-direction:column;align-items:flex-start}
}

/* Animations */
@media (prefers-reduced-motion:no-preference){
  @keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
  .hero > *{animation:fadeUp .45s ease both}
  .hero > :nth-child(1){animation-delay:0s}
  .hero > :nth-child(2){animation-delay:.08s}
  .hero > :nth-child(3){animation-delay:.16s}
  .hero > :nth-child(4){animation-delay:.24s}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:0.01ms !important;animation-duration:0.01ms !important}
}