/* Scott Oldford · Perplexity Computer live training
   Brand tokens mirrored from using-perplexity-for-your-online-business.vercel.app (brand-0-43.css):
   Lora + Inter, warm ivory, near-black navy, gold CTA surfaces, night hero with mountain scene. */
:root{
  --display:"Lora",Georgia,serif;
  --body:"Inter",system-ui,sans-serif;
  --bg:#faf7f0;
  --bg2:#f3efe7;
  --paper:#fffefa;
  --ink:#4a4a4a;
  --ink-strong:#0f1729;
  --ink-soft:#625e57;
  --line:#ded9ce;
  --navy:#0f1729;
  --gold:#765d2f;
  --gold-2:#c9a45c;
  --gold-light:#e4c580;
  --gold-soft:#eee5d0;
  --night:#071017;
  --cream-on-night:#f5efe3;
  --gold-button:linear-gradient(135deg,#d3ab5f 0%,#b8963e 100%);
  --r:2px;
  --wrap:1120px;
  --section:clamp(56px,7vw,96px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
html,body{overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--display);color:var(--ink-strong);font-weight:500;letter-spacing:-.025em;line-height:1.12;margin:0;text-wrap:balance}
h1{font-size:clamp(2.35rem,1.5rem + 3.2vw,4rem);line-height:1.04;letter-spacing:-.035em}
h2{font-size:clamp(1.9rem,1.3rem + 2vw,2.75rem)}
h3{font-size:1.35rem;line-height:1.25}
p{margin:0 0 14px}
a{color:var(--gold);text-decoration:underline;text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
:is(a,button,input,[tabindex]):focus-visible{outline:2px solid var(--gold-2);outline-offset:3px}
.wrap{width:min(100% - 48px,var(--wrap));margin:0 auto}
.narrow{max-width:760px}
.kicker{display:block;color:var(--gold);font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px;line-height:1.6}
.skip{position:absolute;left:-999px;top:8px;background:var(--paper);color:var(--navy);padding:8px 12px;z-index:50}
.skip:focus{left:8px}

/* top bar */
.top{position:absolute;inset:0 0 auto;z-index:30;background:rgba(7,16,23,.82);border-bottom:1px solid rgba(228,197,128,.16);backdrop-filter:blur(8px)}
.top .in{width:min(100% - 48px,var(--wrap));margin:0 auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--cream-on-night);text-decoration:none;min-height:48px}
.brand-wordmark{width:158px;height:34px;overflow:visible;flex:none}
.brand-surname{fill:#c0a062}
.brand-divider{width:1px;height:26px;background:rgba(245,239,227,.25);flex:none}
.pplx-mark{width:28px;height:30px;flex:none}
.top-cta{color:var(--gold-light);font-size:.85rem;font-weight:500;text-decoration:none;white-space:nowrap;padding:10px 0}
.top-cta:hover{text-decoration:underline}
@media (max-width:560px){.top-cta{font-size:.78rem}}

/* hero */
.hero{position:relative;isolation:isolate;background:var(--night);color:var(--cream-on-night);padding:116px 0 72px}
.scene{position:absolute;inset:0;z-index:0;overflow:hidden}
.scene img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center;opacity:.75}
.scene img.data{opacity:.9;mix-blend-mode:screen}
.scene .scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,9,14,.97) 0%,rgba(3,9,14,.9) 45%,rgba(3,9,14,.7) 75%,rgba(3,9,14,.45) 100%),radial-gradient(120% 90% at 25% 40%,rgba(3,9,14,.6),transparent 70%)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:clamp(32px,5vw,72px);align-items:center}
.hero h1{color:#fbf6ea}
.hero h1 em{font-style:italic;color:var(--gold-light);font-weight:500}
.hero .kicker{color:var(--gold-light)}
.lede{font-size:1.25rem;line-height:1.55;color:rgba(245,239,227,.92);max-width:52ch;margin:22px 0 0}
.lede em{font-style:italic;color:var(--gold-light)}
.lede.sub2{font-size:1.02rem;color:rgba(245,239,227,.78);margin-top:16px;max-width:56ch}
.when{display:flex;flex-wrap:wrap;gap:10px 22px;margin:26px 0 0;padding:0;list-style:none;font-size:.95rem;color:rgba(245,239,227,.9)}
.when li{display:flex;align-items:center;gap:9px}
.when svg{width:17px;height:17px;color:var(--gold-light);flex:none}
.sig{margin-top:28px;font-family:var(--display);font-style:italic;font-size:1.05rem;color:rgba(245,239,227,.75)}

/* form card */
.card{background:var(--paper);color:var(--ink);border:1px solid rgba(201,164,92,.35);border-radius:4px;padding:clamp(24px,3.5vw,36px);box-shadow:0 30px 80px -30px rgba(0,0,0,.6)}
.card h2{font-size:1.45rem;margin-bottom:6px}
.card .sub{font-size:.95rem;color:var(--ink-soft);margin-bottom:20px}
.field{display:block;margin-bottom:14px}
.field span{display:block;font-size:.85rem;font-weight:500;color:var(--navy);margin-bottom:6px}
.field input{width:100%;min-height:52px;border:1px solid #b7ad97;border-radius:var(--r);padding:12px 14px;background:#fff;color:var(--ink-strong);font:inherit;font-size:1rem}
.field input:focus{border-color:var(--gold)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:56px;padding:14px 22px;border:1px solid #a8863a;border-radius:var(--r);background:var(--gold-button);color:#1a1405;font-weight:600;font-size:1rem;letter-spacing:.01em;cursor:pointer;text-decoration:none;font-family:var(--body);transition:filter .15s ease,transform .15s ease}
.btn:hover{filter:brightness(1.05)}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.7;cursor:wait}
.btn.auto{width:auto;min-width:260px}
.fine{font-size:.8rem;color:var(--ink-soft);margin:12px 0 0;line-height:1.5}
.msg{display:none;margin-top:12px;padding:10px 12px;border-radius:var(--r);font-size:.9rem;line-height:1.45}
.msg.show{display:block}
.msg.err{background:#fbeeea;color:#7a2e12;border:1px solid #e9c6ba}

/* sections */
section{padding:var(--section) 0}
.alt{background:var(--bg2)}
.intro{font-size:1.1rem;max-width:60ch;color:var(--ink);margin-top:14px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:40px}
.demo{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:28px 28px 24px;position:relative}
.demo .n{font-family:var(--display);font-style:italic;color:var(--gold-2);font-size:1.6rem;line-height:1;margin-bottom:14px}
.demo h3{margin-bottom:10px}
.demo p{margin:0;color:var(--ink);font-size:.98rem}
.after{margin-top:34px;padding:22px 26px;border-left:3px solid var(--gold-2);background:var(--paper);font-size:1.02rem;max-width:72ch}
.after p{margin:0}

.fit{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(28px,5vw,64px);margin-top:36px}
.fit h3{margin-bottom:14px}
.fit ul{margin:0;padding:0;list-style:none}
.fit li{position:relative;padding-left:26px;margin-bottom:12px;font-size:1rem}
.fit li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:2px;background:var(--gold-2)}
.fit .not li::before{background:var(--line)}

.bio{display:grid;grid-template-columns:minmax(220px,300px) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:center}
.bio img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;border-radius:4px;filter:saturate(.92)}
.bio h2{margin-bottom:16px}
.bio p{font-size:1.05rem}
.stats{display:flex;flex-wrap:wrap;gap:12px 36px;margin:22px 0 0;padding:0;list-style:none}
.stats b{display:block;font-family:var(--display);font-size:1.9rem;font-weight:500;color:var(--navy);line-height:1.1}
.stats span{font-size:.85rem;color:var(--ink-soft);letter-spacing:.02em}

.close{background:var(--night);color:var(--cream-on-night);text-align:center;position:relative;isolation:isolate;overflow:hidden}
.close::after{content:"";position:absolute;inset:0;z-index:0;background:radial-gradient(70% 90% at 50% 100%,rgba(201,164,92,.18),transparent 70%)}
.close .wrap{position:relative;z-index:1}
.close h2{color:#fbf6ea;max-width:20ch;margin:0 auto 16px}
.close p{color:rgba(245,239,227,.8);max-width:52ch;margin:0 auto 28px;font-size:1.05rem}
.close .when{justify-content:center;margin:0 0 30px}

footer{background:var(--night);color:rgba(245,239,227,.6);font-size:.8rem;padding:28px 0 40px;border-top:1px solid rgba(228,197,128,.14)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center}
footer a{color:rgba(245,239,227,.8)}
footer nav{display:flex;gap:22px;flex-wrap:wrap}
footer .legal{width:100%;color:rgba(245,239,227,.45);font-size:.74rem;margin-top:6px}

/* thank-you */
.ty{min-height:100svh;display:flex;flex-direction:column}
.ty main{flex:1;display:flex;align-items:center;padding:120px 0 72px}
.ty .panel{max-width:720px}
.ty .steps{margin:30px 0 0;padding:0;list-style:none;counter-reset:s}
.ty .steps li{counter-increment:s;position:relative;padding:18px 0 18px 54px;border-top:1px solid var(--line)}
.ty .steps li:last-child{border-bottom:1px solid var(--line)}
.ty .steps li::before{content:counter(s);position:absolute;left:0;top:16px;width:36px;height:36px;border:1px solid var(--gold-2);border-radius:50%;display:grid;place-items:center;font-family:var(--display);font-style:italic;color:var(--gold);font-size:1.1rem}
.ty .steps h3{font-size:1.15rem;margin-bottom:4px}
.ty .steps p{margin:0;font-size:.98rem}
.calbtns{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.calbtns a{display:inline-flex;align-items:center;min-height:44px;padding:8px 16px;border:1px solid var(--gold);border-radius:var(--r);color:var(--navy);text-decoration:none;font-size:.9rem;font-weight:500;background:var(--paper)}
.calbtns a:hover{background:var(--gold-soft)}
.ty .note{margin-top:34px;padding:22px 26px;border-left:3px solid var(--gold-2);background:var(--paper)}
.ty .note p:last-child{margin:0}

@media (max-width:880px){
  .hero{padding:110px 0 56px;min-height:0}
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .grid,.fit{grid-template-columns:1fr}
  .bio{grid-template-columns:1fr}
  .bio img{max-width:300px}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap,.top .in{width:min(100% - 36px,var(--wrap))}
  .hero{padding:100px 0 48px}
  .lede{font-size:1.02rem}
  .when{gap:8px 16px;font-size:.9rem}
  .demo{padding:22px 20px 20px}
  .close h2{max-width:none}
}

/* ===== motion + interaction ===== */
.top{position:fixed;transition:background .25s ease,border-color .25s ease}
.top.solid{background:rgba(7,16,23,.96);border-bottom-color:rgba(228,197,128,.22)}
.scene img{transition:transform .2s linear;will-change:transform;transform:scale(1.04)}
.js .hero-in{opacity:0;transform:translateY(16px)}
.js body.ready .hero-in,.ready .hero-in{opacity:1;transform:none;transition:opacity .7s ease var(--d,0s),transform .7s cubic-bezier(.2,.7,.2,1) var(--d,0s)}
.js .reveal,.js .reveal-item{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.js .reveal.in,.js .reveal-item.in{opacity:1;transform:none}
.js .reveal-item:nth-child(2){transition-delay:.08s}.js .reveal-item:nth-child(3){transition-delay:.16s}.js .reveal-item:nth-child(4){transition-delay:.24s}
.demo{transition:border-color .2s ease,transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s ease}
.demo:hover{border-color:var(--gold-2);transform:translateY(-3px);box-shadow:0 18px 40px -24px rgba(15,23,41,.35)}
.demo .n{transition:color .2s ease}.demo:hover .n{color:var(--gold)}
.field input{transition:border-color .15s ease,box-shadow .15s ease}
.field input:focus{box-shadow:0 0 0 3px rgba(201,164,92,.22)}
.field input.bad{border-color:#b4472a;box-shadow:0 0 0 3px rgba(180,71,42,.15)}
.card{transition:box-shadow .3s ease}
.card.pulse{box-shadow:0 0 0 4px rgba(228,197,128,.55),0 30px 80px -30px rgba(0,0,0,.6)}
.btn{position:relative;overflow:hidden}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.28) 50%,transparent 70%);transform:translateX(-120%);transition:transform .6s ease}
.btn:hover::after{transform:translateX(120%)}
.calbtns a{transition:background .15s ease,border-color .15s ease,transform .15s ease}
.calbtns a:hover{transform:translateY(-1px)}
.ty .steps li{opacity:0;transform:translateY(10px);animation:stepin .5s ease forwards}
.ty .steps li:nth-child(1){animation-delay:.15s}.ty .steps li:nth-child(2){animation-delay:.3s}.ty .steps li:nth-child(3){animation-delay:.45s}
.ty .note{opacity:0;animation:stepin .5s ease .6s forwards}
@keyframes stepin{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  .js .hero-in,.js .reveal,.js .reveal-item,.ty .steps li,.ty .note{opacity:1;transform:none;transition:none;animation:none}
  .scene img{transition:none;transform:none}
  .demo,.btn::after,.calbtns a{transition:none}
}