/* Spark-AI — "Ignition" palette: dark ground, electric amber spark, violet for AI touches */
:root{
  --midnight:#07090F;   /* page background */
  --graphite:#0E121B;   /* alternate sections */
  --slate:#151B27;      /* cards and panels */
  --line:rgba(255,255,255,.08);
  --mist:#E9EDF5;       /* main text */
  --muted:#8E97AB;      /* secondary text */
  --spark:#FFB800;      /* primary accent */
  --ember:#FF6A1F;      /* gradient partner */
  --volt:#7C5CFF;       /* AI accent */
  --ok:#2FD69B;
  --danger:#FF5C7A;
  --grad:linear-gradient(120deg,var(--spark),var(--ember));
  --radius:18px;
  --wrap:1180px;
  --display:"Space Grotesk",Inter,system-ui,sans-serif;
  --body:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--midnight);color:var(--mist);font:16px/1.65 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--display);line-height:1.1;letter-spacing:-.02em;text-wrap:balance}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--spark);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
.eyebrow{font:600 .78rem/1.3 var(--body);letter-spacing:.16em;text-transform:uppercase;color:var(--spark);display:inline-flex;gap:10px;align-items:center}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px;flex:none}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--spark);color:#140B00;padding:8px 14px;border-radius:8px}
.skip:focus{left:16px}
section{padding:110px 0;position:relative}
.section-head{max-width:720px;margin-bottom:56px}
.section-head h2{font-size:clamp(2rem,4vw,3rem);margin:18px 0 16px}
.section-head p{color:var(--muted);font-size:1.1rem}
.muted{color:var(--muted)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.btn-primary{background:var(--grad);color:#120A00;box-shadow:0 10px 40px -10px rgba(255,140,0,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 50px -10px rgba(255,140,0,.75)}
.btn-primary[disabled]{opacity:.6;cursor:wait;transform:none}
.btn-ghost{border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:rgba(255,184,0,.5);background:rgba(255,184,0,.06)}

/* nav */
.site-nav{position:fixed;inset:0 0 auto 0;z-index:50;padding-top:env(safe-area-inset-top,0px);transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.site-nav.scrolled,.site-nav.solid{background:rgba(7,9,15,.82);backdrop-filter:blur(14px);border-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font:700 1.35rem var(--display);letter-spacing:-.03em}
.logo .ai{color:var(--spark)}
.nav-links{display:flex;gap:30px;font-size:.95rem;color:var(--muted)}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--mist)}
.nav-cta{padding:10px 18px;font-size:.9rem}
@media(max-width:900px){.nav-links{display:none}}

/* hero */
.hero{padding:170px 0 120px;overflow:hidden;position:relative}
#sparks{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:200px;background:linear-gradient(transparent,var(--midnight));z-index:1}
.glow{position:absolute;border-radius:50%;filter:blur(110px);z-index:0;pointer-events:none}
.glow.a{width:520px;height:520px;background:var(--ember);top:-120px;right:-80px;opacity:.22}
.glow.b{width:460px;height:460px;background:var(--volt);bottom:-160px;left:-120px;opacity:.25}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(2.6rem,7vw,5.6rem);max-width:950px;margin:24px 0}
.hero p.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--muted);max-width:640px;margin-bottom:38px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{margin-top:64px;display:flex;flex-wrap:wrap;gap:12px 28px;color:var(--muted);font-size:.9rem}
.hero-meta span{display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);display:inline-block;flex:none}

/* page header for inner pages */
.page-head{padding:150px 0 60px;border-bottom:1px solid var(--line);background:radial-gradient(600px 300px at 85% 0,rgba(255,106,31,.14),transparent),radial-gradient(500px 300px at 0 100%,rgba(124,92,255,.14),transparent)}
.page-head h1{font-size:clamp(2.2rem,5vw,3.8rem);margin:18px 0 14px;max-width:900px}
.page-head p{color:var(--muted);font-size:1.15rem;max-width:680px}

/* credentials strip */
.creds{padding:34px 0;border-block:1px solid var(--line);background:var(--graphite)}
.creds .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:18px 40px;justify-content:space-between}
.creds small{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;font-size:.72rem;font-weight:600}
.cred{display:flex;align-items:center;gap:12px;font-weight:500}
.cred i{font-style:normal;font-size:.7rem;padding:4px 9px;border-radius:999px;border:1px solid rgba(255,184,0,.35);color:var(--spark);white-space:nowrap}

/* cards and grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--slate);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:border-color .25s,transform .25s;min-width:0}
a.card:hover,.card.hover:hover{border-color:rgba(255,184,0,.35);transform:translateY(-3px)}
.card h3{font-size:1.3rem;margin:18px 0 10px}
.card p{color:var(--muted)}
.icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(255,184,0,.1);border:1px solid rgba(255,184,0,.25)}
.icon svg{width:22px;height:22px;stroke:var(--spark)}
@media(max-width:980px){.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid-3{grid-template-columns:1fr}}
.alt{background:var(--graphite)}

/* approach */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{padding:30px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.03),transparent)}
.step::before{counter-increment:s;content:"0" counter(s);font:700 3rem var(--display);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.step h3{font-size:1.25rem;margin:10px 0}
.step p{color:var(--muted);font-size:.96rem}
@media(max-width:980px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.steps{grid-template-columns:1fr}}

/* assessment */
.assess{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
.ticks{list-style:none;margin-top:28px;display:grid;gap:14px}
.ticks li{display:flex;gap:12px;color:var(--muted)}
.ticks li::before{content:"✦";color:var(--spark)}
.panel{background:var(--slate);border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:0 30px 80px -40px rgba(124,92,255,.45);position:relative;overflow:hidden;min-width:0}
.panel::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad)}
.progress{height:6px;background:rgba(255,255,255,.06);border-radius:6px;overflow:hidden;margin-bottom:26px}
.progress b{display:block;height:100%;width:0;background:var(--grad);transition:width .4s}
.q-count{font-size:.8rem;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.q-title{font-size:1.45rem;margin:10px 0 22px}
.opts{display:grid;gap:10px}
.opt{text-align:left;padding:15px 18px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.02);cursor:pointer;transition:.2s}
.opt:hover{border-color:rgba(255,184,0,.55);background:rgba(255,184,0,.06)}
.result-score{display:flex;align-items:center;gap:24px;margin-bottom:22px}
.ring{--p:0;width:118px;height:118px;border-radius:50%;flex:none;display:grid;place-items:center;background:conic-gradient(var(--spark) calc(var(--p)*1%),rgba(255,255,255,.07) 0)}
.ring span{width:94px;height:94px;border-radius:50%;background:var(--slate);display:grid;place-items:center;font:700 1.8rem var(--display);font-variant-numeric:tabular-nums}
.tier{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--spark)}
.recs{display:grid;gap:12px;margin:18px 0 24px}
.rec{padding:14px 16px;border-radius:12px;background:rgba(124,92,255,.08);border:1px solid rgba(124,92,255,.25);font-size:.95rem}
.rec strong{display:block;font-family:var(--display);margin-bottom:2px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form-grid .full{grid-column:1/-1}
input,select,textarea{width:100%;padding:13px 15px;border-radius:12px;background:var(--midnight);border:1px solid var(--line);outline:none;transition:border-color .2s}
input:focus,select:focus,textarea:focus{border-color:var(--spark)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.85rem;color:var(--muted)}
.check input{width:auto;margin-top:4px}
.note{font-size:.82rem;color:var(--muted);margin-top:10px}
.note a,.prose a,.link{color:var(--spark);text-decoration:underline;text-underline-offset:3px}
.hp{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}
.status{font-size:.9rem;margin-top:10px;min-height:1.4em}
.status.ok{color:var(--ok)}.status.err{color:var(--danger)}
@media(max-width:940px){.assess{grid-template-columns:1fr}}
@media(max-width:520px){.form-grid{grid-template-columns:1fr}.panel{padding:24px}}

/* AI report */
.report{display:grid;gap:22px}
.report h3{font-size:1.4rem}
.report h4{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--volt);margin-bottom:8px;font-family:var(--body)}
.report ul{padding-left:20px;display:grid;gap:6px;color:var(--muted)}
.report .prio{padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.02)}
.report .prio b{font-family:var(--display);display:block}
.report .road{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.report .road div{padding:14px;border-radius:12px;background:rgba(255,184,0,.06);border:1px solid rgba(255,184,0,.2);font-size:.92rem;min-width:0}
.report .road b{display:block;color:var(--spark);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
@media(max-width:640px){.report .road{grid-template-columns:1fr}}
.thinking{display:flex;align-items:center;gap:12px;color:var(--muted)}
.spinner{width:20px;height:20px;border-radius:50%;border:2px solid rgba(255,184,0,.25);border-top-color:var(--spark);animation:spin .8s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}

/* agents */
.agent .tag{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--volt);font-weight:600}
.agent .try{margin-top:16px;display:inline-flex;font-size:.9rem;color:var(--spark);font-weight:600;cursor:pointer;background:none;border:0;padding:0}

/* knowledge */
.search{display:flex;gap:10px;padding:8px;border-radius:999px;background:var(--slate);border:1px solid var(--line);max-width:720px;margin-bottom:22px}
.search input{border:0;background:transparent;padding:12px 16px}
.search .btn{padding:12px 20px;flex:none}
.ai-answer{max-width:720px;margin-bottom:34px;padding:20px 22px;border-radius:16px;border:1px solid rgba(124,92,255,.3);background:rgba(124,92,255,.07)}
.ai-answer h4{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--volt);margin-bottom:8px;font-family:var(--body)}
.ai-answer .sources{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.ai-answer .sources a{font-size:.82rem;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,184,0,.35);color:var(--spark)}
.article-card .meta{font-size:.78rem;color:var(--spark);letter-spacing:.08em;text-transform:uppercase}
.article-card h3{font-size:1.15rem;margin:12px 0 8px}
@media(max-width:640px){.search{border-radius:18px;flex-direction:column}}

/* article pages */
.prose{max-width:68ch;font-size:1.06rem}
.prose>*+*{margin-top:1.1em}
.prose h2{font-size:1.7rem;margin-top:1.8em}
.prose h3{font-size:1.25rem;margin-top:1.4em}
.prose p,.prose li{color:#C9D0DE}
.prose ul,.prose ol{padding-left:1.3em;display:grid;gap:.5em}
.prose strong{color:var(--mist)}
.prose .callout{padding:18px 20px;border-radius:14px;background:rgba(255,184,0,.07);border:1px solid rgba(255,184,0,.25)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:70px 0 110px}
.article-aside{position:sticky;top:110px;align-self:start;display:grid;gap:16px}
.article-aside .card{padding:24px}
.article-aside h3{font-size:1.1rem;margin:0 0 8px}
@media(max-width:940px){.article-layout{grid-template-columns:1fr}.article-aside{position:static}}
.byline{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:.9rem;margin-top:18px}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:48px}
.contact form{display:grid;gap:12px}
@media(max-width:900px){.contact{grid-template-columns:1fr}}

footer.site-foot{padding:56px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
.foot-grid{display:flex;flex-wrap:wrap;gap:24px 40px;justify-content:space-between;align-items:flex-start}
.foot-links{display:flex;flex-wrap:wrap;gap:12px 24px}
.foot-links a:hover{color:var(--mist)}

/* chat widget */
.chat-fab{position:fixed;right:calc(22px + env(safe-area-inset-right,0px));bottom:calc(22px + env(safe-area-inset-bottom,0px));z-index:60;width:64px;height:64px;border-radius:50%;border:0;cursor:pointer;background:var(--grad);display:grid;place-items:center;box-shadow:0 14px 40px -8px rgba(255,120,0,.65);transition:transform .2s}
.chat-fab:hover{transform:scale(1.06)}
.chat-fab::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(255,184,0,.5);animation:pulse 2.4s infinite;pointer-events:none}
@keyframes pulse{0%{transform:scale(.9);opacity:1}100%{transform:scale(1.35);opacity:0}}
.chat{position:fixed;right:calc(22px + env(safe-area-inset-right,0px));bottom:calc(100px + env(safe-area-inset-bottom,0px));z-index:60;width:min(400px,calc(100vw - 32px));height:min(600px,calc(100vh - 140px));background:var(--slate);border:1px solid var(--line);border-radius:22px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 30px 90px -20px rgba(0,0,0,.8);opacity:0;pointer-events:none;transform:translateY(16px) scale(.98);transition:.25s;visibility:hidden}
.chat.open{opacity:1;pointer-events:auto;transform:none;visibility:visible}
.chat-head{padding:16px 18px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);background:linear-gradient(120deg,rgba(255,184,0,.12),rgba(124,92,255,.12))}
.chat-head b{font-family:var(--display);display:block}
.chat-head small{color:var(--muted);display:flex;align-items:center;gap:6px}
.chat-head .x{margin-left:auto;background:none;border:0;color:var(--muted);font-size:1.5rem;cursor:pointer;line-height:1}
.msgs{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:88%;padding:11px 14px;border-radius:16px;font-size:.93rem;line-height:1.55;animation:in .25s;overflow-wrap:anywhere}
.msg p+p,.msg p+ul,.msg ul+p{margin-top:.5em}
.msg ul{padding-left:1.2em}
.msg a{color:var(--spark);text-decoration:underline}
@keyframes in{from{opacity:0;transform:translateY(6px)}}
.msg.bot{background:rgba(255,255,255,.05);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.me{align-self:flex-end;background:var(--grad);color:#140B00;border-bottom-right-radius:4px;font-weight:500}
.msg.sys{align-self:center;background:none;color:var(--muted);font-size:.78rem;text-align:center;padding:4px}
.typing{display:flex;gap:4px;padding:14px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:b 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes b{50%{transform:translateY(-4px);opacity:.4}}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 18px 12px}
.chip{font-size:.82rem;padding:7px 12px;border-radius:999px;border:1px solid rgba(255,184,0,.35);background:rgba(255,184,0,.06);color:var(--spark);cursor:pointer}
.chat-in{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-in input{border-radius:999px}
.chat-in button{flex:none;width:46px;border-radius:50%;border:0;background:var(--grad);cursor:pointer;color:#140B00;font-weight:700}
.chat-foot{font-size:.72rem;color:var(--muted);text-align:center;padding:0 12px 10px}
.chat-foot a{text-decoration:underline}

.reveal.in{animation:rise .7s ease-out}
@keyframes rise{from{transform:translateY(18px)}}

@media(max-width:520px){
  .wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
  .nav-cta{display:none}
  .chat{left:calc(16px + env(safe-area-inset-left,0px));right:calc(16px + env(safe-area-inset-right,0px));width:auto;bottom:calc(96px + env(safe-area-inset-bottom,0px))}
  .chat-fab{right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px))}
  .hero-ctas .btn{width:100%;justify-content:center}
  section{padding:80px 0}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}