/* =========================================================
   JB AI Studio — main stylesheet
   Colours: deep midnight + electric violet + warm amber
   ========================================================= */

@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-latin-700-normal.woff2") format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/inter-latin-600-normal.woff2") format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("../fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}

:root{
  --bg:#08061a;
  --bg-2:#0e0b26;
  --surface:#14103a;
  --surface-2:#1b1650;
  --line:rgba(167,139,250,.16);
  --line-strong:rgba(167,139,250,.32);
  --text:#f4f1ff;
  --muted:#b3acd9;
  --dim:#8a83b8;
  --violet:#8b5cf6;
  --violet-2:#a78bfa;
  --amber:#ffb347;
  --amber-2:#ff8a3d;
  --good:#4ade80;
  --bad:#fb7185;
  --grad:linear-gradient(110deg,var(--violet-2) 0%,var(--amber) 100%);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px -20px rgba(139,92,246,.45);
  --font-display:"Space Grotesk",system-ui,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:17px;line-height:1.65;overflow-x:hidden}
img,svg,canvas{max-width:100%;display:block}
a{color:var(--violet-2);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--amber)}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.08;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.6rem,7vw,5.6rem);font-weight:700}
h2{font-size:clamp(1.9rem,4.2vw,3.2rem);font-weight:700}
h3{font-size:1.3rem;font-weight:700}
p{margin:0 0 1em}
::selection{background:var(--violet);color:#fff}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:6px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:#1a1033;padding:10px 16px;border-radius:8px;z-index:200;font-weight:600}
.skip:focus{left:12px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Announcement bar ---------- */
.announce{background:linear-gradient(90deg,rgba(139,92,246,.18),rgba(255,179,71,.14));border-bottom:1px solid var(--line);font-size:.88rem;text-align:center;padding:8px 16px;color:var(--muted)}
.announce a{color:var(--text);font-weight:600;text-decoration:none}
.announce a:hover{color:var(--amber)}
.pill{display:inline-block;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;padding:2px 9px;border-radius:99px;background:var(--amber);color:#1a1033;font-weight:500;margin-right:8px;vertical-align:1px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(8,6,26,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-family:var(--font-display);font-weight:700;font-size:1.15rem}
.brand:hover{color:var(--text)}
.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--grad);color:#14103a;font-size:.92rem;letter-spacing:-.04em;box-shadow:0 0 0 1px rgba(255,255,255,.12) inset}
.brand small{display:block;font-family:var(--font-mono);font-size:.62rem;color:var(--dim);letter-spacing:.12em;font-weight:500;margin-top:2px}
.menu{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0}
.menu a{color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:600}
.menu a:hover,.menu a[aria-current="page"]{color:var(--text)}
.menu .free{display:inline-flex;align-items:center;gap:6px}
.menu .free::after{content:"FREE";font-family:var(--font-mono);font-size:.6rem;background:var(--amber);color:#1a1033;border-radius:99px;padding:1px 6px}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;background:none;border:1px solid var(--line-strong);color:var(--text);width:44px;height:44px;border-radius:12px;cursor:pointer}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:currentColor;margin:auto;position:relative;transition:.25s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0}
.burger span::before{top:-6px}.burger span::after{top:6px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:99px;font-weight:600;font-size:.98rem;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s;font-family:var(--font-body);line-height:1.2}
.btn-primary{background:var(--grad);color:#14103a;box-shadow:var(--shadow)}
.btn-primary:hover{color:#14103a;transform:translateY(-2px);box-shadow:0 26px 60px -18px rgba(255,179,71,.55)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:var(--text);border-color:var(--violet-2);background:rgba(139,92,246,.12)}
.btn-sm{padding:10px 18px;font-size:.9rem}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 90px;border-bottom:1px solid var(--line)}
#net{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.85}
.hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(var(--line) 1px,transparent 1px) 0 0/64px 64px,
  linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/64px 64px;
  mask-image:radial-gradient(ellipse at 30% 40%,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 30% 40%,#000 0%,transparent 70%);opacity:.5;z-index:0}
.hero::after{content:"";position:absolute;width:620px;height:620px;right:-160px;top:-120px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.35),transparent 65%);filter:blur(20px);z-index:0;animation:float 12s ease-in-out infinite}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--violet-2);margin-bottom:22px}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 0 rgba(255,179,71,.7);animation:ping 2s infinite}
.hero h1 .thin{font-weight:500;color:var(--muted)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:1.15rem;color:var(--muted);max-width:560px;margin:24px 0 32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-note{margin-top:22px;font-size:.88rem;color:var(--dim);display:flex;gap:18px;flex-wrap:wrap}
.hero-note span::before{content:"✓ ";color:var(--good)}

.reveal-line{display:block;overflow:hidden}
.reveal-line>span{display:inline-block;transform:translateY(105%);animation:rise .9s cubic-bezier(.2,.8,.2,1) forwards}
.reveal-line:nth-child(2)>span{animation-delay:.12s}
.reveal-line:nth-child(3)>span{animation-delay:.24s}

/* Feed card */
.feed{background:linear-gradient(180deg,rgba(27,22,80,.88),rgba(14,11,38,.92));border:1px solid var(--line-strong);border-radius:22px;padding:22px;box-shadow:var(--shadow);position:relative}
.feed-head{display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:space-between;align-items:center;margin-bottom:16px;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;color:var(--dim);text-transform:uppercase}
.live{display:inline-flex;align-items:center;gap:6px;color:var(--good)}
.live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--good);animation:blink 1.4s infinite}
.feed ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;min-height:268px}
.feed li{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:.92rem;animation:slideIn .55s cubic-bezier(.2,.8,.2,1) both}
.feed time{font-family:var(--font-mono);font-size:.74rem;color:var(--amber);white-space:nowrap;padding-top:2px;min-width:62px}
.feed .ic{width:28px;height:28px;flex:none;border-radius:8px;display:grid;place-items:center;background:rgba(139,92,246,.22);font-size:.85rem}
.feed-foot{margin-top:14px;font-size:.74rem;color:var(--dim);font-family:var(--font-mono);letter-spacing:.06em}

/* ---------- Marquee ---------- */
.marquee{border-bottom:1px solid var(--line);overflow:hidden;padding:18px 0;background:var(--bg-2)}
.marquee-track{display:flex;gap:44px;width:max-content;animation:scroll 38s linear infinite;font-family:var(--font-display);font-size:1.15rem;color:var(--muted);white-space:nowrap}
.marquee-track span::after{content:"✦";color:var(--amber);margin-left:44px}

/* ---------- Sections ---------- */
section{padding:96px 0;position:relative}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin-bottom:14px;display:block}
.sec-head p{color:var(--muted);font-size:1.08rem}
.alt{background:linear-gradient(180deg,var(--bg-2),var(--bg))}

/* Cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:linear-gradient(180deg,rgba(27,22,80,.55),rgba(20,16,58,.35));border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(139,92,246,.18),transparent 45%);opacity:0;transition:opacity .3s;pointer-events:none}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.card:hover::before{opacity:1}
.card p{color:var(--muted);margin-bottom:0}
.card .num{font-family:var(--font-mono);color:var(--amber);font-size:.8rem;letter-spacing:.1em;margin-bottom:18px;display:block}
.icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:rgba(139,92,246,.18);border:1px solid var(--line-strong);margin-bottom:20px;color:var(--violet-2)}
.icon svg{width:24px;height:24px}
.card .link{display:inline-flex;margin-top:18px;font-weight:600;text-decoration:none;color:var(--text)}
.card .link:hover{color:var(--amber)}

/* Before / after */
.ba{display:grid;gap:14px}
.ba .row{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center}
.ba .side{padding:18px 20px;border-radius:14px;border:1px solid var(--line);font-size:.95rem}
.ba .before{background:rgba(251,113,133,.06);color:var(--muted)}
.ba .after{background:rgba(74,222,128,.06)}
.ba .tag{display:block;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;margin-bottom:6px}
.ba .before .tag{color:var(--bad)}
.ba .after .tag{color:var(--good)}
.ba .to{color:var(--amber);font-size:1.3rem}

/* Steps */
.steps{counter-reset:step;position:relative}
.steps .card{padding-top:34px}
.steps .card::after{counter-increment:step;content:"0" counter(step);position:absolute;right:20px;top:10px;font-family:var(--font-display);font-size:4.2rem;font-weight:700;color:rgba(167,139,250,.08);line-height:1}

/* Demo */
.demo{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.browser{border-radius:18px;overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow);background:#fff;color:#1b1b2f}
.browser-bar{display:flex;align-items:center;gap:8px;background:#ece9f8;padding:10px 14px}
.browser-bar i{width:10px;height:10px;border-radius:50%;background:#d6d1ec;display:block}
.browser-bar .url{flex:1;background:#fff;border-radius:8px;font-size:.72rem;padding:4px 10px;color:#6b6790;font-family:var(--font-mono);margin-left:8px}
.mock{padding:22px;background:linear-gradient(160deg,#0c3d5c,#0a5a7a);color:#fff;position:relative;min-height:300px}
.mock .m-nav{display:flex;justify-content:space-between;font-size:.72rem;opacity:.85;margin-bottom:26px}
.mock .m-logo{font-family:var(--font-display);font-weight:700;font-size:.95rem;opacity:1}
.mock h4{font-size:1.5rem;color:#fff;max-width:280px;margin-bottom:10px}
.mock p{font-size:.82rem;opacity:.85;max-width:260px}
.mock .m-btn{display:inline-block;background:#ffd166;color:#0c3d5c;font-weight:700;font-size:.78rem;padding:8px 14px;border-radius:8px;margin-top:6px}
.mock .m-stars{font-size:.74rem;margin-top:14px;opacity:.9}
.mock .m-chat{position:absolute;right:16px;bottom:16px;width:210px;background:#fff;color:#1b1b2f;border-radius:14px;padding:12px;font-size:.74rem;box-shadow:0 14px 34px rgba(0,0,0,.3)}
.mock .m-chat b{display:block;font-size:.72rem;color:#0a5a7a;margin-bottom:6px}
.mock .bubble{background:#eef6fa;border-radius:10px;padding:7px 9px;margin-bottom:6px}
.mock .bubble.me{background:#0a5a7a;color:#fff;margin-left:24px}
.demo-label{display:inline-block;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;padding:4px 10px;border-radius:99px;border:1px solid var(--amber);color:var(--amber);margin-bottom:16px}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}
.facts div{border:1px solid var(--line);border-radius:12px;padding:14px;background:rgba(255,255,255,.02)}
.facts dt{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;color:var(--dim);text-transform:uppercase}
.facts dd{margin:4px 0 0;font-weight:600}

/* Pricing */
.price-card{display:flex;flex-direction:column}
.price-card.featured{border-color:var(--violet-2);background:linear-gradient(180deg,rgba(139,92,246,.22),rgba(20,16,58,.5))}
.price-card{padding-top:58px}
.badge{position:absolute;top:18px;left:28px;font-family:var(--font-mono);font-size:.64rem;letter-spacing:.12em;background:var(--amber);color:#1a1033;padding:3px 9px;border-radius:99px}
.price{font-family:var(--font-display);font-size:2.6rem;font-weight:700;margin:10px 0 2px;line-height:1}
.price small{font-size:.95rem;color:var(--muted);font-weight:500}
.price-from{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;color:var(--dim);text-transform:uppercase}
.ticks{list-style:none;padding:0;margin:22px 0 26px;display:grid;gap:10px;flex:1}
.ticks li{padding-left:28px;position:relative;color:var(--muted);font-size:.95rem}
.ticks li::before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:rgba(74,222,128,.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234ade80' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.fine{font-size:.86rem;color:var(--dim);margin-top:22px;text-align:center}

/* Calculator / tools */
.tool{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line-strong);border-radius:22px;overflow:hidden;background:var(--surface)}
.tool-in{padding:34px}
.tool-out{padding:34px;background:linear-gradient(160deg,rgba(139,92,246,.25),rgba(255,138,61,.12));display:flex;flex-direction:column;justify-content:center}
.field{margin-bottom:22px}
.field label{display:flex;justify-content:space-between;font-weight:600;font-size:.95rem;margin-bottom:10px}
.field output{font-family:var(--font-mono);color:var(--amber)}
input[type=range]{width:100%;accent-color:var(--violet);height:6px;cursor:pointer}
.big{font-family:var(--font-display);font-size:clamp(2.6rem,6vw,4rem);font-weight:700;line-height:1}
.tool-out p{color:var(--muted)}
.tool-out .sub{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);margin-bottom:10px}

/* Quiz */
.quiz{border:1px solid var(--line-strong);border-radius:22px;background:var(--surface);padding:34px}
.quiz fieldset{border:0;padding:0;margin:0 0 18px}
.quiz legend{font-weight:600;margin-bottom:10px}
.opts{display:flex;gap:10px;flex-wrap:wrap}
.opts label{cursor:pointer}
.opts input{position:absolute;opacity:0}
.opts span{display:inline-block;padding:9px 18px;border-radius:99px;border:1px solid var(--line-strong);font-size:.92rem;transition:.2s}
.opts input:checked+span{background:var(--violet);border-color:var(--violet);color:#fff}
.opts input:focus-visible+span{outline:3px solid var(--amber);outline-offset:2px}
.score{margin-top:24px;padding:22px;border-radius:16px;background:rgba(139,92,246,.12);border:1px solid var(--line-strong);display:none}
.score.show{display:block;animation:slideIn .4s both}
.meter{height:10px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden;margin:12px 0}
.meter i{display:block;height:100%;width:0;background:var(--grad);border-radius:99px;transition:width .8s cubic-bezier(.2,.8,.2,1)}

/* Checklist */
.checks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;color:var(--muted)}
.checks li::before{content:"✓";flex:none;width:24px;height:24px;border-radius:50%;background:rgba(255,179,71,.16);color:var(--amber);display:grid;place-items:center;font-size:.8rem;font-weight:700;margin-top:2px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.messy{display:flex;flex-wrap:wrap;gap:10px;align-content:flex-start}
.messy span{padding:8px 14px;border-radius:10px;border:1px dashed var(--line-strong);color:var(--dim);font-size:.9rem;transform:rotate(var(--r,0deg))}

/* In short (GEO) */
.inshort{border-left:4px solid var(--amber);padding:6px 0 6px 26px;max-width:860px}
.inshort p{font-size:1.15rem;color:var(--text)}

/* FAQ */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq details{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.02);transition:border-color .2s}
.faq details[open]{border-color:var(--line-strong);background:rgba(139,92,246,.06)}
.faq summary{cursor:pointer;list-style:none;padding:20px 56px 20px 22px;font-weight:600;position:relative;font-size:1.02rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--amber);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .ans{padding:0 22px 20px;color:var(--muted)}

/* CTA + contact */
.cta-band{border:1px solid var(--line-strong);border-radius:28px;padding:56px;background:radial-gradient(circle at 15% 20%,rgba(139,92,246,.35),transparent 50%),radial-gradient(circle at 90% 90%,rgba(255,138,61,.22),transparent 50%),var(--surface);display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.form{display:grid;gap:14px}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{font-size:.88rem;font-weight:600;display:block;margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(8,6,26,.6);color:var(--text);font:inherit;font-size:.96rem}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--violet-2);box-shadow:0 0 0 3px rgba(139,92,246,.25)}
.form textarea{min-height:120px;resize:vertical}
.form .consent{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--muted);font-weight:400}
.form .consent input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--violet)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form-msg{font-size:.9rem;min-height:1.2em}
.form-msg.err{color:var(--bad)}
.form-msg.ok{color:var(--good)}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:64px 0 32px;background:var(--bg-2);font-size:.94rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;color:var(--dim);text-transform:uppercase;margin-bottom:16px;font-weight:500}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--amber)}
.site-footer p{color:var(--muted)}
.legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid var(--line);margin-top:48px;padding-top:24px;color:var(--dim);font-size:.86rem}
.legal a{color:var(--dim)}

/* ---------- Demo chat widget ---------- */
.chat-launch{position:fixed;right:20px;bottom:20px;z-index:150;display:flex;align-items:center;gap:10px;padding:12px 18px 12px 12px;border-radius:99px;border:1px solid var(--line-strong);background:rgba(20,16,58,.92);backdrop-filter:blur(10px);color:var(--text);font:600 .92rem var(--font-body);cursor:pointer;box-shadow:var(--shadow);transition:transform .2s}
.chat-launch:hover{transform:translateY(-2px)}
.chat-launch .dot{width:34px;height:34px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#14103a}
.chat-launch .dot svg{width:18px;height:18px}
.chat{position:fixed;right:20px;bottom:90px;z-index:160;width:min(370px,calc(100vw - 32px));max-height:min(560px,calc(100vh - 120px));display:none;flex-direction:column;border-radius:20px;border:1px solid var(--line-strong);background:var(--bg-2);box-shadow:0 30px 80px rgba(0,0,0,.55);overflow:hidden}
.chat.open{display:flex;animation:slideIn .3s both}
.chat-head{padding:16px 18px;background:linear-gradient(110deg,rgba(139,92,246,.35),rgba(255,138,61,.2));display:flex;justify-content:space-between;align-items:center}
.chat-head strong{display:block;font-family:var(--font-display)}
.chat-head small{color:var(--muted);font-size:.78rem}
.chat-close{background:none;border:0;color:var(--text);font-size:1.5rem;cursor:pointer;width:36px;height:36px;border-radius:10px}
.chat-close:hover{background:rgba(255,255,255,.08)}
.chat-body{padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;flex:1}
.msg{max-width:85%;padding:10px 13px;border-radius:14px;font-size:.9rem;line-height:1.5;animation:slideIn .3s both}
.msg.bot{background:var(--surface-2);border-top-left-radius:4px}
.msg.user{background:var(--violet);align-self:flex-end;border-top-right-radius:4px}
.msg a{color:var(--amber)}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px 12px}
.chips button{background:transparent;border:1px solid var(--line-strong);color:var(--text);border-radius:99px;padding:7px 12px;font:500 .8rem var(--font-body);cursor:pointer}
.chips button:hover{border-color:var(--amber);color:var(--amber)}
.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-form input{flex:1;padding:11px 13px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(8,6,26,.6);color:var(--text);font:inherit;font-size:.9rem}
.chat-form button{background:var(--grad);border:0;border-radius:12px;padding:0 16px;font-weight:700;color:#14103a;cursor:pointer}
.chat-note{font-size:.7rem;color:var(--dim);text-align:center;padding:0 12px 10px}
.typing{display:inline-flex;gap:4px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}

/* ---------- Article / page ---------- */
.page-hero{padding:72px 0 40px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 80% 0%,rgba(139,92,246,.25),transparent 50%)}
.page-hero h1{font-size:clamp(2.2rem,5vw,3.8rem)}
.page-hero p{color:var(--muted);font-size:1.12rem;max-width:720px}
.page-hero p.meta{font-size:.82rem}
.crumbs{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;color:var(--dim);margin-bottom:18px}
.crumbs a{color:var(--dim);text-decoration:none}
.crumbs a:hover{color:var(--amber)}
.prose{max-width:760px;margin:0 auto}
.prose h2{font-size:clamp(1.5rem,3vw,2rem);margin-top:1.8em}
.prose h3{margin-top:1.5em}
.prose p,.prose li{color:#d9d4f5}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin-bottom:.5em}
.prose strong{color:var(--text)}
.prose .tldr{border:1px solid var(--line-strong);background:rgba(139,92,246,.1);border-radius:16px;padding:20px 22px;margin:0 0 32px}
.prose .tldr p{margin:0}
.prose table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.95rem}
.prose th,.prose td{border:1px solid var(--line-strong);padding:10px 12px;text-align:left}
.prose th{background:var(--surface);font-family:var(--font-display)}
.meta{font-family:var(--font-mono);font-size:.76rem;color:var(--dim);letter-spacing:.06em}
.post-card{display:flex;flex-direction:column;text-decoration:none;color:var(--text)}
.post-card:hover{color:var(--text)}
.post-card h3{margin:12px 0 10px}
.post-card .tagline{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}
.post-card .meta{margin-top:auto;padding-top:16px}
.center{text-align:center}

/* ---------- Scroll reveal ---------- */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.js .reveal.in{opacity:1;transform:none}
.js .stagger>*{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.js .stagger.in>*{opacity:1;transform:none}
.js .stagger.in>*:nth-child(2){transition-delay:.08s}
.js .stagger.in>*:nth-child(3){transition-delay:.16s}
.js .stagger.in>*:nth-child(4){transition-delay:.24s}
.js .stagger.in>*:nth-child(5){transition-delay:.32s}
.js .stagger.in>*:nth-child(6){transition-delay:.4s}

/* ---------- Keyframes ---------- */
@keyframes rise{to{transform:none}}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(255,179,71,.7)}70%{box-shadow:0 0 0 12px rgba(255,179,71,0)}100%{box-shadow:0 0 0 0 rgba(255,179,71,0)}}
@keyframes blink{50%{opacity:.25}}
@keyframes slideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes scroll{to{transform:translateX(-50%)}}
@keyframes float{50%{transform:translate(-40px,40px) scale(1.08)}}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .hero .wrap,.demo,.cta-band,.tool,.compare{grid-template-columns:1fr}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:36px}
}
@media (max-width:860px){
  .burger{display:block}
  .nav-cta .btn{display:none}
  .menu{position:fixed;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg-2);border-bottom:1px solid var(--line);padding:8px 20px 20px;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;max-height:calc(100vh - 72px);overflow:auto}
  .menu.open{transform:none;opacity:1;visibility:visible}
  .menu li a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-size:1.05rem}
  .menu .mobile-cta{display:block;margin-top:16px}
  .menu .mobile-cta a{border:0;text-align:center;color:#14103a;display:flex}
  .menu li a.free{display:flex}
}
@media (min-width:861px){.menu .mobile-cta{display:none}}
@media (max-width:640px){
  body{font-size:16px}
  section{padding:72px 0}
  .hero{padding:48px 0 64px}
  .g2,.g3,.g4,.facts,.form .two,.foot-grid{grid-template-columns:1fr}
  .ba .row{grid-template-columns:1fr;gap:6px}
  .ba .to{transform:rotate(90deg);justify-self:center}
  .tool-in,.tool-out,.quiz{padding:24px}
  .cta-band{padding:26px;border-radius:22px}
  .chat-launch .label{display:none}
  .chat-launch{padding:10px}
  .mock .m-chat{position:static;width:auto;margin-top:18px}
  .feed ul{min-height:300px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .js .reveal,.js .stagger>*{opacity:1;transform:none}
}