:root{
  --bg:#0B0E0C; --bg2:#111512; --bg3:#171C18;
  --ink:#F2F4F1; --muted:#A7B0A6; --faint:#6E776D;
  --accent:#FF5C1A; --accent-d:#E04E12;
  --line:rgba(255,255,255,.09);
  --radius:14px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.wrap.narrow{max-width:760px}
.accent{color:var(--accent)}
.hidden{display:none!important}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,14,12,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:var(--accent);color:#0B0E0C;font-weight:900}
.nav-links{display:flex;gap:22px;margin-left:auto}
.nav-links a{color:var(--muted);text-decoration:none;font-size:.92rem;font-weight:500}
.nav-links a:hover{color:var(--ink)}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:1.4rem;cursor:pointer;margin-left:auto}

/* ---------- buttons ---------- */
.btn{display:inline-block;padding:14px 28px;border-radius:10px;font-weight:700;font-size:.98rem;text-decoration:none;cursor:pointer;border:0;transition:transform .12s ease,box-shadow .12s ease,background .12s ease;text-align:center}
.btn-primary{background:var(--accent);color:#0B0E0C}
.btn-primary:hover{background:var(--accent-d);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:10px 20px;font-size:.88rem}
.btn-lg{width:100%;font-size:1.05rem;padding:16px}

/* ---------- hero ---------- */
.hero{padding:110px 0 90px;background:radial-gradient(900px 420px at 50% -80px,rgba(255,92,26,.14),transparent 70%)}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--accent);margin-bottom:18px}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.04;font-weight:900;letter-spacing:-.03em;margin-bottom:22px}
.lede{font-size:1.15rem;color:var(--muted);max-width:640px;margin-bottom:34px}
.lede strong{color:var(--ink)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:52px}
.hero-proof{display:flex;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;max-width:720px}
.hero-proof div{flex:1;padding:20px 24px;border-left:1px solid var(--line)}
.hero-proof div:first-child{border-left:0}
.hero-proof strong{display:block;font-size:1.25rem;letter-spacing:-.02em}
.hero-proof span{color:var(--faint);font-size:.85rem}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-dark{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{font-size:clamp(1.9rem,3.6vw,2.9rem);font-weight:800;letter-spacing:-.025em;line-height:1.12;margin-bottom:18px}
.section .lede{margin-bottom:48px}

/* ---------- cards ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;position:relative}
.card-num{font-size:2.6rem;font-weight:900;color:var(--accent);letter-spacing:-.03em;line-height:1;margin-bottom:14px}
.card h3{font-size:1.15rem;margin-bottom:10px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:.96rem}
.tag{display:inline-block;margin-top:16px;font-size:.78rem;font-weight:700;color:var(--accent);border:1px solid rgba(255,92,26,.35);border-radius:999px;padding:4px 12px}

/* ---------- brain ---------- */
.brain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:48px}
.brain-item{background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.brain-item h3{font-size:1.02rem;margin-bottom:8px;color:var(--accent)}
.brain-item p{color:var(--muted);font-size:.92rem}
.brain-note{background:rgba(255,92,26,.07);border:1px solid rgba(255,92,26,.3);border-radius:var(--radius);padding:32px;display:flex;gap:28px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brain-note p{flex:1;min-width:260px;color:var(--muted)}
.brain-note strong{color:var(--ink)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.step{background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:flex;gap:22px}
.step-num{font-size:1rem;font-weight:800;color:#0B0E0C;background:var(--accent);width:44px;height:44px;flex:0 0 44px;border-radius:12px;display:flex;align-items:center;justify-content:center}
.step h3{margin-bottom:8px;font-size:1.15rem}
.step p{color:var(--muted);font-size:.95rem}

/* ---------- pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:36px;align-items:stretch}
.price-card{background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);padding:36px 30px;display:flex;flex-direction:column;position:relative}
.price-card.featured{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 24px 60px -24px rgba(255,92,26,.35)}
.badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--accent);color:#0B0E0C;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;padding:5px 14px;border-radius:999px;white-space:nowrap}
.price-card h3{font-size:1.2rem;margin-bottom:6px}
.price{font-size:2.6rem;font-weight:900;letter-spacing:-.03em;margin:8px 0 4px}
.price span{font-size:1rem;font-weight:500;color:var(--faint)}
.price-desc{color:var(--muted);font-size:.92rem;margin-bottom:20px}
.price-card ul{list-style:none;margin-bottom:28px;flex:1}
.price-card li{padding:9px 0 9px 28px;position:relative;color:var(--muted);font-size:.93rem;border-top:1px solid var(--line)}
.price-card li::before{content:"✓";position:absolute;left:4px;color:var(--accent);font-weight:800}
.guarantee{background:rgba(255,92,26,.07);border:1px solid rgba(255,92,26,.3);border-radius:var(--radius);padding:32px;text-align:center}
.guarantee h3{text-transform:uppercase;letter-spacing:.12em;font-size:.85rem;color:var(--accent);margin-bottom:12px}
.guarantee p{font-size:1.1rem;max-width:640px;margin:0 auto 10px}
.fine{color:var(--faint);font-size:.85rem!important}

/* ---------- checklist ---------- */
.checklist{list-style:none;margin:28px 0 36px}
.checklist li{padding:12px 0 12px 34px;position:relative;font-size:1.05rem;border-top:1px solid var(--line)}
.checklist li::before{content:"✓";position:absolute;left:6px;color:var(--accent);font-weight:800;font-size:1.1rem}

/* ---------- faq ---------- */
.faq details{background:var(--bg3);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq summary{padding:20px 24px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:1.4rem;font-weight:400;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 24px 22px;color:var(--muted);font-size:.96rem}

/* ---------- form ---------- */
.audit-form{background:var(--bg3);border:1px solid var(--line);border-radius:var(--radius);padding:40px 36px;margin-top:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:.85rem;font-weight:600;color:var(--muted);margin-bottom:8px}
.form-field input,.form-field select{width:100%;background:var(--bg2);border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:13px 15px;font-size:.98rem;font-family:var(--font)}
.form-field input:focus,.form-field select:focus{outline:none;border-color:var(--accent)}
.form-field select option{background:var(--bg2)}
.audit-form .fine{text-align:center;margin-top:16px}
.form-success{background:rgba(46,160,67,.12);border:1px solid rgba(46,160,67,.4);color:#7ee2a0;border-radius:10px;padding:18px;margin-top:18px;font-weight:600}
.form-error{background:rgba(255,92,26,.1);border:1px solid rgba(255,92,26,.45);color:#ffb08a;border-radius:10px;padding:18px;margin-top:18px;font-weight:500}
.form-error a{color:var(--accent);font-weight:700}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:56px 0 28px;background:var(--bg)}
.footer-inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:40px}
.footer-inner p{color:var(--faint);font-size:.9rem;margin-top:12px}
.footer-inner a{color:var(--muted);text-decoration:none}
.footer-inner a:hover{color:var(--accent)}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;align-content:flex-start}
.footer-base{color:var(--faint);font-size:.82rem;border-top:1px solid var(--line);padding-top:24px}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .cards-3,.brain-grid,.pricing{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg2);flex-direction:column;padding:20px 24px;border-bottom:1px solid var(--line);gap:16px}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .nav .btn-sm{margin-left:0}
  .hero{padding:72px 0 60px}
  .hero-proof{flex-direction:column}
  .hero-proof div{border-left:0;border-top:1px solid var(--line)}
  .hero-proof div:first-child{border-top:0}
  .form-row{grid-template-columns:1fr}
  .section{padding:64px 0}
  .audit-form{padding:28px 22px}
}