/* ============================================================
   SPARELYNX — AI That Finds Your Parts
   Brand: SpareLynx blue #1070B0 · Syntatics orange #D06000
   ============================================================ */
:root{
  --blue:#1070b0;
  --blue-deep:#0a4d7c;
  --blue-ink:#08253d;
  --blue-darker:#051a2b;
  --orange:#d06000;
  --orange-soft:#f5a04a;
  --ink:#122434;
  --muted:#5a7184;
  --line:#dce8f2;
  --bg:#f7fafc;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(8,37,61,.08);
  --shadow-lg:0 24px 60px rgba(8,37,61,.16);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,.brand-logo img{font-family:'Space Grotesk','Inter',sans-serif}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-weight:600;font-size:.98rem;padding:.85rem 1.6rem;border-radius:999px;
  border:1.5px solid transparent;cursor:pointer;transition:all .22s ease;font-family:inherit}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(16,112,176,.35)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn-ghost:hover{background:rgba(16,112,176,.08)}
.section-dark .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.section-dark .btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:.55rem 1.1rem;font-size:.88rem}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,250,252,.86);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding:.7rem 24px}
.brand-logo{height:26px;width:auto}
.main-nav{display:flex;gap:1.6rem}
.main-nav a{color:var(--muted);font-weight:500;font-size:.92rem;position:relative;transition:color .2s}
.main-nav a:hover,.main-nav a.active{color:var(--blue)}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--orange);border-radius:2px}
.header-cta{display:flex;align-items:center;gap:.8rem}
.nav-toggle{display:none;background:none;border:0;width:38px;height:34px;cursor:pointer;
  flex-direction:column;justify-content:center;gap:6px;align-items:center}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;padding:5.5rem 0 3.5rem;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:
   radial-gradient(700px 420px at 85% 8%, rgba(16,112,176,.14), transparent 65%),
   radial-gradient(560px 380px at 4% 88%, rgba(208,96,0,.10), transparent 60%);
  pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3.2rem;align-items:center;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-family:'Space Grotesk',monospace;
  font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-deep);
  background:#e7f1fa;border:1px solid var(--line);padding:.4rem .9rem;border-radius:999px;margin-bottom:1.3rem}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 4px rgba(208,96,0,.18);animation:pulse 2.2s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(208,96,0,.05)}}
h1{font-size:clamp(2.3rem,4.6vw,3.6rem);line-height:1.12;letter-spacing:-.02em;font-weight:700;color:var(--blue-ink)}
.grad{background:linear-gradient(92deg,var(--blue) 15%,var(--orange) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lede{margin:1.4rem 0 1.9rem;color:var(--muted);font-size:1.08rem;max-width:56ch}
.hero-actions{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-trust{display:flex;gap:1.4rem;flex-wrap:wrap;list-style:none;margin-top:1.6rem;
  color:var(--muted);font-size:.85rem}
.hero-trust li::before{content:"✓";color:var(--orange);font-weight:700;margin-right:.45rem}

/* ---------- finder demo card ---------- */
.finder-card{background:var(--card);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-lg);overflow:hidden;transform:rotate(.4deg)}
.finder-bar{display:flex;align-items:center;gap:6px;background:#0d3a5c;padding:10px 16px}
.fdot{width:9px;height:9px;border-radius:50%;background:#2f6f9d}
.fdot:nth-child(2){background:#3d84b8}.fdot:nth-child(3){background:#59a2d3}
.finder-url{margin-left:10px;color:#a9cde8;font-family:'Space Grotesk',monospace;font-size:.78rem;letter-spacing:.06em}
.finder-body{padding:1.2rem;display:flex;flex-direction:column;gap:1rem}
.msg-user .bubble{background:var(--blue);color:#fff;padding:.7rem 1rem;border-radius:14px 14px 4px 14px;
  font-size:.95rem;max-width:90%;margin-left:auto;width:max-content;min-height:1.6em}
.caret{display:inline-block;width:2px;height:1.05em;background:#fff;vertical-align:-2px;animation:blink .75s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.ai-head{font-size:.72rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;
  display:flex;align-items:center;gap:.5rem;margin-bottom:.55rem}
.ai-head b{color:var(--blue-deep)}
.ai-avatar{width:24px;height:24px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--orange));
  color:#fff;font-size:.62rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center;flex:none}
.part-card{border:1.5px solid var(--line);border-radius:14px;padding:.9rem 1rem;background:#fbfdff}
.part-top{display:flex;justify-content:space-between;align-items:center;font-size:.72rem;color:var(--muted)}
.chip{padding:.15rem .55rem;border-radius:6px;font-weight:700;letter-spacing:.06em;font-size:.68rem}
.chip-oem{background:#e2f2e6;color:#1a7a35}
.part-name{font-weight:700;margin-top:.4rem;color:var(--blue-ink)}
.part-fit{font-size:.85rem;color:var(--muted);margin-top:.15rem}
.part-price{margin-top:.5rem;font-weight:700;font-size:1.15rem;color:var(--blue-deep)}
.part-price-note{font-weight:400;font-size:.78rem;color:var(--muted);margin-left:.5rem}
.part-cta{margin-top:.7rem;background:var(--blue);color:#fff;text-align:center;font-size:.85rem;
  font-weight:600;padding:.5rem;border-radius:9px}
.tip{margin-top:.8rem;font-size:.83rem;color:var(--muted);border-left:3px solid var(--orange);
  padding:.35rem .7rem;background:#fff8ef;border-radius:0 8px 8px 0}
.tip b{color:var(--orange)}
.finder-foot{border-top:1px dashed var(--line);padding:.8rem 1.2rem;color:var(--muted);
  font-size:.8rem;text-align:center;background:#f2f8fc}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:3.4rem;position:relative}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.3rem 1rem;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.9rem;color:var(--blue);letter-spacing:-.02em}
.stat span{font-size:.82rem;color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:5.2rem 0}
.section-tint{background:#eef5fb;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:linear-gradient(160deg,var(--blue-ink) 0%,var(--blue-darker) 100%);color:#e8f2fa}
.section-dark h2{color:#fff}
.section-dark .kicker{color:var(--orange-soft)}
.kicker{font-family:'Space Grotesk',monospace;font-size:.78rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--orange);font-weight:600;margin-bottom:1rem}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem);letter-spacing:-.015em;line-height:1.2;
  color:var(--blue-ink);max-width:22ch;font-weight:700}
.section-sub{color:var(--muted);margin-top:1rem;max-width:66ch;font-size:1.02rem}
.section-dark .section-sub{color:#a9c4da}
.section-sub.left{max-width:52ch}

/* ---------- features ---------- */
.feature-grid{margin-top:2.8rem;display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.5rem 1.4rem;box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease}
.feature:hover{transform:translateY(-5px);border-color:#b9d8ef}
.f-ico{width:44px;height:44px;border-radius:12px;background:#e7f1fa;display:flex;align-items:center;
  justify-content:center;font-size:1.25rem;margin-bottom:.9rem}
.feature h3{font-size:1.05rem;color:var(--blue-ink);margin-bottom:.45rem}
.feature p{font-size:.9rem;color:var(--muted)}

/* ---------- channels ---------- */
.channel-grid{margin-top:2.6rem;display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.channel{border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:1.6rem 1.6rem 1.4rem;
  background:rgba(255,255,255,.04);transition:background .25s,transform .25s}
.channel:hover{background:rgba(255,255,255,.09);transform:translateY(-4px)}
.ch-tag{font-family:'Space Grotesk',monospace;font-size:.72rem;letter-spacing:.18em;
  color:var(--orange-soft);text-transform:uppercase;margin-bottom:.7rem}
.channel h3{font-size:1.2rem;color:#fff;margin-bottom:.5rem}
.channel p{color:#a9c4da;font-size:.93rem}

/* ---------- steps ---------- */
.steps{margin-top:3rem;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;counter-reset:step}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:2rem 1.5rem 1.6rem;box-shadow:var(--shadow)}
.step-num{position:absolute;top:-22px;left:20px;width:44px;height:44px;border-radius:14px;
  background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;font-family:'Space Grotesk',sans-serif;
  font-weight:700;font-size:1.15rem;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(16,112,176,.35)}
.step h3{margin:.5rem 0 .6rem;font-size:1.08rem;color:var(--blue-ink)}
.step p{font-size:.9rem;color:var(--muted)}

/* ---------- who ---------- */
.who-grid{margin-top:2.6rem;display:grid;grid-template-columns:repeat(5,1fr);gap:1rem}
.who{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem 1.1rem}
.who b{font-family:'Space Grotesk',sans-serif;color:var(--orange);font-size:1.1rem;
  display:inline-flex;width:34px;height:34px;border-radius:10px;background:#fdf0e2;
  align-items:center;justify-content:center;margin-bottom:.7rem}
.who h3{font-size:.98rem;color:var(--blue-ink);margin-bottom:.4rem;line-height:1.3}
.who p{font-size:.83rem;color:var(--muted)}

/* ---------- pricing ---------- */
.price-grid{margin-top:2.8rem;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;align-items:stretch}
.plan{background:var(--card);border:1.5px solid var(--line);border-radius:18px;padding:1.7rem 1.4rem;
  display:flex;flex-direction:column;position:relative;box-shadow:var(--shadow);transition:transform .25s}
.plan:hover{transform:translateY(-5px)}
.plan h3{font-size:1.05rem;color:var(--blue-ink)}
.plan-price{font-family:'Space Grotesk',sans-serif;font-size:2.1rem;font-weight:700;color:var(--blue);margin:.5rem 0 .2rem}
.plan-price span{font-size:.85rem;font-weight:500;color:var(--muted)}
.plan-for{font-size:.83rem;color:var(--muted);min-height:2.4em}
.plan ul{list-style:none;margin:1rem 0 1.4rem;flex:1}
.plan li{font-size:.87rem;color:var(--ink);padding:.42rem 0 .42rem 1.5rem;position:relative;border-top:1px dashed var(--line)}
.plan li::before{content:"✓";position:absolute;left:.15rem;color:var(--orange);font-weight:700}
.plan-pop{border-color:var(--blue);box-shadow:0 18px 44px rgba(16,112,176,.25)}
.plan-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--orange);
  color:#fff;font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  padding:.3rem .85rem;border-radius:999px;white-space:nowrap}

/* ---------- faq ---------- */
.faq-list{margin-top:2.2rem}
.faq-list details{background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:.8rem;overflow:hidden;transition:box-shadow .2s}
.faq-list details[open]{box-shadow:var(--shadow)}
.faq-list summary{cursor:pointer;list-style:none;padding:1.05rem 1.3rem;font-weight:600;
  color:var(--blue-ink);display:flex;justify-content:space-between;align-items:center;gap:1rem;font-size:.98rem}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-family:'Space Grotesk',sans-serif;font-size:1.3rem;
  color:var(--orange);transition:transform .25s;flex:none}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list p{padding:0 1.3rem 1.1rem;color:var(--muted);font-size:.92rem}

/* ---------- contact ---------- */
.cta-section{padding-bottom:5.6rem}
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:start;margin-top:.5rem}
.contact-list{list-style:none;margin-top:1.6rem;display:flex;flex-direction:column;gap:.7rem;color:#a9c4da;font-size:.95rem}
.contact-list a{color:var(--orange-soft)}
.contact-list b{color:#fff;font-weight:600}
.contact-form{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:18px;padding:1.8rem}
.contact-form h3{color:#fff;margin-bottom:1.1rem;font-size:1.1rem}
.field{margin-bottom:.9rem}
.field label{display:block;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  color:#8fb4d1;margin-bottom:.35rem}
.field input,.field select,.field textarea{width:100%;background:rgba(255,255,255,.94);border:1px solid transparent;
  border-radius:10px;padding:.7rem .85rem;font-family:inherit;font-size:.92rem;color:var(--ink);outline:none}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--orange)}
.form-note{font-size:.8rem;color:#8fb4d1;margin-top:.8rem;text-align:center}
.form-note.ok{color:#7be0a8}
.form-note.err{color:#ff9d9d}

/* ---------- footer ---------- */
.site-footer{background:var(--blue-darker);color:#9fc0d8;padding:3.6rem 0 2rem;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2.5rem}
.footer-logo{height:30px;width:auto;margin-bottom:1rem;filter:brightness(0) invert(1);opacity:.95}
.footer-brand p{font-size:.88rem;max-width:44ch}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:.9rem}
.footer-col a{display:block;color:#9fc0d8;font-size:.88rem;padding:.28rem 0;transition:color .2s}
.footer-col a:hover{color:var(--orange-soft)}
.venture{display:flex;align-items:center;justify-content:center;gap:1rem;margin:3rem 0 1.4rem;flex-wrap:wrap}
.venture-line{flex:1;min-width:60px;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent)}
.venture-label{font-family:'Space Grotesk',sans-serif;letter-spacing:.28em;text-transform:uppercase;
  font-size:.72rem;color:#7fa6c4}
.venture-logo{height:26px;width:auto;filter:brightness(0) invert(1);opacity:.9}
.footer-bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);padding-top:1.3rem;font-size:.8rem;color:#6f96b6}

/* ---------- legal pages ---------- */
.legal{max-width:820px;margin:0 auto;padding:4rem 24px 5rem}
.legal h1{margin-bottom:.5rem}
.legal h2{font-size:1.15rem;margin:2rem 0 .6rem;max-width:none}
.legal p{color:var(--muted);font-size:.95rem}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .who-grid{grid-template-columns:repeat(3,1fr)}
  .price-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav{position:fixed;inset:56px 0 auto 0;background:#fff;flex-direction:column;gap:0;
    padding:1rem 24px 1.4rem;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);
    display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:.7rem 0;border-bottom:1px dashed var(--line);font-size:1rem}
  .nav-toggle{display:flex}
}
@media (max-width:560px){
  .header-cta .btn{display:none}
  .brand-logo{height:22px}
}
@media (max-width:640px){
  .channel-grid,.steps,.price-grid,.feature-grid,.who-grid{grid-template-columns:1fr}
  .hero{padding-top:3.2rem}
  .section{padding:3.6rem 0}
  .finder-card{transform:none}
}