/* ============================================================================
   REDLINE shared site styles. Motorsport instrument-panel aesthetic.
   Brand fonts: Chakra Petch (display) + Spline Sans Mono (data/labels).
   ========================================================================== */
:root{
  --bg:#08080a; --bg2:#0d0e11; --panel:#101116; --line:#1d1f26; --line2:#2a2d36;
  --ink:#eceef2; --ash:#8d93a0; --ash2:#5c606b;
  --red:#ff2233; --hot:#ff6a1a; --haz:#f5d020; --haz-d:#caa613; --green:#46e08a; --cyan:#27d3ee;
  --shadow:0 24px 70px rgba(0,0,0,.6);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  background:var(--bg); color:var(--ink); font-family:"Chakra Petch",sans-serif; font-weight:400;
  line-height:1.6; overflow-x:hidden; -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 500px at 78% -8%, rgba(255,42,40,.15), transparent 60%),
    radial-gradient(800px 600px at 8% 6%, rgba(255,106,26,.09), transparent 55%),
    linear-gradient(180deg,#0a0a0d,#08080a);
  background-attachment:fixed;
}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:34px 34px;mask-image:radial-gradient(circle at 50% 20%,#000,transparent 92%);}
a{color:inherit;text-decoration:none}
.mono{font-family:"Spline Sans Mono",monospace}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px;position:relative;z-index:1}
.kicker{font-family:"Spline Sans Mono",monospace;font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--haz)}
.hazard{height:8px;background:repeating-linear-gradient(-45deg,var(--haz) 0 18px,#0a0a0d 18px 36px);opacity:.85}

/* nav */
nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(12px);background:rgba(8,8,10,.78);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:14px 26px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-style:italic;letter-spacing:3px;font-size:21px}
.mark{width:38px;height:38px;flex:none;object-fit:contain;display:inline-block;vertical-align:middle}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:13px;letter-spacing:.5px;color:var(--ash)}
.nav-links a{transition:color .2s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:2px;background:var(--red)}
.nav-cta{margin-left:18px}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line2);border-radius:8px;color:var(--ink);width:42px;height:38px;font-size:18px;cursor:pointer}
.mobnav{display:none;border-top:1px solid var(--line);background:rgba(8,8,10,.96);padding:10px 26px 18px}
.mobnav a{display:block;padding:11px 0;color:var(--ash);border-bottom:1px solid var(--line);font-size:15px}
.mobnav a:last-of-type{border-bottom:none}
@media(max-width:860px){.nav-links{display:none}.burger{display:block}.nav-in .nav-cta{display:none}.mobnav.open{display:block}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:"Chakra Petch";font-weight:700;font-style:italic;letter-spacing:1px;border:none;border-radius:9px;padding:11px 20px;cursor:pointer;font-size:14px;transition:transform .15s,box-shadow .15s;white-space:nowrap}
.btn-primary{background:linear-gradient(95deg,var(--hot),var(--red));color:#fff;box-shadow:0 8px 26px rgba(255,42,40,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(255,42,40,.5)}
.btn-ghost{background:transparent;border:1px solid var(--line2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--haz-d);color:var(--haz)}
.btn-lg{padding:14px 26px;font-size:15px}

/* page hero (inner pages) */
.phero{padding:64px 0 34px}
.phero h1{font-size:clamp(34px,5.5vw,58px);line-height:1.02;font-weight:700;font-style:italic;letter-spacing:-1px;margin-top:14px}
.phero .lead{color:var(--ash);font-size:18px;max-width:640px;margin-top:18px}
.crumbs{font-family:"Spline Sans Mono",monospace;font-size:12px;letter-spacing:1px;color:var(--ash2)}
.crumbs a:hover{color:var(--ash)}

/* sections + prose */
section{padding:48px 0}
.sec-title{font-size:clamp(26px,4vw,40px);font-weight:700;font-style:italic;letter-spacing:-.5px;line-height:1.08;max-width:760px}
.sec-lead{color:var(--ash);max-width:640px;margin-top:14px;font-size:16px}
.prose{max-width:760px}
.prose h2{font-size:26px;font-weight:700;font-style:italic;margin:42px 0 12px;letter-spacing:-.3px}
.prose h3{font-size:18px;font-weight:700;font-style:italic;color:var(--haz);margin:26px 0 8px}
.prose p{color:#c7cbd3;margin-bottom:14px;font-size:16px}
.prose ul,.prose ol{color:#c7cbd3;margin:0 0 16px 20px;font-size:16px}
.prose li{margin-bottom:7px}
.prose b,.prose strong{color:var(--ink)}
.prose a{color:var(--haz);border-bottom:1px solid rgba(245,208,32,.35)}
.prose a:hover{color:var(--hot)}
.note{background:var(--bg2);border:1px solid var(--line);border-left:3px solid var(--haz);border-radius:10px;padding:16px 18px;color:var(--ash);font-size:15px;margin:20px 0}

/* spec bar */
.specs{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.spec{background:var(--panel);padding:20px 16px;text-align:center}
.spec .v{font-weight:700;font-style:italic;font-size:25px;color:var(--haz)}
.spec .k{font-family:"Spline Sans Mono",monospace;font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ash);margin-top:4px}
@media(max-width:820px){.specs{grid-template-columns:repeat(2,1fr)}.spec:last-child{grid-column:1/3}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px 20px;position:relative;overflow:hidden}
.step .n{font-family:"Spline Sans Mono",monospace;font-size:12px;color:var(--red);letter-spacing:2px}
.step h3{font-size:18px;font-weight:700;font-style:italic;margin:10px 0 7px}
.step p{color:var(--ash);font-size:14px}
.step::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:100%;background:linear-gradient(90deg,var(--hot),transparent)}
@media(max-width:820px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:linear-gradient(180deg,var(--panel),#0c0d11);border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:var(--line2)}
.card .ic{font-size:22px;width:46px;height:46px;border-radius:11px;background:var(--bg2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card h3{font-size:18px;font-weight:700;font-style:italic;margin-bottom:8px}
.card p{color:var(--ash);font-size:14px}
.card b{color:var(--ink)}
@media(max-width:880px){.cards{grid-template-columns:1fr}}

/* code block */
.codeblk{background:#0a0a0d;border:1px solid var(--line);border-radius:14px;padding:22px;font-family:"Spline Sans Mono",monospace;font-size:13px;line-height:1.9;color:var(--ash);box-shadow:var(--shadow);overflow-x:auto}
.codeblk .c{color:var(--ash2)}.codeblk .g{color:var(--green)}.codeblk .y{color:var(--haz)}.codeblk .r{color:var(--hot)}

/* operator rows */
.oprow{background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:20px 22px;display:flex;gap:16px;align-items:flex-start}
.oprow .ti{font-family:"Spline Sans Mono",monospace;color:var(--haz);font-size:13px;letter-spacing:1px;white-space:nowrap;padding-top:2px;min-width:120px}
.oprow .tx{color:var(--ash);font-size:14px}.oprow .tx b{color:var(--ink)}
@media(max-width:700px){.oprow{flex-direction:column;gap:6px}}

/* cta band */
.cta-band{background:linear-gradient(100deg,rgba(255,42,40,.12),rgba(245,208,32,.08));border:1px solid var(--line2);border-radius:18px;padding:38px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h3{font-size:26px;font-weight:700;font-style:italic}
.cta-band p{color:var(--ash);font-size:15px;margin-top:6px}

/* contact form */
.contact-form{max-width:680px}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cf-field{margin-bottom:16px}
.cf-field label{display:block;font-family:"Spline Sans Mono",monospace;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ash);margin-bottom:7px}
.cf-field input,.cf-field textarea{width:100%;background:var(--bg2);border:1px solid var(--line2);border-radius:10px;color:var(--ink);font-family:"Chakra Petch";font-weight:500;font-size:15px;padding:12px 14px;resize:vertical}
.cf-field input:focus,.cf-field textarea:focus{outline:none;border-color:var(--haz-d)}
.cf-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.cf-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.cf-msg{font-size:14px}.cf-msg.ok{color:var(--green)}.cf-msg.err{color:var(--red)}
@media(max-width:560px){.cf-row{grid-template-columns:1fr}}

/* faq */
.faq{border:1px solid var(--line);border-radius:13px;overflow:hidden}
.faq details{border-bottom:1px solid var(--line);background:var(--panel)}
.faq details:last-child{border-bottom:none}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--haz);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq .ans{padding:0 22px 20px;color:var(--ash);font-size:15px}

/* footer */
footer{border-top:1px solid var(--line);padding:46px 0 36px;color:var(--ash2);font-size:13px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:28px}
.foot-grid h4{font-family:"Spline Sans Mono",monospace;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--ash);margin-bottom:12px}
.foot-grid a{display:block;color:var(--ash);padding:5px 0;font-size:14px}
.foot-grid a:hover{color:var(--ink)}
.foot-bot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center;border-top:1px solid var(--line);padding-top:22px}
.tag{display:inline-block;font-family:"Spline Sans Mono",monospace;font-size:11px;letter-spacing:1px;color:var(--green);border:1px solid rgba(70,224,138,.3);border-radius:999px;padding:3px 11px}
.rg{margin-top:14px;font-size:12px;color:var(--ash2);max-width:760px;line-height:1.6}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr 1fr}}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.mt40{margin-top:40px}.mt24{margin-top:24px}.mt16{margin-top:16px}