/* ============================================================
   Mad Man Data — shared stylesheet
   Real, responsive rebuild of the approved page designs.
   ============================================================ */
:root{
  --bg:#02090f;
  --bg-2:#04121f;
  --surface:#071726;
  --surface-2:#0a2036;
  --border:#153049;
  --border-soft:#0f2739;
  --text:#eaf2fb;
  --muted:#9fb3c6;
  --muted-2:#6f8296;
  --accent:#1a9fff;
  --accent-2:#0a84e0;
  --accent-ink:#0b3a63;
  --ok:#1a9fff;
  --maxw:1120px;
  --radius:14px;
  --gap:22px;
  --font-head:'Montserrat',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.08;margin:0;font-weight:800;letter-spacing:-.01em}
p{margin:0 0 1rem}
.container{width:min(var(--maxw),92vw);margin-inline:auto}
.accent{color:var(--accent)}
.eyebrow{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.28em;
  font-size:.72rem;font-weight:700;color:var(--accent)}
.muted{color:var(--muted)}
.center{text-align:center}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--font-head);
  font-weight:700;font-size:.95rem;padding:.72em 1.5em;border-radius:10px;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;line-height:1}
.btn .arw{transition:transform .18s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#001322}
.btn-primary:hover{background:var(--accent-2);color:#fff}
.btn-outline{border-color:var(--accent);color:var(--accent);background:transparent}
.btn-outline:hover{background:rgba(26,159,255,.12)}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(2,9,15,.9);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border-soft)}
.nav{display:flex;align-items:center;gap:22px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand img{width:46px;height:46px;border-radius:8px}
.brand b{display:block;font-family:var(--font-head);font-weight:800;letter-spacing:.02em;font-size:1.05rem;margin-bottom:2px}
.brand span{display:block;font-size:.6rem;letter-spacing:.24em;color:var(--muted);text-transform:uppercase}
.nav-links{display:flex;gap:6px;margin-left:auto;align-items:center}
.nav-links a{font-family:var(--font-head);font-weight:600;font-size:.95rem;color:var(--muted);
  padding:.5em .8em;border-radius:8px;transition:.15s}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{content:"";display:block;height:2px;background:var(--accent);
  margin-top:4px;border-radius:2px}
.nav-cta{display:flex;align-items:center;gap:16px}
.tagline{font-family:var(--font-head);font-weight:700;font-size:.62rem;line-height:1.35;
  letter-spacing:.06em;color:var(--muted);text-align:right}
.tagline b{color:var(--text)}
.nav-toggle{display:none;background:none;border:0;color:var(--text);cursor:pointer;
  margin-left:auto;padding:8px}
.nav-toggle svg{width:26px;height:26px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border-soft)}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,var(--bg) 32%,rgba(2,9,15,.55) 60%,rgba(2,9,15,.2) 100%)}
.hero-inner{position:relative;z-index:1;padding:44px 0 32px;max-width:640px}
.hero h1{font-size:clamp(2.2rem,5.6vw,3.7rem);text-transform:uppercase;margin:.2em 0 .3em}
.hero .lead{font-size:1.1rem;color:var(--muted);max-width:34em}

/* logo-led hero (home) */
.hero-logo{text-align:center;max-width:none}
.hero-logo .brand-logo{width:min(400px,60vw);margin:2px auto 4px;
  filter:drop-shadow(0 12px 40px rgba(0,0,0,.6))}
.hero-logo .lead{margin-inline:auto;text-align:center;font-size:1.08rem}
.hero-logo .eyebrow{display:block;margin-bottom:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- feature row (icons) ---------- */
.feature-band{background:var(--bg-2);border-bottom:1px solid var(--border-soft)}
.feature-band .features{border-top:0}
.features{display:flex;flex-wrap:wrap;gap:20px 40px;padding:24px 0;border-top:1px solid var(--border-soft);
  position:relative;z-index:1}
.intro-band{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-bottom:1px solid var(--border-soft);
  text-align:center}
.intro-band .inner{max-width:760px;margin:auto;padding:4px 0}
.intro-band h2{font-size:clamp(1.4rem,3vw,2rem);text-transform:uppercase;margin-bottom:.4em}
.feature{display:flex;align-items:center;gap:12px;font-family:var(--font-head);font-weight:700;
  text-transform:uppercase;font-size:.82rem;letter-spacing:.03em;line-height:1.15}
.feature svg{width:30px;height:30px;color:var(--accent);flex:0 0 auto}

/* ---------- sections ---------- */
section{padding:56px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 38px}
.section-head h2{font-size:clamp(1.7rem,4vw,2.5rem);text-transform:uppercase;margin-bottom:.4em}
.section-head p{color:var(--muted);font-size:1.05rem;margin:0}

/* ---------- card grid ---------- */
.grid{display:grid;gap:var(--gap)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--border);border-radius:var(--radius);padding:20px;overflow:hidden}
.card h3{font-size:1.12rem;text-transform:uppercase;margin-bottom:.35em}
.card .sub{color:var(--accent);font-weight:600;font-size:.92rem;margin-bottom:14px}
.card .thumb{border-radius:10px;overflow:hidden;margin:14px 0;border:1px solid var(--border-soft)}
.card .thumb img{width:100%;height:150px;object-fit:cover}
.list{list-style:none;margin:0;padding:0}
.list li{position:relative;padding:5px 0 5px 20px;color:var(--muted);font-size:.92rem}
.list li::before{content:"›";position:absolute;left:2px;color:var(--accent);font-weight:700}
.list.check li::before{content:"✓";font-size:.85rem;color:var(--accent)}

/* ---------- band (alt background) ---------- */
.band{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-block:1px solid var(--border-soft)}

/* flow: messy -> madman -> useful */
.flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:14px}
.flow .arrow{align-self:center;color:var(--accent);font-size:1.8rem}
.flow .panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;text-align:center}
.flow .panel h4{text-transform:uppercase;color:var(--accent);margin-bottom:14px;font-size:1rem}
.chips{display:flex;flex-wrap:wrap;gap:14px 18px;justify-content:center;margin-bottom:12px}
.chip{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:.72rem;color:var(--muted);width:54px}
.chip svg{width:26px;height:26px;color:var(--accent)}
.flow .panel small{color:var(--muted-2);font-size:.72rem;letter-spacing:.04em}

/* ---------- split feature (image + text) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split img.shot{border-radius:var(--radius);border:1px solid var(--border);width:100%;
  height:100%;max-height:420px;object-fit:cover}

/* ---------- CTA strip ---------- */
.cta-strip{position:relative;overflow:hidden;border-top:1px solid var(--border);
  background:#041627}
.cta-strip::before{content:"";position:absolute;inset:0;
  background:url("img/cta-mountains.jpg") center/cover no-repeat;opacity:.38}
.cta-strip::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(2,9,15,.92),rgba(2,9,15,.55) 55%,rgba(4,27,48,.72))}
.cta-strip .inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;
  gap:30px;flex-wrap:wrap;padding:46px 0;text-align:center}
.cta-strip h2{font-size:clamp(1.5rem,3.5vw,2.2rem);text-transform:uppercase}
.cta-strip h2 span{display:block;color:var(--accent);font-size:.72em}

/* ---------- footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--border-soft);padding:30px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-inner img{width:54px;height:54px;border-radius:8px}
.footer-inner .fnav{display:flex;gap:18px;flex-wrap:wrap}
.footer-inner .fnav a{color:var(--muted);font-size:.9rem}
.footer-inner .fnav a:hover{color:var(--accent)}
.footer-slogan{width:100%;text-align:center;color:var(--muted-2);font-family:var(--font-head);
  letter-spacing:.22em;text-transform:uppercase;font-size:.72rem;margin-top:22px}

/* ---------- forms (contact) ---------- */
.form{display:grid;gap:16px}
.field{display:grid;gap:6px}
.field label{font-family:var(--font-head);font-weight:600;font-size:.85rem;letter-spacing:.02em}
.field input,.field textarea,.field select{
  background:var(--surface);border:1px solid var(--border);border-radius:10px;color:var(--text);
  padding:.8em .9em;font:inherit;transition:.15s}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(26,159,255,.18)}
.field textarea{min-height:150px;resize:vertical}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{color:var(--muted);font-size:.82rem}
.form-status{padding:.8em 1em;border-radius:10px;font-size:.92rem;display:none}
.form-status.show{display:block}
.form-status.ok{background:rgba(26,159,255,.12);border:1px solid var(--accent);color:var(--text)}
.form-status.err{background:rgba(255,80,80,.12);border:1px solid #ff5050;color:#ffd7d7}

/* ---------- workflow chain / architecture steps ---------- */
.chain{display:flex;flex-wrap:wrap;gap:10px;align-items:stretch}
.chain .step{flex:1 1 120px;min-width:120px;background:var(--surface);border:1px solid var(--border);
  border-radius:12px;padding:14px 12px;text-align:center;font-family:var(--font-head);font-weight:700;
  font-size:.82rem;text-transform:uppercase;letter-spacing:.02em;display:flex;align-items:center;justify-content:center}
.chain .step small{display:block;font-family:var(--font-body);font-weight:400;text-transform:none;
  letter-spacing:0;color:var(--muted);font-size:.72rem;margin-top:4px}
.chain .sep{align-self:center;color:var(--accent);font-size:1.3rem;flex:0 0 auto}
.pipe{display:grid;gap:10px;max-width:520px}
.pipe .node{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 16px;
  display:flex;align-items:center;gap:12px}
.pipe .node b{font-family:var(--font-head)}
.pipe .node .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.pipe .down{justify-self:center;color:var(--accent);font-size:1.2rem;line-height:.6}
.tag{display:inline-block;background:rgba(26,159,255,.14);border:1px solid var(--accent);
  color:var(--accent);font-family:var(--font-head);font-weight:700;font-size:.72rem;text-transform:uppercase;
  letter-spacing:.08em;padding:.35em .8em;border-radius:100px}

/* ---------- accessibility ---------- */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#001322;padding:10px 16px;
  z-index:100;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- responsive ---------- */
@media(max-width:920px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:10px}
  .flow .arrow{transform:rotate(90deg);justify-self:center}
  .split{grid-template-columns:1fr}
  .tagline{display:none}
}
@media(max-width:720px){
  .nav-links{position:fixed;inset:60px 0 auto 0;flex-direction:column;background:var(--bg-2);
    border-bottom:1px solid var(--border);padding:10px 6vw 20px;gap:2px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:.8em .4em;border-bottom:1px solid var(--border-soft)}
  .nav-links a.active::after{display:none}
  .nav-toggle{display:block}
  .nav-cta .btn-outline{display:none}
  .grid-4,.grid-3,.grid-2,.form .row{grid-template-columns:1fr}
}