/* ============================================================
   AlphaRidge — AI Business Consulting
   Algorithmic weave design · graphite palette · electric highlights
   ============================================================ */

:root{
  --graphite-900:#15171c;
  --graphite-800:#1c1f26;
  --graphite-700:#252934;
  --graphite-600:#323847;
  --graphite-500:#4a5266;
  --line:#2e3442;
  --text:#e6e9f0;
  --text-dim:#9aa3b5;
  --electric:#3ee6c4;
  --electric-2:#7c8aff;
  --electric-deep:#0fb89a;
  --white:#ffffff;
  --radius:14px;
  --maxw:1180px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--graphite-900);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* Algorithmic weave background */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  background:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;
  opacity:.18;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 80%);
}
body::after{
  content:"";
  position:fixed;top:-10%;right:-10%;width:55vw;height:55vw;z-index:-2;
  background:radial-gradient(circle,rgba(62,230,196,.10),transparent 70%);
  pointer-events:none;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(21,23,28,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.18rem;letter-spacing:.4px}
.brand img{width:34px;height:34px}
.brand span b{color:var(--electric)}
.nav-links{display:flex;gap:6px;align-items:center;list-style:none;flex-wrap:wrap}
.nav-links a{
  padding:9px 13px;border-radius:9px;font-size:.92rem;color:var(--text-dim);
  transition:.2s;font-weight:500;
}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:var(--graphite-700)}
.nav-cta{
  background:linear-gradient(120deg,var(--electric),var(--electric-deep));
  color:#0c1014 !important;font-weight:700 !important;
}
.nav-cta:hover{filter:brightness(1.08);background:linear-gradient(120deg,var(--electric),var(--electric-deep))!important}
.burger{display:none;background:none;border:1px solid var(--line);color:var(--text);
  width:44px;height:40px;border-radius:9px;font-size:1.3rem;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;padding:90px 0 70px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;text-transform:uppercase;
  letter-spacing:2px;color:var(--electric);border:1px solid var(--line);
  padding:6px 14px;border-radius:30px;background:var(--graphite-800);margin-bottom:22px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--electric);box-shadow:0 0 10px var(--electric)}
h1{font-size:clamp(2.1rem,4.4vw,3.5rem);line-height:1.08;font-weight:800;letter-spacing:-1px}
h1 em{font-style:normal;color:var(--electric)}
.hero p.lead{color:var(--text-dim);font-size:1.12rem;margin:22px 0 30px;max-width:540px}
.hero-visual{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.hero-visual img{width:100%;height:430px;object-fit:cover;filter:saturate(.85) contrast(1.05)}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(21,23,28,.1),rgba(21,23,28,.55))}

.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:11px;
  font-weight:700;font-size:.96rem;cursor:pointer;border:1px solid transparent;transition:.2s;
}
.btn-primary{background:linear-gradient(120deg,var(--electric),var(--electric-deep));color:#0c1014}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(62,230,196,.28)}
.btn-ghost{background:transparent;border-color:var(--graphite-500);color:var(--text)}
.btn-ghost:hover{border-color:var(--electric);color:var(--electric)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Sections ---------- */
section{padding:74px 0}
.section-head{max-width:680px;margin-bottom:46px}
.section-head .eyebrow{margin-bottom:16px}
h2{font-size:clamp(1.7rem,3vw,2.5rem);font-weight:800;letter-spacing:-.5px;line-height:1.15}
h2 + p{color:var(--text-dim);margin-top:14px;font-size:1.05rem}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* cards grid */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:linear-gradient(160deg,var(--graphite-800),var(--graphite-700));
  border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  position:relative;transition:.25s;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--electric),var(--electric-2));transform:scaleX(0);transform-origin:left;transition:.3s;
}
.card:hover{transform:translateY(-5px);border-color:var(--graphite-500)}
.card:hover::before{transform:scaleX(1)}
.card .ico{
  width:52px;height:52px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--graphite-900);border:1px solid var(--line);color:var(--electric);
}
.card .ico svg{width:26px;height:26px}
.card h3{font-size:1.18rem;margin-bottom:10px;font-weight:700}
.card p{color:var(--text-dim);font-size:.96rem}

/* feature image rows */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.split.rev .txt{order:2}
.split img{border-radius:var(--radius);border:1px solid var(--line);height:360px;width:100%;object-fit:cover;box-shadow:var(--shadow)}
.split ul{list-style:none;margin-top:18px;display:grid;gap:12px}
.split ul li{padding-left:30px;position:relative;color:var(--text-dim)}
.split ul li::before{content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:4px;
  background:var(--electric);box-shadow:0 0 12px rgba(62,230,196,.5)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat{background:var(--graphite-800);border:1px solid var(--line);border-radius:var(--radius);padding:30px 18px}
.stat b{display:block;font-size:2.4rem;color:var(--electric);font-weight:800;letter-spacing:-1px}
.stat span{color:var(--text-dim);font-size:.9rem}

/* steps */
.steps{counter-reset:s;display:grid;gap:22px}
.step{display:flex;gap:20px;align-items:flex-start;background:var(--graphite-800);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.step .n{counter-increment:s;flex:0 0 auto;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;color:#0c1014;background:linear-gradient(120deg,var(--electric),var(--electric-2))}
.step .n::before{content:counter(s,decimal-leading-zero)}
.step h3{font-size:1.12rem;margin-bottom:6px}
.step p{color:var(--text-dim);font-size:.95rem}

/* pricing */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.price{background:linear-gradient(160deg,var(--graphite-800),var(--graphite-700));border:1px solid var(--line);
  border-radius:var(--radius);padding:34px 30px;display:flex;flex-direction:column;position:relative}
.price.feat{border-color:var(--electric);box-shadow:0 0 0 1px var(--electric),0 20px 50px rgba(62,230,196,.12)}
.price .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(120deg,var(--electric),var(--electric-deep));
  color:#0c1014;font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:1px;padding:5px 14px;border-radius:20px}
.price h3{font-size:1.25rem;margin-bottom:6px}
.price .desc{color:var(--text-dim);font-size:.9rem;min-height:42px}
.price .amount{font-size:2.6rem;font-weight:800;margin:18px 0 4px;letter-spacing:-1px}
.price .amount small{font-size:1rem;color:var(--text-dim);font-weight:500}
.price ul{list-style:none;margin:20px 0 26px;display:grid;gap:11px}
.price ul li{padding-left:26px;position:relative;color:var(--text-dim);font-size:.93rem}
.price ul li::before{content:"✓";position:absolute;left:0;color:var(--electric);font-weight:800}
.price .btn{margin-top:auto;justify-content:center}

/* testimonials */
.quote{background:var(--graphite-800);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.quote p{font-style:italic;color:var(--text);margin-bottom:18px}
.quote .who{display:flex;align-items:center;gap:13px}
.quote .who img{width:48px;height:48px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.quote .who b{display:block;font-size:.95rem}
.quote .who span{color:var(--text-dim);font-size:.82rem}

/* faq */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;background:var(--graphite-800);overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--text);font-size:1.02rem;font-weight:600;
  padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit}
.faq-q .pl{color:var(--electric);font-size:1.4rem;transition:.3s;flex:0 0 auto}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--text-dim)}
.faq-a p{padding:0 24px 22px}
.faq-item.open .faq-a{max-height:300px}
.faq-item.open .pl{transform:rotate(45deg)}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--graphite-700),var(--graphite-800));border:1px solid var(--line);
  border-radius:18px;padding:54px 44px;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:
  linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:32px 32px;opacity:.25;mask-image:radial-gradient(circle at 50% 50%,#000,transparent 75%)}
.cta-band > *{position:relative}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:var(--text-dim);max-width:560px;margin:0 auto 26px}

/* forms */
.form-wrap{background:linear-gradient(160deg,var(--graphite-800),var(--graphite-700));border:1px solid var(--line);
  border-radius:var(--radius);padding:36px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.88rem;margin-bottom:7px;color:var(--text-dim);font-weight:500}
.field input,.field select,.field textarea{
  width:100%;background:var(--graphite-900);border:1px solid var(--line);border-radius:10px;
  padding:13px 15px;color:var(--text);font-family:inherit;font-size:.96rem;transition:.2s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--electric);box-shadow:0 0 0 3px rgba(62,230,196,.13)}
.field textarea{resize:vertical;min-height:130px}
.field.check{display:flex;gap:10px;align-items:flex-start}
.field.check input{width:auto;margin-top:4px}
.field.check label{margin:0;font-size:.85rem}
.form-note{font-size:.82rem;color:var(--text-dim);margin-top:6px}
.form-success{display:none;background:rgba(62,230,196,.1);border:1px solid var(--electric);color:var(--electric);
  padding:14px 18px;border-radius:10px;margin-bottom:18px;font-size:.92rem}

/* contact info */
.info-list{display:grid;gap:20px}
.info-item{display:flex;gap:16px;align-items:flex-start}
.info-item .ico{flex:0 0 auto;width:46px;height:46px;border-radius:11px;display:grid;place-items:center;
  background:var(--graphite-900);border:1px solid var(--line);color:var(--electric)}
.info-item b{display:block;font-size:.95rem;margin-bottom:2px}
.info-item span{color:var(--text-dim);font-size:.92rem}

/* generic prose for legal pages */
.prose{max-width:820px;margin:0 auto}
.prose h2{margin:36px 0 14px;font-size:1.5rem}
.prose h3{margin:26px 0 10px;font-size:1.18rem;color:var(--electric)}
.prose p,.prose li{color:var(--text-dim);margin-bottom:13px}
.prose ul,.prose ol{margin:0 0 16px 22px}
.prose li{margin-bottom:8px}
.prose .updated{color:var(--text-dim);font-size:.86rem;margin-bottom:30px;border-bottom:1px solid var(--line);padding-bottom:18px}
.page-hero{padding:64px 0 30px;text-align:center}
.page-hero .eyebrow{margin-bottom:18px}

/* table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;min-width:560px}
th,td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:.94rem}
th{background:var(--graphite-800);color:var(--text);font-weight:700}
td{color:var(--text-dim)}
tr:last-child td{border-bottom:none}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--graphite-800);padding:56px 0 28px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.footer-grid h4{font-size:.82rem;text-transform:uppercase;letter-spacing:1.4px;color:var(--text-dim);margin-bottom:16px}
.footer-grid ul{list-style:none;display:grid;gap:9px}
.footer-grid a{color:var(--text-dim);font-size:.92rem;transition:.2s}
.footer-grid a:hover{color:var(--electric)}
.footer-brand p{color:var(--text-dim);font-size:.92rem;margin:14px 0;max-width:300px}
.footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:22px;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--text-dim);font-size:.85rem}

/* cookie banner */
.cookie{position:fixed;left:18px;right:18px;bottom:18px;z-index:200;max-width:560px;margin:0 auto;
  background:var(--graphite-700);border:1px solid var(--electric);border-radius:14px;padding:22px 24px;
  box-shadow:var(--shadow);display:none}
.cookie.show{display:block;animation:pop .4s ease}
@keyframes pop{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.cookie h4{font-size:1.05rem;margin-bottom:8px}
.cookie p{color:var(--text-dim);font-size:.88rem;margin-bottom:16px}
.cookie p a{color:var(--electric);text-decoration:underline}
.cookie .row{display:flex;gap:10px;flex-wrap:wrap}
.cookie .btn{padding:11px 20px;font-size:.88rem}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .hero-grid,.split,.split.rev{grid-template-columns:1fr;gap:34px}
  .split.rev .txt{order:0}
  .grid-3,.grid-4,.pricing{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-visual img{height:340px}
}
@media(max-width:680px){
  .burger{display:block}
  .nav-links{position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--graphite-800);border-bottom:1px solid var(--line);padding:14px 18px;gap:4px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px}
  .grid-3,.grid-4,.grid-2,.pricing,.stats,.footer-grid{grid-template-columns:1fr}
  section{padding:54px 0}
  .cta-band{padding:38px 24px}
  .hero{padding:54px 0 40px}
}