/* ===================================================================
   AltoTive — Design System
   Blueprint engineering aesthetic: deep blueprint blue + steel neutrals
   + industrial safety-amber signal accent. Space Grotesk / Inter / IBM Plex Mono.
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --ink:        #0B1220;
  --paper:      #FFFFFF;
  --mist:       #F4F6F8;
  --mist-2:     #ECEFF2;
  --blueprint:  #1B3A6B;
  --blueprint-2:#28497F;
  --blueprint-light:#EAF0F9;
  --signal:     #F5A623;
  --signal-ink: #7A5200;
  --line:       #E2E6EA;
  --line-strong:#CBD2D9;
  --muted:      #5B6672;
  --muted-2:    #8894A0;
  --ok:         #1F8A5B;
  --ok-bg:      #E8F5EE;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', monospace;

  --container: 1180px;
  --radius: 10px;
  --radius-sm: 6px;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

body{
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}

img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight:600;
  line-height:1.12;
  letter-spacing:-0.02em;
  color: var(--ink);
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--blueprint);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:16px; height:1px;
  background:var(--blueprint);
  display:inline-block;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:14.5px;
  padding:12px 22px;
  border-radius:8px;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .15s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--ink);
  color:#fff;
}
.btn-primary:hover{background:var(--blueprint);}
.btn-secondary{
  background:transparent;
  color:var(--ink);
  border-color:var(--line-strong);
}
.btn-secondary:hover{border-color:var(--ink); background:var(--mist);}
.btn-amber{
  background:var(--signal);
  color:#3A2600;
}
.btn-amber:hover{filter:brightness(1.05);}
.btn-ghost{
  color:var(--blueprint);
  font-weight:600;
  font-size:14.5px;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.btn-ghost:hover{gap:9px;}
.btn-sm{padding:9px 16px; font-size:13.5px;}

/* ---------- Nav ---------- */
.nav{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:17px;
  letter-spacing:-0.01em;
}
.brand-mark{
  width:30px; height:30px;
  border-radius:7px;
  background:var(--ink);
  display:flex; align-items:center; justify-content:center;
  position:relative;
  flex-shrink:0;
}
.brand-mark svg{width:16px; height:16px;}
.brand-sub{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--muted-2);
  font-weight:400;
  letter-spacing:0.02em;
  margin-left:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-links a{
  font-size:14.5px;
  font-weight:500;
  color:var(--muted);
  transition:color .15s;
  position:relative;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.active{color:var(--ink);}
.nav-links a.active::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-23px;
  height:2px; background:var(--blueprint);
}
.nav-cta{display:flex; align-items:center; gap:14px;}
.nav-toggle{display:none; background:none; border:none; cursor:pointer;}

@media (max-width: 900px){
  .nav-links{
    position:fixed; top:68px; left:0; right:0; bottom:0;
    background:#fff; flex-direction:column; align-items:flex-start;
    padding:24px 28px; gap:22px; overflow-y:auto;
    transform:translateX(100%); transition:transform .25s ease;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a.active::after{display:none;}
  .nav-cta .btn-secondary{display:none;}
  .nav-toggle{display:block;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:96px 0 84px;
  overflow:hidden;
  background:var(--paper);
}
.hero-schematic{
  position:absolute;
  inset:0;
  z-index:0;
  opacity:0.9;
}
.hero-inner{
  position:relative;
  z-index:1;
  max-width:760px;
}
.hero h1{
  font-size:clamp(38px, 5.4vw, 62px);
  margin-bottom:22px;
}
.hero p.lead{
  font-size:19px;
  color:var(--muted);
  max-width:600px;
  margin-bottom:34px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-note{
  margin-top:28px;
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--muted-2);
  letter-spacing:0.02em;
}

/* ---------- Sections ---------- */
section{padding:96px 0;}
.section-alt{background:var(--mist);}
.section-dark{background:var(--ink); color:#fff;}
.section-dark .muted{color:#9AA6B3;}
.section-head{
  max-width:640px;
  margin-bottom:56px;
}
.section-head h2{
  font-size:clamp(28px, 3.4vw, 40px);
  margin-bottom:16px;
}
.section-head p{
  font-size:16.5px;
  color:var(--muted);
}
.section-dark .section-head p{color:#9AA6B3;}
.section-foot{
  margin-top:44px;
}

/* ---------- Grids & Cards ---------- */
.grid{display:grid; gap:20px;}
.grid-2{grid-template-columns:repeat(2, 1fr);}
.grid-3{grid-template-columns:repeat(3, 1fr);}
.grid-4{grid-template-columns:repeat(4, 1fr);}
@media (max-width:900px){
  .grid-2, .grid-3, .grid-4{grid-template-columns:1fr;}
}
@media (min-width:901px) and (max-width:1100px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  transition:border-color .15s, transform .15s;
}
.card:hover{border-color:var(--line-strong);}
.card h3{font-size:17.5px; margin-bottom:10px;}
.card p{color:var(--muted); font-size:14.5px;}
.card-icon{
  width:38px; height:38px;
  border-radius:8px;
  background:var(--blueprint-light);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px;
  color:var(--blueprint);
}
.card-icon svg{width:19px; height:19px;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:4px 10px;
  border-radius:100px;
  font-weight:500;
}
.badge-available{background:var(--ok-bg); color:var(--ok);}
.badge-available::before{content:""; width:6px; height:6px; border-radius:50%; background:var(--ok);}
.badge-soon{background:var(--mist-2); color:var(--muted);}
.badge-soon::before{content:""; width:6px; height:6px; border-radius:50%; background:var(--muted-2);}
.badge-blueprint{background:var(--blueprint-light); color:var(--blueprint);}

/* ---------- Module / list rows ---------- */
.module-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  gap:20px;
}
.module-row:first-child{border-top:1px solid var(--line);}
.module-left{display:flex; align-items:center; gap:16px;}
.module-index{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted-2);
  width:26px;
}
.module-title{font-family:var(--font-display); font-weight:600; font-size:17px;}
.module-desc{color:var(--muted); font-size:14px; margin-top:3px;}

/* ---------- Stats ---------- */
.stat-row{display:flex; gap:56px; flex-wrap:wrap;}
.stat-num{font-family:var(--font-display); font-size:36px; font-weight:700;}
.stat-label{font-family:var(--font-mono); font-size:12px; color:var(--muted-2); text-transform:uppercase; letter-spacing:0.05em; margin-top:6px;}

/* ---------- Logo strip ---------- */
.logo-strip{
  display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:32px;
  opacity:0.55;
}
.logo-strip span{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--muted);
  letter-spacing:0.03em;
}

/* ---------- Table (pricing / comparison) ---------- */
.compare-table{width:100%; border-collapse:collapse; font-size:14.5px;}
.compare-table th, .compare-table td{
  text-align:left; padding:14px 16px; border-bottom:1px solid var(--line);
}
.compare-table th{font-family:var(--font-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:0.05em; color:var(--muted-2); font-weight:500;}

/* ---------- Pricing cards ---------- */
.price-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:32px 28px; display:flex; flex-direction:column;
}
.price-card.featured{
  border-color:var(--ink); box-shadow:0 0 0 1px var(--ink);
}
.price-plan{font-family:var(--font-mono); font-size:12px; text-transform:uppercase; letter-spacing:0.06em; color:var(--muted-2); margin-bottom:10px;}
.price-value{font-family:var(--font-display); font-size:28px; font-weight:700; margin-bottom:6px;}
.price-value span{font-size:14px; font-weight:400; color:var(--muted); font-family:var(--font-body);}
.price-desc{color:var(--muted); font-size:14px; margin-bottom:22px;}
.price-feat{margin:22px 0; display:flex; flex-direction:column; gap:10px;}
.price-feat li{display:flex; gap:10px; font-size:14px; color:var(--ink);}
.price-feat li svg{flex-shrink:0; margin-top:3px; width:14px; height:14px; color:var(--ok);}

/* ---------- Footer ---------- */
footer{
  background:var(--ink);
  color:#C7CFD8;
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr repeat(4, 1fr);
  gap:32px;
  padding-bottom:48px;
  border-bottom:1px solid #1E2A3D;
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:repeat(2, 1fr);}
}
.footer-brand{font-family:var(--font-display); font-weight:700; font-size:17px; color:#fff; margin-bottom:12px;}
.footer-tag{font-size:13.5px; color:#8994A3; max-width:220px;}
.footer-col h4{
  font-family:var(--font-mono); font-size:11.5px; text-transform:uppercase;
  letter-spacing:0.06em; color:#8994A3; font-weight:500; margin-bottom:16px;
}
.footer-col a{
  display:block; font-size:14px; color:#C7CFD8; margin-bottom:11px; transition:color .15s;
}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top:24px; font-size:13px; color:#6B7787; flex-wrap:wrap; gap:12px;
}

/* ---------- Misc ---------- */
.divider{height:1px; background:var(--line); margin:0;}
.pill-row{display:flex; gap:10px; flex-wrap:wrap;}
.pill{
  font-family:var(--font-mono); font-size:12.5px;
  border:1px solid var(--line-strong); border-radius:100px;
  padding:7px 14px; color:var(--muted);
}
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center;}
@media (max-width:900px){.two-col{grid-template-columns:1fr; gap:32px;}}

.tag-nav{
  display:flex; gap:8px; flex-wrap:wrap; margin-bottom:40px;
}
.tag-nav a{
  font-family:var(--font-mono); font-size:12.5px;
  padding:8px 14px; border:1px solid var(--line); border-radius:100px;
  color:var(--muted); transition:all .15s;
}
.tag-nav a:hover, .tag-nav a.active{background:var(--ink); color:#fff; border-color:var(--ink);}

.blog-card{border-bottom:1px solid var(--line); padding:28px 0; display:flex; gap:28px; justify-content:space-between;}
.blog-card:first-child{border-top:1px solid var(--line);}
.blog-meta{font-family:var(--font-mono); font-size:11.5px; color:var(--muted-2); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:8px;}
.blog-card h3{font-size:19px; margin-bottom:8px;}
.blog-card p{color:var(--muted); font-size:14.5px; max-width:560px;}

.cta-band{
  background:var(--ink);
  border-radius:16px;
  padding:64px 56px;
  display:flex; align-items:center; justify-content:space-between; gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{color:#fff; font-size:30px; margin-bottom:8px;}
.cta-band p{color:#9AA6B3; font-size:15.5px;}

.check-list{display:flex; flex-direction:column; gap:14px;}
.check-list li{display:flex; gap:12px; font-size:15px; align-items:flex-start;}
.check-list li svg{flex-shrink:0; margin-top:3px; color:var(--ok);}

.industry-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:30px; background:#fff;
}
.industry-card .eyebrow{margin-bottom:8px;}
.industry-card h3{font-size:20px; margin-bottom:12px;}
.industry-problem{font-size:14px; color:var(--muted); margin-bottom:16px;}
.industry-list{display:flex; flex-direction:column; gap:8px;}
.industry-list li{font-size:13.5px; display:flex; gap:8px; color:var(--ink);}
.industry-list li::before{content:"—"; color:var(--muted-2);}

.page-hero{padding:64px 0 56px; border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(32px, 4.2vw, 46px); margin-bottom:16px;}
.page-hero p{font-size:17px; color:var(--muted); max-width:600px;}

.integration-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:24px;
  display:flex; flex-direction:column; gap:10px; background:#fff;
}
.integration-cat{font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:0.06em; color:var(--muted-2);}
.integration-card h3{font-size:16px;}
.integration-card p{font-size:13px; color:var(--muted);}

.mono{font-family:var(--font-mono);}
.muted{color:var(--muted);}
.center{text-align:center; margin-left:auto; margin-right:auto;}

.reveal{opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease;}
.reveal.in-view{opacity:1; transform:translateY(0);}

/* ---------- Hero schematic animation ---------- */
.schematic-line{
  stroke:var(--line-strong);
  stroke-width:1.4;
  fill:none;
}
.schematic-flow{
  stroke:var(--blueprint);
  stroke-width:1.6;
  fill:none;
  stroke-dasharray:6 10;
  animation:flowDash 3.2s linear infinite;
  opacity:0.55;
}
.schematic-flow.slow{animation-duration:5.5s; opacity:0.35;}
.schematic-flow.amber{stroke:var(--signal); animation-duration:4.2s; opacity:0.6;}
@keyframes flowDash{
  to{stroke-dashoffset:-160;}
}
.schematic-node{fill:#fff; stroke:var(--blueprint); stroke-width:1.6;}
.schematic-node.amber{stroke:var(--signal);}
.schematic-dot{fill:var(--blueprint);}
.schematic-pulse{
  fill:var(--signal);
  animation:pulseFade 2.4s ease-in-out infinite;
}
@keyframes pulseFade{
  0%,100%{opacity:0.25; r:3;}
  50%{opacity:0.9; r:5;}
}

@media (max-width:640px){
  section{padding:64px 0;}
  .cta-band{padding:40px 28px; flex-direction:column; align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
}