/* =========================================================
   NAVI AGI — Design tokens
   ========================================================= */
:root{
  --bg: #000000;
  --bg-secondary: #0a0a0b;
  --bg-elevated: #131314;
  --border: #232325;
  --border-soft: #1a1a1c;

  --text-primary: #f5f5f6;
  --text-secondary: #9a9a9f;
  --text-tertiary: #5c5c60;

  --silver-1: #eceef0;
  --silver-2: #8c8c92;
  --glow: rgba(190, 205, 220, 0.55);

  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-label: "Manrope", sans-serif;

  --container: 1180px;
  --radius: 14px;
  --radius-sm: 8px;

  --ease: cubic-bezier(.16,.84,.44,1);
}

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

body{
  margin:0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ list-style:none; margin:0; padding:0; }

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

:focus-visible{
  outline: 1.5px solid var(--silver-1);
  outline-offset: 3px;
  border-radius: 4px;
}

/* =========================================================
   Typography helpers
   ========================================================= */
.eyebrow{
  font-family: var(--font-label);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin: 0 0 18px;
}

.section-title{
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  max-width: 720px;
}

.section-sub{
  font-size: 16.5px;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 0 48px;
}

.lede{
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 500;
  color: var(--silver-1);
  max-width: 760px;
  line-height: 1.4;
  margin: 0 0 56px;
}

.text-gradient{
  background: linear-gradient(100deg, var(--silver-1) 10%, var(--silver-2) 55%, var(--silver-1) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(0,0,0,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}

.progress-rail{
  height: 2px;
  width: 100%;
  background: transparent;
}
.progress-fill{
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--silver-2), var(--silver-1));
  transition: width 0.1s linear;
}

.nav{
  display:flex;
  align-items:center;
  justify-content: space-between;
  height: 68px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color: var(--text-primary);
}
.brand-mark{ color: var(--silver-1); display:flex; }
.brand-word{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.02em;
}
.brand-word-light{ color: var(--text-secondary); font-weight: 500; }

.nav-links{
  display:flex;
  align-items:center;
  gap: 30px;
}
.nav-links a{
  font-family: var(--font-label);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.2s var(--ease);
  position: relative;
}
.nav-links a:hover{ color: var(--text-primary); }
.nav-links a::after{
  content:"";
  position:absolute; left:0; bottom:-6px;
  width:0; height:1px;
  background: var(--silver-1);
  transition: width 0.25s var(--ease);
}
.nav-links a:hover::after{ width:100%; }

.nav-cta{
  color: var(--text-primary) !important;
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
}
.nav-cta::after{ display:none; }
.nav-cta:hover{ border-color: var(--silver-2); background: var(--bg-elevated); }

.nav-toggle{
  display:none;
  flex-direction: column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding: 8px;
}
.nav-toggle span{
  width: 20px; height: 1.5px;
  background: var(--text-primary);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.01em;
  padding: 13px 26px;
  border-radius: 999px;
  transition: all 0.25s var(--ease);
  border: 1px solid transparent;
}
.btn-primary{
  background: var(--silver-1);
  color: #08080a;
}
.btn-primary:hover{
  background: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(230,235,240,0.15);
}
.btn-ghost{
  border-color: var(--border);
  color: var(--text-primary);
}
.btn-ghost:hover{
  border-color: var(--silver-2);
  background: var(--bg-elevated);
}

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position: relative;
  min-height: 100vh;
  display:flex;
  align-items:center;
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 30% 30%, black 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 30% 30%, black 10%, transparent 75%);
}

.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items:center;
}

.hero-copy{ max-width: 620px; }

.hero-headline{
  font-family: var(--font-display);
  font-size: clamp(38px, 5.4vw, 64px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

.hero-sub{
  font-size: 17.5px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 0 36px;
}

.hero-actions{
  display:flex;
  gap: 14px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.hero-stats{
  display:flex;
  gap: 40px;
  border-top: 1px solid var(--border-soft);
  padding-top: 28px;
  flex-wrap: wrap;
}
.hero-stat{ display:flex; flex-direction:column; gap:4px; }
.hero-stat-num{
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--silver-1);
}
.hero-stat-label{
  font-family: var(--font-label);
  font-size: 12px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Bearing / compass signature element */
.hero-bearing{
  position: relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 18px;
}
.bearing-svg{ width: 100%; max-width: 460px; }
.ring{ fill:none; stroke: var(--border); stroke-width:1; }
.ring-outer{ stroke: var(--border); }
.ring-dim{ stroke: var(--border-soft); }
.ticks line{ stroke: var(--border); stroke-width: 1; }
.ticks line.major{ stroke: var(--silver-2); stroke-width: 1.4; }
.sweep-group{
  transform-origin: 240px 240px;
  animation: sweep 7s linear infinite;
}
@keyframes sweep{ to{ transform: rotate(360deg); } }

.blip{ fill: var(--silver-1); opacity:0; }
.blip-ring{ fill:none; stroke: var(--silver-1); opacity:0; }

.bearing-caption{
  font-family: var(--font-label);
  font-size: 12px;
  color: var(--text-tertiary);
  display:flex;
  align-items:center;
  gap:8px;
  letter-spacing: 0.04em;
}
.bearing-caption-dot{
  width:6px; height:6px; border-radius:50%;
  background: var(--silver-1);
  box-shadow: 0 0 8px var(--glow);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:0.35; } }

/* =========================================================
   Sections general
   ========================================================= */
.section{ padding: 120px 0; position: relative; }
.section + .section{ border-top: 1px solid var(--border-soft); }

/* =========================================================
   Story
   ========================================================= */
.story-split{
  display:grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.story-divider{ width:1px; background: var(--border-soft); }
.story-block{ display:flex; flex-direction:column; }
.story-word{
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(120deg, var(--silver-1), var(--silver-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.story-tag{
  font-family: var(--font-label);
  font-size: 13px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 8px 0 18px;
}
.story-block p{ color: var(--text-secondary); font-size: 15.5px; }
.story-close{
  max-width: 720px;
  font-size: 17px;
  color: var(--silver-1);
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.5;
}

/* =========================================================
   Vision
   ========================================================= */
.vision-headline{
  font-family: var(--font-display);
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 600;
  max-width: 760px;
  margin: 0 0 56px;
  color: var(--silver-1);
}
.vision-lines{ display:flex; flex-direction:column; }
.vision-line{
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 500;
  padding: 22px 0;
  border-top: 1px solid var(--border-soft);
  color: var(--text-secondary);
  transition: color 0.3s var(--ease), padding-left 0.3s var(--ease);
}
.vision-line:last-child{ border-bottom: 1px solid var(--border-soft); }
.vision-line:hover{ color: var(--text-primary); padding-left: 12px; }

/* =========================================================
   Capability grid
   ========================================================= */
.capability-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.capability-card{
  background: var(--bg);
  padding: 34px 30px;
  transition: background 0.3s var(--ease);
}
.capability-card:hover{ background: var(--bg-secondary); }
.capability-icon{
  width: 34px; height:34px;
  color: var(--silver-1);
  margin-bottom: 20px;
}
.capability-card h3{
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 10px;
}
.capability-card p{
  font-size: 14.5px;
  color: var(--text-secondary);
  margin:0;
}

/* =========================================================
   Difference rows
   ========================================================= */
.diff-rows{ display:flex; flex-direction:column; }
.diff-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--border-soft);
  align-items:center;
}
.diff-row:last-child{ border-bottom: 1px solid var(--border-soft); }
.diff-no{
  font-family: var(--font-label);
  font-size: 15px;
  color: var(--text-tertiary);
  text-decoration: line-through;
  text-decoration-color: var(--border);
}
.diff-yes{
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 500;
  color: var(--silver-1);
}

/* =========================================================
   Categories
   ========================================================= */
.category-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 56px;
}
.category-card{
  display:flex;
  align-items:center;
  gap: 12px;
  padding: 22px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 15px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.category-card:hover{ border-color: var(--silver-2); transform: translateY(-2px); }
.category-icon{ color: var(--silver-2); font-size: 14px; }

.milestone{ max-width: 620px; }
.milestone-top{
  display:flex; justify-content:space-between;
  font-family: var(--font-label);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.milestone-pct{ color: var(--silver-1); font-weight:700; }
.milestone-track{
  height: 4px;
  background: var(--border-soft);
  border-radius: 4px;
  overflow: hidden;
}
.milestone-fill{
  height:100%;
  width:0%;
  background: linear-gradient(90deg, var(--silver-2), var(--silver-1));
  transition: width 1.4s var(--ease);
}

/* =========================================================
   Roadmap
   ========================================================= */
.roadmap-timeline{
  display:flex;
  flex-direction:column;
}
.roadmap-phase{
  display:grid;
  grid-template-columns: 90px 1fr;
  gap: 28px;
  padding: 36px 0;
  border-top: 1px solid var(--border-soft);
}
.roadmap-phase:last-child{ border-bottom: 1px solid var(--border-soft); }
.roadmap-index{
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}
.roadmap-body h3{
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  margin: 0 0 10px;
}
.roadmap-body p{
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 680px;
  margin:0;
}

/* =========================================================
   Stack chips
   ========================================================= */
.stack-cloud{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
}
.stack-chip{
  font-family: var(--font-label);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 999px;
  transition: all 0.25s var(--ease);
}
.stack-chip:hover{
  color: var(--text-primary);
  border-color: var(--silver-2);
  background: var(--bg-elevated);
}

/* =========================================================
   Operations
   ========================================================= */
.ops-layout{
  display:grid;
  grid-template-columns: 1fr 1.4fr;
  grid-template-rows: auto auto;
  gap: 16px;
}
.ops-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  background: var(--bg-secondary);
}
.ops-icon{ width:30px; height:30px; color: var(--silver-1); margin-bottom: 18px; }
.ops-card h3{ font-family: var(--font-display); font-size: 18px; margin: 0 0 12px; }
.ops-card p{ color: var(--text-secondary); font-size: 14.5px; margin: 0 0 18px; }
.ops-phone{
  font-family: var(--font-label);
  font-weight: 700;
  color: var(--silver-1);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
}
.ops-map{ padding: 0; overflow:hidden; grid-row: span 1; }
.map-placeholder{ position:relative; }
.map-svg{ width:100%; height: 100%; display:block; }
.map-label{
  position:absolute; left:20px; bottom:16px;
  font-family: var(--font-label);
  font-size: 12px;
  color: var(--text-tertiary);
  background: rgba(0,0,0,0.6);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-soft);
}
.ops-icons-row{
  grid-column: 1 / -1;
  display:grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}
.mini-icon{
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 12px;
  display:flex; flex-direction:column; align-items:center; gap: 10px;
  color: var(--text-secondary);
  font-family: var(--font-label);
  font-size: 12px;
  transition: all 0.25s var(--ease);
}
.mini-icon svg{ width:22px; height:22px; }
.mini-icon:hover{ color: var(--text-primary); border-color: var(--silver-2); }

/* =========================================================
   Contact
   ========================================================= */
.contact-inner{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}
.contact-left .section-sub{ margin-bottom:0; }
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 32px;
  align-content: start;
}
.contact-item{ display:flex; flex-direction:column; gap:6px; }
.contact-label{
  font-family: var(--font-label);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
}
.contact-value{
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text-primary);
}
.contact-value a:hover{ color: var(--silver-1); }
.contact-social{ display:flex; gap: 16px; }
.contact-social a{
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  border-top: 1px solid var(--border-soft);
  padding: 44px 0;
}
.footer-inner{
  display:flex;
  justify-content: space-between;
  align-items:center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand{ display:flex; align-items:center; gap: 12px; color: var(--silver-1); }
.footer-title{ font-family: var(--font-display); font-weight:600; font-size:14px; margin:0; }
.footer-tag{ font-size:12.5px; color: var(--text-tertiary); margin: 2px 0 0; }
.footer-copy{ font-size: 12.5px; color: var(--text-tertiary); }

/* =========================================================
   Scroll reveal
   ========================================================= */
.reveal{
  opacity:0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible{
  opacity:1;
  transform: translateY(0);
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-bearing{ order:-1; margin-bottom: 20px; }
  .bearing-svg{ max-width: 320px; }
  .capability-grid{ grid-template-columns: repeat(2,1fr); }
  .category-grid{ grid-template-columns: repeat(2,1fr); }
  .ops-layout{ grid-template-columns: 1fr; }
  .ops-icons-row{ grid-template-columns: repeat(3,1fr); }
  .contact-inner{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .nav-links{
    position: fixed;
    top: 69px; left:0; right:0;
    background: rgba(0,0,0,0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--border-soft);
    transform: translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  }
  .nav-links.is-open{ opacity:1; transform: translateY(0); pointer-events:auto; }
  .nav-toggle{ display:flex; }
  .nav-toggle.is-open span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2){ opacity:0; }
  .nav-toggle.is-open span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

  .story-split{ grid-template-columns: 1fr; }
  .story-divider{ width:100%; height:1px; }
  .capability-grid{ grid-template-columns: 1fr; }
  .category-grid{ grid-template-columns: 1fr; }
  .diff-row{ grid-template-columns: 1fr; gap: 6px; }
  .roadmap-phase{ grid-template-columns: 1fr; gap: 10px; }
  .ops-icons-row{ grid-template-columns: repeat(2,1fr); }
  .contact-grid{ grid-template-columns: 1fr; }
  .section{ padding: 84px 0; }
  .hero{ padding-top: 120px; }
}