/* ==========================================================================
   VOLTRA — Design tokens
   ========================================================================== */
:root{
  --bg: #07070a;
  --bg-alt: #0c0c12;
  --surface: #101018;
  --surface-2: #14141e;
  --border: rgba(255,255,255,0.08);
  --text: #f2f3f7;
  --text-dim: #9a9aab;
  --text-dimmer: #6b6b7d;

  --blue: #3f8cff;
  --blue-light: #7ecbff;
  --blue-deep: #1a4fd1;
  --chrome-1: #eef2f8;
  --chrome-2: #97a4b8;

  --grad-brand: linear-gradient(135deg, var(--blue-light) 0%, var(--blue) 55%, var(--blue-deep) 100%);
  --grad-brand-soft: linear-gradient(135deg, rgba(63,140,255,.18), rgba(26,79,209,.18));
  --grad-text: linear-gradient(90deg, var(--blue-light) 0%, var(--blue-deep) 100%);

  --shadow-glow: 0 0 40px rgba(63,140,255,.28), 0 0 80px rgba(26,79,209,.16);
  --radius: 18px;
  --radius-sm: 10px;

  --ff-display: 'Orbitron', sans-serif;
  --ff-heading: 'Rajdhani', sans-serif;
  --ff-body: 'Inter', sans-serif;

  --container: 1220px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
html, body{ background: var(--bg); }

body{
  margin: 0;
  font-family: var(--ff-body);
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

img, svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ margin:0; font-family: var(--ff-heading); font-weight:700; letter-spacing: .01em; }
p{ margin:0; color: var(--text-dim); line-height:1.65; }

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

.grad-text{
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ==========================================================================
   Background texture
   ========================================================================== */
.grain{
  position: fixed; inset: 0; z-index: 2; pointer-events: none;
  opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.cursor-glow{
  position: fixed; top:0; left:0; width: 480px; height: 480px; z-index: 1;
  border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(63,140,255,.10), rgba(26,79,209,.05) 45%, transparent 70%);
  transform: translate(-50%,-50%);
  transition: opacity .3s ease;
  opacity: 0;
}
@media (pointer: fine){ .cursor-glow{ opacity: 1; } }

/* ==========================================================================
   Loader
   ========================================================================== */
.loader{
  position: fixed; inset:0; z-index: 999; background: var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition: opacity .6s ease, visibility .6s ease;
}
.loader.is-hidden{ opacity:0; visibility:hidden; }
.loader-logo circle{ animation: spin 1.1s linear infinite; transform-origin: center; }
@keyframes spin{ to{ transform: rotate(360deg); } }

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display: inline-flex; align-items:center; gap:8px;
  font-family: var(--ff-heading); font-weight:700; font-size: .95rem; letter-spacing:.03em;
  padding: 13px 26px; border-radius: 999px; white-space: nowrap;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  cursor: pointer; border: 1px solid transparent;
}
.btn .arrow{ transition: transform .25s ease; }
.btn:hover .arrow{ transform: translateX(4px); }

.btn-primary{
  background: var(--grad-brand); color: #0a0a0d;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 0 55px rgba(63,140,255,.4), 0 0 90px rgba(26,79,209,.25); }

.btn-outline{
  background: transparent; color: var(--text); border-color: var(--border);
  backdrop-filter: blur(6px);
}
.btn-outline:hover{ border-color: rgba(63,140,255,.5); background: rgba(63,140,255,.06); transform: translateY(-2px); }

.btn-glow{
  position: relative; color: var(--text); background: var(--surface);
  border: 1px solid transparent; background-clip: padding-box;
}
.btn-glow::before{
  content:''; position:absolute; inset:-1.5px; border-radius: inherit; z-index:-1;
  background: var(--grad-brand); opacity:.9;
}
.btn-glow:hover{ transform: translateY(-2px); }

.btn-ghost{ color: var(--text-dim); padding: 13px 12px; }
.btn-ghost:hover{ color: var(--text); }

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar{
  position: fixed; top:0; left:0; right:0; z-index: 100;
  padding: 18px 0;
  transition: padding .35s ease, background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
  border-bottom: 1px solid transparent;
}
.navbar.is-scrolled{
  padding: 12px 0;
  background: rgba(7,7,10,.72);
  backdrop-filter: blur(16px) saturate(140%);
  border-color: var(--border);
}
.navbar-inner{ display:flex; align-items:center; justify-content:space-between; gap: 24px; }

.brand{ display:flex; align-items:center; gap:10px; }
.brand-word{
  font-family: var(--ff-display); font-weight:900; font-size: 1.15rem; letter-spacing: .12em;
  background: linear-gradient(90deg, #fff, #cfd6e6 60%, #9fb4d6);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

.nav-links{ display:flex; align-items:center; gap: 30px; }
.nav-links a{
  font-family: var(--ff-heading); font-weight:600; font-size:.95rem; color: var(--text-dim);
  letter-spacing:.02em; position:relative; padding: 4px 0;
  transition: color .25s ease;
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px;
  background: var(--grad-brand); transition: width .3s ease;
}
.nav-links a:hover{ color: var(--text); }
.nav-links a:hover::after{ width:100%; }

.nav-actions{ display:flex; align-items:center; gap: 10px; }
.nav-toggle{
  display:none; position: relative; z-index: 101; width: 40px; height:40px; border-radius:10px; border:1px solid var(--border);
  background: var(--surface); flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav-toggle span{ width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position: relative; min-height: 100svh; display:flex; align-items:center;
  overflow: hidden; padding-top: 90px;
  background: radial-gradient(120% 90% at 50% 0%, #14121a 0%, #07070a 55%);
}
.hero-canvas{ position:absolute; inset:0; width:100%; height:100%; display:block; z-index: 0; }
.hero-fallback{
  position:absolute; inset:0; z-index:0; display:none;
  background:
    radial-gradient(60% 50% at 75% 60%, rgba(26,79,209,.18), transparent 70%),
    radial-gradient(50% 40% at 25% 70%, rgba(63,140,255,.16), transparent 70%);
}
.hero-vignette{
  position:absolute; inset:0; z-index:1; pointer-events:none;
  background: linear-gradient(180deg, rgba(7,7,10,.15) 0%, rgba(7,7,10,0) 30%, rgba(7,7,10,.55) 78%, var(--bg) 100%);
}
.hero-grid-overlay{
  position:absolute; inset:0; z-index:1; pointer-events:none; opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(80% 60% at 50% 40%, black 30%, transparent 85%);
}

.hero-content{ position: relative; z-index: 3; }

.hero-tag{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--ff-heading); font-weight:600; font-size:.82rem; letter-spacing:.08em; text-transform:uppercase;
  color: var(--text-dim); padding: 7px 14px; border-radius: 999px;
  border:1px solid var(--border); background: rgba(255,255,255,.03);
  margin-bottom: 22px;
}
.hero-tag .dot{ width:7px; height:7px; border-radius:50%; background: var(--grad-brand); box-shadow: 0 0 10px var(--blue); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{ opacity:1; transform:scale(1);} 50%{ opacity:.5; transform:scale(1.3);} }

.hero-title{
  font-family: var(--ff-display); font-weight:900; text-transform:uppercase;
  font-size: clamp(2.4rem, 5.4vw, 3.9rem); line-height: 1.04; letter-spacing: .01em;
  margin-bottom: 22px;
}
.hero-title .line{ display:block; }

.hero-subtitle{ font-size: 1.08rem; max-width: 460px; margin-bottom: 34px; }

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

.hero-stats{ display:flex; align-items:center; gap: 26px; flex-wrap: wrap; }
.stat{ display:flex; flex-direction:column; }
.stat-num, .stat-suffix{ font-family: var(--ff-display); font-weight:700; font-size: 1.7rem; color:#fff; display:inline-block; }
.stat-suffix{ font-size:1.1rem; margin-left:2px; }
.stat-label{ font-size:.78rem; color: var(--text-dimmer); text-transform:uppercase; letter-spacing:.06em; margin-top:2px; }
.stat-sep{ width:1px; height: 34px; background: var(--border); }

.scroll-cue{
  position:absolute; bottom: 34px; left:50%; transform: translateX(-50%); z-index:3;
  width: 26px; height: 42px; border: 2px solid var(--border); border-radius: 20px;
}
.scroll-cue span{
  position:absolute; top:7px; left:50%; width:4px; height:8px; border-radius:2px;
  background: var(--grad-brand); transform: translateX(-50%);
  animation: scrollcue 1.6s ease-in-out infinite;
}
@keyframes scrollcue{ 0%{ opacity:1; top:7px;} 70%{opacity:0;} 100%{ top:22px; opacity:0; } }

/* ==========================================================================
   Marquee
   ========================================================================== */
.marquee{
  position:relative; z-index:2; background: var(--surface); border-top:1px solid var(--border); border-bottom:1px solid var(--border);
  overflow:hidden; padding: 14px 0;
}
.marquee-track{
  display:flex; width:max-content; gap: 18px;
  animation: marquee 26s linear infinite;
}
.marquee-track span{
  font-family: var(--ff-heading); font-weight:700; font-size:.85rem; letter-spacing:.12em;
  color: var(--text-dimmer); white-space:nowrap;
}
.marquee-track span:nth-child(2n){ color: var(--blue); }
@keyframes marquee{ from{ transform: translateX(0);} to{ transform: translateX(-50%);} }

/* ==========================================================================
   Sections
   ========================================================================== */
.section{ position: relative; padding: 120px 0; }
.section-alt{ background: var(--bg-alt); }

.section-head{ max-width: 620px; margin-bottom: 56px; }
.eyebrow{
  display:inline-block; font-family: var(--ff-heading); font-weight:700; font-size:.82rem;
  letter-spacing:.12em; text-transform:uppercase; color: var(--blue); margin-bottom: 14px;
}
.section-head h2{ font-size: clamp(1.8rem, 3.4vw, 2.6rem); margin-bottom: 14px; text-transform:uppercase; }
.section-head p{ font-size: 1.05rem; }

/* ==========================================================================
   Fleet
   ========================================================================== */
.fleet-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.fleet-card{
  position:relative; overflow:hidden; padding: 40px 36px; border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border);
  transition: transform .4s ease, border-color .4s ease;
}
.fleet-card:hover{ transform: translateY(-6px); border-color: rgba(63,140,255,.35); }
.fleet-glow{
  position:absolute; width: 260px; height: 260px; border-radius:50%; filter: blur(70px); z-index:0;
  top:-90px; right:-70px; opacity:.35;
}
.fleet-glow--a{ background: var(--blue); }
.fleet-glow--b{ background: var(--blue-deep); top:auto; bottom:-90px; right:auto; left:-70px; }

.fleet-icon{
  position:relative; z-index:1; width: 84px; height:84px; border-radius: 20px; margin-bottom: 26px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,255,255,.03); border: 1px solid var(--border);
  color: var(--blue);
}
.fleet-card:nth-child(2) .fleet-icon{ color: var(--blue-light); }

.fleet-card h3{ position:relative; z-index:1; font-size: 1.5rem; text-transform:uppercase; margin-bottom: 12px; }
.fleet-card > p{ position:relative; z-index:1; margin-bottom: 24px; max-width: 420px; }

.fleet-specs{ position:relative; z-index:1; display:flex; flex-direction:column; gap:10px; margin-bottom: 26px; padding-top: 18px; border-top: 1px solid var(--border); }
.fleet-specs li{ display:flex; justify-content:space-between; font-family: var(--ff-heading); font-size:.92rem; }
.fleet-specs li span{ color: var(--text-dimmer); }
.fleet-specs li b{ color: var(--text); font-weight:700; }

.link-cta{
  position:relative; z-index:1; display:inline-flex; align-items:center; gap:8px;
  font-family: var(--ff-heading); font-weight:700; font-size:.95rem;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color:transparent;
}
.link-cta .arrow{ color: var(--blue); transition: transform .25s ease; }
.link-cta:hover .arrow{ transform: translateX(5px); }

/* ==========================================================================
   Steps
   ========================================================================== */
.steps{ display:flex; align-items:flex-start; gap: 0; }
.step{ flex:1; min-width:0; }
.step-num{
  font-family: var(--ff-display); font-weight:900; font-size: 2.2rem;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color:transparent;
  margin-bottom: 14px;
}
.step h3{ font-size: 1.3rem; text-transform:uppercase; margin-bottom: 10px; }
.step p{ font-size:.98rem; max-width: 280px; }
.step-line{ height:1px; background: linear-gradient(90deg, var(--border), var(--border)); flex:0 0 40px; margin-top: 20px; }

/* ==========================================================================
   Impact
   ========================================================================== */
.impact-grid{ display:grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items:center; }
.impact-text h2{ font-size: clamp(1.8rem,3.2vw,2.5rem); margin: 14px 0 18px; text-transform:uppercase; }
.impact-text > p{ margin-bottom: 28px; font-size: 1.02rem; max-width: 460px; }

.impact-cards{ display:grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.impact-card{
  min-width: 0;
  padding: 28px 24px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface);
  display:flex; flex-direction:column;
}
.impact-num, .impact-suffix{
  font-family: var(--ff-display); font-weight:700; font-size: 2.1rem;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color:transparent;
  display:inline-block;
}
.impact-suffix{ font-size:1.3rem; }
.impact-label{ margin-top:8px; font-size:.85rem; color: var(--text-dimmer); text-transform:uppercase; letter-spacing:.05em; }

/* ==========================================================================
   CTA final
   ========================================================================== */
.cta-final{
  position:relative; padding: 130px 0; text-align:center; overflow:hidden;
  background: radial-gradient(70% 100% at 50% 100%, rgba(63,140,255,.16), transparent 60%), var(--bg-alt);
  border-top: 1px solid var(--border);
}
.cta-final-inner{ max-width: 620px; margin: 0 auto; }
.cta-final h2{ font-size: clamp(2rem, 4vw, 3rem); text-transform:uppercase; margin-bottom: 18px; }
.cta-final p{ font-size: 1.08rem; margin-bottom: 36px; }
.cta-final .hero-actions{ justify-content:center; margin-bottom:0; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer{ padding: 50px 0 26px; background: var(--bg); border-top: 1px solid var(--border); }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap: 24px; padding-bottom: 30px; }
.footer-links{ display:flex; gap: 24px; flex-wrap:wrap; }
.footer-links a{ font-family: var(--ff-heading); font-weight:600; font-size:.9rem; color: var(--text-dim); }
.footer-links a:hover{ color: var(--text); }
.footer-social{ display:flex; gap: 10px; }
.footer-social a{
  width: 36px; height:36px; border-radius:50%; border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center; font-size:.72rem; font-weight:700; color: var(--text-dim);
  transition: border-color .25s ease, color .25s ease;
}
.footer-social a:hover{ border-color: var(--blue); color: var(--blue); }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap: 8px;
  padding-top: 22px; border-top: 1px solid var(--border);
  font-size: .8rem; color: var(--text-dimmer);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .fleet-grid{ grid-template-columns: 1fr; }
  .impact-grid{ grid-template-columns: 1fr; gap: 40px; }
  .steps{ flex-direction:column; gap: 34px; }
  .step-line{ display:none; }
}

@media (max-width: 860px){
  .nav-links{
    position:fixed; top: 0; right: 0; height:100vh; width: min(320px, 80vw);
    background: rgba(10,10,14,.98); backdrop-filter: blur(16px);
    flex-direction:column; align-items:flex-start; justify-content:center; gap: 28px;
    padding: 40px; transform: translateX(100%); transition: transform .4s cubic-bezier(.16,1,.3,1);
    border-left: 1px solid var(--border); z-index: 99;
  }
  .nav-links.is-open{ transform: translateX(0); }
  .nav-links a{ font-size: 1.2rem; }
  .nav-toggle{ display:flex; }
  .nav-actions .btn-glow{ display:none; }
}

@media (max-width: 640px){
  .container{ padding: 0 20px; }
  .hero{ padding-top: 110px; }
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .hero-actions .btn{ justify-content:center; }
  .hero-stats{ gap: 18px; }
  .impact-cards{ grid-template-columns: 1fr 1fr; gap: 14px; }
  .impact-card{ padding: 20px 14px; }
  .impact-num, .impact-suffix{ font-size: 1.25rem; }
  .footer-inner{ flex-direction:column; align-items:flex-start; }
  .cursor-glow{ display:none; }
}