:root {
  --ink: #07111f;
  --navy: #071321;
  --blue: #10213a;
  --muted: #667286;
  --line: rgba(11, 26, 46, .12);
  --cyan: #00c2cc;
  --green: #8cc63f;
  --orange: #f57b20;
  --gold: #f6b727;
  --soft: #f4f8fb;
  --shadow: 0 28px 90px rgba(5, 17, 31, .18);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: #fff; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.site-header { position: fixed; z-index: 30; inset: 18px clamp(16px, 4vw, 60px) auto; display: flex; align-items: center; justify-content: space-between; min-height: 72px; padding: 10px 14px 10px 18px; color: #fff; background: rgba(5, 14, 27, .72); border: 1px solid rgba(255,255,255,.16); border-radius: 8px; backdrop-filter: blur(22px); box-shadow: 0 20px 70px rgba(0,0,0,.24); }
.brand { display: flex; align-items: center; gap: 14px; font-weight: 950; white-space: nowrap; }
.logo-3d { position: relative; display: grid; place-items: center; width: 118px; height: 48px; transform-style: preserve-3d; perspective: 700px; animation: logoTilt 5.5s ease-in-out infinite; }
.logo-3d::before { content: ""; position: absolute; inset: -10px; z-index: -1; border-radius: 8px; background: radial-gradient(circle, rgba(0,194,204,.36), transparent 60%); filter: blur(14px); animation: logoAura 3.4s ease-in-out infinite; }
.logo-3d::after { content: ""; position: absolute; inset: 0; border-radius: 8px; background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,.58), transparent 64%); transform: translateX(-135%); mix-blend-mode: screen; animation: logoShine 4.3s ease-in-out infinite; }
.logo-3d img { width: 108px; height: 44px; object-fit: contain; filter: drop-shadow(0 16px 22px rgba(0,0,0,.38)); transform: translateZ(34px); }
.logo-3d i { position: absolute; width: 6px; height: 6px; border-radius: 2px; background: var(--gold); box-shadow: 0 0 16px currentColor; animation: spark 3.2s ease-in-out infinite; }
.logo-3d i:nth-child(2) { right: 4px; top: 4px; color: var(--gold); }
.logo-3d i:nth-child(3) { right: -7px; top: 20px; color: var(--cyan); animation-delay: .8s; }
.logo-3d i:nth-child(4) { right: 12px; bottom: 2px; color: var(--orange); animation-delay: 1.5s; }
.site-nav { display: flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 850; }
.site-nav a { padding: 12px 14px; border-radius: 8px; color: rgba(255,255,255,.82); }
.site-nav a:hover { background: rgba(255,255,255,.1); color: #fff; }
.nav-cta { color: #06111f !important; background: linear-gradient(135deg, var(--cyan), var(--green)); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; }
.nav-toggle span { display: block; height: 2px; margin: 6px; background: #fff; }

.hero { position: relative; min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 390px); align-items: end; gap: 36px; padding: 150px clamp(20px, 6vw, 88px) 70px; color: #fff; overflow: hidden; background: #050d19; }
.hero-image, .hero-overlay { position: absolute; inset: 0; }
.hero-image { background: url("assets/vvtech-hero-enterprise.png") center / cover; transform: scale(1.02); }
.hero-overlay { background: radial-gradient(circle at 78% 18%, rgba(0,194,204,.22), transparent 30%), linear-gradient(90deg, rgba(4,10,20,.96), rgba(5,13,25,.78) 46%, rgba(5,13,25,.44)); }
.hero-content, .hero-panel { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 13px; color: var(--orange); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 950; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { max-width: 850px; margin: 0; font-size: clamp(46px, 7vw, 90px); line-height: .94; letter-spacing: 0; }
h2 { margin: 0; font-size: clamp(31px, 4vw, 56px); line-height: 1.04; letter-spacing: 0; }
h3 { margin: 0 0 10px; font-size: 22px; line-height: 1.16; }
.hero-content p:not(.eyebrow) { max-width: 700px; color: rgba(255,255,255,.78); font-size: clamp(18px, 2vw, 22px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 13px 20px; border: 1px solid transparent; border-radius: 8px; font-weight: 950; cursor: pointer; }
.btn.primary { color: #06111f; background: linear-gradient(135deg, var(--cyan), var(--green)); }
.btn.ghost { color: #fff; border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.08); }
.hero-panel { align-self: center; padding: 24px; border-radius: 8px; border: 1px solid rgba(255,255,255,.16); background: rgba(7,18,32,.62); backdrop-filter: blur(18px); box-shadow: var(--shadow); }
.hero-panel span { color: var(--gold); font-size: 12px; font-weight: 950; text-transform: uppercase; letter-spacing: .14em; }
.hero-panel strong { display: block; margin-top: 8px; font-size: 28px; line-height: 1.05; }
.hero-panel ul { margin: 18px 0 0; padding-left: 18px; color: rgba(255,255,255,.74); }

.tech-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; padding: 18px clamp(18px, 5vw, 72px); background: #fff; border-bottom: 1px solid var(--line); }
.tech-strip span { padding: 10px 14px; border-radius: 8px; background: var(--soft); font-size: 13px; font-weight: 900; color: #24324a; }
.section, .slides-section { padding: clamp(76px, 9vw, 122px) clamp(18px, 5vw, 78px); }
.section-head { max-width: 840px; margin-bottom: 36px; }
.slides-section { color: #fff; background: linear-gradient(135deg, #071321, #142947); }
.slider { position: relative; min-height: 360px; max-width: 1080px; border-radius: 8px; overflow: hidden; background: radial-gradient(circle at 85% 20%, rgba(0,194,204,.28), transparent 28%), linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.03)); border: 1px solid rgba(255,255,255,.14); box-shadow: var(--shadow); }
.slide { position: absolute; inset: 0; display: grid; align-content: end; padding: clamp(28px, 5vw, 58px); opacity: 0; transform: translateX(36px); transition: opacity .55s ease, transform .55s ease; }
.slide.active { opacity: 1; transform: translateX(0); }
.slide span, .service-card span { width: max-content; padding: 7px 10px; border-radius: 8px; background: rgba(0,194,204,.14); color: var(--gold); font-weight: 950; }
.slide h3 { font-size: clamp(30px, 5vw, 58px); max-width: 720px; }
.slide p { max-width: 680px; color: rgba(255,255,255,.74); font-size: 18px; }
.slider-controls { position: absolute; left: clamp(28px, 5vw, 58px); bottom: 24px; display: flex; gap: 9px; }
.slide-dot { width: 42px; height: 4px; border: 0; border-radius: 99px; background: rgba(255,255,255,.28); cursor: pointer; }
.slide-dot.active { background: linear-gradient(90deg, var(--cyan), var(--green)); }

.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.service-card { min-height: 230px; display: flex; flex-direction: column; justify-content: space-between; padding: 26px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 18px 54px rgba(5,17,31,.08); }
.service-card p { margin: 0; color: var(--muted); }
.process { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 34px; align-items: center; padding: clamp(76px, 9vw, 122px) clamp(18px, 5vw, 78px); color: #fff; background: #071321; }
.process-copy p:not(.eyebrow) { color: rgba(255,255,255,.72); font-size: 18px; }
.process-steps { display: grid; gap: 14px; }
.process-steps div { padding: 22px; border-radius: 8px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.process-steps strong { display: block; margin-bottom: 6px; }
.process-steps span { color: rgba(255,255,255,.68); }
.industries { background: var(--soft); }
.industry-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.industry-grid span { min-height: 82px; display: flex; align-items: end; padding: 18px; color: #fff; font-weight: 900; border-radius: 8px; background: linear-gradient(135deg, #10213a, #1c3557); }
.industry-grid span:nth-child(3n) { background: linear-gradient(135deg, #07353c, #14535c); }
.industry-grid span:nth-child(4n) { background: linear-gradient(135deg, #3c210d, #814414); }
.about { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 34px; align-items: center; padding: clamp(76px, 9vw, 122px) clamp(18px, 5vw, 78px); }
.about-copy p:not(.eyebrow) { color: var(--muted); font-size: 18px; }
.value-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.value-grid span { padding: 20px; border: 1px solid var(--line); border-radius: 8px; font-weight: 900; background: #fff; box-shadow: 0 14px 40px rgba(5,17,31,.06); }
.contact { padding: clamp(76px, 9vw, 122px) clamp(18px, 5vw, 78px); background: #eef5f8; }
.contact-box { max-width: 1120px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 390px); gap: 28px; align-items: center; padding: clamp(28px, 5vw, 54px); border-radius: 8px; background: #fff; box-shadow: var(--shadow); }
.contact-box p:not(.eyebrow) { color: var(--muted); font-size: 18px; }
.contact-links { display: grid; gap: 12px; padding: 24px; color: #fff; border-radius: 8px; background: linear-gradient(135deg, #071321, #172b48); }
.contact-links a:not(.btn) { padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.82); font-weight: 850; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 30px clamp(18px, 5vw, 78px); color: #fff; background: #050b14; }
.site-footer div { display: grid; gap: 4px; }
.site-footer span { color: rgba(255,255,255,.62); }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes logoTilt { 0%,100% { transform: rotateY(-7deg) rotateX(3deg) translateY(0); } 50% { transform: rotateY(8deg) rotateX(-3deg) translateY(-3px); } }
@keyframes logoAura { 0%,100% { opacity: .45; transform: scale(.96); } 50% { opacity: .9; transform: scale(1.08); } }
@keyframes logoShine { 0%,42% { transform: translateX(-135%); opacity: 0; } 52% { opacity: .85; } 68%,100% { transform: translateX(135%); opacity: 0; } }
@keyframes spark { 0%,62%,100% { opacity: 0; transform: translate(0,0) scale(.4); } 74% { opacity: 1; transform: translate(8px,-8px) scale(1); } 86% { opacity: .2; transform: translate(14px,-15px) scale(.65); } }

@media (max-width: 980px) {
  .hero, .process, .about, .contact-box { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .industry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .site-header { inset: 10px 12px auto; min-height: 64px; }
  .brand span:last-child { font-size: 14px; }
  .logo-3d { width: 88px; height: 38px; }
  .logo-3d img { width: 82px; height: 34px; }
  .nav-toggle { display: block; }
  .site-nav { position: fixed; top: 84px; left: 12px; right: 12px; display: none; flex-direction: column; align-items: stretch; padding: 12px; background: rgba(5,14,27,.96); border: 1px solid rgba(255,255,255,.14); border-radius: 8px; }
  .site-nav.open { display: flex; }
  .hero { min-height: 900px; padding: 122px 18px 48px; }
  .hero-overlay { background: linear-gradient(180deg, rgba(4,10,20,.96), rgba(5,13,25,.78)); }
  .service-grid, .industry-grid, .value-grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; align-items: flex-start; }
}