/* ── Reset & Tokens ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-bg: #05070f;
  --clr-surface: #0d1120;
  --clr-surface-2: #131929;
  --clr-border: rgba(255,255,255,.07);
  --clr-primary: #4f7dff;
  --clr-primary-glow: rgba(79,125,255,.25);
  --clr-accent: #00d4ff;
  --clr-text: #e2e8f0;
  --clr-muted: #94a3b8;
  --clr-heading: #f1f5f9;
  --radius: 16px;
  --radius-sm: 8px;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --transition: .25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Typography ── */
h1,h2,h3,h4 { font-family: var(--font-heading); color: var(--clr-heading); line-height: 1.2; }

.gradient-text {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Utilities ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }

.section-label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: rgba(79,125,255,.1);
  border: 1px solid rgba(79,125,255,.25);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-title { font-size: clamp(1.75rem, 4vw, 2.75rem); margin-bottom: 16px; }
.section-desc { color: var(--clr-muted); max-width: 560px; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .section-desc { margin: 0 auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-primary), #3a5fcc);
  color: #fff;
  box-shadow: 0 4px 20px var(--clr-primary-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--clr-primary-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn--ghost:hover {
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.04);
}

.btn--sm { padding: 8px 18px; font-size: .875rem; }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
  transition: background .3s, box-shadow .3s;
}

.nav.scrolled {
  background: rgba(5,7,15,.85);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav__inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--clr-heading);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
}
.nav__logo img { height: 64px; width: auto; object-fit: contain; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav__links a {
  color: var(--clr-muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: .9rem;
  transition: color var(--transition), background var(--transition);
}
.nav__links a:hover { color: var(--clr-heading); background: rgba(255,255,255,.04); }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(79,125,255,.12) 0%, transparent 70%);
  pointer-events: none;
}

.stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #fff;
  border-radius: 50%;
  animation: twinkle var(--duration, 3s) ease-in-out infinite var(--delay, 0s);
  opacity: 0;
}

@keyframes twinkle {
  0%,100% { opacity: 0; }
  50% { opacity: var(--max-opacity, .6); }
}

.hero__content { position: relative; z-index: 2; max-width: 760px; }

.hero__badge {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(0,212,255,.08);
  border: 1px solid rgba(0,212,255,.2);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero__title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--clr-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-indicator {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255,255,255,.2);
  border-radius: 12px;
  position: relative;
}
.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: rgba(255,255,255,.5);
  border-radius: 2px;
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { top: 6px; opacity: 1; }
  100% { top: 20px; opacity: 0; }
}

/* ── STATS ── */
.stats {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: 48px 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--clr-border);
}

.stat-card {
  background: var(--clr-surface);
  padding: 32px 24px;
  text-align: center;
}

.stat-card__number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--clr-heading);
  margin-bottom: 8px;
}
.stat-card__number span { color: var(--clr-primary); }
.stat-card__label { font-size: .85rem; color: var(--clr-muted); }

/* ── ABOUT ── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__text p { color: var(--clr-muted); margin-bottom: 16px; }

.orbit-ring {
  width: 340px;
  height: 340px;
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  position: relative;
  margin: 0 auto;
  animation: rotate 20s linear infinite;
}

.orbit-ring__inner {
  position: absolute;
  inset: 12%;
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: rotate 20s linear infinite reverse;
  background: radial-gradient(circle, rgba(79,125,255,.06) 0%, transparent 70%);
}

.orbit-logo {
  width: 160px;
  height: 160px;
  object-fit: contain;
}

@keyframes rotate { to { transform: rotate(360deg); } }

.orbit-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-primary);
  box-shadow: 0 0 12px var(--clr-primary);
}
.orbit-dot--1 { top: -5px; left: 50%; transform: translateX(-50%); }
.orbit-dot--2 {
  bottom: 15%;
  right: -5px;
  background: var(--clr-accent);
  box-shadow: 0 0 12px var(--clr-accent);
}
.orbit-dot--3 {
  bottom: 15%;
  left: -5px;
  background: #a78bfa;
  box-shadow: 0 0 12px #a78bfa;
}

/* ── PRODUCTS ── */
.products { background: var(--clr-surface); }

.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(79,125,255,.3);
  box-shadow: 0 16px 48px rgba(0,0,0,.4);
}

.product-card--featured {
  border-color: rgba(79,125,255,.35);
  background: linear-gradient(160deg, rgba(79,125,255,.08) 0%, var(--clr-surface-2) 60%);
}

.product-card__badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: rgba(79,125,255,.12);
  border: 1px solid rgba(79,125,255,.25);
  padding: 3px 10px;
  border-radius: 100px;
}

.product-card__icon {
  width: 56px;
  height: 56px;
  color: var(--clr-primary);
  margin-bottom: 20px;
  background: rgba(79,125,255,.08);
  border: 1px solid rgba(79,125,255,.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.product-card__tag {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 10px;
}

.product-card h3 { font-size: 1.2rem; margin-bottom: 14px; }
.product-card p { font-size: .9rem; color: var(--clr-muted); margin-bottom: 20px; }

.product-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product-card__features li {
  font-size: .85rem;
  color: var(--clr-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.product-card__features li::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-primary);
}

/* ── VISION ── */
.vision__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.vision__content p { color: var(--clr-muted); margin-bottom: 32px; }

.vision__pillars { display: flex; flex-direction: column; gap: 20px; }

.pillar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
}

.pillar__icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
.pillar strong { display: block; color: var(--clr-heading); margin-bottom: 4px; }
.pillar p { font-size: .875rem; color: var(--clr-muted); margin: 0; }

.vision__timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-top: 12px;
}

.timeline-item {
  display: flex;
  gap: 20px;
  position: relative;
  padding-bottom: 32px;
}

.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 16px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-primary), transparent);
}

.timeline-item__dot {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--clr-primary);
  box-shadow: 0 0 16px var(--clr-primary-glow);
  margin-top: 4px;
}

.timeline-item__phase {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 4px;
}

.timeline-item__content h4 { font-size: 1.05rem; margin-bottom: 6px; }
.timeline-item__content p { font-size: .875rem; color: var(--clr-muted); }

/* ── CONTACT ── */
.contact { background: var(--clr-surface); text-align: center; }

.contact__inner {
  max-width: 600px;
  margin: 0 auto;
}

.contact__inner .section-desc { margin: 0 auto 40px; }

/* ── FOOTER ── */
.footer {
  border-top: 1px solid var(--clr-border);
  padding: 32px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--clr-heading);
}
.footer__brand img { height: 28px; }
.footer__copy, .footer__tagline { font-size: .85rem; color: var(--clr-muted); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .products__grid { grid-template-columns: 1fr; }
  .about__grid, .vision__grid { grid-template-columns: 1fr; gap: 48px; }
  .orbit-ring { width: 260px; height: 260px; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 68px 0 0;
    background: rgba(5,7,15,.96);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 8px;
    align-items: stretch;
  }
  .nav__links.open a { font-size: 1.1rem; padding: 14px 16px; }
  .nav__burger { display: flex; }
  .footer__inner { flex-direction: column; text-align: center; }
}

/* ── Scroll-in animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible { opacity: 1; transform: none; }