/* ============================================================
   NexVanza — GLOBAL STYLES
   Shared by index.html and industries.html
   ============================================================ */

/* ── CSS VARIABLES ── */
:root {
  --dk-bg:        #080d1a;
  --dk-surface:   #0d1526;
  --dk-panel:     #111e35;
  --dk-card:      rgba(255,255,255,0.04);
  --dk-border:    rgba(255,255,255,0.08);
  --dk-text:      #e2e8f0;
  --dk-muted:     #94a3b8;
  --lt-bg:        #f0f4ff;
  --lt-surface:   #ffffff;
  --lt-border:    rgba(15,28,58,0.09);
  --lt-text:      #0f172a;
  --lt-muted:     #64748b;
  --orange:       #f97316;
  --orange-glow:  #fb923c;
  --orange-lt:    #fff4ec;
  --cyan:         #0ea5e9;
  --violet:       #7c3aed;
  --green:        #059669;
  --shadow-sm:    0 2px 12px rgba(0,0,0,0.25);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.35);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.45);
  --shadow-lt:    0 8px 32px rgba(15,28,58,0.12);
  --shadow-lt-lg: 0 20px 60px rgba(15,28,58,0.16);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--dk-bg); color: var(--dk-text); overflow-x: hidden; }

/* ============================================================
   NAV — DESKTOP
   ============================================================ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 52px; height: 68px;
  background: rgba(8,13,26,0.96); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dk-border); transition: box-shadow .3s;
}
.nav-logo {
  font-family: 'Rajdhani', sans-serif; font-size: 1.75rem; font-weight: 700;
  letter-spacing: 3px; color: #fff; text-decoration: none; z-index: 201;
}
.nav-logo span { color: var(--orange); }

.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a {
  font-size: .74rem; font-weight: 600; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--dk-muted); text-decoration: none; transition: color .2s;
}
.nav-links a:hover  { color: var(--cyan); }
.nav-links a.active { color: var(--orange); }

.nav-cta {
  background: var(--orange) !important; color: #fff !important;
  padding: 9px 24px !important; border-radius: 6px; font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(249,115,22,.4) !important; transition: all .2s !important;
}
.nav-cta:hover { background: var(--orange-glow) !important; transform: translateY(-1px) !important; }

/* ── HAMBURGER BUTTON ── */
.nav-hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  width: 40px; height: 40px; cursor: pointer; z-index: 201;
  background: none; border: none; padding: 4px; gap: 5px;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--dk-text); border-radius: 2px;
  transition: all .3s ease; transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE DRAWER ── */
.nav-mobile-drawer {
  display: none;
  position: fixed; top: 68px; left: 0; right: 0; z-index: 199;
  background: rgba(8,13,26,0.98); backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--dk-border);
  padding: 0; max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.nav-mobile-drawer.open { max-height: 400px; padding: 20px 0 28px; }

.nav-mobile-links { list-style: none; display: flex; flex-direction: column; padding: 0 28px; gap: 4px; }
.nav-mobile-links li a {
  display: block; padding: 13px 4px;
  font-size: .8rem; font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
  color: var(--dk-muted); text-decoration: none;
  border-bottom: 1px solid var(--dk-border); transition: color .2s;
}
.nav-mobile-links li:last-child a { border-bottom: none; }
.nav-mobile-links li a:hover  { color: var(--cyan); }
.nav-mobile-links li a.active { color: var(--orange); }

.nav-mobile-cta {
  display: block; margin: 18px 28px 0;
  background: var(--orange); color: #fff !important;
  padding: 13px 24px; border-radius: 6px;
  font-family: 'Rajdhani', sans-serif; font-size: .9rem; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase; text-decoration: none;
  text-align: center; transition: background .2s;
  box-shadow: 0 4px 16px rgba(249,115,22,.4);
}
.nav-mobile-cta:hover { background: var(--orange-glow) !important; }

/* ============================================================
   REVEAL ANIMATION  (shared scroll-in effect)
   ============================================================ */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE — NAV breakpoint
   ============================================================ */
@media (max-width: 900px) {
  nav { padding: 0 24px; }
  .nav-links        { display: none; }
  .nav-hamburger    { display: flex; }
  .nav-mobile-drawer{ display: block; }
}