/* ===========================
   LAYOUT (Nebula v2.1 Polish)
   Focus: navigation robustness + premium header spacing
=========================== */

:root{
  --header-h: 76px;
  --nav-pill-radius: 14px;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(2, 6, 23, .62);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148,163,184,.22);
}

html[data-theme="light"] .site-header{
  background: rgba(255,255,255,.76);
  border-bottom-color: rgba(148,163,184,.30);
}

.header-inner{
  height: var(--header-h);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
}

.logo, .brand{ justify-self: start; }
.site-nav, .main-nav{ justify-self: center; }
.header-actions{ justify-self: end; }

/* Brand */
.logo, .brand{
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}
.logo-mark, .logo-badge, .brand-mark{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #07101f;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  flex: 0 0 auto;
}
.logo-text, .brand-text{
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  line-height: 1.05;
}
.logo-title, .logo-text strong, .brand-title{
  font-weight: 850;
  letter-spacing: .2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.logo-subtitle, .logo-text span, .brand-subtitle{
  font-size: .82rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Desktop nav: single-line, scrollable if tight (no wrapping) */
.site-nav, .main-nav{
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;

  overflow-x: auto;
  overflow-y: visible;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.site-nav::-webkit-scrollbar,
.main-nav::-webkit-scrollbar{ display:none; }

.site-nav a,
.main-nav a{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--nav-pill-radius);
  color: var(--text-main);
  opacity: .86;
  font-weight: 650;
  font-size: .95rem;
  border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, opacity .18s ease;
  flex: 0 0 auto;
}
.site-nav a:hover,
.main-nav a:hover{
  opacity: 1;
  background: rgba(255,255,255,.06);
  transform: translateY(-1px);
}
html[data-theme="light"] .site-nav a:hover,
html[data-theme="light"] .main-nav a:hover{
  background: rgba(15,23,42,.06);
}

/* Nav icons (no HTML changes required) */
.site-nav a::before,
.main-nav a::before{
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: .92em;
  line-height: 1;
  opacity: .9;
}

/* Default: no icon */
.site-nav a::before,
.main-nav a::before{ content:""; }

/* Icon map (anchors and deep links) */
.site-nav a[href="#hero"]::before,
.site-nav a[href$="#hero"]::before,
.main-nav a[href="#hero"]::before,
.main-nav a[href$="#hero"]::before{ content:"\f015"; } /* home */

.site-nav a[href="#services"]::before,
.site-nav a[href$="#services"]::before,
.main-nav a[href="#services"]::before,
.main-nav a[href$="#services"]::before{ content:"\f0b1"; } /* briefcase */

.site-nav a[href="#msme-transformation"]::before,
.site-nav a[href$="#msme-transformation"]::before,
.main-nav a[href="#msme-transformation"]::before,
.main-nav a[href$="#msme-transformation"]::before{ content:"\f201"; } /* chart-line */

.site-nav a[href="#operations"]::before,
.site-nav a[href$="#operations"]::before,
.main-nav a[href="#operations"]::before,
.main-nav a[href$="#operations"]::before{ content:"\f085"; } /* gears */

.site-nav a[href="#ai-erp"]::before,
.site-nav a[href$="#ai-erp"]::before,
.main-nav a[href="#ai-erp"]::before,
.main-nav a[href$="#ai-erp"]::before{ content:"\f544"; } /* robot */

.site-nav a[href="#packages"]::before,
.site-nav a[href$="#packages"]::before,
.main-nav a[href="#packages"]::before,
.main-nav a[href$="#packages"]::before{ content:"\f02b"; } /* tag */

.site-nav a[href="#diagnostic"]::before,
.site-nav a[href$="#diagnostic"]::before,
.main-nav a[href="#diagnostic"]::before,
.main-nav a[href$="#diagnostic"]::before{ content:"\f0ae"; } /* tasks */

.site-nav a[href="#testimonials"]::before,
.site-nav a[href$="#testimonials"]::before,
.main-nav a[href="#testimonials"]::before,
.main-nav a[href$="#testimonials"]::before{ content:"\f4ad"; } /* comment-dots */

.site-nav a[href="#contact"]::before,
.site-nav a[href$="#contact"]::before,
.main-nav a[href="#contact"]::before,
.main-nav a[href$="#contact"]::before{ content:"\f0e0"; } /* envelope */

.main-nav a[href$="case-studies.html"]::before,
.site-nav a[href$="case-studies.html"]::before{ content:"\f02d"; } /* book */

/* Active state (ScrollSpy) */
.site-nav a.active,
.main-nav a.active{
  opacity: 1;
  background: rgba(56,189,248,.10);
  border-color: rgba(56,189,248,.22);
}

/* Desktop "More" dropdown (injected by JS when nav overflows) */
.nav-more{
  position: relative;
  flex: 0 0 auto;
}
.nav-more-btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--nav-pill-radius);
  color: var(--text-main);
  background: transparent;
  border: 1px solid transparent;
  font-weight: 650;
  font-size: .95rem;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, opacity .18s ease;
  opacity: .86;
}
.nav-more-btn:hover{
  opacity: 1;
  background: rgba(255,255,255,.06);
  transform: translateY(-1px);
}
html[data-theme="light"] .nav-more-btn:hover{ background: rgba(15,23,42,.06); }

.nav-dropdown{
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 260px;
  padding: 10px;
  border-radius: 16px;
  background: rgba(15,23,42,.92);
  border: 1px solid rgba(148,163,184,.22);
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 80px rgba(0,0,0,.45);
  display: grid;
  gap: 6px;

  opacity: 0;
  pointer-events: none;
  translate: 0 -10px;
  transition: .18s ease;
  z-index: 120;
}
html[data-theme="light"] .nav-dropdown{
  background: rgba(255,255,255,.96);
}

.nav-more.open .nav-dropdown{
  opacity: 1;
  pointer-events: auto;
  translate: 0 0;
}

.nav-dropdown a{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,.16);
  background: rgba(255,255,255,.04);
}
html[data-theme="light"] .nav-dropdown a{
  background: rgba(15,23,42,.04);
}

/* Scroll progress (injected by JS if missing) */
.site-header .scroll-progress{
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: rgba(148,163,184,.12);
  pointer-events: none;
}
.site-header .scroll-progress span{
  display:block;
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  box-shadow: 0 10px 30px rgba(56,189,248,.12);
  transition: width .12s linear;
}

/* Header actions */
.header-actions{
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

/* Premium CTA */
.header-actions .btn-primary,
.header-actions a.btn-primary{
  padding: 11px 14px;
  border-radius: 16px;
  box-shadow: 0 14px 40px rgba(0,0,0,.28);
}

/* Slightly compact header actions on mid-width screens */
@media (max-width: 1680px){
  .header-actions{ gap: 8px; }
  .header-actions a.btn{
    max-width: 210px;
    padding: 10px 12px;
    font-size: .90rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}


/* Force drawer navigation on all breakpoints when enabled via <html data-nav="drawer"> */
html[data-nav="drawer"] #nav-toggle,
html[data-nav="drawer"] #menu-toggle,
html[data-nav="drawer"] .menu-toggle,
html[data-nav="drawer"] .nav-toggle{
  display: inline-flex;
}

html[data-nav="drawer"] .nav-more{ display:none !important; }

html[data-nav="drawer"] .site-nav,
html[data-nav="drawer"] .main-nav{
  position: fixed;
  top: calc(var(--header-h) + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: min(720px, calc(100% - 24px));
  max-height: calc(100vh - (var(--header-h) + 28px));
  padding: 14px;
  border-radius: 18px;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;

  background: rgba(15,23,42,.88);
  border: 1px solid rgba(148,163,184,.22);
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 80px rgba(0,0,0,.45);

  overflow: auto;
  white-space: normal;

  opacity: 0;
  pointer-events: none;
  translate: 0 -12px;
  transition: .22s ease;
  z-index: 120;
}

html[data-nav="drawer"][data-theme="light"] .site-nav,
html[data-nav="drawer"][data-theme="light"] .main-nav{
  background: rgba(255,255,255,.92);
}

html[data-nav="drawer"] .site-nav.nav-open,
html[data-nav="drawer"] .main-nav.nav-open{
  opacity: 1;
  pointer-events: auto;
  translate: 0 0;
}

html[data-nav="drawer"] .site-nav a,
html[data-nav="drawer"] .main-nav a{
  padding: 12px 12px;
  border-radius: 14px;
}

/* Keep header CTAs visible even when nav is drawer */
html[data-nav="drawer"] .header-actions a.btn,
html[data-nav="drawer"] .header-actions button.btn{
  display: inline-flex;
}
/* Hide hamburger on desktop (mobile only) */
#nav-toggle, #menu-toggle, .menu-toggle, .nav-toggle{
  display: none;
}

/* Collapse nav into hamburger/overlay for tablets & mobile */
@media (max-width: 1200px){
  .nav-more{ display:none; }

  .logo, .brand{ min-width: 0; }

  /* Keep header compact: hide the long CTA button; it remains available inside the nav as “Diagnostic”. */
  .header-actions a.btn{ display:none; }

  #nav-toggle, #menu-toggle, .menu-toggle, .nav-toggle{
    display: inline-flex;
  }

  /* Overlay nav panel on mobile */
  .site-nav, .main-nav{
    position: fixed;
    top: calc(var(--header-h) + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: min(720px, calc(100% - 24px));
    max-height: calc(100vh - (var(--header-h) + 28px));
    padding: 14px;
    border-radius: 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;

    background: rgba(15,23,42,.88);
    border: 1px solid rgba(148,163,184,.22);
    backdrop-filter: blur(16px);
    box-shadow: 0 24px 80px rgba(0,0,0,.45);

    overflow: auto;
    white-space: normal;

    opacity: 0;
    pointer-events: none;
    translate: 0 -12px;
    transition: .22s ease;
  }

  html[data-theme="light"] .site-nav,
  html[data-theme="light"] .main-nav{
    background: rgba(255,255,255,.92);
  }

  .site-nav.nav-open,
  .main-nav.nav-open{
    opacity: 1;
    pointer-events: auto;
    translate: 0 0;
  }

  .site-nav a, .main-nav a{
    padding: 12px 12px;
    border-radius: 14px;
  }
}

body.nav-lock{ overflow: hidden; }

/* Hero */
.hero{
  padding-top: 54px;
  padding-bottom: 64px;
  background:
    radial-gradient(1000px 520px at 20% 0%, rgba(56,189,248,.12), transparent 60%),
    radial-gradient(860px 420px at 92% 12%, rgba(168,85,247,.12), transparent 55%);
}

.hero-grid{
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 34px;
  align-items: center;
}

@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
}

.hero h1{
  margin: 0 0 12px;
  font-size: clamp(2.05rem, 3.4vw, 3.0rem);
  line-height: 1.1;
  letter-spacing: -.03em;
}

.hero-subtitle{
  margin: 0 0 20px;
  color: var(--text-muted);
  max-width: 70ch;
}

/* Metrics: 3-up on desktop */
.hero-metrics{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
@media (max-width: 980px){
  .hero-metrics{ grid-template-columns: 1fr; }
}

/* Footer */
.site-footer{
  border-top: 1px solid rgba(148,163,184,.22);
  padding: 42px 0;
  background: var(--bg-body);
}