/* ==========================================================================
   M/S Alok S Kumar & Company — custom styles layered on top of Tailwind CDN.
   Tailwind handles layout/utility classes; this file covers glassmorphism,
   keyframe animations, scroll-reveal, and effects Tailwind can't express.
   ========================================================================== */

:root {
  --header-h-desktop: 88px;
  --header-h-desktop-shrunk: 64px;
  --header-h-mobile: 72px;
  --utility-h: 36px;
  --navy-950: #050b1a;
  --navy-900: #0a1630;
  --navy-800: #0f1f45;
  --navy-700: #16295c;
  --gold-300: #e9d38a;
  --gold-400: #d9b654;
  --gold-500: #c8a028;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
}

h1, h2, h3, h4, .font-heading {
  font-family: 'Poppins', 'Inter', system-ui, sans-serif;
}

/* Scroll offset so sticky header never covers a jumped-to section */
section[id] {
  scroll-margin-top: calc(var(--header-h-desktop) + var(--utility-h) + 12px);
}
@media (max-width: 1023px) {
  section[id] {
    scroll-margin-top: calc(var(--header-h-mobile) + 12px);
  }
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -3rem;
  z-index: 100;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0.5rem;
}

/* ---------- Visible focus rings everywhere ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--gold-400);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Header / glassmorphism ---------- */
#siteHeader {
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  background: rgba(10, 22, 48, 0.72);
  border-bottom: 1px solid rgba(217, 182, 84, 0.15);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
#siteHeader.is-scrolled {
  background: rgba(8, 17, 38, 0.9);
  box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.5);
}

#utilityBar {
  height: var(--utility-h);
  overflow: hidden;
  transition: height 0.3s ease, opacity 0.3s ease;
}
#siteHeader.is-scrolled #utilityBar {
  height: 0;
  opacity: 0;
}

#navMain {
  height: var(--header-h-desktop);
  transition: height 0.3s ease;
}
#siteHeader.is-scrolled #navMain {
  height: var(--header-h-desktop-shrunk);
}
@media (max-width: 1023px) {
  #navMain { height: var(--header-h-mobile); }
  #siteHeader.is-scrolled #navMain { height: var(--header-h-mobile); }
}

#logoMark {
  transition: transform 0.3s ease;
}
#siteHeader.is-scrolled #logoMark {
  transform: scale(0.88);
}

/* ---------- Scroll progress bar ---------- */
#scrollProgress {
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-300), var(--gold-500));
  transition: width 0.1s linear;
}

/* ---------- Nav underline hover ---------- */
.nav-link {
  position: relative;
  padding-bottom: 4px;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-300), var(--gold-500));
  transition: width 0.25s ease;
}
.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="location"]::after {
  width: 100%;
}
.nav-link[aria-current="location"] {
  color: var(--gold-300);
}

/* ---------- Mega dropdown ---------- */
#servicesDropdown {
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.has-dropdown.is-open #servicesDropdown,
#servicesDropdown:focus-within,
#servicesDropdown.force-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.has-dropdown:hover #servicesDropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- GST ticker ---------- */
#gstTicker {
  position: relative;
  overflow: hidden;
}
.ticker-item {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.ticker-item.is-active {
  position: relative;
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Mobile full-screen menu ---------- */
#mobileMenu {
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
#mobileMenu.is-open {
  transform: translateX(0);
}
#mobileMenu .mobile-link {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
#mobileMenu.is-open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}
#mobileMenu.is-open .mobile-link:nth-child(1) { transition-delay: 0.08s; }
#mobileMenu.is-open .mobile-link:nth-child(2) { transition-delay: 0.14s; }
#mobileMenu.is-open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobileMenu.is-open .mobile-link:nth-child(4) { transition-delay: 0.26s; }
#mobileMenu.is-open .mobile-link:nth-child(5) { transition-delay: 0.32s; }
#mobileMenu.is-open .mobile-link:nth-child(6) { transition-delay: 0.38s; }

/* ---------- Mobile bottom sticky action bar ---------- */
#mobileActionBar {
  padding-bottom: env(safe-area-inset-bottom, 0);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.06s; }
.reveal-delay-2 { transition-delay: 0.12s; }
.reveal-delay-3 { transition-delay: 0.18s; }
.reveal-delay-4 { transition-delay: 0.24s; }

/* ---------- WhatsApp float ---------- */
#whatsappFloat {
  animation: wa-pulse 2.4s ease-in-out infinite;
}
@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
  50% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
}

/* ---------- Hero background pattern ---------- */
.hero-grid-pattern {
  background-image:
    linear-gradient(rgba(217, 182, 84, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 182, 84, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ---------- Stat counter ---------- */
.stat-number {
  font-variant-numeric: tabular-nums;
}

/* ---------- Form field states ---------- */
.form-input.field-invalid {
  border-color: #dc2626;
}
.field-error {
  display: none;
}
.field-error.is-visible {
  display: block;
}

/* ---------- Utility: line clamp for card descriptions ---------- */
.clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   Reduced motion: strip animation/transition timing to near-instant
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  #whatsappFloat {
    animation: none;
  }
}