/* =========================================
   SUDHIR BROTHERS — styles.css
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&display=swap');

/* ── CSS Variables ── */
:root {
  --navy:        #0d1b2e;
  --blue:        #586da6;
  --blue-dark:   #3d5490;
  --blue-light:  #7a8fbd;
  --blue-bg:     #586da6;   /* GPI section bg */
  --white:       #ffffff;
  --off-white:   #f7f8fa;
  --grey-light:  #eef0f3;
  --grey-mid:    #8a94a6;
  --grey-dark:   #3d4a5c;
  --text:        #1c2b3a;
  --font-display:'Barlow Condensed', sans-serif;
  --font-body:   'DM Sans', sans-serif;
  --shadow-sm:   0 2px 12px rgba(11,31,58,0.08);
  --shadow-md:   0 6px 30px rgba(11,31,58,0.14);
  --shadow-lg:   0 20px 60px rgba(11,31,58,0.18);
  --radius:      6px;
  --transition:  0.3s ease;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Utility ── */
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
  display: block;
  margin-bottom: 10px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  letter-spacing: 0.02em;
}
.btn-primary {
  background: var(--blue);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(88,109,166,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  transform: translateY(-2px);
}
.btn-white {
  background: var(--white);
  color: var(--blue);
}
.btn-white:hover {
  background: var(--off-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.25);
}

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ==============================
   NAVIGATION
   ============================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: 0 2px 20px rgba(11,31,58,0.10);
  transition: all var(--transition);
  /* needed so #mobile-nav (position:absolute) anchors below the bar */
  overflow: visible;
}
#navbar.scrolled {
  box-shadow: 0 4px 30px rgba(11,31,58,0.16);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo img { height: 44px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-links > li { position: relative; }
.nav-links > li > a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 13px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--navy);
  border-radius: 4px;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-links > li > a:hover,
.nav-links > li.active > a {
  color: var(--blue);
  background: rgba(88,109,166,0.07);
}
.nav-links > li > a .arrow {
  font-size: 0.65rem;
  transition: transform var(--transition);
}
.nav-links > li:hover > a .arrow { transform: rotate(180deg); }

/* Dropdown */
.dropdown {
  position: absolute;
  top: 100%;          /* flush — no physical gap */
  left: 0;
  min-width: 210px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border-top: 3px solid var(--blue);
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  /* Transparent padding bridges the visual gap without breaking hover */
  padding-top: 8px;
}
/* Invisible bridge above dropdown so mouse travel doesn't break hover */
.dropdown::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}
.nav-links > li:hover .dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: 10px 18px;
  font-size: 0.83rem;
  font-weight: 400;
  color: var(--grey-dark);
  transition: all var(--transition);
  border-bottom: 1px solid var(--grey-light);
}
.dropdown a:last-child { border-bottom: none; }
.dropdown a:hover {
  color: var(--blue);
  background: rgba(88,109,166,0.06);
  padding-left: 24px;
}

/* CTA in nav */
.nav-cta {
  background: var(--navy) !important;
  color: var(--white) !important;
  padding: 10px 20px !important;
  border-radius: var(--radius) !important;
  font-weight: 600 !important;
  font-size: 0.85rem;
  display: inline-block;
  transition: background var(--transition);
}
.nav-cta:hover {
  background: var(--blue) !important;
  color: var(--white) !important;
}

/* Mobile nav — hidden by default at ALL viewport sizes.
   Shown only inside the @media (max-width: 768px) block. */
#mobile-nav {
  display: none;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 26px; height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ==============================
   HERO
   ============================== */
#hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
  padding-top: 72px; /* navbar height */
}
.hero-media {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.42;
}
video.hero-media {
  display: none; /* show/hide via JS */
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(13,27,46,0.90) 0%,
    rgba(13,27,46,0.60) 55%,
    rgba(13,27,46,0.25) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 18px;
  animation: fadeIn 0.8s ease forwards;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 6rem);
  font-weight: 800;
  color: var(--white);
  line-height: 0.95;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
  animation: fadeUp 0.9s 0.2s ease both;
}
.hero-title em {
  font-style: normal;
  color: var(--blue-light);
}
.hero-body {
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255,255,255,0.80);
  line-height: 1.7;
  max-width: 500px;
  margin-bottom: 36px;
  animation: fadeUp 0.9s 0.4s ease both;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  animation: fadeUp 0.9s 0.55s ease both;
}

/* Footer logo */
.footer-logo {
  height: 38px;
  width: auto;
  margin-bottom: 18px;
  filter: brightness(0) invert(1);
}
/* Footer credit */
.footer-credit {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}
.footer-credit a {
  color: rgba(255,255,255,0.55);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
.footer-credit a:hover { color: var(--blue-light); }

/* ==============================
   ABOUT
   ============================== */
#about { padding: 96px 0; background: var(--white); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-content .section-label { margin-bottom: 6px; }
.about-content .section-title { margin-bottom: 20px; }
.about-body {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--grey-dark);
  margin-bottom: 28px;
}
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--blue);
  transition: gap var(--transition);
}
.about-link:hover { gap: 12px; }
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat-card {
  background: var(--off-white);
  border-radius: 10px;
  padding: 28px 24px;
  border-left: 4px solid var(--blue);
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.80rem;
  font-weight: 500;
  color: var(--grey-mid);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.4;
}

/* ==============================
   GPI MERGER — blue bg + grid lines
   ============================== */
#gpi {
  background-color: var(--blue-bg);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
/* SVG grid line pattern overlay */
#gpi::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
/* subtle radial glow */
#gpi::after {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.gpi-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 220px 1px 1fr;
  gap: 0 48px;
  align-items: center;
}
.gpi-badge {
  text-align: center;
}
.gpi-badge .badge-tag {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  display: block;
  margin-bottom: 12px;
}
.gpi-badge .badge-title {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 0.88;
  letter-spacing: -0.02em;
}
.gpi-badge .badge-sub {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 6px;
  display: block;
}
.gpi-badge .badge-years {
  margin-top: 14px;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.40);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.gpi-divider {
  width: 1px;
  height: 140px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.30), transparent);
}
.gpi-text .section-label { color: rgba(255,255,255,0.55); }
.gpi-text h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.gpi-text p {
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.76);
  margin-bottom: 28px;
  max-width: 560px;
}

/* ==============================
   OUR PROMISE
   ============================== */
#promise {
  padding: 96px 0;
  background: var(--off-white);
}
.promise-header {
  text-align: center;
  margin-bottom: 60px;
}
.promise-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.promise-card {
  background: var(--white);
  border-radius: 12px;
  padding: 36px 20px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.promise-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.promise-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.promise-card:hover::before { transform: scaleX(1); }
.promise-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, rgba(88,109,166,0.12) 0%, rgba(88,109,166,0.05) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: all var(--transition);
}
.promise-card:hover .promise-icon {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
}
.promise-icon svg {
  width: 34px; height: 34px;
  stroke: var(--blue);
  fill: none;
  transition: stroke var(--transition);
}
.promise-card:hover .promise-icon svg { stroke: var(--white); }
.promise-text {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--grey-dark);
}

/* ==============================
   PRODUCTS & SERVICES — 2×2 grid
   ============================== */
#products {
  padding: 96px 0;
  background: var(--white);
}
.products-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
}
.products-header p {
  max-width: 300px;
  font-size: 0.90rem;
  color: var(--grey-mid);
  line-height: 1.7;
  text-align: right;
}
.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 260px 260px;
  gap: 16px;
}
.product-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  display: block;
}
.product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover img { transform: scale(1.06); }
.product-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,27,46,0.85) 0%, transparent 55%);
  display: flex;
  align-items: flex-end;
  padding: 22px 20px;
  transition: background var(--transition);
}
.product-card:hover .product-card-overlay {
  background: linear-gradient(to top, rgba(13,27,46,0.92) 0%, rgba(13,27,46,0.2) 100%);
}
.product-card-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.product-card-name::after {
  content: '→';
  opacity: 0;
  transform: translateX(-6px);
  transition: all var(--transition);
  font-size: 1rem;
}
.product-card:hover .product-card-name::after {
  opacity: 1;
  transform: translateX(0);
}

/* ==============================
   CAPABILITIES CAROUSEL
   ============================== */
#capabilities {
  padding: 96px 0;
  background: var(--off-white);
}
.capabilities-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
}
.cap-carousel-wrap { position: relative; overflow: hidden; }
.cap-carousel-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.25,0.8,0.25,1);
}
.cap-card {
  flex: 0 0 calc(33.333% - 16px);
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.cap-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.cap-card-img-wrap { overflow: hidden; }
.cap-card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}
.cap-card:hover .cap-card-img { transform: scale(1.04); }
.cap-card-body { padding: 24px; }
.cap-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.cap-card-body p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--grey-dark);
  margin-bottom: 16px;
}
.cap-read-more {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.cap-read-more:hover { gap: 10px; }
.cap-nav {
  display: flex;
  gap: 10px;
}
.cap-nav-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 2px solid var(--blue);
  background: transparent;
  color: var(--blue);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.cap-nav-btn:hover {
  background: var(--blue);
  color: var(--white);
}
.cap-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 20px;
}
.cap-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--grey-light);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}
.cap-dot.active {
  background: var(--blue);
  width: 24px;
  border-radius: 4px;
}

/* ==============================
   OUR CUSTOMERS — Marquee
   ============================== */
#customers {
  padding: 80px 0;
  background: var(--white);
}
.customers-header {
  text-align: center;
  margin-bottom: 48px;
}
.marquee-wrap {
  overflow: hidden;
  position: relative;
}
.marquee-wrap::before,
.marquee-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}
.marquee-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--white), transparent);
}
.marquee-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--white), transparent);
}
.marquee-track {
  display: flex;
  gap: 0;
  animation: marquee 28s linear infinite;
  width: max-content;
}
.marquee-track:hover { animation-play-state: paused; }
.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 48px;
  filter: grayscale(1);
  opacity: 0.55;
  transition: all var(--transition);
}
.logo-item:hover {
  filter: grayscale(0);
  opacity: 1;
}
.logo-item img {
  max-height: 48px;
  max-width: 130px;
  object-fit: contain;
  width: auto;
}

/* ==============================
   FOOTER
   ============================== */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand img { height: 38px; margin-bottom: 18px; filter: brightness(0) invert(1); }
.footer-brand p {
  font-size: 0.83rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.footer-detail {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.80rem;
  margin-bottom: 10px;
}
.footer-detail svg { flex-shrink: 0; width:14px; height:14px; stroke: var(--blue-light); fill: none; margin-top: 2px; }
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul li a:hover { color: var(--blue-light); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.80rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-social a:hover { color: var(--blue-light); }

/* ==============================
   WHATSAPP FLOAT
   ============================== */
.wa-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 56px; height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37,211,102,0.45);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.wa-float:hover {
  background: #1ebe5d;
  transform: scale(1.08) translateY(-3px);
  box-shadow: 0 10px 28px rgba(37,211,102,0.55);
}
.wa-float svg { width: 28px; height: 28px; position: relative; z-index: 1; }
.wa-pulse {
  position: absolute;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(37,211,102,0.35);
  animation: wa-ping 2s ease-out infinite;
}
@keyframes wa-ping {
  0%   { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.9); opacity: 0; }
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 1100px) {
  .promise-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .gpi-inner { grid-template-columns: 1fr; gap: 32px; }
  .gpi-divider { display: none; }
  .products-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .products-header p { text-align: left; max-width: 100%; }
  .products-grid { grid-template-rows: 220px 220px; }
  .cap-card { flex: 0 0 calc(50% - 12px); }
  .capabilities-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  /* Mobile nav — absolutely positioned below navbar */
  #mobile-nav {
    display: block;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s 0.25s;
    max-height: 85vh;
    overflow-y: auto;
  }
  #mobile-nav.open {
    visibility: visible;
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }
  .mob-nav-list { padding: 12px 0 20px; }
  .mob-nav-list li { border-bottom: 1px solid var(--grey-light); }
  .mob-nav-list > li > a,
  .mob-nav-list > li > .mob-parent {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--navy);
    cursor: pointer;
  }
  .mob-sub {
    background: var(--off-white);
    display: none;
    padding: 8px 0;
  }
  .mob-sub.open { display: block; }
  .mob-sub a {
    display: block;
    padding: 10px 36px;
    font-size: 0.85rem;
    color: var(--grey-dark);
  }
  .mob-sub a:hover { color: var(--blue); }
  .mob-nav-cta { padding: 12px 24px; }
  .mob-nav-cta a {
    display: block;
    text-align: center;
    background: var(--navy);
    color: var(--white);
    padding: 12px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
  }


  .hero-title { font-size: clamp(2.8rem, 10vw, 4rem); }

  .stats-grid { grid-template-columns: 1fr 1fr; }
  .promise-grid { grid-template-columns: 1fr 1fr; }
  .products-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 220px);
  }
  .cap-card { flex: 0 0 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .wa-float { bottom: 20px; right: 16px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.6rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .promise-grid { grid-template-columns: 1fr; }
  .gpi-badge .badge-title { font-size: 3rem; }
  .products-grid { grid-template-rows: repeat(4, 200px); }
}