/* ============================================
   PoshPatternBD — Main Stylesheet
   Palette: Navy #0D2545 | White | Teal #0B8A7A | Gold #C9952A
   ============================================ */

:root {
  --navy:   #0D2545;
  --navy-light: #1a3a6b;
  --teal:   #0B8A7A;
  --teal-light: #0fa896;
  --gold:   #C9952A;
  --white:  #ffffff;
  --off-white: #f7f9fc;
  --light-gray: #eef1f6;
  --mid-gray: #8a95a3;
  --dark-gray: #3d4a5c;
  --text:   #1e2c3a;
  --border: #dde3ec;
  --shadow: 0 4px 24px rgba(13,37,69,0.10);
  --shadow-lg: 0 8px 48px rgba(13,37,69,0.15);
  --radius: 10px;
  --radius-lg: 18px;
  --transition: 0.28s cubic-bezier(.4,0,.2,1);
  --font: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Inter', sans-serif;
}

/* ============ RESET & BASE ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--navy);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { color: var(--dark-gray); line-height: 1.75; }
.text-teal  { color: var(--teal); }
.text-gold  { color: var(--gold); }
.text-navy  { color: var(--navy); }
.text-white { color: var(--white); }
.text-center { text-align: center; }

/* ============ LAYOUT ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section--sm { padding: 3rem 0; }
.section--lg { padding: 7rem 0; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ============ SECTION HEADER ============ */
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.75rem;
}
.section-header h2 { margin-bottom: 1rem; }
.section-header p  { max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
.divider {
  width: 56px; height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin: 1rem auto 0;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--teal);
  color: var(--white);
}
.btn-primary:hover { background: var(--teal-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(11,138,122,0.35); }
.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.65);
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); border-color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-outline:hover { background: var(--teal); color: var(--white); }
.btn-gold {
  background: var(--gold);
  color: var(--white);
}
.btn-gold:hover { background: #b8821e; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201,149,42,0.35); }
.btn-sm { padding: 0.6rem 1.25rem; font-size: 0.85rem; }
.btn-lg { padding: 1.1rem 2.5rem; font-size: 1.05rem; }

/* ============ NAVIGATION ============ */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: var(--navy);
  box-shadow: 0 2px 24px rgba(0,0,0,0.18);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.5rem;
  max-width: 1280px; margin: 0 auto;
}
.nav-logo img { height: 52px; width: auto; object-fit: contain; }
.nav-logo span {
  font-size: 1.25rem; font-weight: 800;
  color: var(--white); letter-spacing: -0.02em;
}
.nav-menu { display: flex; align-items: center; gap: 0; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: block; padding: 0.5rem 0.95rem;
  font-size: 0.88rem; font-weight: 600;
  color: rgba(255,255,255,0.88);
  transition: color var(--transition);
  letter-spacing: 0.01em;
}
.nav-menu > li > a:hover, .nav-menu > li > a.active { color: var(--gold); }
.nav-menu > li.has-dropdown:hover > .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown {
  position: absolute; top: calc(100% + 0.75rem); left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
  padding: 0.5rem 0;
}
.dropdown li a {
  display: block; padding: 0.65rem 1.25rem;
  font-size: 0.875rem; color: var(--dark-gray); font-weight: 500;
  transition: background var(--transition), color var(--transition);
}
.dropdown li a:hover { background: var(--off-white); color: var(--teal); }
.nav-cta { margin-left: 1rem; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-hamburger span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: var(--transition); }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding-top: 6.5rem;
  padding-bottom: 2.5rem;
}
.hero-bg {
  position: absolute; inset: 0;
  background: var(--navy);
  z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.85);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(13,37,69,0.95) 0%, rgba(13,37,69,0.85) 50%, rgba(11,138,122,0.4) 100%);
  z-index: 1;
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 820px;
  padding: 2.5rem 1.5rem 2rem;
  margin: auto auto 0 8vw;
}
.hero-content .badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(201,149,42,0.18); border: 1px solid rgba(201,149,42,0.4);
  color: var(--gold); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.4rem 1rem; border-radius: 100px;
  margin-bottom: 1.5rem;
}
.hero-content h1 { color: var(--white); margin-bottom: 1.25rem; }
.hero-content h1 span { color: var(--gold); }
.hero-content p {
  color: rgba(255,255,255,0.82); font-size: 1.1rem;
  max-width: 640px; margin-bottom: 2rem; line-height: 1.8;
}
.hero-btns {
  display: flex; gap: 1rem; flex-wrap: wrap;
  margin-bottom: 2.5rem;
  position: relative; z-index: 3;
}
.hero-stats {
  position: relative;
  z-index: 2;
  width: 100%;
  margin-top: 1rem;
}
.hero-stats-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.hero-stat {
  background: rgba(13, 37, 69, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}
.hero-stat:hover {
  background: rgba(13, 37, 69, 0.9);
  border-color: rgba(201, 149, 42, 0.5);
  transform: translateY(-2px);
}
.hero-stat strong { display: block; font-size: 1.4rem; color: var(--gold); font-weight: 800; margin-bottom: 0.25rem; letter-spacing: -0.01em; }
.hero-stat span { font-size: 0.82rem; color: rgba(255,255,255,0.85); font-weight: 500; display: block; }

/* ============ ABOUT STRIP ============ */
.about-strip { background: var(--off-white); }
.about-strip-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
  align-items: center;
}
.about-img-wrap {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about-img-wrap img { width: 100%; height: 400px; object-fit: cover; }
.about-badge {
  position: absolute; bottom: 1.5rem; left: 1.5rem;
  background: var(--navy); color: var(--white);
  padding: 0.75rem 1.25rem; border-radius: var(--radius);
  font-size: 0.82rem; font-weight: 600;
  border-left: 4px solid var(--gold);
  max-width: 220px;
}
.about-text .label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--teal); margin-bottom: 0.75rem; display: block; }
.about-text h2 { margin-bottom: 1.25rem; }
.about-text p { margin-bottom: 1rem; }
.about-list { margin: 1.5rem 0; display: flex; flex-direction: column; gap: 0.65rem; }
.about-list li { display: flex; align-items: center; gap: 0.75rem; font-size: 0.95rem; color: var(--dark-gray); font-weight: 500; }
.about-list li::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); flex-shrink: 0; }

/* ============ SERVICES GRID ============ */
.services { background: var(--white); }
.service-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card-img { height: 200px; overflow: hidden; position: relative; }
.service-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.service-card:hover .service-card-img img { transform: scale(1.07); }
.service-card-img .service-icon {
  position: absolute; top: 1rem; left: 1rem;
  background: var(--navy); color: var(--white);
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.service-card-body { padding: 1.5rem; flex: 1; }
.service-card-body h3 { margin-bottom: 0.6rem; font-size: 1.05rem; color: var(--navy); }
.service-card-body p { font-size: 0.88rem; line-height: 1.65; color: var(--mid-gray); margin-bottom: 1rem; }
.service-card-body a { font-size: 0.85rem; color: var(--teal); font-weight: 600; display: inline-flex; align-items: center; gap: 0.35rem; }
.service-card-body a:hover { color: var(--navy); }

/* ============ SERVICES GRID — 4-col ============ */
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
@media (max-width: 1100px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }

/* ============ PRODUCTS SECTION ============ */
.products { background: var(--off-white); }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.product-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 2px 12px rgba(13,37,69,0.08);
  cursor: pointer; group: true;
}
.product-card img { width: 100%; height: 260px; 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(0deg, rgba(13,37,69,0.85) 0%, rgba(13,37,69,0.2) 60%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1.5rem;
  transition: var(--transition);
}
.product-card h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 0.4rem; }
.product-card p { color: rgba(255,255,255,0.75); font-size: 0.82rem; margin-bottom: 1rem; }
.product-card .btn-sm { opacity: 0; transform: translateY(8px); transition: var(--transition); }
.product-card:hover .btn-sm { opacity: 1; transform: translateY(0); }

/* ============ WHY US ============ */
.why-us { background: var(--navy); }
.why-us-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.why-card {
  text-align: center; padding: 2rem 1.25rem;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.why-card:hover { background: rgba(255,255,255,0.05); border-color: rgba(201,149,42,0.4); }
.why-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: rgba(11,138,122,0.15); border: 1px solid rgba(11,138,122,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; margin: 0 auto 1.25rem;
}
.why-card h3 { color: var(--white); margin-bottom: 0.6rem; font-size: 1rem; }
.why-card p { color: rgba(255,255,255,0.6); font-size: 0.87rem; line-height: 1.65; }

/* ============ INDUSTRIES ============ */
.industries { background: var(--white); }
.industries-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.industry-card {
  background: var(--off-white); border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem; text-align: center;
  transition: var(--transition);
}
.industry-card:hover { background: var(--navy); border-color: var(--navy); }
.industry-card:hover h4, .industry-card:hover p { color: var(--white); }
.industry-card:hover .ind-icon { background: rgba(255,255,255,0.12); }
.ind-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(11,138,122,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin: 0 auto 1rem;
  transition: var(--transition);
}
.industry-card h4 { color: var(--navy); margin-bottom: 0.35rem; font-size: 0.95rem; transition: var(--transition); }
.industry-card p { font-size: 0.8rem; color: var(--mid-gray); transition: var(--transition); }

/* ============ PROCESS ============ */
.process { background: var(--off-white); }
.process-steps { display: flex; gap: 0; position: relative; }
.process-steps::before {
  content: ''; position: absolute; top: 32px; left: 10%; right: 10%;
  height: 2px; background: var(--border); z-index: 0;
}
.process-step {
  flex: 1; text-align: center; padding: 0 1rem;
  position: relative; z-index: 1;
}
.step-number {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--white); border: 2px solid var(--teal);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 800; color: var(--teal);
  margin: 0 auto 1rem;
}
.process-step h4 { color: var(--navy); margin-bottom: 0.4rem; font-size: 0.95rem; }
.process-step p { font-size: 0.82rem; color: var(--mid-gray); }

/* ============ FAQ ============ */
.faq { background: var(--white); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.faq-item {
  background: var(--off-white); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.faq-question {
  width: 100%; padding: 1.25rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.95rem; font-weight: 600; color: var(--navy);
  text-align: left; cursor: pointer; background: none; border: none;
  font-family: var(--font);
  transition: background var(--transition);
}
.faq-question:hover { background: rgba(11,138,122,0.05); }
.faq-question .faq-icon {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--teal); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0; font-weight: 300;
  transition: transform var(--transition);
}
.faq-question.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
}
.faq-answer.open { max-height: 300px; padding: 0 1.5rem 1.25rem; }
.faq-answer p { font-size: 0.9rem; color: var(--dark-gray); line-height: 1.7; }

/* ============ CTA BANNER ============ */
.cta-banner {
  background: linear-gradient(135deg, var(--teal) 0%, var(--navy) 100%);
  padding: 4rem 0; text-align: center;
}
.cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ============ GALLERY ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.gallery-item {
  border-radius: var(--radius); overflow: hidden;
  cursor: pointer; position: relative;
}
.gallery-item img { width: 100%; height: 240px; object-fit: cover; transition: transform 0.5s ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item .gallery-overlay {
  position: absolute; inset: 0;
  background: rgba(13,37,69,0.45);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: var(--transition);
  font-size: 2rem; color: var(--white);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* Gallery filters */
.gallery-filters { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 2rem; }
.filter-btn {
  padding: 0.5rem 1.25rem; border-radius: 100px;
  font-size: 0.85rem; font-weight: 600;
  border: 2px solid var(--border);
  color: var(--dark-gray); background: var(--white);
  cursor: pointer; transition: var(--transition);
}
.filter-btn.active, .filter-btn:hover {
  background: var(--teal); color: var(--white); border-color: var(--teal);
}

/* ============ LIGHTBOX ============ */
.lightbox {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.92);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.lightbox.active { opacity: 1; visibility: visible; }
.lightbox-img { max-width: 90vw; max-height: 88vh; border-radius: var(--radius); object-fit: contain; }
.lightbox-close {
  position: absolute; top: 1.5rem; right: 1.5rem;
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.12); color: var(--white);
  font-size: 1.4rem; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--transition);
}
.lightbox-close:hover { background: var(--teal); }
.lightbox-prev, .lightbox-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.12); color: var(--white);
  font-size: 1.4rem; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--transition); user-select: none;
}
.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }
.lightbox-prev:hover, .lightbox-next:hover { background: var(--teal); }

/* ============ PAGE HERO ============ */
.page-hero {
  background: var(--navy); padding: 8rem 0 4rem;
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(11,138,122,0.3), transparent 60%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); margin-bottom: 1rem; }
.page-hero p { color: rgba(255,255,255,0.75); max-width: 600px; font-size: 1.05rem; }
.breadcrumb { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.breadcrumb a, .breadcrumb span { font-size: 0.82rem; color: rgba(255,255,255,0.55); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: rgba(255,255,255,0.35); }

/* ============ CONTACT FORM ============ */
.contact-section { background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 4rem; align-items: start; }
.contact-info h2 { margin-bottom: 1rem; }
.contact-info p { margin-bottom: 2rem; }
.contact-item { display: flex; gap: 1rem; margin-bottom: 1.5rem; }
.contact-item-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(11,138,122,0.1); border: 1px solid rgba(11,138,122,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.contact-item-text strong { display: block; color: var(--navy); font-size: 0.9rem; margin-bottom: 0.2rem; }
.contact-item-text span { font-size: 0.88rem; color: var(--dark-gray); }
.contact-form { background: var(--off-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2.5rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--navy); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.8rem 1rem; border-radius: 6px;
  border: 1.5px solid var(--border); background: var(--white);
  font-family: var(--font); font-size: 0.9rem; color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal); box-shadow: 0 0 0 3px rgba(11,138,122,0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* ============ FOOTER ============ */
footer {
  background: var(--navy);
  border-top: 3px solid var(--gold);
}
.footer-top { padding: 4rem 0 3rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 3rem; }
.footer-brand img { height: 56px; margin-bottom: 1.25rem; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.88rem; line-height: 1.75; margin-bottom: 1.5rem; }
.footer-social { display: flex; gap: 0.75rem; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 8px;
  background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; transition: var(--transition);
}
.footer-social a:hover { background: var(--teal); color: var(--white); }
.footer-col h5 { color: var(--white); margin-bottom: 1.25rem; font-size: 0.95rem; }
.footer-col ul li { margin-bottom: 0.65rem; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.87rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--gold); }
.footer-contact-item { display: flex; gap: 0.75rem; margin-bottom: 1rem; }
.footer-contact-item .icon { color: var(--gold); font-size: 1rem; margin-top: 2px; flex-shrink: 0; }
.footer-contact-item span { color: rgba(255,255,255,0.65); font-size: 0.87rem; line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.25rem 0;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-bottom p { color: rgba(255,255,255,0.45); font-size: 0.82rem; }
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { color: rgba(255,255,255,0.4); font-size: 0.82rem; transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--gold); }

/* ============ MOBILE NAV ============ */
.mobile-nav {
  position: fixed; top: 0; right: -100%; width: 300px; height: 100vh;
  background: var(--navy); z-index: 9998; overflow-y: auto;
  transition: right 0.35s cubic-bezier(.4,0,.2,1);
  padding: 5rem 1.5rem 2rem;
}
.mobile-nav.open { right: 0; }
.mobile-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  z-index: 9997; opacity: 0; visibility: hidden; transition: var(--transition);
}
.mobile-overlay.open { opacity: 1; visibility: visible; }
.mobile-nav ul { display: flex; flex-direction: column; gap: 0; }
.mobile-nav ul li a {
  display: block; padding: 0.85rem 0;
  color: rgba(255,255,255,0.85); font-size: 1rem; font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: color var(--transition);
}
.mobile-nav ul li a:hover { color: var(--gold); }
.mobile-nav-close {
  position: absolute; top: 1.25rem; right: 1.25rem;
  color: rgba(255,255,255,0.7); font-size: 1.5rem; cursor: pointer;
}

/* ============ BACK TO TOP ============ */
#back-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 500;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--teal); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transition: var(--transition);
  cursor: pointer;
}
#back-top.visible { opacity: 1; visibility: visible; }
#back-top:hover { background: var(--navy); transform: translateY(-3px); }

/* ============ UTILITY ============ */
.tag {
  display: inline-block;
  background: rgba(11,138,122,0.1); color: var(--teal);
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 0.25rem 0.75rem;
  border-radius: 100px; border: 1px solid rgba(11,138,122,0.2);
}
.card-shadow { box-shadow: var(--shadow); }
.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.bg-off-white { background: var(--off-white); }
.bg-navy { background: var(--navy); }

/* ============ ANIMATIONS ============ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.6s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .why-us-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-strip-inner { gap: 2.5rem; }
}

@media (max-width: 768px) {
  .nav-menu, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .hero { min-height: auto; padding-top: 6rem; padding-bottom: 3rem; }
  .hero-content { margin: 0 auto; text-align: center; padding: 2rem 1.5rem 1.5rem; }
  .hero-btns { justify-content: center; margin-bottom: 2rem; }
  .hero-stats-inner { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .about-strip-inner { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .why-us-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; gap: 1.5rem; }
  .process-steps::before { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats-inner { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
}