:root {
  --primary: #081c2d;
  --secondary: #0d4f8b;
  --accent: #d8a031;
  --background: #ffffff;
  --light-grey: #f5f7fa;
  --dark-text: #202124;
  --border: rgba(8, 28, 45, 0.12);
  --shadow: 0 20px 60px rgba(8, 28, 45, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1160px, calc(100% - 2rem));
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--dark-text);
  background: var(--background);
  line-height: 1.7;
}

img {
  width: 100%;
  display: block;
  object-fit: cover;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.hero {
  min-height: 100vh;
  background: linear-gradient(120deg, rgba(8, 28, 45, 0.9), rgba(8, 28, 45, 0.68)),
    url('https://images.unsplash.com/photo-1581578731548-c64695cc6952?auto=format&fit=crop&w=1800&q=80') center/cover;
  color: white;
  position: relative;
  overflow: hidden;
}

.hero-subpage {
  min-height: 70vh;
}

.nav {
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  z-index: 20;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.nav.scrolled {
  background: rgba(8, 28, 45, 0.96);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.18);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: white;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.92);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.28rem;
  background: transparent;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 1.5rem;
  height: 2px;
  background: white;
  display: block;
}

.hero-content {
  min-height: calc(100vh - 88px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 760px;
  padding: 4rem 0 5rem;
}

.hero-subpage .page-hero {
  min-height: calc(70vh - 88px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 760px;
  padding: 3rem 0 4rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.77rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.eyebrow-dark {
  color: var(--secondary);
}

h1,
h2,
h3 {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.15;
}

.hero h1 {
  font-size: clamp(2.6rem, 4.4vw, 4.6rem);
  margin-bottom: 1rem;
}

.hero-text,
.page-hero p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  border: 1px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 15px 35px rgba(216, 160, 49, 0.25);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-color: rgba(255, 255, 255, 0.16);
}

.scroll-indicator {
  margin-top: 3rem;
  width: fit-content;
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}

.scroll-indicator span {
  display: inline-block;
  width: 1.1rem;
  height: 1.1rem;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
}

.section {
  padding: 5.5rem 0;
}

.section-light {
  background: var(--background);
}

.section-dark {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-heading h2,
.about-grid h2,
.cta-panel h2 {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  margin-bottom: 0.5rem;
}

.text-link {
  color: var(--secondary);
  font-weight: 600;
}

.section-dark .text-link {
  color: var(--accent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
}

.stat-card,
.service-card,
.why-card,
.value-card,
.contact-card,
.contact-form,
.cta-panel {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 2rem 1.5rem;
  text-align: center;
}

.stat-card h3 {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
}

.about-grid p,
.service-card p,
.why-card p,
.value-card p,
.contact-card li,
.contact-card p,
.site-footer p,
.site-footer li {
  color: rgba(0, 0, 0, 0.8);
}

.about-grid h2 {
  color: var(--primary);
}

.about-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  margin: 1.35rem 0 1.75rem;
}

.about-list li {
  position: relative;
  padding-left: 1.25rem;
}

.about-list li::before {
  content: '•';
  color: var(--accent);
  position: absolute;
  left: 0;
}

.about-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.service-grid,
.service-page-grid,
.why-grid,
.value-grid {
  display: grid;
  gap: 1.35rem;
}

.service-grid,
.service-page-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.why-grid,
.value-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card,
.why-card,
.value-card {
  padding: 1.6rem;
  background: var(--light-grey);
  border: 1px solid var(--border);
  box-shadow: none;
}

.section-dark .service-card,
.section-dark .why-card,
.section-dark .value-card {
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.service-card h3,
.why-card h3,
.value-card h3 {
  margin-bottom: 0.5rem;
}

.icon-wrap {
  width: 3rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(216, 160, 49, 0.14);
  margin-bottom: 0.9rem;
}

.icon-wrap svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--secondary);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.industry-pill {
  padding: 1rem 1.2rem;
  border-radius: 999px;
  background: var(--light-grey);
  color: var(--primary);
  text-align: center;
  font-weight: 600;
  border: 1px solid var(--border);
}

.gallery-preview {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 0.9fr;
  gap: 1rem;
}

.gallery-item {
  overflow: hidden;
  border-radius: var(--radius-md);
  min-height: 220px;
  box-shadow: var(--shadow);
}

.gallery-item.large {
  min-height: 460px;
}

.gallery-item img {
  height: 100%;
  transition: transform 0.35s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.testimonial-slider {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
}

.slider-btn {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.12);
  color: white;
  cursor: pointer;
}

.testimonial-card {
  display: none;
  padding: 2rem;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.12);
}

.testimonial-card.active {
  display: block;
}

.cta-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(8, 28, 45, 0.06), rgba(13, 79, 139, 0.12));
  color: var(--primary);
  border-color: rgba(8, 28, 45, 0.07);
}

.site-footer {
  padding: 4rem 0 2rem;
  background: var(--primary);
  color: white;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
  gap: 1.5rem;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  margin-top: 0.75rem;
}

.footer-links a,
.footer-links li {
  color: rgba(255,255,255,0.82);
}

.footer-bottom {
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.7);
}

.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.contact-card,
.contact-form {
  padding: 2rem;
  background: var(--light-grey);
  color: var(--primary);
  border: 1px solid var(--border);
  box-shadow: none;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.form-field {
  display: grid;
  gap: 0.4rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  background: white;
  border: 1px solid var(--border);
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: 12px;
}

.form-field textarea {
  min-height: 8rem;
  resize: vertical;
}

.map-placeholder {
  padding: 1.4rem;
  border-radius: 16px;
  margin-top: 1.2rem;
  border: 1px dashed var(--border);
  text-align: center;
  color: var(--secondary);
  font-weight: 600;
}

.gallery-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.filter-btn {
  border: 1px solid var(--border);
  background: white;
  color: var(--primary);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.gallery-grid .gallery-item {
  min-height: 250px;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8, 28, 45, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 50;
}

.lightbox.open {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 900px;
  width: 100%;
}

.lightbox-content img {
  border-radius: 24px;
  max-height: 80vh;
  object-fit: contain;
  background: white;
}

.close-lightbox {
  position: absolute;
  top: -0.7rem;
  right: -0.7rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: var(--accent);
  color: white;
  font-size: 1.3rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.page-loader {
  position: fixed;
  inset: 0;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.35s ease;
}

.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-ring {
  width: 3rem;
  height: 3rem;
  border: 3px solid rgba(255,255,255,0.16);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}