@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  color-scheme: light;
  --color-primary: #0a2540;
  --color-primary-light: #1a3a5c;
  --color-primary-lighter: #2d5a8a;
  --color-accent: #e85d2f;
  --color-accent-hover: #d04a1f;
  --color-accent-light: rgba(232, 93, 47, 0.1);
  --color-background: #f5f7fa;
  --color-surface: #ffffff;
  --color-dark-bg: #0a1628;
  --color-dark-surface: #121f33;
  --color-text: #1a1a2e;
  --color-muted-text: #5a6577;
  --color-light-text: #8896a6;
  --color-border: #e2e8f0;
  --color-border-light: #f0f3f7;
  --color-focus: #e85d2f;
  --color-success: #22c55e;
  --color-warning: #f59e0b;

  --font-body: 'Noto Sans SC', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-display: 'Noto Sans SC', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  --shadow-sm: 0 1px 2px rgba(10, 37, 64, 0.05);
  --shadow-md: 0 4px 12px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 8px 30px rgba(10, 37, 64, 0.12);
  --shadow-xl: 0 16px 48px rgba(10, 37, 64, 0.16);

  --space-unit: 0.25rem;
  --content-width: 75rem;
  --header-height: 4.5rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100dvh;
  line-height: 1.7;
  font-size: 1rem;
  font-weight: 400;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.75em;
  color: var(--color-primary);
}

h1 { font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 900; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; font-weight: 600; }

p {
  margin: 0 0 1em;
  color: var(--color-muted-text);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent-hover);
}

/* ========== Focus & A11y ========== */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.skip-link {
  left: 1rem;
  position: fixed;
  top: 1rem;
  transform: translateY(-200%);
  z-index: 100;
  background: var(--color-accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ========== Layout ========== */
.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 40rem;
  margin: 0 auto;
  font-size: 1.05rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2rem;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-primary);
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
}

.logo img {
  height: 2.2rem;
  width: auto;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-slogan {
  font-size: 0.65rem;
  color: var(--color-muted-text);
  letter-spacing: 0.05em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav a {
  padding: 0.5rem 0.875rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}

.header-cta:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-primary);
}

.mobile-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(232, 93, 47, 0.35);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-dark-bg) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  color: #fff;
  overflow: hidden;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 3rem 3rem;
  mask-image: radial-gradient(ellipse 70% 70% at 60% 50%, black 20%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 32rem;
}

.hero h1 {
  color: #fff;
  margin-bottom: 1rem;
}

.hero h1 .accent {
  color: var(--color-accent);
}

.hero p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.15rem;
  margin-bottom: 2rem;
  max-width: 36rem;
}

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

.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 32rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--color-accent);
  font-family: var(--font-mono);
  line-height: 1.2;
}

.stat-unit {
  font-size: 0.5em;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 400;
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.25rem;
}

/* Circuit decoration */
.hero-circuit {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  max-width: 600px;
  opacity: 0.08;
  z-index: 1;
}

/* ========== Cards ========== */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--color-border-light);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
}

.card p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ========== Grid Layouts ========== */
.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;
}

/* ========== About Preview ========== */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  aspect-ratio: 3/4;
  background: #000;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 1.5rem 1.5rem;
}

.about-image-text {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.3);
  font-size: 4rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.about-text h2 {
  margin-bottom: 1rem;
}

.about-text p {
  margin-bottom: 1.25rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
}

.highlight-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-accent);
  margin-top: 0.15rem;
}

.highlight-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

/* ========== Industry Tags ========== */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
  gap: 1rem;
}

.industry-tag {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.industry-tag:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(232, 93, 47, 0.1);
}

.industry-tag svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ========== CTA Section ========== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  text-align: center;
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(232, 93, 47, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

.cta-section > * {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--color-dark-bg);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo-name {
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  display: block;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  line-height: 1.8;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-contact-item svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ========== Page Hero (Inner Pages) ========== */
.page-hero {
  background: linear-gradient(135deg, var(--color-dark-bg), var(--color-primary));
  color: #fff;
  padding: 5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 3rem 3rem;
}

.page-hero h1 {
  color: #fff;
  position: relative;
  z-index: 1;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
  max-width: 40rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb-sep {
  opacity: 0.4;
}

/* ========== Feature Blocks ========== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3rem 0;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-lighter));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.feature-visual-icon {
  font-size: 5rem;
  opacity: 0.15;
  color: #fff;
}

.feature-text h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-text p {
  margin-bottom: 1rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  margin-bottom: 0.625rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

.feature-list li::before {
  content: '';
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.5rem;
}

/* ========== Data Table ========== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-muted-text);
}

.data-table tr:hover td {
  background: var(--color-background);
}

.data-table tr:nth-child(even) td {
  background: rgba(245, 247, 250, 0.5);
}

/* ========== Timeline ========== */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
  padding-left: 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.35rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-background);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-year {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.timeline-content h4 {
  margin-bottom: 0.25rem;
}

.timeline-content p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* ========== Contact ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.contact-info-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  color: var(--color-accent);
}

.contact-info-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.contact-info-text h4 {
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.contact-info-text p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--color-muted-text);
}

.contact-form {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ========== Quality Badges ========== */
.badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 1.5rem;
}

.badge-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.badge-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.badge-icon {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 50%;
  color: #fff;
}

.badge-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.badge-card h4 {
  margin-bottom: 0.375rem;
}

.badge-card p {
  font-size: 0.825rem;
  margin-bottom: 0;
}

/* ========== Process Steps ========== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1.5rem;
  counter-reset: step;
}

/* ========== Image Gallery ========== */
.gallery-section {
  padding: 3rem 0;
}
.gallery-section .section-header {
  margin-bottom: 1.5rem;
}
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 52rem;
  margin: 0 auto;
}
.photo-grid.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}
.photo-grid.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}
.photo-grid .photo-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-border-light);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.photo-grid .photo-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.photo-grid .photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-grid .photo-item .photo-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.4rem 0.6rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.65));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 500;
}
.photo-grid .photo-item.featured {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: auto;
}
/* Lightbox overlay */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.lightbox-overlay.active {
  display: flex;
}
.lightbox-overlay img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

@media (max-width: 768px) {
  .header-inner {
    justify-content: space-between;
    gap: 0;
  }

  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  .photo-grid .photo-item.featured {
    grid-column: span 2;
    grid-row: span 1;
    aspect-ratio: 16/9;
  }
  .photo-grid .photo-item .photo-caption {
    font-size: 0.65rem;
    padding: 0.3rem 0.5rem;
  }
}
@media (max-width: 480px) {
  .photo-grid {
    grid-template-columns: 1fr;
  }
  .photo-grid .photo-item.featured {
    grid-column: span 1;
  }
}

.process-step {
  text-align: center;
  padding: 1.5rem 1rem;
  position: relative;
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-accent);
  opacity: 0.3;
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.process-step h4 {
  font-size: 1rem;
  margin-bottom: 0.375rem;
}

.process-step p {
  font-size: 0.825rem;
  margin-bottom: 0;
}

/* ========== Equipment List ========== */
.equipment-category {
  margin-bottom: 2.5rem;
}

.equipment-category h3 {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1.15rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
}

.equipment-category h3 svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-accent);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-preview,
  .feature-block {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .feature-block.reverse {
    direction: ltr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.25rem;
    z-index: 40;
    overflow-y: auto;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 0.875rem 1rem;
    font-size: 1rem;
    width: 100%;
  }

  .header-cta {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .hero {
    min-height: 70vh;
    padding: 2rem 0;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3rem 0;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ========== Animations ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}