/* ========================================
   Atlanta Industry — Style Sheet
   ======================================== */

:root {
  --navy: #1B365D;
  --navy-dark: #0F2240;
  --navy-light: #2A4A7A;
  --red: #C41E3A;
  --red-hover: #A8182F;
  --white: #FFFFFF;
  --off-white: #F7F8FA;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  --font: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* Container */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
  font-size: 0.85rem;
  border-radius: 8px;
  letter-spacing: 0.5px;
}
.logo-text { letter-spacing: -0.3px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--navy); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 1px;
  transition: var(--transition);
}

/* Language Toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--off-white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 6px 14px;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}
.lang-toggle:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
}
.btn-primary:hover { background: var(--red-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-full { width: 100%; }

/* ---- Section Labels ---- */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--red);
  margin-bottom: 12px;
}
.section-desc {
  max-width: 600px;
  margin: 0 auto 48px;
  color: var(--gray-500);
  font-size: 1.05rem;
}
section h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

/* ---- Hero ---- */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
  color: var(--white);
  text-align: center;
}
.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.hero-sub {
  font-size: 1.15rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
  max-width: 580px;
  margin: 0 auto 36px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 56px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.stat { text-align: center; }
.stat strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.stat span {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,0.15);
}

/* ---- Services ---- */
.services {
  padding: 96px 0;
  text-align: center;
  background: var(--off-white);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  text-align: left;
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(27,54,93,0.08);
  border-radius: 10px;
  margin-bottom: 20px;
  color: var(--navy);
}
.service-icon svg { width: 22px; height: 22px; }
.service-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ---- About ---- */
.about {
  padding: 96px 0;
}
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-content h2 { text-align: left; }
.about-content p {
  color: var(--gray-600);
  margin-bottom: 16px;
}
.about-highlights {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--gray-700);
}
.highlight svg { color: var(--red); flex-shrink: 0; }
.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.visual-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--off-white);
  padding: 48px 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}
.visual-flag {
  width: 120px;
  height: 80px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--white);
}
.flag-ca { background: linear-gradient(135deg, #C41E3A, #FF4D6A); }
.flag-cn { background: linear-gradient(135deg, #DE2910, #FFDE00); color: #DE2910; }
.visual-bridge { color: var(--navy); }
.visual-bridge svg { width: 40px; height: 24px; }


/* ---- Contact ---- */
.contact {
  padding: 96px 0;
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 { text-align: left; }
.contact-info > p {
  color: var(--gray-600);
  margin-bottom: 32px;
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.contact-item svg { color: var(--red); margin-top: 2px; flex-shrink: 0; }
.contact-item strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 2px;
}
.contact-item span,
.contact-item a {
  font-size: 0.9rem;
  color: var(--gray-600);
}
.contact-item a:hover { color: var(--red); }

.contact-form {
  background: var(--off-white);
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 0.9rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--gray-800);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(27,54,93,0.1);
}
.form-group textarea { resize: vertical; }
.contact-form .btn { margin-top: 8px; }

/* ---- Footer ---- */
.footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 32px;
}
.footer-inner { text-align: center; }
.footer-brand {
  margin-bottom: 24px;
}
.footer-brand .logo-mark {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}
.footer-brand .logo-text {
  color: var(--white);
  margin-left: 10px;
  font-weight: 700;
  font-size: 1.1rem;
}
.footer-brand p {
  margin-top: 8px;
  font-size: 0.85rem;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-bottom: 32px;
}
.footer-links a {
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
}
.footer-bottom p {
  font-size: 0.8rem;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-content h2 { text-align: center; }
  .about-visual { order: -1; }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-info h2 { text-align: center; }
  .contact-info { text-align: center; }
  .contact-details { align-items: center; }
}

@media (max-width: 640px) {
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-divider { width: 40px; height: 1px; }
  section h2 { font-size: 1.6rem; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  /* Mobile nav */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
}