/* styles.css reviewed and confirmed optimized for static HTML structure. No unused or dynamic classes found. */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #1e3a8a;
  --secondary-color: #3b82f6;
  --accent-color: #60a5fa;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
  font-family: "Inter", sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  /* Ensure fixed navbar doesn't overlap content on small screens */
  padding-top: 72px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo .logo {
  height: 40px;
  width: auto;
}

.company-name {
  font-weight: 600;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--primary-color);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-dark);
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  height: 100vh;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-animation {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-box {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  animation: float 6s ease-in-out infinite;
}

.box-1 {
  width: 80px;
  height: 80px;
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.box-2 {
  width: 60px;
  height: 60px;
  top: 60%;
  right: 15%;
  animation-delay: 2s;
}

.box-3 {
  width: 100px;
  height: 100px;
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

.box-4 {
  width: 70px;
  height: 70px;
  top: 30%;
  right: 30%;
  animation-delay: 1s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

.hero-content {
  text-align: center;
  color: var(--white);
  max-width: 800px;
  padding: 0 20px;
  z-index: 2;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 40px;
  opacity: 0.9;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: var(--white);
  color: var(--primary-color);
}

.btn-primary:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background: var(--white);
  color: var(--primary-color);
}

/* Section Styles */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.section-header p {
  font-size: 1.2rem;
  color: var(--text-light);
}

/* About Section */
.about {
  background: var(--bg-light);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--text-light);
}

.vision-mission {
  margin-top: 40px;
  display: grid;
  gap: 30px;
}

.vision,
.mission {
  background: var(--white);
  padding: 30px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.vision h3,
.mission h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.mission ul {
  list-style: none;
  padding-left: 0;
}

.mission li {
  padding: 8px 0;
  position: relative;
  padding-left: 20px;
}

.mission li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.about-stats {
  display: grid;
  gap: 30px;
}

.stat-item {
  background: var(--white);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-item i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.stat-item h4 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text-dark);
}

/* Facility Section */
.facility-grid {
  display: grid;
  gap: 50px;
}

.facility-category h3 {
  color: var(--primary-color);
  font-size: 1.5rem;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.machine-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.machine-item {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.machine-item:hover {
  transform: translateY(-5px);
}

.machine-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.machine-info {
  padding: 25px;
}

.machine-info h4 {
  color: var(--text-dark);
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.machine-info p {
  color: var(--text-light);
  line-height: 1.6;
}

.certifications {
  margin-top: 60px;
  text-align: center;
}

.certifications h3 {
  color: var(--primary-color);
  font-size: 1.8rem;
  margin-bottom: 30px;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.cert-item {
  background: var(--primary-color);
  color: var(--white);
  padding: 20px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.cert-item i {
  font-size: 1.5rem;
}

/* Customers Section */
.customers {
  background: var(--bg-light);
}

.customer-industries {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.industry-item {
  background: var(--white);
  padding: 40px 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.industry-item:hover {
  transform: translateY(-5px);
}

.industry-item i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.industry-item h3 {
  color: var(--text-dark);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.industry-item p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-item {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 5px;
}

.contact-item h4 {
  color: var(--text-dark);
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.contact-item p {
  color: var(--text-light);
  line-height: 1.6;
}

.contact-form {
  background: var(--bg-light);
  padding: 40px;
  border-radius: 12px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: var(--white);
  padding: 40px 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo .logo {
  height: 35px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-logo .company-name {
  color: var(--white);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--white);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow);
    padding: 20px 0;
    /* make each menu link easier to tap on phones */
    text-align: center;
  }

  .nav-menu li {
    width: 100%;
    padding: 12px 0;
  }
  }

  .nav-menu.active {
    left: 0;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .machine-list {
    grid-template-columns: 1fr;
  }

  .customer-industries {
    grid-template-columns: 1fr;
  }

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

  section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .contact-form {
    padding: 25px;
  }

  .stat-item,
  .industry-item {
    padding: 25px 20px;
  }
}

/* Make slideshow images adapt better on small devices */
@media (max-width: 768px) {
  .slideshow .slide {
    height: auto !important;
    max-height: 340px;
    object-fit: cover;
  }

  .nav-logo .logo { height: 30px; }
  .company-name { font-size: 1rem; }
}