/* ===== Base Styles & Variables ===== */
:root {
  --primary-color: #ed0404;
  --secondary-color: #006400;
  --text-dark: #222;
  --text-light: #fff;
  --bg-light: #f5f5f5;
  --bg-dark: #003c1e;
  --transition-speed: 0.3s;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --border-radius: 8px;
}

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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-speed);
}

/* ===== Layout Components ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-container {
  width: 100%;
  position: relative;
  z-index: 1000;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.custom-color {
    color: white; /* Change to your desired color */
}
h1 {
  font-size: 2.5rem;
  text-align: center;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  line-height: 1.7;
}

.highlight {
  font-weight: bold;
  color: var(--secondary-color);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 1rem 0;
  font-size: 0.875rem;
  text-align: center;
  background-color: #f1f1f1;
  margin: 1rem 0;
}

.breadcrumb a {
  color: var(--primary-color);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('pcbaimages/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  color: var(--text-light);
  padding: 5rem 0;
  text-align: center;
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.cta-box {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--primary-color);
  color: var(--text-light);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: all var(--transition-speed);
}

.btn:hover {
  background-color: #c50303;
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--text-light);
  color: var(--text-light);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: all var(--transition-speed);
}

.btn-outline:hover {
  background-color: var(--text-light);
  color: var(--text-dark);
}

/* ===== PCBA Overview Section ===== */
.pcba-overview {
  padding: 4rem 0;
  background-color: var(--text-light);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.text-content h2 {
  margin-bottom: 1.5rem;
}

.key-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.point {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.point i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.image-content img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

/* ===== PCB Types Section ===== */
.pcb-types {
  padding: 4rem 0;
  background-color: var(--bg-light);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.type-card {
  background-color: var(--text-light);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-speed);
}

.type-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
}

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

.type-card h3 {
  padding: 1rem 1rem 0;
  color: var(--primary-color);
}

.type-card p {
  padding: 0 1rem 1rem;
  font-size: 1rem;
}

/* ===== Assembly Technologies Section ===== */
.assembly-tech {
  padding: 4rem 0;
  background-color: var(--text-light);
}

.tech-tabs {
  margin-top: 2rem;
}

.tab {
  margin-bottom: 1rem;
}

.tab input {
  display: none;
}

.tab label {
  display: block;
  padding: 1rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tab label:hover {
  background-color: #e0e0e0;
}

.tab label i {
  color: var(--primary-color);
}

.tab input:checked + label {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.tab input:checked + label i {
  color: var(--text-light);
}

.tab-content {
  display: none;
  padding: 1.5rem 0;
}

.tab input:checked ~ .tab-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.tab-content img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.tab-content ul {
  margin-top: 1rem;
  padding-left: 1.5rem;
}

.tab-content li {
  margin-bottom: 0.75rem;
  position: relative;
}

/* ===== Quality Assurance Section ===== */
.quality-section {
  padding: 4rem 0;
  background-color: var(--bg-light);
}

.qa-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.qa-item {
  background-color: var(--text-light);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-speed);
}

.qa-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.qa-item i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.qa-item h3 {
  margin-bottom: 0.75rem;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 4rem 0;
  background-color: var(--primary-color);
  color: var(--text-light);
  text-align: center;
}

.cta-section h2 {
  color: var(--text-light);
}

.cta-section p {
  max-width: 700px;
  margin: 0 auto 2rem;
}

/* ===== AOS Animations ===== */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
}

[data-aos].aos-animate {
  opacity: 1;
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
  transform: translateY(0);
}

[data-aos="fade-right"] {
  transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
  transform: translateX(0);
}

[data-aos="fade-left"] {
  transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
  transform: translateX(0);
}

/* ===== Media Queries ===== */
@media (max-width: 992px) {
  .content-grid,
  .tab-content {
    grid-template-columns: 1fr;
  }
  
  .image-content {
    order: -1;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 3rem 0;
  }
  
  .hero .subtitle {
    font-size: 1.25rem;
  }
  
  .cta-box {
    flex-direction: column;
    align-items: center;
  }
  
  .btn, .btn-outline {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .types-grid {
    grid-template-columns: 1fr;
  }
  
  .tab-content {
    padding: 1rem 0;
  }
}