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

:root {
  --color-primary: #1e293b;
  --color-secondary: #334155;
  --color-accent: #0ea5e9;
  --color-text: #1e293b;
  --color-text-light: #475569;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-border: #e2e8f0;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  /* Prevent horizontal scroll */
  overflow-x: hidden;
  width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  /* Responsive padding with minimum for mobile */
  padding: 0 clamp(1rem, 4vw, 1.5rem);
  width: 100%;
}

header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  /* Prevent overflow */
  width: 100%;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  /* Responsive padding */
  padding: clamp(0.75rem, 2vw, 1.5rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  /* Wrap navigation on small screens */
  flex-wrap: wrap;
  width: 100%;
}

.logo {
  /* Responsive font size */
  font-size: clamp(1rem, 4vw, 1.25rem);
  font-weight: 600;
  color: var(--color-primary);
  /* Prevent text wrapping */
  white-space: nowrap;
}

.nav-links {
  display: flex;
  /* Responsive gap */
  gap: clamp(0.75rem, 3vw, 2rem);
  /* Allow wrapping if needed */
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  /* Responsive font size */
  font-size: clamp(0.875rem, 2vw, 1rem);
}

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

.hero {
  background-color: var(--color-bg-alt);
  /* Responsive padding */
  padding: clamp(2rem, 8vw, 4rem) 0;
  width: 100%;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  /* Responsive padding */
  padding: 0 clamp(1rem, 4vw, 1.5rem);
  width: 100%;
}

.hero-content {
  max-width: 800px;
  width: 100%;
}

h1 {
  /* Fluid responsive font size */
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
  font-weight: 700;
  /* Better word wrapping */
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.hero-subtitle {
  /* Responsive font size */
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  line-height: 1.6;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  word-wrap: break-word;
}

.hero-cta {
  display: flex;
  /* Responsive gap */
  gap: clamp(0.75rem, 3vw, 1.5rem);
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  /* Responsive padding */
  padding: clamp(0.75rem, 2vw, 0.875rem) clamp(1.25rem, 3vw, 1.75rem);
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: 2px solid transparent;
  /* Responsive font size */
  font-size: clamp(0.9375rem, 2vw, 1rem);
  text-align: center;
  /* Full width on very small screens */
  min-width: max-content;
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.stats {
  /* Responsive padding */
  padding: clamp(2rem, 6vw, 3rem) 0;
  background-color: var(--color-bg);
  width: 100%;
}

.stats-grid {
  display: grid;
  /* Better responsive grid - 2 cols on mobile, 4 on desktop */
  grid-template-columns: repeat(auto-fit, minmax(clamp(140px, 40vw, 250px), 1fr));
  gap: clamp(1rem, 3vw, 2rem);
  width: 100%;
}

.stat-item {
  text-align: center;
  /* Responsive padding */
  padding: clamp(1rem, 3vw, 2rem);
}

.stat-number {
  /* Responsive font size */
  font-size: clamp(2rem, 6vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--color-text-light);
  /* Responsive font size */
  font-size: clamp(0.8125rem, 2vw, 0.875rem);
  word-wrap: break-word;
}

section {
  /* Responsive padding */
  padding: clamp(2rem, 8vw, 4rem) 0;
  width: 100%;
}

h2 {
  /* Responsive font size */
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
  font-weight: 700;
  word-wrap: break-word;
}

h3 {
  /* Responsive font size */
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
  font-weight: 600;
  word-wrap: break-word;
}

.section-intro {
  /* Responsive font size */
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
  max-width: 800px;
  line-height: 1.6;
}

.courses {
  background-color: var(--color-bg-alt);
}

.courses-grid {
  display: grid;
  /* Single column on mobile, auto-fit on larger screens */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: clamp(1rem, 3vw, 2rem);
  width: 100%;
}

.course-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  /* Responsive padding */
  padding: clamp(1.25rem, 4vw, 2rem);
  position: relative;
  width: 100%;
}

.course-card.featured {
  border-color: var(--color-accent);
  border-width: 2px;
}

.badge {
  position: absolute;
  top: -12px;
  right: clamp(0.75rem, 3vw, 1.5rem);
  background-color: var(--color-accent);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: clamp(0.8125rem, 2vw, 0.875rem);
  font-weight: 600;
}

.course-card h3 {
  margin-top: 0;
}

.course-card p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.course-card ul {
  list-style: none;
  padding: 0;
}

.course-card ul li {
  padding: 0.5rem 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: clamp(0.8125rem, 2vw, 0.875rem);
}

.benefits-content {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  width: 100%;
}

.benefits-text p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
  line-height: 1.7;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.benefits-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0;
}

.benefits-list li {
  padding: 0.75rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text);
  line-height: 1.6;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.benefits-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.benefits-table {
  background-color: var(--color-bg-alt);
  /* Responsive padding */
  padding: clamp(1rem, 3vw, 2rem);
  border-radius: 0.75rem;
  margin-top: var(--spacing-lg);
  /* Allow horizontal scroll on very small screens */
  overflow-x: auto;
  width: 100%;
}

table {
  /* Use min-width instead of fixed width to allow scrolling */
  min-width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-md);
}

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

th,
td {
  /* Responsive padding */
  padding: clamp(0.625rem, 2vw, 0.875rem);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  /* Prevent text overflow */
  white-space: nowrap;
}

th {
  font-weight: 600;
  font-size: clamp(0.8125rem, 2vw, 0.875rem);
}

td {
  color: var(--color-text);
  font-size: clamp(0.8125rem, 2vw, 0.875rem);
}

tbody tr:hover {
  background-color: var(--color-bg-alt);
}

.topics {
  background-color: var(--color-bg-alt);
}

.topics-grid {
  display: grid;
  /* Better responsive grid */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: clamp(1rem, 3vw, 1.5rem);
  width: 100%;
}

.topic-card {
  background-color: var(--color-bg);
  /* Responsive padding */
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: 0.5rem;
  border: 1px solid var(--color-border);
  width: 100%;
}

.topic-card h3 {
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  margin-bottom: var(--spacing-sm);
}

.topic-card p {
  color: var(--color-text-light);
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
  line-height: 1.6;
}

.certification {
  background-color: var(--color-bg);
}

.cert-list {
  display: grid;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  margin-top: var(--spacing-lg);
  width: 100%;
}

.cert-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  /* Responsive padding */
  padding: clamp(1rem, 3vw, 1.5rem);
  background-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent);
  border-radius: 0.25rem;
  width: 100%;
}

.cert-item strong {
  color: var(--color-primary);
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  word-wrap: break-word;
}

.cert-item span {
  color: var(--color-text-light);
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
}

.target-audience {
  background-color: var(--color-bg-alt);
}

.audience-grid {
  display: grid;
  /* Better responsive grid */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: clamp(1rem, 3vw, 2rem);
  width: 100%;
}

.audience-card {
  background-color: var(--color-bg);
  /* Responsive padding */
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: 0.75rem;
  border: 1px solid var(--color-border);
  width: 100%;
}

.audience-card h3 {
  margin-bottom: var(--spacing-sm);
}

.audience-card p {
  color: var(--color-text-light);
  line-height: 1.6;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.contact {
  background-color: var(--color-bg);
}

.contact-content {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  width: 100%;
  /* Stack on mobile, side-by-side on tablet+ */
  grid-template-columns: 1fr;
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-item strong {
  color: var(--color-primary);
  font-weight: 600;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.contact-item span {
  color: var(--color-text-light);
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
}

.contact-link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

.contact-link:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.contact-form {
  background-color: var(--color-bg-alt);
  /* Responsive padding */
  padding: clamp(1.25rem, 4vw, 2rem);
  border-radius: 0.75rem;
  border: 1px solid var(--color-border);
  width: 100%;
}

.contact-form h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-weight: 500;
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
}

.form-group input,
.form-group select {
  width: 100%;
  /* Responsive padding */
  padding: clamp(0.625rem, 2vw, 0.75rem);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  font-size: clamp(0.9375rem, 2vw, 1rem);
  font-family: inherit;
  /* Better mobile input handling */
  max-width: 100%;
}

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

.contact-form button {
  width: 100%;
  cursor: pointer;
  border: none;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

.faq {
  background-color: var(--color-bg-alt);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  width: 100%;
}

.faq-item {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  /* Responsive padding */
  padding: clamp(1rem, 3vw, 1.5rem);
  width: 100%;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  font-size: clamp(0.9375rem, 2.5vw, 1.0625rem);
  list-style: none;
  user-select: none;
  word-wrap: break-word;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "+";
  display: inline-block;
  margin-right: 0.75rem;
  font-size: 1.25rem;
  color: var(--color-accent);
}

.faq-item[open] summary::before {
  content: "−";
}

.faq-item p {
  margin-top: var(--spacing-md);
  color: var(--color-text-light);
  line-height: 1.6;
  font-size: clamp(0.9375rem, 2vw, 1rem);
}

footer {
  background-color: var(--color-primary);
  color: white;
  /* Responsive padding */
  padding: clamp(2rem, 5vw, 3rem) 0 clamp(1rem, 3vw, 2rem);
  width: 100%;
}

.footer-content {
  display: grid;
  /* Stack on mobile, 3 cols on desktop */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-bottom: var(--spacing-lg);
  width: 100%;
}

.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-size: clamp(1rem, 2.5vw, 1.125rem);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
}

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

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

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s;
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: clamp(0.8125rem, 2vw, 0.875rem);
}

/* Mobile-specific optimizations */
@media (max-width: 480px) {
  .nav-links {
    width: 100%;
    justify-content: space-around;
    margin-top: 0.5rem;
  }

  .hero-cta {
    width: 100%;
  }

  .hero-cta a {
    flex: 1;
    min-width: 0;
  }

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

  th,
  td {
    font-size: 0.75rem;
    padding: 0.5rem 0.25rem;
  }
}

/* Tablet optimization */
@media (min-width: 768px) {
  .contact-content {
    grid-template-columns: 1fr 1fr;
  }

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

/* Desktop optimization */
@media (min-width: 1024px) {
  .nav-links {
    gap: 2rem;
  }
}