/* Dark Theme SEM Expert Website with Tennessee Mountains */

:root {
  --primary-color: #3b82f6;
  --accent-color: #60a5fa;
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f2e;
  --bg-tertiary: #252b3f;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: #334155;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  font-weight: 400;
}

.page-container {
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Navigation - Dark Theme */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 20, 25, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.95rem;
  transition: var(--transition);
}

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

.work-together-btn {
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.work-together-btn:hover {
  background: var(--accent-color);
  transform: translateY(-1px);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.mountains-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    /* Subtle mountain silhouettes */
    radial-gradient(ellipse at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
  opacity: 0.6;
}

.mountains-bg::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 300px;
  background: 
    /* Rolling mountain outline - very subtle */
    polygon(0% 100%, 0% 85%, 15% 75%, 25% 80%, 35% 70%, 45% 75%, 55% 65%, 65% 70%, 75% 60%, 85% 65%, 100% 55%, 100% 100%);
  background-color: rgba(37, 43, 63, 0.3);
  clip-path: polygon(0% 100%, 0% 85%, 15% 75%, 25% 80%, 35% 70%, 45% 75%, 55% 65%, 65% 70%, 75% 60%, 85% 65%, 100% 55%, 100% 100%);
}

.mountains-bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background-color: rgba(26, 31, 46, 0.4);
  clip-path: polygon(0% 100%, 0% 90%, 20% 85%, 30% 88%, 40% 82%, 50% 86%, 60% 80%, 70% 84%, 80% 78%, 90% 82%, 100% 76%, 100% 100%);
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 2rem;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.hero-location {
  font-size: 1rem;
  color: var(--text-muted);
  font-style: italic;
}

.awards-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.award-item {
  font-size: 1rem;
  color: var(--accent-color);
  font-weight: 500;
}

/* Sections */
section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

section:nth-child(even) {
  background: var(--bg-secondary);
}

section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--text-primary);
  text-align: center;
}

/* About Section */
.about-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Experience Section */
.experience-item {
  margin-bottom: 4rem;
  padding: 2rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.experience-item h3 {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.role {
  font-size: 1.1rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.awards-section {
  margin-bottom: 4rem;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(96, 165, 250, 0.05));
  border-radius: var(--border-radius);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.awards-section h3 {
  font-size: 2rem;
  color: var(--accent-color);
  margin-bottom: 2rem;
  text-align: center;
}

.award-item-detailed {
  margin-bottom: 2.5rem;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius);
  border: 1px solid rgba(59, 130, 246, 0.1);
}

.award-item-detailed:last-child {
  margin-bottom: 0;
}

.award-item-detailed h4 {
  font-size: 1.3rem;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.award-category {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 1rem;
  font-style: italic;
}

.award-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.award-link {
  display: inline-block;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.award-link:hover {
  background: var(--accent-color);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

.specialties h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
}

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

.specialty-item {
  padding: 2rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.specialty-item h4 {
  font-size: 1.2rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.specialty-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Services Section */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.service-item {
  padding: 2.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.service-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.service-item h3 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.service-item p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Contact Section */
.contact-section {
  background: var(--bg-secondary);
  text-align: center;
}

.contact-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  text-align: center;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
  text-align: left;
}

.contact-item {
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.contact-item strong {
  color: var(--text-primary);
  margin-right: 0.5rem;
}

.contact-item a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.contact-item a:hover {
  color: var(--text-primary);
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  padding: 3rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.submit-btn {
  width: 100%;
  padding: 1rem 2rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.submit-btn:hover {
  background: var(--accent-color);
  transform: translateY(-1px);
}

/* Footer */
.footer {
  padding: 3rem 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.footer p:first-child {
  color: var(--text-primary);
  font-weight: 500;
}

.footer a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.footer a:hover {
  color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .nav-menu {
    gap: 1rem;
  }
  
  .nav-link, .work-together-btn {
    font-size: 0.9rem;
  }
  
  .work-together-btn {
    padding: 0.4rem 1rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  section {
    padding: 4rem 0;
  }
  
  section h2 {
    font-size: 2rem;
  }
  
  .specialty-list {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .awards-list {
    font-size: 0.9rem;
  }
  
  .award-item {
    font-size: 0.9rem;
  }
  
  .nav-container {
    padding: 1rem;
  }
  
  .nav-menu {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .hero-content {
    padding: 1rem;
  }
  
  .mountains-bg::before {
    height: 150px;
  }
  
  .mountains-bg::after {
    height: 100px;
  }
  
  .awards-section {
    padding: 2rem;
  }
  
  .award-item-detailed {
    padding: 1.5rem;
  }
}

/* Smooth animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.experience-item,
.service-item,
.specialty-item,
.contact-item {
  animation: fadeInUp 0.6s ease-out;
}

/* Print Styles */
@media print {
  .navbar,
  .contact-form {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}