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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  color: #1f2937;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  padding-top: 64px;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 50;
  border-bottom: 1px solid #e5e7eb;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: #111827;
  text-decoration: none;
}

.nav-links {
  display: none;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #4b5563;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #0d9488;
}

.nav-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: #4b5563;
}

.nav-toggle:hover {
  color: #0d9488;
}

.mobile-menu {
  display: none;
  border-top: 1px solid #e5e7eb;
  background: white;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #4b5563;
  text-decoration: none;
  transition: color 0.2s;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: #0d9488;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

footer {
  background: #111827;
  color: #d1d5db;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-section h3 {
  color: white;
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-section p,
.footer-section li {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

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

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-section a:hover {
  color: #5eead4;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
}

.hero {
  background: linear-gradient(to bottom right, #f9fafb, #f3f4f6);
  padding: 5rem 1rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero .subtitle {
  font-size: 1.5rem;
  color: #4b5563;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.125rem;
  font-weight: 500;
  color: #000000;
  margin-bottom: 2rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .hero h1 {
    font-size: 3.75rem;
  }

  .btn-group {
    flex-direction: row;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-weight: 500;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: #0d9488;
  color: white;
}

.btn-primary:hover {
  background: #0f766e;
}

.btn-secondary {
  background: white;
  color: #0d9488;
  border: 2px solid #0d9488;
}

.btn-secondary:hover {
  background: #f0fdfa;
}

.section {
  padding: 4rem 1rem;
}

.section-gray {
  background: #f9fafb;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

.container-narrow {
  max-width: 56rem;
  margin: 0 auto;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.25rem;
  color: #4b5563;
  margin-bottom: 3rem;
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.grid {
  display: grid;
  gap: 2rem;
}

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

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: #ccfbf1;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.card-icon svg {
  color: #0d9488;
  width: 1.75rem;
  height: 1.75rem;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #111827;
  margin-bottom: 0.75rem;
}

.card p {
  color: #4b5563;
  line-height: 1.6;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: #374151;
}

.feature-list svg {
  color: #0d9488;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: all 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: #0d9488;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

textarea.form-control {
  resize: none;
  font-family: inherit;
}

.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-success {
  background: #d1fae5;
  border: 1px solid #6ee7b7;
  color: #065f46;
}

.alert-error {
  background: #fee2e2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}

.badge {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.badge-default {
  background: white;
  color: #374151;
  border: 1px solid #d1d5db;
}

.badge-default:hover {
  background: #f3f4f6;
}

.badge-active {
  background: #0d9488;
  color: white;
}

.timeline {
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 2rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #ccfbf1;
  display: none;
}

@media (min-width: 768px) {
  .timeline::before {
    display: block;
  }
}

.timeline-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .timeline-item {
    flex-direction: row;
  }
}

.timeline-icon {
  width: 4rem;
  height: 4rem;
  background: #0d9488;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.timeline-icon svg {
  color: white;
  width: 1.75rem;
  height: 1.75rem;
}

.timeline-content {
  flex-grow: 1;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 1.5rem;
}

.timeline-badge {
  font-size: 0.875rem;
  font-weight: 600;
  color: #0d9488;
  margin-bottom: 0.75rem;
}

.timeline-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #111827;
  margin-bottom: 0.5rem;
}

.timeline-content p {
  color: #4b5563;
  line-height: 1.6;
}

.highlight-box {
  background: #f0fdfa;
  border: 1px solid #5eead4;
  border-radius: 0.5rem;
  padding: 2rem;
}

.portfolio-image {
  background: linear-gradient(to bottom right, #ccfbf1, #99f6e4);
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem 0.5rem 0 0;
}

.portfolio-image svg {
  color: #0d9488;
  width: 4rem;
  height: 4rem;
}

.text-center {
  text-align: center;
}

.hidden {
  display: none !important;
}

.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.gap-2 {
  gap: 0.5rem;
}