:root {
  --bg-primary: hsl(220, 13%, 18%);
  --bg-secondary: hsl(217, 33%, 17%);
  --text-primary: hsl(210, 40%, 98%);
  --text-secondary: hsl(215, 20%, 65%);
  --border: hsl(217, 19%, 27%);
  --blue: hsl(207, 90%, 54%);
  --purple: hsl(261, 51%, 51%);
  --green: hsl(144, 76%, 36%);
  --red: hsl(356, 76%, 55%);
  --yellow: hsl(45, 86%, 62%);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(33, 39, 46, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: bold;
}

.nav-brand i {
  color: var(--purple);
  font-size: 1.5rem;
}

.brand-text {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  cursor: pointer;
  font-size: 1.5rem;
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .nav-toggle {
    display: block;
  }
}

/* Buttons */
.btn-primary {
  background: var(--blue);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-hero {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-hero:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 1rem 2rem;
  border-radius: 1rem;
  cursor: pointer;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-ghost:hover {
  color: var(--text-primary);
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-submit:hover:not(:disabled) {
  transform: scale(1.02);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-copy {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-copy:hover {
  color: var(--text-primary);
  border-color: var(--blue);
}

.btn-feedback {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-feedback:hover {
  color: var(--text-primary);
  border-color: var(--blue);
}

.btn-helpful:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn-not-helpful:hover {
  border-color: var(--red);
  color: var(--red);
}

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

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.1) 1px, transparent 0);
  background-size: 40px 40px;
  opacity: 0.2;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 2rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(139, 92, 246, 0.1);
  color: var(--purple);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  border: 1px solid rgba(139, 92, 246, 0.2);
  margin-bottom: 2rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 400px;
  margin: 0 auto;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Form Section */
.form-section {
  padding: 5rem 0;
  background: rgba(33, 39, 46, 0.5);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.form-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.framework-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.framework-option {
  cursor: pointer;
}

.framework-option input {
  display: none;
}

.framework-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  border: 2px solid var(--border);
  border-radius: 1rem;
  transition: all 0.2s;
}

.framework-content i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.framework-content span {
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.framework-option input:checked + .framework-content {
  border-color: var(--blue);
  background: rgba(59, 130, 246, 0.1);
}

.framework-option input:checked + .framework-content i,
.framework-option input:checked + .framework-content span {
  color: var(--blue);
}

.framework-content:hover {
  border-color: var(--blue);
}

.input-group {
  margin-bottom: 2rem;
  position: relative;
}

.input-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.input-group label i {
  color: var(--red);
}

.input-group textarea {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  color: var(--text-primary);
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
  resize: vertical;
  transition: border-color 0.2s;
  min-height: 320px;
  line-height: 1.5;
}

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

.input-group textarea::placeholder {
  color: var(--text-secondary);
}

.char-count {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Solution Display */
.solution-container {
  margin-top: 2rem;
  animation: slideUp 0.3s ease-out;
}

.solution-container.hidden {
  display: none;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.solution-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.success-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(34, 197, 94, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
}

.success-icon i {
  color: var(--green);
}

.solution-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

.solution-content {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.solution-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.solution-meta span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.solution-text {
  color: var(--text-primary);
  line-height: 1.6;
}

.solution-text h5 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.solution-text p {
  margin-bottom: 1rem;
}

.solution-text ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.solution-text li {
  margin-bottom: 0.5rem;
}

.solution-text pre {
  background: #000;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-x: auto;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.4;
}

.solution-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.feature {
  text-align: center;
  padding: 2rem;
}

.feature-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
}

.feature-icon.blue {
  background: rgba(59, 130, 246, 0.2);
  color: var(--blue);
}

.feature-icon.purple {
  background: rgba(139, 92, 246, 0.2);
  color: var(--purple);
}

.feature-icon.green {
  background: rgba(34, 197, 94, 0.2);
  color: var(--green);
}

.feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.feature p {
  color: var(--text-secondary);
}

/* Popular Issues */
.popular-issues {
  padding: 5rem 0;
  background: var(--bg-primary);
}

.issues-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.issue-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: all 0.2s;
  cursor: pointer;
}

.issue-card:hover {
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.issue-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.issue-icon {
  font-size: 1.5rem;
  margin-top: 0.25rem;
}

.issue-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.issue-tool {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: capitalize;
}

.issue-description {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.issue-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--blue);
  transition: color 0.2s;
}

.issue-card:hover .issue-link {
  color: rgba(59, 130, 246, 0.8);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand .brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.footer-brand .brand i {
  color: var(--purple);
}

.footer-brand p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 400px;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: color 0.2s;
}

.social-links a:hover {
  color: var(--blue);
}

.link-group h4 {
  font-weight: 600;
  margin-bottom: 1rem;
}

.link-group a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .framework-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .issues-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .solution-actions {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .form-card {
    padding: 1rem;
  }
  
  .container {
    padding: 0 0.5rem;
  }
}