/* SkillForge Landing Page Styles */
/* Dark mode, developer tool aesthetic */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --bg-card: #14141c;
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-dim: #4f46e5;
  --border: #27272a;
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
  --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 18px;
}

.logo svg {
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--accent);
  color: white !important;
  padding: 8px 16px;
  border-radius: 8px;
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--accent-hover);
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  background: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

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

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

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--text-muted);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* CLI Demo */
.cli-demo {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
  box-shadow: var(--shadow);
}

.cli-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

.cli-dots {
  display: flex;
  gap: 6px;
}

.cli-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.cli-dots span:nth-child(1) { background: #ef4444; }
.cli-dots span:nth-child(2) { background: #eab308; }
.cli-dots span:nth-child(3) { background: #22c55e; }

.cli-title {
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.cli-body {
  padding: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  min-height: 120px;
}

.cli-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cli-prompt {
  color: var(--accent);
  font-weight: 500;
}

.cli-command {
  color: var(--text-primary);
}

.cli-cursor {
  width: 8px;
  height: 18px;
  background: var(--accent);
  animation: blink 1s step-end infinite;
}

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

.cli-output {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.cli-success {
  color: var(--success);
  margin-bottom: 8px;
}

.cli-path {
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.cli-files {
  color: var(--text-muted);
  font-size: 13px;
}

/* Problem Section */
.problem {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.problem-content h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 20px;
}

.problem-content > p {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.problem-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.badge {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-muted);
}

.problem-solution {
  color: var(--text-primary) !important;
  font-size: 18px !important;
}

/* Section Styles */
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-secondary);
  text-align: center;
  font-size: 17px;
  margin-bottom: 60px;
}

/* How It Works */
.how-it-works {
  padding: 100px 0;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin: 0 auto 16px;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.step-arrow {
  font-size: 32px;
  color: var(--text-muted);
  padding-top: 8px;
}

/* Features */
.features {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.2s;
}

.feature-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* Pricing */
.pricing {
  padding: 100px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 100%);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.pricing-tier {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 24px;
}

.pricing-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.pricing-features li.disabled {
  color: var(--text-muted);
  text-decoration: line-through;
}

.pricing-card .btn {
  width: 100%;
  justify-content: center;
}

/* Install Section */
.install {
  padding: 100px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.install h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  margin-top: 32px;
}

.install-usage h3 {
  text-align: center;
}

.code-block {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.code-label {
  position: absolute;
  top: 12px;
  left: 16px;
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.code-block pre {
  padding: 48px 20px 20px;
  overflow-x: auto;
}

.code-block code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--text-primary);
  white-space: pre;
}

.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Footer */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 12px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 0;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .steps {
    flex-direction: column;
    align-items: center;
  }
  
  .step-arrow {
    transform: rotate(90deg);
  }
  
  .pricing-grid {
    grid-direction: column;
  }
  
  .footer-content {
    flex-direction: column;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 32px;
  }
}