/* ========================================
   ThinSky Shared Styles - SKYOS Design System
   ======================================== */

:root {
  --color-bg: #0F172A;
  --color-surface: #1E293B;
  --color-surface-elevated: #334155;
  --color-text: #F8FAFC;
  --color-text-muted: #94A3B8;
  --color-primary: #0C96D7;
  --color-primary-hover: #3DB2E9;
  --color-primary-glow: rgba(12, 150, 215, 0.2);
  --color-success: #10B981;
  --color-success-glow: rgba(16, 185, 129, 0.3);
  --color-error: #EF4444;
  --color-warning: #F59E0B;
  --color-border: #475569;
  --color-canada-red: #FF0000;
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 12px; --radius-xl: 16px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 200ms; --duration-slow: 400ms;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Skip to Content */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  z-index: 100;
  transition: top 0.3s;
}
.skip-link:focus { top: 0; }

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.5rem;
}
.nav-logo .maple-leaf {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}
.nav-logo svg:first-child {
  height: 32px;
  width: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--duration) var(--ease);
}
.nav-links a:hover { color: var(--color-text); }
.nav-dropdown {
  position: relative;
}
.nav-dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--duration) var(--ease);
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}
.nav-dropdown:hover .nav-dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown-content a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}
.nav-dropdown-content a:hover {
  background: var(--color-surface-elevated);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
}
.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-primary-glow);
}
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}
.btn-success {
  background: var(--color-success);
  color: white;
}
.btn-success:hover {
  background: #059669;
}
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1.1rem;
}
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: 0.85rem;
}

/* Page Header */
.page-header {
  padding: calc(var(--space-24) + 60px) 0 var(--space-16);
  text-align: center;
  position: relative;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, var(--color-primary-glow) 0%, transparent 60%);
  pointer-events: none;
}
.page-header h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--color-text), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-header .subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Sections */
.section {
  padding: var(--space-20) 0;
  position: relative;
}
.section-dark { background: var(--color-surface); }
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-4);
  text-align: center;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration) var(--ease);
}
.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(12, 150, 215, 0.1);
}
.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-glow);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  color: var(--color-primary);
  font-size: 1.5rem;
}
.card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}
.card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

/* Terminal Card */
.terminal {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: var(--font-mono);
}
.terminal-header {
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.terminal-dot.red { background: #EF4444; }
.terminal-dot.yellow { background: #F59E0B; }
.terminal-dot.green { background: #10B981; }
.terminal-body {
  padding: var(--space-6);
  font-size: 0.9rem;
  line-height: 1.8;
}
.terminal-body .prompt { color: var(--color-success); }
.terminal-body .command { color: var(--color-text); }
.terminal-body .output { color: var(--color-text-muted); }
.terminal-body .highlight { color: var(--color-primary); }

/* Feature List */
.feature-list {
  list-style: none;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  color: var(--color-text-muted);
}
.feature-list .check {
  color: var(--color-success);
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* Pricing Table */
.pricing-card {
  text-align: center;
  position: relative;
}
.pricing-card.featured {
  border-color: var(--color-primary);
  transform: scale(1.05);
}
.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}
.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  margin: var(--space-4) 0;
}
.pricing-price span {
  font-size: 1rem;
  color: var(--color-text-muted);
}

/* Stats */
.stats {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  padding: var(--space-8) 0;
}
.stat {
  text-align: center;
}
.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
}
.stat-label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Testimonials */
.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
}
.testimonial-quote {
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.testimonial-author {
  font-weight: 600;
}
.testimonial-role {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}
.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  font-size: 0.9rem;
}
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: border-color var(--duration) var(--ease);
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.footer-brand .maple-leaf {
  width: 24px;
  height: 24px;
}
.footer-brand svg:first-child {
  height: 28px;
  width: auto;
}
.footer-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.footer-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}
.footer-links {
  list-style: none;
}
.footer-links li { margin-bottom: var(--space-2); }
.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--duration) var(--ease);
}
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.footer-legal {
  display: flex;
  gap: var(--space-6);
}
.footer-legal a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}
.footer-legal a:hover { color: var(--color-text); }
.footer-copyright {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.badge-success {
  border-color: var(--color-success);
  color: var(--color-success);
}
.badge-primary {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs span { color: var(--color-text); }

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stats { flex-direction: column; gap: var(--space-6); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; gap: var(--space-4); text-align: center; }
  .pricing-card.featured { transform: scale(1); }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-4); }
  .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeIn 0.6s var(--ease) forwards;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}