/* BSOT Marketing Site - Custom Styles */

/* CSS Custom Properties */
:root {
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-accent-cyan: #06b6d4;
  --color-accent-violet: #8b5cf6;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: #334155;
  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-error: #ef4444;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --shadow-glow-cyan: 0 0 30px rgba(6, 182, 212, 0.3);
  --shadow-glow-violet: 0 0 30px rgba(139, 92, 246, 0.3);
}

/* Global Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Pattern */
.bg-grid-pattern {
  background-image: 
    linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.bg-gradient-radial {
  background: radial-gradient(ellipse at top, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at bottom right, rgba(139, 92, 246, 0.1) 0%, transparent 40%);
}

/* Navigation */
.nav-blur {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-link {
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-violet));
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 100%;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-violet));
  color: var(--color-bg-primary);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  font-weight: 500;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  border-color: var(--color-accent-cyan);
  background-color: rgba(6, 182, 212, 0.1);
}

/* Cards */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.card-violet:hover {
  border-color: var(--color-accent-violet);
  box-shadow: var(--shadow-glow-violet);
}

/* Terminal/Code Blocks */
.terminal {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.terminal-header {
  background: var(--color-bg-secondary);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #eab308; }
.terminal-dot.green { background: #22c55e; }

.terminal-body {
  padding: 1rem;
  overflow-x: auto;
}

.terminal-line {
  display: flex;
  margin-bottom: 0.25rem;
}

.terminal-prompt {
  color: var(--color-accent-cyan);
  margin-right: 0.5rem;
  user-select: none;
}

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

.terminal-output {
  color: var(--color-text-secondary);
  margin-left: 1.5rem;
}

/* Code Copy Button */
.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--color-bg-tertiary);
  border: none;
  color: var(--color-text-secondary);
  padding: 0.5rem;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  opacity: 0;
}

.terminal:hover .copy-btn,
.code-block:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover {
  color: var(--color-accent-cyan);
  background: var(--color-bg-secondary);
}

.copy-btn.copied {
  color: var(--color-success);
}

/* Module Grid */
.module-card {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.25rem;
  text-align: center;
  transition: all var(--transition-base);
}

.module-card:hover {
  border-color: var(--color-accent-cyan);
  transform: scale(1.02);
}

.module-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 0.75rem;
  color: var(--color-accent-cyan);
}

.module-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.module-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Scroll Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Accent Underline */
.accent-underline {
  position: relative;
  display: inline-block;
}

.accent-underline::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-violet));
  border-radius: 2px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent-cyan);
}

/* Section Styles */
section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

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

.footer-link {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-cyan);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-bg-primary);
  z-index: 100;
  display: none;
  flex-direction: column;
  padding: 2rem;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu-link {
  padding: 1rem 0;
  font-size: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .section-title {
    font-size: 1.875rem;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .show-mobile {
    display: none !important;
  }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* Typing animation */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--color-accent-cyan);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}

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

/* Glow effect on hero */
.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  pointer-events: none;
}

.hero-glow.cyan {
  background: var(--color-accent-cyan);
  top: -100px;
  left: 20%;
}

.hero-glow.violet {
  background: var(--color-accent-violet);
  bottom: -100px;
  right: 20%;
}