/* ==========================================================================
   BDQP.IN - High Performance Modern Design System
   Welcoming Rudra - Project Manager | ChatRoulette Competitor Architecture
   Parent Company Showcase: A Sister Venture of Xisto.com
   ========================================================================== */

:root {
  --bg-primary: #090c15;
  --bg-secondary: #0f1523;
  --bg-card: rgba(18, 24, 38, 0.7);
  --bg-card-hover: rgba(28, 38, 60, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.4);
  --border-cyan: rgba(6, 182, 212, 0.4);
  --border-xisto: rgba(245, 158, 11, 0.35);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
  --gradient-cyan: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-radar: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-xisto: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #ea580c 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px -5px rgba(99, 102, 241, 0.3);
  --shadow-radar: 0 0 40px -5px rgba(236, 72, 153, 0.35);
  --shadow-xisto: 0 0 40px -5px rgba(245, 158, 11, 0.25);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Glow Orbs */
.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.35;
}

.orb-1 {
  top: -10%;
  left: 20%;
  width: 500px;
  height: 500px;
  background: var(--accent-indigo);
}

.orb-2 {
  bottom: 10%;
  right: 10%;
  width: 450px;
  height: 450px;
  background: var(--accent-purple);
}

.orb-3 {
  top: 50%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: var(--accent-cyan);
}

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

/* Header & Navbar */
header.site-header {
  padding: 18px 0;
  border-bottom: 1px solid var(--border-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9, 12, 21, 0.88);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-name span {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

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

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: #34d399;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Hero Section */
.hero-section {
  padding: 60px 0 50px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: #a5b4fc;
  margin-bottom: 24px;
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.2);
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-radar-text {
  background: var(--gradient-radar);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-xisto-text {
  background: var(--gradient-xisto);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 36px;
}

/* Executive Leadership Showcase Grid */
.exec-leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 1140px;
  margin: 0 auto 50px;
  text-align: left;
}

.exec-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.04) 0%, rgba(99, 102, 241, 0.06) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.exec-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0.8;
}

.exec-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
}

.exec-card-ceo {
  border-color: rgba(96, 165, 250, 0.3);
}
.exec-card-ceo::before {
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}
.exec-card-ceo:hover {
  border-color: rgba(96, 165, 250, 0.6);
  box-shadow: 0 16px 36px rgba(59, 130, 246, 0.18);
}

.exec-card-cfo {
  border-color: rgba(52, 211, 153, 0.3);
}
.exec-card-cfo::before {
  background: linear-gradient(90deg, #10b981, #06b6d4);
}
.exec-card-cfo:hover {
  border-color: rgba(52, 211, 153, 0.6);
  box-shadow: 0 16px 36px rgba(16, 185, 129, 0.18);
}

.exec-card-pm {
  border-color: rgba(244, 114, 182, 0.3);
}
.exec-card-pm::before {
  background: linear-gradient(90deg, #ec4899, #6366f1);
}
.exec-card-pm:hover {
  border-color: rgba(244, 114, 182, 0.6);
  box-shadow: 0 16px 36px rgba(236, 72, 153, 0.18);
}

.exec-card-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.exec-avatar-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.exec-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.exec-avatar {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 2px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.35);
}

.avatar-ceo {
  background: linear-gradient(135deg, #1e293b 0%, #1e3a8a 100%);
  border-color: rgba(96, 165, 250, 0.4);
}

.avatar-cfo {
  background: linear-gradient(135deg, #064e3b 0%, #0f766e 100%);
  border-color: rgba(52, 211, 153, 0.4);
}

.avatar-pm {
  background: linear-gradient(135deg, #3b0764 0%, #4c1d95 100%);
  border-color: rgba(244, 114, 182, 0.4);
}

.exec-pill-tag {
  position: absolute;
  bottom: -6px;
  right: -6px;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  color: #fff;
}

.exec-card-ceo .exec-pill-tag {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.exec-card-cfo .exec-pill-tag {
  background: linear-gradient(135deg, #059669, #0891b2);
}

.exec-card-pm .exec-pill-tag {
  background: linear-gradient(135deg, #db2777, #4f46e5);
}

.exec-header-text h3 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.exec-role {
  font-size: 0.88rem;
  font-weight: 600;
}

.role-ceo {
  color: #60a5fa;
}

.role-cfo {
  color: #34d399;
}

.role-pm {
  color: #f472b6;
}

.exec-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.exec-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.exec-tags .tag {
  font-size: 0.78rem;
  padding: 4px 10px;
}

/* PM Welcome Card (Legacy Compatibility) */
.pm-showcase-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(99, 102, 241, 0.08) 100%);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 950px;
  margin: 0 auto 50px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transition: var(--transition);
}

.pm-showcase-card:hover {
  border-color: rgba(99, 102, 241, 0.5);
  transform: translateY(-3px);
}

.pm-grid {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 32px;
  align-items: center;
  text-align: left;
}

.pm-avatar-wrap {
  position: relative;
}

.pm-avatar {
  width: 130px;
  height: 130px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #1e1e38 0%, #2a2b56 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.2rem;
  border: 2px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.pm-badge-float {
  position: absolute;
  bottom: -8px;
  right: -8px;
  background: var(--gradient-primary);
  color: #fff;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.6);
}

.pm-info h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #ffffff;
}

.pm-role {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.pm-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 18px;
  line-height: 1.6;
}

.pm-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Action Buttons */
.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.6);
  transform: translateY(-2px);
}

.btn-radar {
  background: var(--gradient-radar);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(236, 72, 153, 0.4);
}

.btn-radar:hover {
  box-shadow: 0 6px 25px rgba(236, 72, 153, 0.6);
  transform: translateY(-2px);
}

.btn-xisto {
  background: var(--gradient-xisto);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
}

.btn-xisto:hover {
  box-shadow: 0 6px 25px rgba(245, 158, 11, 0.6);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Tutorial Section */
.tutorial-section {
  padding: 50px 0;
  position: relative;
}

.directive-banner {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(245, 158, 11, 0.1) 100%);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 40px;
  position: relative;
  box-shadow: 0 10px 30px rgba(239, 68, 68, 0.1);
}

.directive-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.directive-banner h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.directive-banner p {
  color: #f1f5f9;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ChatRoulette Project Target Section */
.project-target-section {
  padding: 60px 0;
  position: relative;
}

.target-hero-card {
  background: linear-gradient(145deg, rgba(236, 72, 153, 0.12) 0%, rgba(99, 102, 241, 0.15) 100%);
  border: 1px solid rgba(236, 72, 153, 0.35);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 40px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), var(--shadow-radar);
}

.target-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(236, 72, 153, 0.2);
  border: 1px solid rgba(236, 72, 153, 0.4);
  color: #f472b6;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.target-hero-card h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.target-hero-card p {
  color: #e2e8f0;
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 900px;
}

/* Architecture Pillar Cards for ChatRoulette */
.roulette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.roulette-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.roulette-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-radar);
  opacity: 0;
  transition: var(--transition);
}

.roulette-card:hover {
  border-color: rgba(236, 72, 153, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.roulette-card:hover::before {
  opacity: 1;
}

.roulette-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: rgba(236, 72, 153, 0.15);
  border: 1px solid rgba(236, 72, 153, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.roulette-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.roulette-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   XISTO.COM SISTER VENTURE & FOUNDER SHOWCASE SECTION
   ========================================================================== */
.xisto-story-section {
  padding: 70px 0 50px;
  position: relative;
}

.xisto-hero-card {
  background: linear-gradient(145deg, rgba(245, 158, 11, 0.08) 0%, rgba(18, 24, 38, 0.9) 100%);
  border: 1px solid var(--border-xisto);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 40px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), var(--shadow-xisto);
  position: relative;
  overflow: hidden;
}

.xisto-hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-xisto);
}

.xisto-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.xisto-hero-card h2 {
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.xisto-lead {
  font-size: 1.2rem;
  color: #fde68a;
  font-weight: 500;
  margin-bottom: 24px;
  line-height: 1.6;
}

.xisto-bio-p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

/* Languages Grid */
.languages-pill-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 32px;
}

.lang-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: #fef3c7;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Timeline Cards */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: var(--transition);
  position: relative;
}

.timeline-card:hover {
  border-color: rgba(245, 158, 11, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: #f59e0b;
  margin-bottom: 8px;
}

.timeline-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.timeline-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Tutorial Modules Grid */
.tutorial-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 60px;
}

.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
}

.module-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: var(--shadow-lg);
}

.module-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
}

.module-number {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.module-number.radar {
  background: var(--gradient-radar);
  box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

.module-title-wrap h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.module-subtitle {
  color: var(--accent-cyan);
  font-size: 0.95rem;
  font-weight: 600;
}

.module-body {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.module-body p {
  margin-bottom: 16px;
}

.code-block-wrap {
  background: #05070d;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  margin: 18px 0;
  overflow: hidden;
}

.code-block-header {
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.code-block-wrap pre {
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #38bdf8;
  line-height: 1.5;
}

/* Mermaid Container */
.mermaid-container {
  background: rgba(15, 21, 35, 0.95);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 24px 0;
  display: flex;
  justify-content: center;
  overflow-x: auto;
}

.mermaid {
  font-family: var(--font-sans) !important;
}

/* Key Takeaway box */
.takeaway-box {
  background: rgba(16, 185, 129, 0.08);
  border-left: 4px solid var(--accent-emerald);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 20px;
}

.takeaway-box strong {
  color: #34d399;
}

.takeaway-box.radar {
  background: rgba(236, 72, 153, 0.08);
  border-left-color: #ec4899;
}

.takeaway-box.radar strong {
  color: #f472b6;
}

.takeaway-box.xisto {
  background: rgba(245, 158, 11, 0.08);
  border-left-color: #f59e0b;
}

.takeaway-box.xisto strong {
  color: #fbbf24;
}

/* Section Title */
.section-title-wrap {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
  color: #a5b4fc;
}

.feature-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Telemetry & Server Diagnostics */
.telemetry-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 60px;
}

.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.telemetry-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.telemetry-title h3 {
  font-size: 1.35rem;
  font-weight: 700;
}

.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.telemetry-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  padding: 20px;
  border-radius: var(--radius-md);
}

.telemetry-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.telemetry-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

/* Interactive Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  max-width: 550px;
  width: 100%;
  padding: 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  position: relative;
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-indigo);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-glass);
  padding: 50px 0 30px;
  color: var(--text-muted);
  font-size: 0.95rem;
  background: rgba(7, 10, 18, 0.95);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-sister-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  color: #fde68a;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.footer-sister-badge:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.5);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .pm-grid {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
  .pm-tags {
    justify-content: center;
  }
  .module-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-links {
    display: none;
  }
  .footer-top, .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}