:root {
  --color-bg: #0b0f17;
  --color-surface: #131924;
  --color-surface-hover: #1c2536;
  --color-card: rgba(19, 25, 36, 0.7);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-glow: rgba(234, 179, 8, 0.4);
  --color-primary: #eab308;
  --color-primary-hover: #ca8a04;
  --color-accent: #38bdf8;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-overlay: rgba(11, 15, 23, 0.85);
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  color: #ffffff;
}

.section-subtitle {
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  display: block;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  max-width: 42rem;
  margin-bottom: 2.5rem;
}

.bg-cover-overlay {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.card-glass {
  background: var(--color-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  transition: var(--transition);
}

.card-glass:hover {
  border-color: var(--color-border-glow);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -15px rgba(234, 179, 8, 0.15);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, #eab308 0%, #ca8a04 100%);
  color: #000000;
  font-weight: 700;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(234, 179, 8, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(234, 179, 8, 0.5);
  background: linear-gradient(135deg, #facc15 0%, #d97706 100%);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--color-primary);
  color: #000000;
  border-color: var(--color-primary);
}

.hotspot {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(234, 179, 8, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.6); }
  70% { box-shadow: 0 0 0 12px rgba(234, 179, 8, 0); }
  100% { box-shadow: 0 0 0 0 rgba(234, 179, 8, 0); }
}

.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, rgba(234, 179, 8, 0.1) 100%);
  transform: translateX(-50%);
}

.squadtactics3d-header-wrap {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 15, 23, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.squadtactics3d-nav-link {
  color: var(--color-text-muted);
  font-weight: 500;
  transition: var(--transition);
  padding: 0.5rem 0.75rem;
}

.squadtactics3d-nav-link:hover {
  color: var(--color-primary);
}

.loader-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
  display: none;
}

.loader-spinner.active {
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 3rem 0;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .timeline-line {
    left: 20px;
  }
}