html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Tactical grid overlay */
.tactical-grid {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.tactical-grid canvas {
  width: 100%;
  height: 100%;
}

/* Scanline overlay */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
  z-index: 9998;
}

/* Main content */
.main-content {
  position: relative;
  z-index: 1;
  padding-top: 70px;
}

.page { display: none; }
.page.active { display: block; }

/* Sections */
.section {
  padding: 100px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.section-header { margin-bottom: 60px; }

.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.section-tag::before {
  content: '//';
  color: var(--text-dim);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 600;
  letter-spacing: -0.5px;
}

/* Page header (non-home) */
.page-header {
  padding: 80px 40px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.page-header .section-tag { margin-bottom: 16px; }
.page-header .section-title { margin-bottom: 12px; }

.page-header-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
}

/* Buttons */
.btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 32px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: none;
}

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

.btn-primary:hover {
  background: #7dd3fc;
  box-shadow: 0 0 30px var(--accent-glow);
}

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

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

/* Animations */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeSlideLeft {
  from { opacity: 0; transform: translate(30px, -50%); }
  to { opacity: 1; transform: translate(0, -50%); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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