/* BASE & GLOBAL STYLES */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@300;400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

body {
  font-family: var(--font-body);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

/* Scanline Effect Overlay */
body::after {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  z-index: 99999;
  background-size: 100% 4px, 3px 100%;
  pointer-events: none;
  opacity: 0.4;
}

/* Background Canvas */
#neural-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: auto; /* Allow interactive gravity pull! */
  opacity: 0.85;
}

/* Global Content Wrapper */
.content-wrapper {
  position: relative;
  z-index: 10;
  width: 100%;
}

/* Section Common Styles */
section {
  min-height: 100vh;
  padding: 100px 10% 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Glowing text & terminal styles */
.text-glow-cyan {
  text-shadow: var(--shadow-neon-cyan);
  color: var(--accent-cyan);
}

.text-glow-amber {
  text-shadow: var(--shadow-neon-amber);
  color: var(--accent-amber);
}

.text-glow-violet {
  text-shadow: var(--shadow-neon-violet);
  color: var(--accent-violet);
}

.font-mono {
  font-family: var(--font-mono);
}

.font-display {
  font-family: var(--font-display);
}

/* Custom Buttons - Terminal Action Style */
.btn-terminal {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.03);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-terminal::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 240, 255, 0.15),
    transparent
  );
  transition: 0.5s;
}

.btn-terminal:hover::before {
  left: 100%;
}

.btn-terminal:hover {
  background: rgba(0, 240, 255, 0.12);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
  transform: translateY(-2px);
}

.btn-terminal-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--text-secondary);
  color: var(--text-secondary);
  background: transparent;
  transition: var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-terminal-secondary:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

/* Headings styles */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--accent-cyan);
  box-shadow: var(--shadow-neon-cyan);
}

.section-title-mono {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  color: var(--accent-cyan);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title-mono::before {
  content: '>';
  color: var(--accent-amber);
  animation: pulse-caret 1s infinite alternate;
}

@keyframes pulse-caret {
  0% { opacity: 0.3; }
  100% { opacity: 1; }
}

/* Reveal on scroll base class */
.reveal-element {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-element.active {
  opacity: 1;
  transform: translateY(0);
}

/* Generic visibility utility — JS toggles `.hidden` across sections
   (details panel placeholder, drawer loading state, linked-nodes row) */
.hidden {
  display: none !important;
}