:root {
  /* Core palette */
  --void-blue: #05182F;
  --dream-white: #F0F4F8;
  --space-grey: #334E68;

  /* Neon accents */
  --neon-blue: #0066FF;
  --neon-cyan: #00E0FF;
  --neon-purple: #A700FF;
  --neon-pink: #FF0099;
  --neon-green: #00FF88;

  /* Gradients (315 degree angle) */
  --gradient-blue: linear-gradient(315deg, #00E0FF, #0066FF);
  --gradient-dark: linear-gradient(315deg, #05182F, #334E68);
  --gradient-blurple: linear-gradient(315deg, #0066FF, #A700FF);
  --gradient-pink: linear-gradient(315deg, #A700FF, #FF0099);

  /* Glass surfaces */
  --glass-surface: rgba(5, 24, 47, 0.6);
  --glass-border: rgba(0, 224, 255, 0.1);
  --glass-border-hover: rgba(0, 224, 255, 0.25);

  /* Legacy aliases (keep pages working) */
  --bg-deep: var(--void-blue);
  --bg-base: var(--void-blue);
  --bg-surface: var(--glass-surface);
  --bg-elevated: rgba(5, 24, 47, 0.75);
  --accent-blue: var(--neon-cyan);
  --accent-yellow: var(--neon-purple);
  --accent-green: var(--neon-green);
  --accent-pink: var(--neon-pink);
  --text-primary: var(--dream-white);
  --text-secondary: var(--space-grey);
  --text-muted: #4A6580;
  --border: var(--glass-border);

  --radius: 16px;
  --radius-sm: 10px;
  --max-width: 1120px;
}

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

html {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--void-blue);
  color: var(--dream-white);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
}

/* Ambient gradient glow */
body::before {
  content: '';
  position: fixed;
  top: -30%;
  left: -20%;
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(0, 102, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -20%;
  right: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(ellipse at center, rgba(167, 0, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography — Poppins for headings, Roboto for body */
h1, h2, h3, h4 {
  font-family: 'Poppins', sans-serif;
}

h1 {
  font-size: 2.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--dream-white);
}

h2 {
  font-size: 1.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--dream-white);
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--dream-white);
  text-transform: uppercase;
}

h4 {
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

p {
  color: var(--space-grey);
  max-width: 72ch;
}

strong {
  color: var(--dream-white);
  font-weight: 700;
}

/* Utility — accent colors */
.accent-blue { color: var(--neon-blue); }
.accent-cyan { color: var(--neon-cyan); }
.accent-purple { color: var(--neon-purple); }
.accent-pink { color: var(--neon-pink); }
.accent-green { color: var(--neon-green); }
.accent-yellow { color: var(--neon-purple); }
.text-muted { color: var(--text-muted); }

/* Tags */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tag--blue {
  background: rgba(0, 102, 255, 0.12);
  color: var(--neon-cyan);
}

.tag--yellow {
  background: rgba(167, 0, 255, 0.12);
  color: var(--neon-purple);
}

.tag--green {
  background: rgba(0, 255, 136, 0.12);
  color: var(--neon-green);
}

.tag--pink {
  background: rgba(255, 0, 153, 0.12);
  color: var(--neon-pink);
}

/* Glass card (also aliased as .card for backward compatibility) */
.glass,
.card {
  background: rgba(5, 24, 47, 0.6);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid rgba(0, 224, 255, 0.1);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass:hover,
.card:hover {
  border-color: rgba(0, 224, 255, 0.25);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 224, 255, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.card--elevated {
  background: rgba(5, 24, 47, 0.75);
}

/* CTA Buttons */
.btn-primary {
  display: inline-block;
  background: linear-gradient(315deg, #00E0FF, #0066FF);
  color: #FFFFFF;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 100px;
  padding: 12px 28px;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  opacity: 0.9;
  box-shadow: 0 0 24px rgba(0, 224, 255, 0.25);
  text-decoration: none;
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--dream-white);
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(0, 224, 255, 0.3);
  border-radius: 100px;
  padding: 12px 28px;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-secondary:hover {
  border-color: rgba(0, 224, 255, 0.6);
  box-shadow: 0 0 16px rgba(0, 224, 255, 0.12);
  text-decoration: none;
}

/* Gradient utilities */
.gradient-blue-bg { background: var(--gradient-blue); }
.gradient-dark-bg { background: var(--gradient-dark); }
.gradient-blurple-bg { background: var(--gradient-blurple); }
.gradient-pink-bg { background: var(--gradient-pink); }

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

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

/* Layout */
.divider {
  border: none;
  border-top: 1px solid var(--glass-border);
  margin: 48px 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 768px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.375rem; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .container { padding: 0 16px; }
}