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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-sm);
}

h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Utilities */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding-inline: 24px;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 40px;
  }
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--cyan);
  display: inline-block;
  margin-bottom: var(--space-xs);
  background: var(--cyan-dim);
  padding: 4px 12px;
  border-radius: 100px;
}

.section {
  padding-block: var(--space-xxl);
  border-top: 1px solid var(--line);
}

/* Gradient text utility */
.text-grad {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Focus States – accessibility */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* Modern Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.btn--primary {
  background: linear-gradient(135deg, var(--cyan), #00B896);
  color: var(--ink);
  box-shadow: 0 0 20px var(--cyan-dim);
}

.btn--primary:hover {
  box-shadow: 0 0 30px var(--cyan-glow);
  transform: translateY(-1px);
}

.btn--ghost {
  background-color: transparent;
  color: var(--paper);
  border: 1px solid var(--line-bright);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--paper);
}

/* Glass card utility */
.glass {
  background: rgba(13, 17, 23, 0.6);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}