/* ============================================
   Base / Reset / Global
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--gray-100);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Ambient background glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 15% 0%, rgba(47, 107, 255, 0.18), transparent 70%),
    radial-gradient(50% 45% at 100% 20%, rgba(139, 92, 255, 0.12), transparent 70%),
    radial-gradient(40% 40% at 50% 100%, rgba(56, 225, 255, 0.08), transparent 70%);
  pointer-events: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  color: inherit;
}

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

ul { list-style: none; }

::selection {
  background: var(--blue-500);
  color: var(--white);
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--gray-700);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }

/* Focus visibility */
:focus-visible {
  outline: 2px solid var(--blue-400);
  outline-offset: 2px;
}

/* Utility */
.hidden { display: none !important; }
.text-muted { color: var(--gray-500); }
.gradient-text {
  background: linear-gradient(120deg, var(--blue-400), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

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