/* ==========================================================================
   Base — reset + atmospheric background
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(56,199,192,0.08), transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(230,51,61,0.10), transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(240,179,42,0.05), transparent 60%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 40%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, black 20%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: -20%;
  background: radial-gradient(ellipse at center, rgba(126,138,194,0.06) 0%, transparent 60%);
  pointer-events: none;
  filter: blur(40px);
  z-index: 0;
}

#app { position: relative; z-index: 1; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--lh-tight);
  margin: 0;
}
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--sp-3) 0; color: var(--color-text-dim); }

a {
  color: var(--brand-teal-hi);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--brand-teal); }

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
:focus-visible {
  outline: 2px solid var(--brand-teal-hi);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

::selection { background: rgba(56,199,192,0.35); color: var(--navy-050); }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); background-clip: padding-box; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}