@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Syne:wght@400;500;600;700;800&display=swap');

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

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

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at var(--cursor-x, 50%) var(--cursor-y, 20%), rgba(0, 212, 170, 0.08), transparent 30rem),
    radial-gradient(circle at 70% 80%, rgba(124, 92, 252, 0.04), transparent 40rem),
    radial-gradient(circle at 20% 60%, rgba(255, 107, 157, 0.03), transparent 40rem);
  transition: background 0.3s ease;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0%, rgba(0, 212, 170, 0.03) 28%, transparent 44%),
    linear-gradient(240deg, transparent 0%, rgba(124, 92, 252, 0.03) 28%, transparent 44%);
  animation: auroraSweep 20s ease-in-out infinite alternate;
}

body.is-loading .reveal {
  transition: none;
}

.skip-link,
.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;
}

.skip-link:focus {
  position: fixed;
  top: 1rem;
  left: 1rem;
  width: auto;
  height: auto;
  margin: 0;
  clip: auto;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 800;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Syne', var(--font);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--color-text-bright);
}

h1 { font-size: clamp(3.5rem, 8vw, 7rem); }
h2 { font-size: clamp(2.2rem, 4.5vw, 3.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  color: var(--color-text-dim);
  line-height: 1.75;
  font-size: 1rem;
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

img {
  max-width: 100%;
  display: block;
  image-rendering: -webkit-optimize-contrast;
}

::selection {
  background: rgba(0, 212, 170, 0.25);
  color: #fff;
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

@keyframes auroraSweep {
  from { opacity: 0.6; transform: translate3d(-3%, 0, 0) scale(1); }
  to { opacity: 1; transform: translate3d(3%, -1%, 0) scale(1.02); }
}