:root {
  /* Brand: Infinity Roma logo palette */
  --green-400: #C8E0A8;
  --green-500: #78B8C0;
  --green-600: #5FA0A8;
  --brand-rgb: 120, 184, 192;
  --brand-soft-rgb: 200, 224, 168;
  --silver-200: #E6E8F0;
  --silver-300: #C8CBD7;
  --silver-400: #9B9FA8;
  --silver-500: #74777E;
  --silver-700: #414347;

  /* Ink: Deep Obsidian */
  --ink-1000: #000000;
  --ink-950:  #030303;
  --ink-900:  #050505;
  --ink-850:  #0A0A0A;
  --ink-800:  #111111;
  --ink-750:  #1A1A1A;
  --ink-700:  #222222;

  --fg-1: #FFFFFF;
  --fg-2: #E6E8F0;
  --fg-3: #9B9FA8;
  --fg-4: #74777E;

  --line: rgba(255, 255, 255, 0.06);
  --line-strong: rgba(255, 255, 255, 0.12);

  --brand: var(--green-500);
  --glow-green: 0 0 0 1px rgba(var(--brand-rgb), 0.28), 0 0 32px rgba(var(--brand-rgb), 0.22);

  --font-display: 'Syne', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Archivo', 'Helvetica Neue', Arial, sans-serif;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-900);
  color: var(--fg-2);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--brand); color: var(--ink-1000); }

/* Background atmosphere — subtle brand vignette at top */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 800px at 50% -10%, rgba(var(--brand-rgb), 0.07), transparent 60%),
    radial-gradient(900px 600px at 95% 110%, rgba(255,255,255,0.02), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Subtle architectural grid */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 80%);
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 80%);
  z-index: 0;
}

/* Enter animations */
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.rise   { animation: rise 800ms var(--ease-out) both; }
.rise.d1 { animation-delay: 0.1s; }
.rise.d2 { animation-delay: 0.2s; }
.rise.d3 { animation-delay: 0.35s; }
.rise.d4 { animation-delay: 0.5s; }
.rise.d5 { animation-delay: 0.7s; }

@media (prefers-reduced-motion: reduce) {
  .rise { animation: none; }
}

/* Utility classes */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 48px 56px;
}

@media (max-width: 900px) {
  .container {
    padding: 24px 24px 40px;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}