/* Liquid Neutral — palette + atmosphere from the iOS DesignSystem tokens.
   Pixel-comparable to OfflineColor.bgTop / bgMid / bgBot / ink / ink2.   */

:root {
  --bg-top: #EEF2F6;
  --bg-mid: #E2E8F0;
  --bg-bot: #D5DDE8;
  --ink:    #0C0F14;
  --ink2:   #7A8191;
}

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

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
               "Segoe UI", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg,
              var(--bg-top) 0%,
              var(--bg-mid) 55%,
              var(--bg-bot) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Soft atmospheric overlays — translucent ellipses that mimic the
     SwiftUI Atmosphere chassis layered radial gradients. */
  position: relative;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before,
body::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
  opacity: 0.6;
}

body::before {
  width: 720px;
  height: 720px;
  top: -240px;
  left: -200px;
  background: radial-gradient(circle, rgba(255,255,255,0.7) 0%, transparent 60%);
}

body::after {
  width: 640px;
  height: 640px;
  bottom: -200px;
  right: -160px;
  background: radial-gradient(circle, rgba(180,200,225,0.45) 0%, transparent 65%);
}

main {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 32px;
}

.wordmark {
  font-size: clamp(72px, 14vw, 144px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
  color: var(--ink);
}

.subtitle {
  margin-top: 28px;
  font-size: clamp(17px, 2.4vw, 22px);
  font-weight: 400;
  color: var(--ink2);
  letter-spacing: -0.01em;
}