:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --paper: #fbfbfd;
}

* { box-sizing: border-box; }

html, body, main { min-height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}

main {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

h1 {
  margin: 0;
  font-size: clamp(3.5rem, 13vw, 12rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: .95;
  transform: translateX(-.03em);
  animation: arrive 1.2s cubic-bezier(.16, 1, .3, 1) both, breathe 7s ease-in-out 1.3s infinite;
}

.launcher {
  position: fixed;
  top: max(1rem, env(safe-area-inset-top));
  right: max(1rem, env(safe-area-inset-right));
  display: grid;
  grid-template-columns: repeat(3, 4px);
  gap: 4px;
  width: 44px;
  height: 44px;
  place-content: center;
  padding: 0;
  border: 1px solid rgba(29, 29, 31, .08);
  border-radius: 50%;
  background: rgba(255, 255, 255, .68);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(29, 29, 31, .04);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}

.launcher:hover { background: rgba(255, 255, 255, .9); box-shadow: 0 3px 12px rgba(29, 29, 31, .08); }
.launcher:active { transform:scale(.94); }
.launcher:focus-visible, .directory a:focus-visible { outline: 2px solid #007aff; outline-offset: 3px; }

.launcher span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
}

.directory {
  position: fixed;
  top: calc(max(1rem, env(safe-area-inset-top)) + 52px);
  right: max(1rem, env(safe-area-inset-right));
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.3rem;
  width: min(31rem, calc(100vw - 2rem));
  padding: 1.3rem 1.35rem 1.35rem;
  border: 1px solid rgba(29, 29, 31, .1);
  border-radius: 18px;
  background: rgba(250, 250, 252, .78);
  box-shadow: 0 14px 38px rgba(29, 29, 31, .13), 0 2px 6px rgba(29, 29, 31, .06);
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  animation: menuIn .35s cubic-bezier(.16, 1, .3, 1) both;
}

.directory[hidden] { display: none; }

.directory::before {
  content: "";
  position: absolute;
  top: -6px;
  right: 16px;
  width: 11px;
  height: 11px;
  border-top: 1px solid rgba(29, 29, 31, .1);
  border-left: 1px solid rgba(29, 29, 31, .1);
  background: rgba(250, 250, 252, .78);
  transform: rotate(45deg);
}

.directory-title {
  grid-column: 1 / -1;
  margin: 0 0 -.75rem;
  color: rgba(29, 29, 31, .58);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: -.01em;
}

.directory h2 {
  margin: 0;
  padding: 0 0 .7rem;
  border-bottom: 1px solid rgba(29, 29, 31, .16);
  font-size: .64rem;
  font-weight: 500;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.directory a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .78rem .1rem;
  border-bottom: 1px solid rgba(29, 29, 31, .16);
  color: inherit;
  font-size: .84rem;
  font-weight: 400;
  letter-spacing: -.01em;
  text-decoration: none;
  transition: opacity .2s ease;
}

.directory i {
  font-size: 1rem;
  font-style: normal;
  transition: transform .25s cubic-bezier(.16, 1, .3, 1);
}

.directory a:hover { opacity: .58; }
.directory a:hover i { transform: translate(3px, -3px); }

@keyframes arrive {
  from {
    opacity: 0;
    transform: translate(-.03em, .18em);
    filter: blur(8px);
  }

  to {
    opacity: 1;
    transform: translateX(-.03em);
    filter: blur(0);
  }
}

@keyframes breathe {
  0%, 100% { transform: translateX(-.03em) scale(1); }
  50% { transform: translateX(-.03em) scale(1.012); }
}

@keyframes menuIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  h1, .directory { animation: none; }
}

@media (max-width: 540px) {
  .directory {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    top: auto;
    right: 0;
    bottom: 0;
    width: 100%;
    padding: 1.5rem 1.5rem calc(1.5rem + env(safe-area-inset-bottom));
    border-radius: 20px 20px 0 0;
  }

  .directory::before { display: none; }

  .directory-title {
    margin-bottom: -.45rem;
  }
}