:root {
  color-scheme: dark;
  --arc-bg: #0b1014;
  --arc-bg-soft: #11191d;
  --arc-surface: #151f23;
  --arc-surface-2: #1c282c;
  --arc-ink: #f4f0e8;
  --arc-ink-2: #c9c6bd;
  --arc-muted: #989d9a;
  --arc-line: rgba(240, 233, 220, 0.12);
  --arc-line-strong: rgba(240, 233, 220, 0.22);
  --arc-teal: #69b7ad;
  --arc-teal-soft: rgba(105, 183, 173, 0.13);
  --arc-berry: #c27a96;
  --arc-berry-soft: rgba(194, 122, 150, 0.13);
  --arc-gold: #d8b36a;
  --arc-gold-soft: rgba(216, 179, 106, 0.14);
  --arc-success: #79c79d;
  --arc-danger: #e9949f;
  --arc-focus: #8dcfc6;
  --arc-radius-xs: 4px;
  --arc-radius-sm: 6px;
  --arc-radius: 8px;
  --arc-shadow: 0 16px 44px rgba(0, 0, 0, 0.24);
  --arc-font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --arc-bg: #f7f8f6;
  --arc-bg-soft: #edf2ef;
  --arc-surface: #ffffff;
  --arc-surface-2: #f1f5f3;
  --arc-ink: #202827;
  --arc-ink-2: #4d5956;
  --arc-muted: #68736f;
  --arc-line: rgba(32, 40, 39, 0.12);
  --arc-line-strong: rgba(32, 40, 39, 0.22);
  --arc-teal: #397f77;
  --arc-teal-soft: rgba(57, 127, 119, 0.10);
  --arc-berry: #96536d;
  --arc-berry-soft: rgba(150, 83, 109, 0.10);
  --arc-gold: #916f2f;
  --arc-gold-soft: rgba(145, 111, 47, 0.11);
  --arc-success: #317a51;
  --arc-danger: #a74552;
  --arc-focus: #397f77;
  --arc-shadow: 0 14px 36px rgba(34, 49, 45, 0.10);
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--arc-bg); -webkit-text-size-adjust: 100%; }
body {
  min-height: 100%;
  margin: 0;
  background:
    linear-gradient(135deg, var(--arc-teal-soft), transparent 38%),
    linear-gradient(315deg, var(--arc-berry-soft), transparent 34%),
    var(--arc-bg);
  color: var(--arc-ink);
  font: 400 16px/1.5 var(--arc-font);
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; letter-spacing: 0; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:where(a, button, input):focus-visible {
  outline: 3px solid var(--arc-focus);
  outline-offset: 3px;
}

.arc-shell {
  width: min(100%, 880px);
  margin-inline: auto;
  padding: calc(16px + env(safe-area-inset-top)) 14px calc(28px + env(safe-area-inset-bottom));
}

.arc-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.arc-brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.arc-mark {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--arc-line-strong);
  border-radius: 50%;
  color: var(--arc-gold);
  background: var(--arc-surface);
  box-shadow: 0 0 0 4px var(--arc-gold-soft);
  font-size: 19px;
}
.arc-brand strong { display: block; font-size: 15px; line-height: 1.1; }
.arc-brand span { display: block; color: var(--arc-muted); font-size: 12px; margin-top: 3px; }
.arc-icon-button {
  width: 44px;
  height: 44px;
  border: 1px solid var(--arc-line);
  border-radius: var(--arc-radius);
  background: var(--arc-surface);
  color: var(--arc-ink);
  cursor: pointer;
}

.arc-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 20px;
  border: 1px solid var(--arc-line);
  border-radius: var(--arc-radius);
  background: var(--arc-surface);
  box-shadow: var(--arc-shadow);
}
.arc-hero::after {
  content: "";
  position: absolute;
  inset: auto -40px -70px auto;
  width: 170px;
  aspect-ratio: 1;
  border: 1px solid var(--arc-line-strong);
  border-radius: 50%;
  box-shadow: 0 0 0 28px var(--arc-teal-soft), 0 0 0 56px var(--arc-gold-soft);
  pointer-events: none;
}
.arc-kicker { margin: 0 0 8px; color: var(--arc-gold); font-weight: 700; font-size: 12px; }
.arc-title { margin: 0; max-width: 17ch; font-size: 34px; line-height: 1.06; font-weight: 720; text-wrap: balance; }
.arc-lead { max-width: 66ch; margin: 12px 0 0; color: var(--arc-ink-2); text-wrap: pretty; }
.arc-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.arc-chip {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 9px;
  border: 1px solid var(--arc-line);
  border-radius: 999px;
  background: var(--arc-bg-soft);
  color: var(--arc-ink-2);
  font-size: 12px;
}
.arc-chip[data-tone="success"] { color: var(--arc-success); border-color: color-mix(in srgb, var(--arc-success), transparent 70%); }

.arc-section { margin-top: 26px; }
.arc-section-head { display: flex; align-items: end; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.arc-section h2 { margin: 0; font-size: 21px; line-height: 1.2; text-wrap: balance; }
.arc-section-head p { margin: 4px 0 0; color: var(--arc-muted); font-size: 13px; }

.arc-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin: 18px 0 0;
  padding: 4px;
  border: 1px solid var(--arc-line);
  border-radius: var(--arc-radius);
  background: var(--arc-bg-soft);
}
.arc-tab {
  min-height: 44px;
  padding: 7px 8px;
  border: 0;
  border-radius: var(--arc-radius-sm);
  background: transparent;
  color: var(--arc-ink-2);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}
.arc-tab[aria-selected="true"] { background: var(--arc-surface); color: var(--arc-ink); box-shadow: 0 1px 4px rgba(0,0,0,.09); }

.arc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.arc-card {
  min-width: 0;
  min-height: 132px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--arc-line);
  border-radius: var(--arc-radius);
  background: var(--arc-surface);
  color: var(--arc-ink);
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(0,0,0,.06);
  transition: transform 160ms cubic-bezier(.23,1,.32,1), border-color 160ms ease, background-color 160ms ease;
}
.arc-card:hover { transform: translateY(-2px); border-color: var(--arc-line-strong); }
.arc-card:active { transform: scale(.98); }
.arc-card[data-featured="true"] { grid-column: 1 / -1; min-height: 116px; background: var(--arc-teal-soft); }
.arc-card[data-tone="mystic"] { background: var(--arc-berry-soft); }
.arc-card[data-tone="gold"] { background: var(--arc-gold-soft); }
.arc-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.arc-symbol { color: var(--arc-teal); font-size: 21px; line-height: 1; }
.arc-card[data-tone="mystic"] .arc-symbol { color: var(--arc-berry); }
.arc-card[data-tone="gold"] .arc-symbol { color: var(--arc-gold); }
.arc-card h3 { margin: 0; font-size: 16px; line-height: 1.25; overflow-wrap: anywhere; }
.arc-card p { margin: 5px 0 0; color: var(--arc-muted); font-size: 13px; text-wrap: pretty; }
.arc-card-arrow { color: var(--arc-muted); font-size: 18px; }
.arc-card-badge { color: var(--arc-muted); font-size: 11px; font-variant-numeric: tabular-nums; }

.arc-button-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; }
.arc-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: var(--arc-radius-sm);
  background: var(--arc-teal);
  color: #071412;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: transform 140ms cubic-bezier(.23,1,.32,1), filter 140ms ease;
}
.arc-button:hover { filter: brightness(1.06); }
.arc-button:active { transform: scale(.97); }
.arc-button[data-variant="secondary"] { border-color: var(--arc-line-strong); background: var(--arc-surface); color: var(--arc-ink); }
.arc-button:disabled { cursor: not-allowed; opacity: .55; }

.arc-note {
  margin-top: 20px;
  padding: 13px 14px;
  border: 1px solid var(--arc-line);
  border-radius: var(--arc-radius);
  background: var(--arc-bg-soft);
  color: var(--arc-ink-2);
  font-size: 13px;
}

.arc-loader {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--arc-bg);
  transition: opacity 180ms ease;
}
.arc-loader[hidden] { display: none; }
.arc-loader-card { width: min(100%, 300px); text-align: center; }
.arc-orbit {
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  position: relative;
  border: 1px solid var(--arc-line-strong);
  border-radius: 50%;
  animation: arc-spin 1.25s linear infinite;
}
.arc-orbit::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  inset: -6px auto auto 22px;
  border-radius: 50%;
  background: var(--arc-gold);
  box-shadow: 0 0 18px var(--arc-gold);
}
.arc-orbit::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  inset: 18px;
  border-radius: 50%;
  background: var(--arc-teal);
}
.arc-loader strong { display: block; font-size: 16px; }
.arc-loader p { margin: 6px 0 0; color: var(--arc-muted); font-size: 13px; }
@keyframes arc-spin { to { transform: rotate(360deg); } }

.arc-state { padding: 22px 18px; border: 1px solid var(--arc-line); border-radius: var(--arc-radius); background: var(--arc-surface); text-align: center; }
.arc-state h2 { margin: 0; font-size: 20px; }
.arc-state p { margin: 8px auto 0; max-width: 52ch; color: var(--arc-ink-2); }

.arc-skeleton {
  position: relative;
  overflow: hidden;
  min-height: 18px;
  border-radius: var(--arc-radius-xs);
  background: var(--arc-surface-2);
}
.arc-skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
  animation: arc-shimmer 1.35s infinite;
}
@keyframes arc-shimmer { to { transform: translateX(100%); } }

.arc-footer { margin: 28px 0 0; color: var(--arc-muted); text-align: center; font-size: 12px; }
.arc-hidden { display: none !important; }

@media (max-width: 540px) {
  .arc-shell { padding-inline: 12px; }
  .arc-hero { padding: 21px 17px; }
  .arc-title { font-size: 29px; }
  .arc-grid { grid-template-columns: 1fr; }
  .arc-card[data-featured="true"] { grid-column: auto; }
  .arc-tabs { grid-template-columns: 1fr; }
  .arc-tab { min-height: 40px; }
  .arc-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}