:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
  background: #090b0d;
  color: #f4f5f7;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.12);
  --muted: rgba(244, 245, 247, 0.62);
  --quiet: rgba(244, 245, 247, 0.38);
  --safe: #73e2a7;
  --review: #ffd166;
  --denied: #ff7b86;
  --accent: #9ed7ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 8%, rgba(68, 126, 255, 0.12), transparent 30rem),
    radial-gradient(circle at 82% 2%, rgba(70, 220, 173, 0.08), transparent 28rem),
    linear-gradient(180deg, #0a0c0f 0%, #090a0c 54%, #08090b 100%);
  color: #f4f5f7;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.014) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.45), transparent 72%);
}

button, summary { font: inherit; }

.shell {
  width: min(920px, calc(100% - 32px));
  max-width: 100%;
  min-width: 0;
  margin: 0 auto;
  padding: 40px 0 72px;
}

.shell > * {
  min-width: 0;
  max-width: 100%;
}

.hero {
  padding: 20px 2px 28px;
}

.eyebrow-row,
.status-strip,
.signal-grid,
.session-actions,
.controls {
  display: flex;
  align-items: center;
}

.eyebrow-row {
  justify-content: space-between;
  gap: 16px;
}

.eyebrow,
.surface-note {
  margin: 0;
  font-size: .76rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--quiet);
}

h1 {
  margin: 12px 0 4px;
  font-size: clamp(4rem, 13vw, 7.4rem);
  line-height: .9;
  letter-spacing: -.07em;
  font-weight: 650;
}

.lede {
  width: min(680px, 100%);
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.8vw, 1.28rem);
  line-height: 1.55;
}

.status-strip {
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.status-copy {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.status-copy div {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.status-copy strong {
  font-size: .96rem;
  font-weight: 600;
}

.status-copy span:last-child {
  color: var(--muted);
  font-size: .84rem;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #6d737c;
  box-shadow: 0 0 0 5px rgba(109, 115, 124, .08);
  flex: 0 0 auto;
}

.status-dot[data-state="connected"] {
  background: var(--safe);
  box-shadow: 0 0 0 5px rgba(115, 226, 167, .08), 0 0 24px rgba(115, 226, 167, .22);
}

.status-dot[data-state="stale"] {
  background: var(--review);
  box-shadow: 0 0 0 5px rgba(255, 209, 102, .08), 0 0 24px rgba(255, 209, 102, .18);
}

.status-dot[data-state="authenticated"] {
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(158, 215, 255, .08);
}

.session-actions {
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  min-width: 0;
  gap: 8px;
  margin: 22px 0 28px;
}

.signal {
  min-width: 0;
  min-height: 86px;
  padding: 14px 14px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.022));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.signal span {
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--quiet);
}

.signal strong {
  font-size: 1.7rem;
  font-weight: 560;
  letter-spacing: -.04em;
}

.signal.safe strong { color: var(--safe); }
.signal.review strong { color: var(--review); }
.signal.denied strong { color: var(--denied); }
.signal.effect strong { color: var(--accent); font-size: 1rem; letter-spacing: .04em; }

.conversation {
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background: rgba(10, 12, 15, .66);
  backdrop-filter: blur(18px);
}

.transcript {
  min-width: 0;
  max-width: 100%;
  min-height: 178px;
  max-height: 420px;
  overflow: auto;
  padding: 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: 12px;
}

.empty-state {
  margin: auto 0;
  color: var(--quiet);
  line-height: 1.55;
}

.message {
  width: fit-content;
  min-width: 0;
  max-width: 100%;
  margin: 0;
  padding: 11px 14px;
  border-radius: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.message.user {
  justify-self: end;
  background: var(--surface-strong);
  color: #f4f5f7;
}

.message.safeops {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .025);
  color: rgba(244,245,247,.86);
}

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  min-width: 0;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--line);
}

button {
  border: 1px solid var(--line);
  color: inherit;
  background: var(--surface);
  border-radius: 12px;
  cursor: pointer;
  transition: background .16s ease, border-color .16s ease, opacity .16s ease, transform .16s ease;
}

button:hover:not(:disabled) {
  background: var(--surface-strong);
  border-color: rgba(255,255,255,.2);
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

button:disabled {
  opacity: .32;
  cursor: not-allowed;
}

.primary {
  grid-column: 1 / -1;
  padding: 14px 16px;
  text-align: center;
  background: rgba(158, 215, 255, .11);
  border-color: rgba(158, 215, 255, .24);
  font-weight: 620;
}

.command {
  min-height: 76px;
  padding: 13px 14px;
  text-align: left;
  display: grid;
  align-content: center;
  gap: 5px;
}

.command span {
  font-weight: 600;
  letter-spacing: -.01em;
}

.command small {
  color: var(--quiet);
  font-size: .74rem;
  line-height: 1.35;
}

.ghost {
  background: transparent;
}

.compact {
  padding: 8px 10px;
  border-radius: 9px;
  font-size: .8rem;
  color: var(--muted);
}

.technical {
  min-width: 0;
  max-width: 100%;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.technical summary {
  cursor: pointer;
  list-style: none;
  padding: 13px 2px;
  font-size: .82rem;
  color: var(--quiet);
}

.technical summary::-webkit-details-marker { display: none; }

pre {
  min-width: 0;
  max-width: 100%;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0,0,0,.24);
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: rgba(244,245,247,.72);
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 24px, 920px);
    padding-top: 22px;
  }

  .hero { padding-top: 8px; }

  .surface-note { display: none; }

  .status-strip {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .signal-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .primary {
    grid-column: auto;
  }

  .transcript {
    min-height: 150px;
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}