:root {
  --bg-deep: #0A1301;
  --bg-panel: #1F2519;
  --bg-elevated: #262d1f;
  --bg-input: #151b0c;
  --text: #FFFEFE;
  --text-muted: #E8F3F0;
  --text-dim: rgba(232, 243, 240, 0.62);
  --accent: #00D992;
  --accent-dim: rgba(0, 217, 146, 0.18);
  --accent-border: rgba(0, 217, 146, 0.35);
  --danger: #ff7b72;
  --warn: #f0c14b;
  --border: rgba(232, 243, 240, 0.1);
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-display: "Red Hat Display", "Manrope", system-ui, sans-serif;
  --header-h: 64px;
  --composer-pad: 12px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(0, 217, 146, 0.08), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(31, 37, 25, 0.9), transparent 50%),
    var(--bg-deep);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.app {
  min-height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 16px env(safe-area-inset-bottom);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: var(--header-h);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(10px);
  background: rgba(10, 19, 1, 0.82);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 12px;
  padding: 6px 10px;
  line-height: 1;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}

.brand-tag {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

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

.clear-chat-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.clear-chat-btn:hover {
  color: var(--text-muted);
  border-color: rgba(232, 243, 240, 0.28);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  color: var(--text-dim);
  max-width: 46%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-meta .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  flex-shrink: 0;
}

.conversation {
  padding: 24px 0 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.welcome {
  margin: 28px 0 8px;
  padding: 28px 24px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(31, 37, 25, 0.95), rgba(10, 19, 1, 0.4));
  border: 1px solid var(--border);
}

.welcome h1 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 1.85rem);
  font-weight: 700;
}

.welcome p {
  margin: 0;
  color: var(--text-dim);
  line-height: 1.55;
  max-width: 42ch;
}

.msg {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(100%, 640px);
  animation: rise 0.28s ease-out;
}

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

.msg.user {
  align-self: flex-end;
}

.msg.assistant,
.msg.error {
  align-self: flex-start;
}

.bubble {
  padding: 14px 16px;
  border-radius: 18px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.98rem;
}

.msg.user .bubble {
  background: var(--accent);
  color: #04110a;
  font-weight: 500;
  border-bottom-right-radius: 6px;
}

.msg.assistant .bubble {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-bottom-left-radius: 6px;
  color: var(--text-muted);
}

.msg.assistant.revise .bubble {
  border-color: rgba(240, 193, 75, 0.35);
}

.msg.assistant.refuse .bubble {
  border-color: rgba(255, 123, 114, 0.35);
}

.msg.error .bubble {
  background: rgba(255, 123, 114, 0.08);
  border: 1px solid rgba(255, 123, 114, 0.35);
  color: var(--text-muted);
}

.msg.error.network-error.collapsed {
  display: none;
}

.msg.error.integrity-error .bubble {
  background: rgba(240, 193, 75, 0.1);
  border: 1px solid rgba(240, 193, 75, 0.45);
  color: var(--text-muted);
}

.msg.error.integrity-error.collapsed {
  display: none;
}

.header-meta .dot.offline {
  background: var(--danger);
  box-shadow: 0 0 0 3px rgba(255, 123, 114, 0.2);
}

.note-calm {
  color: var(--text-dim);
  font-style: italic;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-left: 4px;
}

.governed {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.01em;
}

.decision-chip {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.decision-chip.accept {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.decision-chip.revise {
  color: var(--warn);
  border-color: rgba(240, 193, 75, 0.4);
  background: rgba(240, 193, 75, 0.1);
}

.decision-chip.refuse {
  color: var(--danger);
  border-color: rgba(255, 123, 114, 0.4);
  background: rgba(255, 123, 114, 0.1);
}

.decision-chip.evaluation {
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.72rem;
}
.decision-chip.evaluation.pass {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}
.decision-chip.evaluation.fail {
  color: var(--danger);
  border-color: rgba(255, 123, 114, 0.4);
  background: rgba(255, 123, 114, 0.1);
}
.decision-chip.evaluation.revised {
  color: var(--warn);
  border-color: rgba(240, 193, 75, 0.4);
  background: rgba(240, 193, 75, 0.1);
}
/* Soft / safe refusal — distinct from FAIL (constraint/grounding failure). */
.decision-chip.evaluation.refuse {
  color: var(--danger);
  border-color: rgba(255, 123, 114, 0.45);
  background: rgba(255, 123, 114, 0.12);
}
.decision-chip.constraint {
  opacity: 0.85;
}

.inspect-btn {
  appearance: none;
  border: 1px solid var(--accent-border);
  background: transparent;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.inspect-btn:hover {
  background: var(--accent-dim);
}

.inspect-btn:active {
  transform: scale(0.98);
}

.composer {
  position: sticky;
  bottom: 0;
  padding: 10px 0 16px;
  background: linear-gradient(180deg, transparent, rgba(10, 19, 1, 0.92) 28%, var(--bg-deep));
}

.composer-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: end;
  padding: 10px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

#messageInput {
  resize: none;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.45;
  min-height: 44px;
  max-height: 160px;
  padding: 10px 8px;
  width: 100%;
}

#messageInput::placeholder {
  color: var(--text-dim);
}

.send-btn {
  appearance: none;
  border: 0;
  background: var(--accent);
  color: #04110a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 12px 18px;
  border-radius: 14px;
  cursor: pointer;
  transition: filter 0.15s ease, opacity 0.15s ease;
}

.send-btn:hover:not(:disabled) {
  filter: brightness(1.05);
}

.send-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.footer-note {
  margin: 10px 4px 0;
  font-size: 0.68rem;
  color: var(--text-dim);
  text-align: center;
}

.staging-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px dashed var(--accent-border);
  background: rgba(0, 217, 146, 0.05);
}

.staging-bar.hidden {
  display: none;
}

.staging-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-right: 4px;
}

.stg-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.stg-btn:hover {
  border-color: var(--accent-border);
  color: var(--accent);
}

/* Evidence drawer */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 20;
}

.drawer {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
}

.drawer.open {
  pointer-events: auto;
}

.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: min(420px, 100%);
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: translateX(105%);
  transition: transform 0.28s ease;
  display: flex;
  flex-direction: column;
  padding: 18px 18px 28px;
  overflow: hidden;
}

.drawer.open .drawer-panel {
  transform: translateX(0);
}

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.drawer-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.icon-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.disclaimer {
  margin: 0 0 16px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.78rem;
  line-height: 1.45;
}

.drawer-body {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-right: 4px;
}

.ev-block {
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.ev-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.ev-value {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.45;
  word-break: break-word;
}

.shard-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.shard-list li {
  margin: 4px 0;
}

.versions-grid {
  display: grid;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.versions-grid span strong {
  color: var(--text-muted);
  font-weight: 600;
}

.advanced {
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.linkish {
  appearance: none;
  border: 0;
  background: none;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.report-json {
  margin: 10px 0 0;
  padding: 12px;
  border-radius: 10px;
  background: #0a0f05;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.7rem;
  line-height: 1.4;
  overflow: auto;
  max-height: 240px;
  white-space: pre-wrap;
  word-break: break-word;
}

.report-json.hidden {
  display: none;
}

.typing {
  display: inline-flex;
  gap: 5px;
  align-items: center;
  padding: 4px 0;
}

.typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.35;
  animation: blink 1s infinite ease-in-out;
}

.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }

@keyframes blink {
  0%, 100% { opacity: 0.25; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-2px); }
}

@media (max-width: 420px) {
  .app {
    padding: 0 12px env(safe-area-inset-bottom);
  }

  .header-meta {
    display: none;
  }

  .header-actions {
    gap: 8px;
  }

  .composer-form {
    border-radius: 16px;
  }

  .send-btn {
    padding: 12px 14px;
  }

  .drawer-panel {
    width: 100%;
  }
}