/* nrs-aegent.css — regulator-desk aesthetic.
 *
 * Deep charcoal base, instrument-panel amber accents, IBM Plex Mono
 * for data, Familjen Grotesk for body, Major Mono Display for the
 * brand stamp. Contrast tuned for WCAG AAA on body text (>7:1) and
 * AA on non-text (>3:1) per CLAUDE.md aesthetic system.
 */

:root {
  --rd-bg-deep:   #0c0e12;
  --rd-bg:        #14171c;
  --rd-panel:     #1a1d23;
  --rd-panel-2:   #20242b;
  --rd-border:    #2a2f37;
  --rd-border-2:  #353b45;
  --rd-fg:        #e7eaee;
  --rd-fg-soft:   #b9bec7;
  --rd-muted:     #8a9098;
  --rd-accent:    #ffb547;    /* instrument-panel amber */
  --rd-accent-2:  #ffd28a;
  --rd-cyan:      #6fd0e6;
  --rd-success:   #6ed46a;
  --rd-danger:    #f06c6c;

  --font-display: "Major Mono Display", monospace;
  --font-body:    "Familjen Grotesk", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", "Menlo", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--rd-bg-deep);
  color: var(--rd-fg);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: var(--rd-accent);
  text-decoration: none;
  border-bottom: 1px dotted rgba(255, 181, 71, 0.5);
}
a:hover, a:focus { color: var(--rd-accent-2); border-bottom-color: var(--rd-accent-2); }

/* ---------- header */

.brand-bar {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--rd-border);
  background: linear-gradient(180deg, var(--rd-bg) 0%, var(--rd-bg-deep) 100%);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-glyph {
  font-size: 22px;
  color: var(--rd-accent);
  text-shadow: 0 0 12px rgba(255, 181, 71, 0.35);
  line-height: 1;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--rd-fg);
  text-transform: lowercase;
}

.brand-dash { color: var(--rd-accent); margin: 0 1px; }

.brand-tag {
  color: var(--rd-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.status-rail {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--rd-border-2);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--rd-fg-soft);
  letter-spacing: 0.04em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rd-muted);
  display: inline-block;
}

.status-dot-alive { background: var(--rd-success); box-shadow: 0 0 6px rgba(110, 212, 106, 0.6); }
.status-dot-dead  { background: var(--rd-danger);  box-shadow: 0 0 6px rgba(240, 108, 108, 0.6); }
.status-dot-quiet { background: var(--rd-muted); }

/* ---------- layout */

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 16px;
  padding: 16px 24px;
  min-height: 0;
}

@media (max-width: 920px) {
  .layout { grid-template-columns: 1fr; }
}

/* ---------- chat */

.chat-pane {
  display: flex;
  flex-direction: column;
  background: var(--rd-panel);
  border: 1px solid var(--rd-border);
  border-radius: 8px;
  min-height: 0;
  overflow: hidden;
}

.chat-conversation {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-hint {
  color: var(--rd-muted);
  font-style: italic;
  padding: 24px;
  text-align: center;
  border: 1px dashed var(--rd-border);
  border-radius: 6px;
  background: var(--rd-bg);
}

.chat-bubble {
  border-radius: 6px;
  padding: 10px 14px;
  border: 1px solid var(--rd-border);
  background: var(--rd-bg);
  max-width: 95%;
}

.chat-bubble-q {
  align-self: flex-end;
  background: var(--rd-panel-2);
  border-color: var(--rd-border-2);
}

.chat-bubble-a {
  align-self: flex-start;
  background: var(--rd-bg);
}

.chat-bubble-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--rd-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.chat-bubble-mode {
  color: var(--rd-accent);
  font-size: 10px;
  text-transform: uppercase;
  padding: 0 4px;
  border: 1px solid rgba(255, 181, 71, 0.4);
  border-radius: 2px;
}

.chat-bubble-ts {
  margin-left: auto;
  color: var(--rd-muted);
  font-variant-numeric: tabular-nums;
}

.chat-bubble-body {
  color: var(--rd-fg);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.chat-cite {
  display: inline-block;
  padding: 1px 4px;
  margin: 0 1px;
  background: rgba(138, 144, 152, 0.18);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--rd-muted);
  border-bottom: none !important;
  text-decoration: none;
}

.chat-cite-active {
  background: rgba(255, 181, 71, 0.18);
  color: var(--rd-accent);
}

.chat-cite:hover { background: var(--rd-accent); color: #1a1a1a; }

.chat-sources-wrap {
  margin-top: 10px;
  border-top: 1px solid var(--rd-border);
  padding-top: 8px;
  font-size: 12px;
}

.chat-sources-wrap summary {
  cursor: pointer;
  color: var(--rd-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  outline: none;
  padding: 4px 0;
}

.chat-sources {
  margin: 6px 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-source-item {
  font-size: 12px;
  line-height: 1.45;
}

.chat-source-meta {
  color: var(--rd-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.chat-error { border-color: var(--rd-danger); }
.chat-error .chat-bubble-body { color: var(--rd-danger); }

.chat-pending .chat-pending-dots {
  display: inline-block;
  color: var(--rd-muted);
  letter-spacing: 0.4em;
  animation: pending-pulse 1.4s ease-in-out infinite;
}

@keyframes pending-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.chat-empty { color: var(--rd-muted); font-style: italic; }

/* ---------- chat form */

.chat-form {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rd-border);
  background: var(--rd-bg);
  padding: 10px 14px;
  gap: 8px;
}

.chat-input {
  width: 100%;
  background: var(--rd-bg-deep);
  color: var(--rd-fg);
  border: 1px solid var(--rd-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
  padding: 10px 12px;
  resize: vertical;
  min-height: 56px;
}

.chat-input:focus {
  outline: none;
  border-color: var(--rd-accent);
  box-shadow: 0 0 0 2px rgba(255, 181, 71, 0.18);
}

.chat-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}

.chat-mode, .chat-k {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--rd-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.chat-mode select, .chat-k input {
  background: var(--rd-bg-deep);
  color: var(--rd-fg);
  border: 1px solid var(--rd-border);
  border-radius: 3px;
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.chat-k input { width: 50px; text-align: right; font-variant-numeric: tabular-nums; }

.chat-submit {
  margin-left: auto;
  background: var(--rd-accent);
  color: #1a1a1a;
  border: 1px solid var(--rd-accent);
  padding: 6px 18px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.chat-submit:hover, .chat-submit:focus {
  background: var(--rd-accent-2);
  border-color: var(--rd-accent-2);
  outline: none;
}

.chat-submit:disabled {
  background: var(--rd-muted);
  border-color: var(--rd-muted);
  color: var(--rd-bg-deep);
  cursor: not-allowed;
}

/* ---------- audio side */

.audio-side { min-width: 0; }
.audio-side .audio-pane { height: 100%; }


/* ---------- tts toggle + speak buttons */

.chat-tts-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--rd-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.chat-tts-wrap input[type="checkbox"] {
  accent-color: var(--rd-accent);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.chat-tts-wrap input[type="checkbox"]:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.chat-speak-btn {
  background: transparent;
  color: var(--rd-fg-soft);
  border: 1px solid var(--rd-border);
  border-radius: 3px;
  width: 24px;
  height: 22px;
  padding: 0;
  margin-left: auto;
  font-size: 12px;
  cursor: pointer;
  line-height: 1;
}

.chat-speak-btn:hover,
.chat-speak-btn:focus {
  background: var(--rd-accent);
  color: #1a1a1a;
  border-color: var(--rd-accent);
  outline: none;
}

.chat-mic {
  background: transparent;
  color: var(--rd-fg-soft);
  border: 1px solid var(--rd-border);
  width: 36px;
  height: 32px;
  border-radius: 4px;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.chat-mic:hover,
.chat-mic:focus {
  background: var(--rd-border);
  color: var(--rd-accent);
  outline: none;
}

.chat-mic.listening {
  background: var(--rd-danger);
  color: #1a1a1a;
  border-color: var(--rd-danger);
  animation: chat-mic-pulse 1.2s ease-in-out infinite;
}

.chat-mic:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@keyframes chat-mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(240, 108, 108, 0.6); }
  50% { box-shadow: 0 0 0 8px rgba(240, 108, 108, 0); }
}

.status-clear {
  background: transparent;
  color: var(--rd-muted);
  border: 1px solid var(--rd-border-2);
  border-radius: 4px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.status-clear:hover,
.status-clear:focus {
  background: var(--rd-border);
  color: var(--rd-fg);
  outline: none;
}

.chat-bubble-p {
  margin: 0 0 10px 0;
  white-space: pre-wrap;
}
.chat-bubble-p:last-child { margin-bottom: 0; }

.chat-source-copy {
  background: transparent;
  color: var(--rd-muted);
  border: 1px solid transparent;
  width: 22px;
  height: 18px;
  border-radius: 3px;
  margin-left: 6px;
  padding: 0;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  vertical-align: middle;
}

.chat-source-copy:hover,
.chat-source-copy:focus {
  background: var(--rd-border);
  color: var(--rd-accent);
  border-color: var(--rd-border-2);
  outline: none;
}

/* ---------- sign-in overlay (mail-gate) */

.signin-overlay[hidden] { display: none; }

.signin-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 9, 11, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.signin-card {
  background: var(--rd-panel);
  border: 1px solid var(--rd-border-2);
  border-radius: 10px;
  max-width: 420px;
  width: 100%;
  padding: 32px 28px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
  color: var(--rd-fg);
}

.signin-head {
  text-align: center;
  margin-bottom: 22px;
}

.signin-glyph {
  font-size: 36px;
  color: var(--rd-accent);
  text-shadow: 0 0 14px rgba(255, 181, 71, 0.45);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}

.signin-head h2 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.08em;
  margin: 0 0 4px 0;
  color: var(--rd-fg);
  text-transform: lowercase;
}

.signin-tag {
  color: var(--rd-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  margin: 0;
  letter-spacing: 0.05em;
}

.signin-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.signin-form label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--rd-muted);
}

.signin-form input[type="email"] {
  background: var(--rd-bg-deep);
  color: var(--rd-fg);
  border: 1px solid var(--rd-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 10px 12px;
}

.signin-form input[type="email"]:focus {
  outline: none;
  border-color: var(--rd-accent);
  box-shadow: 0 0 0 2px rgba(255, 181, 71, 0.18);
}

.signin-submit {
  margin-top: 4px;
  background: var(--rd-accent);
  color: #1a1a1a;
  border: 1px solid var(--rd-accent);
  padding: 10px 16px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.signin-submit:hover,
.signin-submit:focus {
  background: var(--rd-accent-2);
  border-color: var(--rd-accent-2);
  outline: none;
}

.signin-submit:disabled {
  background: var(--rd-muted);
  border-color: var(--rd-muted);
  color: var(--rd-bg-deep);
  cursor: not-allowed;
}

.signin-status {
  min-height: 1.4em;
  font-family: var(--font-mono);
  font-size: 12px;
  margin: 0 0 14px 0;
  color: var(--rd-muted);
  text-align: center;
}

.signin-status-success { color: var(--rd-success); }
.signin-status-error { color: var(--rd-danger); }

.signin-fine {
  color: var(--rd-muted);
  font-size: 11px;
  line-height: 1.5;
  margin: 0;
  border-top: 1px solid var(--rd-border);
  padding-top: 14px;
}

.status-signout {
  background: transparent;
  color: var(--rd-muted);
  border: 1px solid var(--rd-border-2);
  border-radius: 4px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.status-signout:hover,
.status-signout:focus {
  background: var(--rd-border);
  color: var(--rd-fg);
  outline: none;
}