:root {
  color-scheme: light;

  --moss:#6D7C65; --clay:#A37F55; --mist:#ADADAC; --slate:#474A46;
  --onyx:#252723; --fog:#D9D9D7; --paper:#F2F2F0; --cap:#F0F4F6; --night:#16190F;
  --danger:#B4472E;

  --bg-color: var(--moss);
  --text-color: var(--onyx);
  --text-muted: var(--slate);
  --accent-color: var(--clay);
  --accent-text: color-mix(in srgb, var(--clay) 58%, var(--onyx));
  --accent-hover: color-mix(in srgb, var(--clay) 80%, var(--onyx));
  --border-color: var(--fog);
  --card-bg: var(--cap);
  --log-bg: var(--onyx);
  --log-text: var(--fog);
  --error-bg: color-mix(in srgb, var(--danger) 12%, var(--card-bg));
  --danger-color: var(--danger);
  --error-text: var(--danger-color);
  --success-color: var(--moss);
  --dot-color: var(--clay);
  --btn-primary-bg: var(--slate);
  --btn-primary-fg: var(--cap);
  --canvas-fg: var(--cap);
  --focus-shadow: 0 0 0 2px var(--accent-color), 0 0 0 7px color-mix(in srgb, var(--clay) 30%, transparent);
  --btn-primary-hover: color-mix(in srgb, var(--slate) 78%, var(--onyx));
  --mode-selected-border: var(--accent-color);

  --transition-speed: 0.3s;
  --font-family: "Inter", system-ui, -apple-system, sans-serif;   /* body (replace existing) */
  --font-display: "Space Grotesk", system-ui, sans-serif;          /* headings, wordmark, buttons */
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;           /* labels, logs, status, eyebrows */
}

:root[data-theme="dark"] {
  color-scheme: dark;

  /* Keep this dark token set in sync with the auto-dark fallback below. */
  --bg-color: var(--night);
  --card-bg: color-mix(in srgb, var(--moss) 30%, var(--onyx));
  --text-color: var(--fog);
  --text-muted: color-mix(in srgb, var(--mist) 55%, var(--fog));
  --border-color: color-mix(in srgb, var(--fog) 16%, var(--card-bg));
  --accent-color: var(--clay);
  --accent-text: color-mix(in srgb, var(--clay) 40%, var(--fog));
  --accent-hover: color-mix(in srgb, var(--clay) 72%, var(--fog));
  --log-bg: var(--onyx);
  --log-text: var(--fog);
  --error-bg: color-mix(in srgb, var(--danger) 20%, var(--onyx));
  --danger-color: color-mix(in srgb, var(--danger) 45%, var(--fog));
  --error-text: var(--danger-color);
  --success-color: var(--moss);
  --dot-color: var(--clay);
  --btn-primary-bg: var(--mist);
  --btn-primary-fg: var(--onyx);
  --canvas-fg: var(--fog);
  --focus-shadow: 0 0 0 1px var(--accent-color);
  --btn-primary-hover: var(--fog);
  --mode-selected-border: var(--accent-text);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;

    /* Keep this dark token set in sync with the user/JS-forced dark tokens above. */
    --bg-color: var(--night);
    --card-bg: color-mix(in srgb, var(--moss) 30%, var(--onyx));
    --text-color: var(--fog);
    --text-muted: color-mix(in srgb, var(--mist) 55%, var(--fog));
    --border-color: color-mix(in srgb, var(--fog) 16%, var(--card-bg));
    --accent-color: var(--clay);
    --accent-text: color-mix(in srgb, var(--clay) 40%, var(--fog));
    --accent-hover: color-mix(in srgb, var(--clay) 72%, var(--fog));
    --log-bg: var(--onyx);
    --log-text: var(--fog);
    --error-bg: color-mix(in srgb, var(--danger) 20%, var(--onyx));
    --danger-color: color-mix(in srgb, var(--danger) 45%, var(--fog));
    --error-text: var(--danger-color);
    --success-color: var(--moss);
    --dot-color: var(--clay);
    --btn-primary-bg: var(--mist);
    --btn-primary-fg: var(--onyx);
    --canvas-fg: var(--fog);
    --focus-shadow: 0 0 0 1px var(--accent-color);
    --btn-primary-hover: var(--fog);
    --mode-selected-border: var(--accent-text);
  }
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
.brand-wordmark {
  font-family: var(--font-display);
}

button {
  font-family: var(--font-display);
}

:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 3px;
}

.theme-toggle {
  position: fixed;
  top: 12px;
  right: 86px;
  z-index: 70;
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed);
}

.theme-toggle:hover {
  background: var(--border-color);
  color: var(--text-color);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.theme-icon-sun {
  display: none;
}

.theme-toggle[data-resolved-theme="dark"] .theme-icon-moon {
  display: none;
}

.theme-toggle[data-resolved-theme="dark"] .theme-icon-sun {
  display: block;
}

/* Native form controls follow the brand, not the OS blue. */
input[type="radio"],
input[type="checkbox"] {
  accent-color: var(--accent-color);
}

/* Master container centered by default (Home state) */
.app-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  box-sizing: border-box;
  justify-content: center;
  transition: justify-content var(--transition-speed) ease;
}

/* Compact layout for Searching/Results/Error states */
body.compact-mode .app-container {
  justify-content: flex-start;
}

/* Main content element */
.main-content {
  display: flex;
  flex-direction: column;
  width: 100%;
}

/* Brand Wordmark (centered by default) */
.brand-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 2rem;
  transition: align-items var(--transition-speed) ease, margin-bottom var(--transition-speed) ease;
}

.brand-wordmark {
  font-size: 3.5rem;
  font-weight: 600;
  letter-spacing: 0;
  margin: 0;
  color: var(--canvas-fg);
  transition: font-size var(--transition-speed) ease, margin-bottom var(--transition-speed) ease;
}

body.compact-mode .brand-container {
  align-items: flex-start;
  margin-bottom: 1rem;
}

body.compact-mode .brand-wordmark {
  font-size: 1.5rem;
  font-weight: 700;
}

/* Search Box Area */
.search-section {
  width: 100%;
  margin-bottom: 2.5rem;
  transition: margin-bottom var(--transition-speed) ease;
}

body.compact-mode .search-section {
  margin-bottom: 1.5rem;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  border-radius: 9999px;
  padding: 0.25rem 0.5rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-box:focus-within {
  border-color: var(--accent-color);
  box-shadow: var(--focus-shadow);
}

#searchInput {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-color);
  font-size: 1.125rem;
  padding: 0.75rem 1rem;
}

#searchInput::placeholder {
  color: var(--text-muted);
}

#searchInput:focus-visible {
  outline: none;
}

.mic-button, .search-submit-button {
  background: transparent;
  border: none;
  outline: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.625rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, background-color 0.2s ease;
}

/* Submit is the primary action — keep it on the accent; the mic stays neutral until used. */
.search-submit-button {
  color: var(--accent-text);
}

.mic-button:focus-visible,
.search-submit-button:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.mic-button:hover, .search-submit-button:hover {
  color: var(--accent-color);
  background-color: color-mix(in srgb, var(--accent-color) 13%, transparent);
}

/* Submit is the primary action — give it the brand color on hover/focus. */
.search-submit-button:hover, .search-submit-button:focus-visible {
  color: var(--accent-color);
  background-color: color-mix(in srgb, var(--accent-color) 14%, transparent);
}

/* Dynamic dictation status under search box */
.dictation-status {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  color: var(--canvas-fg);
  text-align: center;
  animation: fadeIn 0.3s ease;
}

.dictation-status.error {
  display: table;
  margin-left: auto;
  margin-right: auto;
  padding: 0.4rem 0.7rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--danger-color);
}

/* Obvious pulsing recording state */
.mic-button.recording {
  color: var(--danger-color);
  background-color: color-mix(in srgb, var(--danger) 10%, transparent);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 color-mix(in srgb, var(--danger) 30%, transparent); }
  70% { transform: scale(1.08); box-shadow: 0 0 0 8px color-mix(in srgb, var(--danger) 0%, transparent); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 color-mix(in srgb, var(--danger) 0%, transparent); }
}

/* State Panels */
.state-container {
  width: 100%;
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#searchingState {
  box-sizing: border-box;
  padding: 1.5rem;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.hidden {
  display: none !important;
}

/* Searching State Details */
.searching-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.searching-title {
  font-weight: 500;
}

.searching-timer {
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.searching-meta {
  display: flex;
  align-items: center;
}

.btn-stop {
  margin-left: 14px;
  padding: 6px 16px;
  border: 1px solid var(--danger-color);
  color: var(--danger-color);
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.btn-stop:hover {
  background-color: color-mix(in srgb, var(--danger) 10%, transparent);
}

/* Progress sliding bar for motion without card-shadow soup */
.progress-bar-container {
  height: 2px;
  background-color: var(--border-color);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.progress-bar-fill {
  height: 100%;
  width: 30%;
  background-color: var(--accent-color);
  border-radius: 999px;
  animation: progress-slide 2s infinite linear;
}

@keyframes progress-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(330%); }
}

/* Console logs */
.progress-log-container {
  background-color: var(--log-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
  max-height: 260px;
  overflow-y: auto;
  box-sizing: border-box;
}

.progress-log-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0;
  color: color-mix(in srgb, var(--log-text) 78%, var(--moss));
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.progress-log-lines {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--log-text);
}

.log-line {
  margin-bottom: 0.25rem;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Done State details */
.result-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  background-color: var(--card-bg);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.result-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

/* Elegant audio play button */
.audio-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  border: none;
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.audio-button:hover {
  background-color: var(--btn-primary-hover);
}

.audio-button.playing {
  background-color: var(--btn-primary-hover);
  color: var(--btn-primary-fg);
}

.audio-button svg {
  flex-shrink: 0;
}

.result-summary-content {
  font-size: 1.0625rem;
  color: var(--text-color);
}

.result-summary-content p {
  margin: 0 0 1rem 0;
}

.result-summary-content p:last-child {
  margin-bottom: 0;
}

/* Citations rendered as superscripts */
.citation-link {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-text);
  text-decoration: none;
  margin: 0 0.15rem;
  vertical-align: super;
}

.citation-link:hover {
  text-decoration: underline;
}

.result-metadata {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Sources section */
.sources-container {
  margin-bottom: 2rem;
}

.sources-container h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 1rem 0;
  color: var(--canvas-fg);
}

.sources-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.source-item,
.source-item-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-color);
  overflow: hidden;
}

.source-item {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--card-bg);
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.source-item:hover {
  border-color: var(--accent-color);
  transform: translateY(-1px);
}

.source-container {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--card-bg);
  transition: border-color 0.2s ease, transform 0.15s ease;
  display: flex;
  flex-direction: column;
}

.source-container:hover {
  border-color: var(--accent-color);
  transform: translateY(-1px);
}

.source-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  gap: 0.75rem;
}

.source-item-link {
  flex: 1;
}

.source-notes-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.source-notes-toggle:hover {
  color: var(--accent-color);
  background-color: color-mix(in srgb, var(--accent-color) 10%, transparent);
}

.source-notes-toggle:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.source-notes-toggle .chevron-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
  width: 16px;
  height: 16px;
}

.source-notes-toggle[aria-expanded="true"] .chevron-icon {
  transform: rotate(180deg);
}

.source-notes-panel {
  border-top: 1px dashed var(--border-color);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--text-color);
  animation: fadeIn 0.2s ease;
}

.source-notes-panel ul {
  margin: 0;
  padding-left: 1.25rem;
}

.source-notes-panel li {
  margin-bottom: 0.25rem;
}

.source-notes-panel li:last-child {
  margin-bottom: 0;
}

.source-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  flex-shrink: 0;
}

.source-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.source-title {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-domain {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Full Report Disclosure */
.findings-disclosure {
  margin-bottom: 2rem;
}

.findings-disclosure details {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--card-bg);
  overflow: hidden;
}

.findings-disclosure summary {
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 1rem 3.25rem 1rem 1.25rem; /* right room for the listen button */
  cursor: pointer;
  user-select: none;
  outline: none;
  color: var(--text-color);
  position: relative;
}

.findings-disclosure summary:hover {
  background-color: var(--border-color);
}

.findings-disclosure summary:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

/* Small circular play/stop control in the report header. */
.report-listen-btn {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--btn-primary-bg);
  background: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

.report-listen-btn:hover {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  color: var(--btn-primary-fg);
}

.report-listen-btn.playing {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  color: var(--btn-primary-fg);
}

.report-listen-btn[disabled] {
  opacity: 0.45;
  cursor: default;
}

.findings-content {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  max-height: 400px;
  overflow-y: auto;
  font-size: 0.95rem;
  line-height: 1.6;
}

.findings-content h1 {
  font-size: 1.35rem;
  margin-top: 0;
  margin-bottom: 1rem;
}

.findings-content h2 {
  font-size: 1.15rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.findings-content p {
  margin: 0 0 1rem 0;
}

.findings-content ul, .findings-content ol {
  margin: 0 0 1rem 0;
  padding-left: 1.5rem;
}

.findings-content li {
  margin-bottom: 0.25rem;
}

.findings-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
}

/* Error UI */
.error-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  background-color: var(--card-bg);
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
}

.error-icon {
  color: var(--danger-color);
  margin-bottom: 1rem;
}

.error-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.error-message {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.error-details {
  margin-bottom: 1.5rem;
  text-align: left;
}

.error-details summary {
  font-size: 0.8125rem;
  color: var(--text-muted);
  cursor: pointer;
  outline: none;
  user-select: none;
}

.error-details summary:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.error-details pre {
  margin-top: 0.5rem;
  padding: 1rem;
  background-color: var(--log-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  /* The log surface is always onyx, so error text must be light in BOTH themes
     (the light-theme brick --danger-color is 2.79:1 on onyx). */
  color: color-mix(in srgb, var(--danger) 45%, var(--fog));
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.retry-button {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  border: none;
  border-radius: 9999px;
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.12s ease;
}

.retry-button:hover {
  background-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}
.retry-button:active {
  transform: translateY(0);
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Stepper Styles */
.stepper-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 0.5rem 0.25rem;
}

.step {
  display: flex;
  gap: 1.25rem;
  position: relative;
}

/* Vertical line connecting step circles */
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 11px; /* Center of the 24px wide circle */
  top: 24px;
  bottom: -24px;
  width: 2px;
  background-color: var(--border-color);
  z-index: 1;
}

.step-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background-color: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  flex-shrink: 0;
  color: var(--text-muted);
  box-sizing: border-box;
  transition: border-color var(--transition-speed), background-color var(--transition-speed);
}

.step-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  flex: 1;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-speed);
}

.step-activity {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}

/* Completed Step state */
.step.completed .step-icon {
  border-color: var(--success-color);
  background-color: var(--success-color);
  color: var(--onyx);
}
.step.completed .step-title {
  color: var(--text-color);
}

/* Active Step state */
.step.active .step-icon {
  border-color: var(--moss);
  color: var(--moss);
  animation: vine-bud 1.8s infinite ease-out;
}

/* Growth-vine signature: the stem grows moss through completed steps and fades
   into the not-yet-reached steps at the active "budding" node. */
.step.completed:not(:last-child)::after {
  background-color: var(--moss);
}
.step.active:not(:last-child)::after {
  background: linear-gradient(to bottom, var(--moss), var(--border-color));
}
@keyframes vine-bud {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--moss) 45%, transparent); }
  70% { box-shadow: 0 0 0 9px color-mix(in srgb, var(--moss) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--moss) 0%, transparent); }
}
.step.active .step-title {
  color: var(--text-color);
  font-weight: 600;
}

/* Pulsing dot / spinner for active step icon */
.step-spinner {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--moss);
  animation: step-pulse 1.5s infinite ease-in-out;
}

@keyframes step-pulse {
  0% { transform: scale(0.6); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.6); opacity: 0.5; }
}

/* Pending/Dimmed state */
.step.pending .step-title {
  color: var(--text-muted);
  opacity: 0.6;
}
.step.pending .step-icon {
  opacity: 0.6;
}

/* Detailed Log Collapsible details styling */
.detailed-log-details {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--log-bg);
  overflow: hidden;
  margin-top: 1rem;
}

.detailed-log-details summary {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 0.75rem 1rem;
  cursor: pointer;
  user-select: none;
  outline: none;
  color: color-mix(in srgb, var(--log-text) 78%, var(--moss));
  text-transform: uppercase;
  letter-spacing: 0;
  transition: background-color var(--transition-speed);
}

.detailed-log-details summary:hover {
  background-color: color-mix(in srgb, var(--fog) 10%, var(--onyx));
  color: var(--log-text);
}

.detailed-log-details summary:focus-visible {
  /* This summary sits on the always-onyx log surface, so the ring must be light
     in both themes (light-theme --accent-text is dark and only 1.96:1 here). */
  outline: 2px solid color-mix(in srgb, var(--clay) 91%, var(--fog));
  outline-offset: 2px;
}

.detailed-log-details[open] summary {
  border-bottom: 1px solid var(--border-color);
}

.detailed-log-details .progress-log-lines {
  padding: 1rem;
  max-height: 200px;
  overflow-y: auto;
  box-sizing: border-box;
}

.text-muted {
  color: var(--text-muted);
}

/* ===================== Past researches sidebar ===================== */
.history-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 260px;
  background: var(--card-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 50;
  box-sizing: border-box;
  transform: translateX(0);
  transition: transform var(--transition-speed) ease;
}

body.history-collapsed .history-sidebar {
  transform: translateX(-100%);
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.history-title {
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0;
}

.history-toggle,
.history-open-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.history-toggle:hover,
.history-open-btn:hover {
  background: var(--border-color);
  color: var(--text-color);
}

.history-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.4rem;
}

.history-empty {
  padding: 1rem 0.6rem;
  font-size: 0.85rem;
}

.history-item {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  padding: 0.5rem 0.55rem;
  border-radius: 8px;
  cursor: pointer;
}

.history-item:hover,
.history-item.active {
  background: var(--border-color);
}

.history-item-main {
  flex: 1;
  min-width: 0;
}

.history-item-query {
  display: block;
  font-size: 0.87rem;
  color: var(--text-color);
  /* Wrap to show the full query rather than truncating it with an ellipsis. */
  white-space: normal;
  overflow-wrap: anywhere;
}

.history-item-time {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* In-progress sidebar rows: live status line with a pulsing spinner. */
.history-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 3px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-item.in-progress .history-status .step-spinner {
  flex-shrink: 0;
}

.history-delete-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.05rem;
  line-height: 1;
  padding: 0 4px;
  opacity: 0;
  flex-shrink: 0;
  border-radius: 4px;
}

.history-item:hover .history-delete-btn {
  opacity: 0.65;
}

.history-delete-btn:hover {
  color: var(--danger-color);
  opacity: 1;
}

.history-open-btn {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 40;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  display: none;
}

body.history-collapsed .history-open-btn {
  display: flex;
}

.history-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--onyx) 40%, transparent);
  z-index: 45;
}

/* Desktop: when open, shift the app right so the drawer never overlaps content */
@media (min-width: 901px) {
  body {
    transition: padding-left var(--transition-speed) ease;
  }
  body:not(.history-collapsed) {
    padding-left: 260px;
  }
}

/* Mobile: drawer overlays content with a dismiss backdrop */
@media (max-width: 900px) {
  .history-sidebar {
    width: 82vw;
    max-width: 320px;
  }
  body:not(.history-collapsed) .history-backdrop {
    display: block;
  }
  /* Keep the fixed open-menu button from covering the compact-mode title */
  body.compact-mode.history-collapsed .brand-container {
    padding-left: 50px;
  }
}

/* Inline submit error under the search bar — non-blocking, auto-dismisses. */
.submit-error {
  margin-top: 0.6rem;
  margin-right: auto;
  margin-left: auto;
  width: fit-content;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 0.75rem;
  text-align: center;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--danger-color);
}

.submit-error.hidden {
  display: none;
}

/* Reconnect toast: shown only after repeated poll failures; never blocks. */
.reconnect-notice {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  z-index: 60;
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--onyx) 18%, transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.reconnect-notice.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===================== About (top-right trigger + modal) ===================== */
.about-link {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 40;
  padding: 6px 14px;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

.about-link:hover {
  background: var(--border-color);
  color: var(--text-color);
}

.about-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: color-mix(in srgb, var(--onyx) 50%, transparent);
}

.about-overlay.hidden {
  display: none;
}

.about-modal {
  position: relative;
  width: 100%;
  max-width: 540px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 2rem 2rem 1.75rem;
  box-shadow: 0 12px 40px color-mix(in srgb, var(--onyx) 30%, transparent);
}

.about-close {
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 6px;
}

.about-close:hover {
  background: var(--border-color);
  color: var(--text-color);
}

.about-title {
  margin: 0 0 1rem;
  font-size: 1.4rem;
}

.about-body {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-color);
}

.about-body h3 {
  font-size: 1.05rem;
  margin: 1.4rem 0 0.5rem;
}

.about-body p {
  margin: 0 0 0.85rem;
}

.about-body ol {
  margin: 0 0 0.85rem;
  padding-left: 1.3rem;
}

.about-body li {
  margin-bottom: 0.4rem;
}

/* Research mode selector under the search box */
.mode-selector {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 12px auto 0;
  flex-wrap: wrap;
}
.mode-option {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted, var(--slate));
  background: var(--card-bg);
  border: 1px solid var(--border-color, var(--mist));
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
}
/* The radio itself is visually hidden — the pill IS the control. Kept in the
   layout tree (not display:none) so it stays focusable and screen-readable. */
.mode-option input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  pointer-events: none;
}
.mode-option {
  position: relative;
}
.mode-option:hover {
  border-color: color-mix(in srgb, var(--moss) 55%, var(--border-color));
}
/* Highlight the option whose radio is selected — a filled segmented pill. */
.mode-option:has(input:checked) {
  color: var(--text-color, var(--onyx));
  border-color: var(--mode-selected-border);
  background-color: color-mix(in srgb, var(--moss) 14%, var(--card-bg));
}
/* Keyboard focus lands on the hidden radio; ring the pill instead. */
.mode-option:has(input:focus-visible) {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* ===================== Auth screens (login / set-password) ================== */
/* Full-viewport, centered, on-brand with the existing wordmark + design tokens. */
.auth-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background-color: var(--bg-color);
  z-index: 50;
}

.auth-card {
  width: 100%;
  max-width: 392px;
  display: flex;
  flex-direction: column;
  text-align: center;
  position: relative;
  box-sizing: border-box;
  padding: 0 1.5rem 1.5rem;
}

.auth-card::before {
  content: '';
  position: absolute;
  inset: 3.65rem 0 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.auth-card > * {
  position: relative;
  z-index: 1;
}

.auth-wordmark {
  font-size: 2.4rem;
  margin: 0 0 1rem;
  color: var(--canvas-fg);
}

.auth-subtitle {
  color: var(--text-muted);
  margin: 0 0 1.75rem;
  padding-top: 1.25rem;
  font-size: 0.95rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
}

.auth-label {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.auth-input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--text-color);
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: border-color var(--transition-speed) ease;
}
.auth-input:focus {
  outline: none;
  border-color: var(--accent-color);
}
.auth-input:focus:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.auth-submit {
  margin-top: 1.1rem;
  padding: 0.7rem 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--btn-primary-fg);
  background-color: var(--btn-primary-bg);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease, transform 0.12s ease;
}
.auth-submit:hover {
  background-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}
.auth-submit:active {
  transform: translateY(0);
}

.auth-link {
  margin-top: 0.9rem;
  background: none;
  border: none;
  color: var(--accent-text);
  font-family: var(--font-display);
  font-size: 0.85rem;
  cursor: pointer;
  text-align: center;
}
.auth-link:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}
.auth-link:hover {
  text-decoration: underline;
}

.auth-error,
.auth-info {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  text-align: center;
}
.auth-error {
  color: var(--danger-color);
}
.auth-info {
  color: var(--text-muted);
}

/* Standalone banner (app-load failure) pinned to the top of the page. */
.auth-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  margin: 0;
  padding: 0.75rem 1rem;
  background-color: var(--error-bg);
  /* Danger text on --error-bg is only 4.09:1 in light; the tinted background
     already signals the error, so use high-contrast body text. */
  color: var(--text-color);
  border-bottom: 2px solid var(--danger-color);
  z-index: 100;
}

@media (prefers-reduced-motion: reduce) {
  .dictation-status,
  .mic-button.recording,
  .state-container,
  .progress-bar-fill,
  .step-spinner,
  .step.active .step-icon {
    animation: none;
  }

  body,
  .app-container,
  .brand-container,
  .brand-wordmark,
  .search-section,
  .search-box,
  .mic-button,
  .search-submit-button,
  .theme-toggle,
  .history-sidebar,
  .reconnect-notice {
    transition-duration: 0.01ms;
  }

  .source-item:hover,
  .retry-button:hover,
  .auth-submit:hover,
  .button:hover {
    transform: none !important;
  }
}

/* Experiments panel & gear toggle */
.experiments-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed);
  margin-left: 8px;
  align-self: center;
}
.experiments-toggle:hover {
  background: var(--border-color);
  color: var(--text-color);
}
.experiments-toggle.active {
  border-color: var(--accent-color);
  color: var(--accent-text);
  background-color: color-mix(in srgb, var(--accent-color) 12%, var(--card-bg));
}
.experiments-panel {
  margin: 1.25rem auto 0;
  padding: 1.25rem;
  background-color: var(--card-bg);
  border: 1px dashed var(--accent-color);
  border-radius: 8px;
  max-width: 480px;
  width: 100%;
  box-sizing: border-box;
  animation: fadeIn 0.3s ease;
}
.experiments-panel-header {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}
.experiments-toggles {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.experiments-toggle-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-color);
  cursor: pointer;
  user-select: none;
}
.experiments-toggle-option input[type="checkbox"] {
  cursor: pointer;
}


/* Instant mode: engine picker shown only while the Instant chip is active */
.instant-engine {
  font-size: 0.8rem;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--border-color, #ccc);
  background: var(--surface-color, #fff);
  color: inherit;
  max-width: 260px;
}