/* ===== CSS Variables — Dark (default) & Light themes ===== */
:root {
  --bg-deep: #0a0e14;
  --bg-surface: #121a24;
  --bg-elevated: #1a2535;
  --bg-card: rgba(18, 26, 36, 0.85);
  --text-primary: #c8d6e0;
  --text-secondary: #7a8f9e;
  --text-muted: #4a5f6e;
  --accent-green: #1a5c3a;
  --accent-green-bright: #2d8f5c;
  --accent-green-glow: rgba(45, 143, 92, 0.35);
  --accent-gold: #8b7355;
  --accent-gold-bright: #c4a35a;
  --accent-red: #6b1a2a;
  --accent-red-bright: #a83248;
  --border: rgba(139, 115, 85, 0.25);
  --border-bright: rgba(196, 163, 90, 0.4);
  --shadow: rgba(0, 0, 0, 0.6);
  --fog: rgba(26, 92, 58, 0.06);
  --font-display: 'Cinzel', 'Noto Serif SC', serif;
  --font-body: 'Noto Serif SC', 'Cinzel', serif;
  --radius: 4px;
  --transition: 0.3s ease;
}

[data-theme="light"] {
  --bg-deep: #e8e4dc;
  --bg-surface: #f4f0e8;
  --bg-elevated: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.92);
  --text-primary: #1a2830;
  --text-secondary: #4a5f6e;
  --text-muted: #7a8f9e;
  --accent-green: #1a5c3a;
  --accent-green-bright: #1f7048;
  --accent-green-glow: rgba(31, 112, 72, 0.2);
  --accent-gold: #6b5a3e;
  --accent-gold-bright: #8b7355;
  --accent-red: #8b2a3a;
  --accent-red-bright: #a83248;
  --border: rgba(107, 90, 62, 0.2);
  --border-bright: rgba(107, 90, 62, 0.45);
  --shadow: rgba(26, 40, 48, 0.12);
  --fog: rgba(26, 92, 58, 0.04);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-deep: #e8e4dc;
    --bg-surface: #f4f0e8;
    --bg-elevated: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.92);
    --text-primary: #1a2830;
    --text-secondary: #4a5f6e;
    --text-muted: #7a8f9e;
    --accent-green-bright: #1f7048;
    --accent-green-glow: rgba(31, 112, 72, 0.2);
    --accent-gold: #6b5a3e;
    --accent-gold-bright: #8b7355;
    --border: rgba(107, 90, 62, 0.2);
    --border-bright: rgba(107, 90, 62, 0.45);
    --shadow: rgba(26, 40, 48, 0.12);
    --fog: rgba(26, 92, 58, 0.04);
  }
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.7;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

/* Background texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, var(--accent-green-glow) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(107, 26, 42, 0.08) 0%, transparent 50%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(139, 115, 85, 0.03) 2px,
      rgba(139, 115, 85, 0.03) 4px
    );
  pointer-events: none;
  z-index: 0;
}

.fog-layer {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, var(--fog) 0%, transparent 70%);
  animation: fogDrift 20s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes fogDrift {
  0% { opacity: 0.5; transform: translateX(-2%); }
  100% { opacity: 1; transform: translateX(2%); }
}

.tentacle {
  position: fixed;
  width: 120px;
  height: 400px;
  opacity: 0.04;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(180deg, var(--accent-green-bright), transparent);
  border-radius: 50% 50% 0 0;
  filter: blur(2px);
}

.tentacle-left {
  left: -40px;
  top: 20%;
  transform: rotate(-15deg);
  animation: tentacleSway 8s ease-in-out infinite;
}

.tentacle-right {
  right: -40px;
  bottom: 10%;
  transform: rotate(15deg) scaleX(-1);
  animation: tentacleSway 10s ease-in-out infinite reverse;
}

@keyframes tentacleSway {
  0%, 100% { transform: rotate(-15deg) translateX(0); }
  50% { transform: rotate(-10deg) translateX(10px); }
}

/* ===== Layout ===== */
.container {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 2rem 1.25rem 1rem;
  max-width: 720px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}

.brand h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-gold-bright);
}

.brand-icon {
  display: block;
  font-size: 1.2rem;
  color: var(--accent-green-bright);
  margin-bottom: 0.25rem;
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  margin-top: 0.15rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  opacity: 0.6;
}

/* ===== Panels ===== */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 24px var(--shadow);
  margin-top: 1.25rem;
  transition: background var(--transition), border-color var(--transition);
}

.panel-inner {
  padding: 1.75rem;
}

.panel-inner.center {
  text-align: center;
}

/* ===== Buttons ===== */
.btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.btn:hover:not(:disabled) {
  border-color: var(--border-bright);
  background: var(--bg-surface);
  transform: translateY(-1px);
}

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

.btn-primary {
  background: var(--accent-green);
  border-color: var(--accent-green-bright);
  color: #e8f0e8;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-green-bright);
  box-shadow: 0 0 16px var(--accent-green-glow);
}

.btn-danger {
  background: var(--accent-red);
  border-color: var(--accent-red-bright);
  color: #f0e0e4;
}

.btn-danger:hover:not(:disabled) {
  background: var(--accent-red-bright);
  box-shadow: 0 0 16px rgba(168, 50, 72, 0.3);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--accent-gold-bright);
  background: transparent;
  border-color: var(--border);
}

.btn-sm { font-size: 0.8rem; padding: 0.35rem 0.75rem; }
.btn-block { width: 100%; }
.btn-icon { margin-right: 0.3rem; }

/* ===== Auth ===== */
.auth-panel h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--accent-gold-bright);
  margin-bottom: 0.5rem;
}

.auth-tabs {
  display: flex;
  gap: 0;
  margin: 1.25rem 0 1rem;
  border-bottom: 1px solid var(--border);
}

.auth-tab {
  flex: 1;
  padding: 0.6rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}

.auth-tab.active {
  color: var(--accent-gold-bright);
  border-bottom-color: var(--accent-gold-bright);
}

.auth-form label {
  display: block;
  margin-bottom: 1rem;
}

.auth-form label span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
  letter-spacing: 0.1em;
}

.auth-form input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.auth-form input:focus {
  outline: none;
  border-color: var(--accent-green-bright);
  box-shadow: 0 0 0 2px var(--accent-green-glow);
}

.error-msg {
  color: var(--accent-red-bright);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

/* ===== Tabs ===== */
.tab-nav {
  display: flex;
  gap: 0;
  margin-top: 0.5rem;
}

.tab-btn {
  flex: 1;
  padding: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.tab-btn:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.tab-btn:only-child { border-radius: var(--radius); }

.tab-btn.active {
  background: var(--accent-green);
  border-color: var(--accent-green-bright);
  color: #e8f0e8;
}

.tab-btn:not(.active):hover {
  color: var(--accent-gold-bright);
  border-color: var(--border-bright);
}

/* ===== Action Bar ===== */
.action-bar {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.action-bar .btn { flex: 1; min-width: 140px; }

/* ===== Questions ===== */
.question-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.question-id {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--accent-green-bright);
  letter-spacing: 0.15em;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--accent-green-bright);
  border-radius: var(--radius);
}

.question-context {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

.question-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--accent-gold-bright);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.options-grid {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.option-btn {
  text-align: left;
  padding: 0.85rem 1.1rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.option-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-green-bright);
  transform: scaleY(0);
  transition: transform var(--transition);
}

.option-btn:hover {
  border-color: var(--accent-green-bright);
  background: var(--bg-elevated);
  padding-left: 1.3rem;
}

.option-btn:hover::before {
  transform: scaleY(1);
}

.option-btn.selected {
  border-color: var(--accent-gold-bright);
  background: var(--bg-elevated);
  padding-left: 1.3rem;
}

.option-btn.selected::before {
  background: var(--accent-gold-bright);
  transform: scaleY(1);
}

/* ===== Step Trail ===== */
.step-trail {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.step-trail h3,
.result-path h3 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.step-list {
  list-style: none;
  counter-reset: step;
}

.step-list li {
  counter-increment: step;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.35rem 0 0.35rem 1.75rem;
  position: relative;
  border-left: 1px solid var(--border);
  margin-left: 0.5rem;
}

.step-list li::before {
  content: counter(step);
  position: absolute;
  left: -0.65rem;
  top: 0.35rem;
  width: 1.2rem;
  height: 1.2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold-bright);
}

.step-list li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===== Result ===== */
.result-panel .panel-inner {
  position: relative;
  text-align: center;
}

.result-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--accent-green-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.1); }
}

.result-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.3em;
  margin-bottom: 0.5rem;
}

.result-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent-gold-bright);
  margin-bottom: 0.75rem;
  text-shadow: 0 0 20px var(--accent-green-glow);
  animation: revealText 1s ease-out;
}

.entity-name-block {
  margin-bottom: 1.5rem;
}

.entity-name-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  margin-bottom: 0.35rem;
}

.entity-name-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--accent-green);
  margin: 0;
}

.entity-name-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.entity-name-input {
  flex: 1 1 12rem;
  min-width: 0;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1rem;
}

.detail-entity-name {
  margin-bottom: 1rem;
  text-align: left;
}

@keyframes revealText {
  from { opacity: 0; transform: translateY(10px); filter: blur(4px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.result-path {
  text-align: left;
  margin-bottom: 1.5rem;
}

.result-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.save-status {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--accent-green-bright);
}

/* ===== Welcome ===== */
.welcome-panel .eldritch-symbol {
  font-size: 3rem;
  color: var(--accent-green-bright);
  margin-bottom: 1rem;
  animation: symbolPulse 4s ease-in-out infinite;
}

@keyframes symbolPulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.welcome-panel h2 {
  font-family: var(--font-display);
  color: var(--accent-gold-bright);
  margin-bottom: 0.75rem;
}

.hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ===== History ===== */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.history-item:hover {
  border-color: var(--border-bright);
  background: var(--bg-elevated);
}

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

.history-item-result {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.history-item-name {
  font-size: 0.82rem;
  color: var(--accent-green);
  margin-top: 0.25rem;
  line-height: 1.35;
}

.history-item-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
  margin-left: 1rem;
  flex-shrink: 0;
}

.history-item .random-badge {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  background: var(--accent-red);
  color: #f0e0e4;
  border-radius: 2px;
  margin-right: 0.5rem;
  vertical-align: middle;
}

.empty-msg {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 0;
  font-style: italic;
}

.detail-panel .detail-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.detail-copy-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.back-btn { margin-bottom: 1rem; }

/* ===== Extension layer ===== */
.result-extensions,
.ext-answered-block {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  text-align: left;
}

.ext-list li::before {
  content: '◆';
  font-size: 0.5rem;
  color: var(--accent-green-bright);
}

.ext-pick-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1rem 0;
}

.ext-pick-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}

.ext-pick-item:hover:not(.disabled) {
  border-color: var(--accent-green-bright);
  background: var(--bg-elevated);
}

.ext-pick-item.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ext-pick-dim {
  font-size: 0.7rem;
  color: var(--accent-green-bright);
  border: 1px solid var(--accent-green-bright);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius);
  white-space: nowrap;
}

.ext-pick-text {
  flex: 1;
  font-size: 0.9rem;
}

.ext-custom-block {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.ext-custom-block label span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.ext-custom-block input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  margin-bottom: 0.5rem;
}

/* ===== Library ===== */
.ext-form {
  margin: 1.25rem 0;
  padding: 1.25rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.ext-form h3 {
  font-family: var(--font-display);
  color: var(--accent-gold-bright);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.ext-form label {
  display: block;
  margin-bottom: 0.85rem;
}

.ext-form label > span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.ext-form input[type="text"],
.ext-form textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
}

.checkbox-label input { width: auto; }

.form-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.library-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.library-item {
  padding: 1rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.library-item.disabled-item {
  opacity: 0.55;
}

.library-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.library-item-actions {
  display: flex;
  gap: 0.35rem;
  flex-shrink: 0;
}

.library-item-dim {
  font-size: 0.7rem;
  color: var(--accent-green-bright);
  border: 1px solid var(--accent-green-bright);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius);
  margin-bottom: 0.35rem;
  display: inline-block;
}

.library-item-text {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.library-item-options {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.ext-badge {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  background: var(--accent-green);
  color: #e8f0e8;
  border-radius: 2px;
  margin-right: 0.35rem;
  vertical-align: middle;
}

.ai-badge {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  background: var(--accent-gold);
  color: #1a2830;
  border-radius: 2px;
  margin-right: 0.35rem;
  vertical-align: middle;
}

/* ===== AI section ===== */
.ai-section {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.ai-section h3 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent-gold-bright);
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
}

.ai-status-hint {
  font-size: 0.8rem;
  color: var(--accent-red-bright);
  margin: 0.5rem 0;
}

.ai-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.ai-block {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.ai-block-label {
  display: block;
  margin-bottom: 1rem;
}

.ai-block-label > span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.ai-block-label small {
  color: var(--text-muted);
  font-weight: normal;
}

.ai-block textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  resize: vertical;
  margin-bottom: 0.5rem;
}

.ai-block textarea[readonly] {
  opacity: 0.9;
  cursor: default;
}

.ai-block textarea:not([readonly]):focus {
  outline: none;
  border-color: var(--accent-green-bright);
  box-shadow: 0 0 0 2px var(--accent-green-glow);
}

.copy-btn {
  margin-top: 0.25rem;
}

.ai-loading {
  font-style: italic;
  color: var(--accent-green-bright);
  margin-top: 0.75rem;
  animation: pulseGlow 2s ease-in-out infinite;
}

.memory-list li.unreliable {
  color: var(--accent-red-bright);
}

.memory-list li .memory-original {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: line-through;
  opacity: 0.65;
  margin-top: 0.25rem;
}

.breakpoint-list li .breakpoint-detail {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
  font-style: italic;
}

.raw-path-details {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.raw-path-details summary {
  cursor: pointer;
  user-select: none;
  letter-spacing: 0.05em;
}

.raw-path-details summary:hover {
  color: var(--text-secondary);
}

.raw-path-list li {
  opacity: 0.55;
  font-size: 0.8rem;
}

.raw-path-list li::before {
  color: var(--text-muted);
}

.versions-block {
  margin: 1.25rem 0;
  text-align: left;
}

.versions-block h3,
.memory-block h3 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.memory-block {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  text-align: left;
}

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

.version-card {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-gold-bright);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.version-card.observer-science { border-left-color: var(--accent-green-bright); }
.version-card.observer-witness { border-left-color: var(--accent-gold-bright); }
.version-card.observer-archive { border-left-color: #8b7355; }
.version-card.observer-unknown { border-left-color: var(--accent-red-bright); }

.version-observer {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--accent-gold-bright);
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.version-description {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text-primary);
}

/* ===== Segmented archive document ===== */
.archive-doc-header {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.archive-doc-header small {
  color: var(--text-muted);
  font-weight: normal;
}

.archive-doc {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.archive-section-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-gold-bright);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  transition: border-color var(--transition);
}

.archive-section-card:focus-within {
  border-left-color: var(--accent-green-bright);
  box-shadow: 0 0 12px var(--accent-green-glow);
}

.archive-section-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent-gold-bright);
  letter-spacing: 0.12em;
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.archive-section-num {
  font-size: 0.7rem;
  color: var(--accent-green-bright);
  border: 1px solid var(--accent-green-bright);
  width: 1.4rem;
  height: 1.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}

.archive-section-input {
  width: 100%;
  min-height: 4.5rem;
  padding: 0.65rem 0.75rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.75;
  resize: vertical;
}

.archive-section-input:focus {
  outline: none;
  border-color: var(--accent-green-bright);
}

.archive-section-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
  opacity: 0.7;
}

/* ===== Utilities ===== */
.hidden { display: none !important; }

.view { display: none; }
.view.active { display: block; }

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .brand h1 { font-size: 1.2rem; }
  .action-bar { flex-direction: column; }
  .action-bar .btn { flex: none; width: 100%; }
  .result-text { font-size: 1.2rem; }
  .history-item { flex-direction: column; align-items: flex-start; gap: 0.35rem; }
  .history-item-main { width: 100%; }
  .history-item-meta { margin-left: 0; text-align: left; align-self: flex-end; }
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}