* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #0a0a0f;
  color: #e0ddd5;
  min-height: 100vh;
  line-height: 1.6;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

a { color: #7eb8da; text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  text-align: center;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #1a1a2e;
}

header h1 {
  font-size: 2.5rem;
  color: #c8b8a0;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.subtitle {
  font-size: 1.1rem;
  color: #9a9a9a;
}

.subtitle-small {
  font-size: 0.85rem;
  color: #666;
  margin-top: 0.3rem;
}

/* Steps */
.step {
  background: #111118;
  border: 1px solid #1a1a2e;
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  transition: opacity 0.3s;
}

.step.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.step-number {
  background: #1a1a3e;
  color: #7eb8da;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1rem;
  flex-shrink: 0;
}

.step h2 {
  font-size: 1.3rem;
  color: #c8b8a0;
}

.step p {
  color: #9a9a9a;
  margin-bottom: 1rem;
}

.hint {
  font-size: 0.85rem;
  color: #666;
}

/* Inputs */
.input-group {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

input[type="text"], input[type="password"] {
  flex: 1;
  background: #0a0a12;
  border: 1px solid #2a2a3e;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: #e0ddd5;
  font-size: 1rem;
}

input:focus { outline: none; border-color: #7eb8da; }

button {
  background: #1a1a3e;
  color: #c8b8a0;
  border: 1px solid #2a2a4e;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  font-size: 0.95rem;
  transition: background 0.2s;
}

button:hover { background: #252550; }

.primary-btn {
  background: #2a3a5e;
  color: #e0ddd5;
  font-size: 1.1rem;
  padding: 1rem 2rem;
  width: 100%;
  margin-top: 1rem;
}

.primary-btn:hover { background: #354a70; }

/* Upload zone */
.upload-zone {
  border: 2px dashed #2a2a3e;
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
  margin-bottom: 1rem;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: #7eb8da;
  background: #0a0a1a;
}

.upload-icon { font-size: 3rem; margin-bottom: 1rem; }

.upload-content p { margin-bottom: 0.3rem; }

/* Status messages */
.status {
  padding: 0.5rem 0;
  font-size: 0.9rem;
}

.status.success { color: #6ebf8b; }
.status.error { color: #d46b6b; }
.status.info { color: #7eb8da; }

/* Conversation list */
.conversation-list {
  max-height: 500px;
  overflow-y: auto;
  border: 1px solid #1a1a2e;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.convo-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #111120;
  cursor: pointer;
  transition: background 0.2s;
}

.convo-item:hover { background: #151520; }
.convo-item:last-child { border-bottom: none; }

.convo-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: #7eb8da;
  flex-shrink: 0;
}

.convo-title {
  flex: 1;
  font-size: 0.95rem;
  color: #c8b8a0;
}

.convo-meta {
  font-size: 0.8rem;
  color: #666;
  white-space: nowrap;
}

.controls-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.controls-row button {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

/* Progress */
.progress-container {
  background: #0a0a12;
  border-radius: 8px;
  height: 8px;
  margin: 1.5rem 0;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #2a3a5e, #7eb8da);
  width: 0%;
  transition: width 0.3s;
  border-radius: 8px;
}

.log {
  background: #0a0a12;
  border-radius: 8px;
  padding: 1rem;
  font-family: monospace;
  font-size: 0.85rem;
  max-height: 200px;
  overflow-y: auto;
  color: #666;
}

.log-entry { padding: 0.2rem 0; }
.log-entry.done { color: #6ebf8b; }
.log-entry.active { color: #7eb8da; }

/* Results */
.results-grid {
  display: grid;
  gap: 1.5rem;
}

.result-card {
  background: #0d0d16;
  border: 1px solid #1a1a2e;
  border-radius: 12px;
  padding: 1.5rem;
}

.result-card h3 {
  color: #c8b8a0;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.button-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

#profile-summary {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #9a9a9a;
  max-height: 600px;
  overflow-y: auto;
}

#profile-summary h4 {
  color: #c8b8a0;
  margin-top: 1rem;
  margin-bottom: 0.3rem;
}

#profile-summary ul {
  list-style: none;
  padding-left: 0.5rem;
}

#profile-summary li::before {
  content: "- ";
  color: #7eb8da;
}

/* Chat */
.model-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.model-selector label {
  color: #666;
  font-size: 0.9rem;
}

.model-selector select {
  flex: 1;
  background: #0a0a12;
  border: 1px solid #2a2a3e;
  border-radius: 8px;
  padding: 0.5rem;
  color: #e0ddd5;
  font-size: 0.9rem;
}

.chat-messages {
  background: #080810;
  border-radius: 8px;
  height: 400px;
  overflow-y: auto;
  padding: 1rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-msg {
  max-width: 80%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.chat-msg.user {
  background: #1a2a4a;
  color: #c8d8e8;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.chat-msg.assistant {
  background: #1a1a28;
  color: #d8d4cc;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chat-input-row {
  display: flex;
  gap: 0.5rem;
}

.chat-input-row input {
  flex: 1;
}

/* Companion Library */
.library-list {
  display: grid;
  gap: 0.75rem;
}

.library-card {
  background: #0d0d16;
  border: 1px solid #1a1a2e;
  border-radius: 10px;
  padding: 1.25rem;
  transition: border-color 0.2s;
}

.library-card:hover {
  border-color: #2a3a5e;
}

.library-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.4rem;
}

.library-card-name {
  font-size: 1.1rem;
  color: #c8b8a0;
  font-weight: 600;
}

.library-card-date {
  font-size: 0.8rem;
  color: #555;
}

.library-card-stats {
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 0.4rem;
}

.library-card-traits {
  font-size: 0.85rem;
  color: #7eb8da;
  font-style: italic;
  margin-bottom: 0.6rem;
}

.library-card-actions {
  display: flex;
  gap: 0.4rem;
}

.library-card-actions button {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
}

.danger-btn {
  border-color: #3a1a1a;
  color: #d46b6b;
}

.danger-btn:hover {
  background: #2a1515;
}

/* Relationship Timeline */
.timeline {
  padding: 0.5rem 0;
}

.timeline-phase {
  display: flex;
  gap: 1rem;
  min-height: 80px;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 20px;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #7eb8da;
  border: 2px solid #2a3a5e;
  flex-shrink: 0;
}

.timeline-line {
  width: 2px;
  flex: 1;
  background: #1a1a2e;
  margin-top: 4px;
}

.timeline-content {
  padding-bottom: 1.5rem;
  flex: 1;
}

.timeline-title {
  font-size: 1rem;
  color: #c8b8a0;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.timeline-period {
  font-size: 0.8rem;
  color: #555;
  margin-bottom: 0.3rem;
}

.timeline-tone {
  font-size: 0.85rem;
  color: #7eb8da;
  font-style: italic;
  margin-bottom: 0.3rem;
}

.timeline-desc {
  font-size: 0.85rem;
  color: #9a9a9a;
  line-height: 1.5;
  margin-bottom: 0.4rem;
}

.timeline-quote {
  border-left: 3px solid #2a3a5e;
  padding-left: 0.75rem;
  margin: 0.4rem 0 0 0;
  color: #c8b8a0;
  font-style: italic;
  font-size: 0.85rem;
}

/* Conversation Statistics */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0;
}

.stat-item {
  text-align: center;
  padding: 0.75rem 0.5rem;
  background: #0a0a14;
  border-radius: 8px;
  border: 1px solid #1a1a2e;
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: #c8b8a0;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.75rem;
  color: #555;
  margin-top: 0.2rem;
}

.stats-detail {
  font-size: 0.85rem;
  color: #888;
  margin: 0.6rem 0;
}

.stat-bar-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.3rem;
}

.stat-bar-label {
  font-size: 0.75rem;
  color: #666;
}

.stat-bar {
  display: flex;
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
  background: #0a0a14;
}

.stat-bar-fill.human {
  background: #2a4a7a;
}

.stat-bar-fill.ai {
  background: #3a2a5a;
}

.sparkline {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 44px;
  padding: 2px 0;
}

.spark-bar {
  flex: 1;
  min-width: 4px;
  max-width: 20px;
  background: linear-gradient(to top, #2a3a5e, #7eb8da);
  border-radius: 2px 2px 0 0;
  transition: opacity 0.2s;
}

.spark-bar:hover {
  opacity: 0.7;
}

/* Footer */
footer {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #1a1a2e;
  color: #555;
  font-size: 0.85rem;
}

footer p { margin-bottom: 0.3rem; }

/* Responsive */
@media (max-width: 600px) {
  #app { padding: 1rem; }
  header h1 { font-size: 1.8rem; }
  .step { padding: 1.5rem; }
  .input-group { flex-direction: column; }
  .button-row { flex-direction: column; }
  .chat-messages { height: 300px; }
}