/* charchat testbed — mobile-first, dark-mode aware via prefers-color-scheme.
   The page itself must never scroll horizontally; <pre> panes inside the
   debug drawer get their own horizontal scroll. */

:root {
  --bg: #f7f6f3;
  --bg-elevated: #ffffff;
  --border: #ddd8d0;
  --text: #1c1a17;
  --text-muted: #6b675f;
  --accent: #a15c2b;
  --accent-contrast: #ffffff;
  --bubble-user: #dfe9ff;
  --bubble-assistant: #ffffff;
  --bubble-muted: #ece9e3;
  --danger: #b3261e;
  --ok: #2f7a3d;
  --warn: #a15c2b;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  --radius: 10px;
  --nsfw: #b3261e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171512;
    --bg-elevated: #221f1b;
    --border: #3a352d;
    --text: #ece8e1;
    --text-muted: #a39d90;
    --accent: #e0a370;
    --accent-contrast: #171512;
    --bubble-user: #223354;
    --bubble-assistant: #262320;
    --bubble-muted: #2c2823;
    --danger: #ff6b60;
    --ok: #6fd684;
    --warn: #e0a370;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  overflow-x: hidden;
}

button {
  font: inherit;
  cursor: pointer;
}

input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12.5px;
  overflow-x: auto;
  max-width: 100%;
}

/* ------------------------------------------------------------------ */
/* Login page                                                          */
/* ------------------------------------------------------------------ */

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
}

.login-card h1 {
  font-size: 1.25rem;
  margin: 0 0 20px;
}

.login-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login-card button[type="submit"] {
  background: var(--accent);
  color: var(--accent-contrast);
  border: none;
  border-radius: 8px;
  padding: 10px;
  font-weight: 600;
}

.login-error {
  color: var(--danger);
  font-size: 0.85rem;
  min-height: 1.2em;
}

/* ------------------------------------------------------------------ */
/* App shell                                                           */
/* ------------------------------------------------------------------ */

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

[hidden] {
  display: none !important;
}

/* ------------------------------------------------------------------ */
/* Picker                                                              */
/* ------------------------------------------------------------------ */

#view-picker {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.picker-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.picker-tab {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--text-muted);
}

.picker-tab.active {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

.companion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.companion-card {
  text-align: left;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.companion-card .card-title {
  font-weight: 700;
  font-size: 1.02rem;
}

.companion-card .card-charname {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.rank-badge {
  background: var(--bubble-muted);
  border-radius: 6px;
  padding: 2px 6px;
}

.nsfw-badge {
  background: var(--nsfw);
  color: #fff;
  border-radius: 6px;
  padding: 2px 6px;
  font-weight: 600;
}

.lang-chips {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.lang-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 7px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ------------------------------------------------------------------ */
/* Modal (session sheet)                                               */
/* ------------------------------------------------------------------ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 50;
}

@media (min-width: 640px) {
  .modal-backdrop {
    align-items: center;
  }
}

.modal-sheet {
  width: 100%;
  max-width: 480px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--bg-elevated);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

@media (min-width: 640px) {
  .modal-sheet {
    border-radius: var(--radius);
  }
}

.modal-sheet h2 {
  margin: 0;
  font-size: 1.1rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-row label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: -2px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 8px;
  padding: 9px 14px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
  font-weight: 600;
}

.btn-danger {
  color: var(--danger);
  border-color: var(--danger);
}

/* ------------------------------------------------------------------ */
/* Chat                                                                 */
/* ------------------------------------------------------------------ */

#chat-layout {
  flex: 1;
  display: flex;
  min-height: 0;
}

#view-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

#chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  flex-wrap: wrap;
}

#chat-header .chat-title-block {
  flex: 1;
  min-width: 0;
}

#chat-header .chat-title {
  font-weight: 700;
  font-size: 1rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#chat-header .chat-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

#chat-header .icon-btn {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 0.85rem;
  white-space: nowrap;
}

#chat-header .icon-btn.active {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

@media (max-width: 519px) {
  #chat-header {
    display: grid;
    grid-template-columns: auto 1fr auto auto auto auto auto;
    gap: 10px;
    padding: 10px 14px;
    align-items: center;
  }

  #chat-header > button:first-child {
    grid-column: 1;
    grid-row: 1;
  }

  #chat-header .chat-title-block {
    grid-column: 2 / -1;
    grid-row: 1;
    min-width: 0;
  }

  #chat-header .chat-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #chat-header .chat-subtitle {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #chat-header > button:nth-child(3) {
    grid-column: 3;
    grid-row: 2;
  }

  #chat-header > button:nth-child(4) {
    grid-column: 4;
    grid-row: 2;
  }

  #chat-header > button:nth-child(5) {
    grid-column: 5;
    grid-row: 2;
  }

  #chat-header > button:nth-child(6) {
    grid-column: 6;
    grid-row: 2;
  }

  #chat-header > button:nth-child(7) {
    grid-column: 7;
    grid-row: 2;
  }

  #chat-header .icon-btn {
    padding: 6px 10px;
    font-size: 0.9rem;
  }
}

#message-list {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  max-width: 80%;
  padding: 10px 12px;
  border-radius: 14px;
  line-height: 1.5;
  box-shadow: var(--shadow);
  white-space: pre-wrap;
  word-break: break-word;
}

.msg.user {
  align-self: flex-end;
  background: var(--bubble-user);
  border-bottom-right-radius: 4px;
}

.msg.assistant {
  align-self: flex-start;
  background: var(--bubble-assistant);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.msg.aborted,
.msg.error {
  opacity: 0.55;
  border-style: dashed;
}

.msg-status-label {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--danger);
  margin-bottom: 4px;
  font-weight: 600;
}

.msg-caption {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.msg-body {
  white-space: pre-wrap;
}

#suggestions-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 0 14px 8px;
}

#suggestion-chips {
  display: flex;
  gap: 8px;
  flex: 1;
  flex-wrap: wrap;
}

#suggestion-chips.regenerating {
  opacity: 0.5;
}

.suggestion-chip {
  background: var(--bubble-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.82rem;
  max-width: 100%;
  text-align: left;
}

#btn-regen-suggestions {
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

#btn-regen-suggestions:disabled {
  opacity: 0.45;
  cursor: default;
}

#status-line {
  padding: 0 14px 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
  min-height: 1.2em;
}

#status-line.error {
  color: var(--danger);
}

#composer {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}

#composer textarea {
  flex: 1;
  resize: none;
  min-height: 40px;
  max-height: 140px;
}

.composer-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: stretch;
}

.ooc-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.chronicle-banner {
  margin: 0 14px 8px;
  padding: 10px 12px;
  border: 1px solid var(--warn);
  border-radius: 8px;
  font-size: 0.82rem;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

/* ------------------------------------------------------------------ */
/* Debug drawer                                                        */
/* ------------------------------------------------------------------ */

#debug-drawer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 70vh;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-radius: 14px 14px 0 0;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  z-index: 40;
  min-width: 0;
}

@media (min-width: 900px) {
  #debug-drawer {
    position: static;
    height: auto;
    width: 420px;
    flex: 0 0 420px;
    border-radius: 0;
    border-top: none;
    border-left: 1px solid var(--border);
    box-shadow: none;
  }
}

.drawer-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.drawer-header select {
  flex: 1;
  min-width: 0;
}

.drawer-tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
}

.drawer-tab {
  padding: 8px 12px;
  border: none;
  background: none;
  color: var(--text-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}

.drawer-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.drawer-panel {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  min-width: 0;
}

.prompt-section {
  margin-bottom: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.prompt-section summary {
  padding: 8px 10px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.prompt-section summary .char-count {
  color: var(--text-muted);
  font-weight: 400;
}

.prompt-section pre {
  margin: 0;
  padding: 10px;
  border-top: 1px solid var(--border);
  max-height: 240px;
  overflow-y: auto;
}

.cache-boundary {
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin: -4px 0 10px;
}

#ledger-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

#ledger-table th,
#ledger-table td {
  text-align: left;
  padding: 6px 6px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  word-break: break-word;
}

#ledger-table tr.episode-end {
  background: rgba(111, 214, 132, 0.15);
}

#ledger-table td.ledger-missing {
  color: var(--danger);
  font-style: italic;
}

.calls-block {
  margin-bottom: 14px;
}

.calls-block h3 {
  font-size: 0.85rem;
  margin: 0 0 6px;
}

.kv-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  font-size: 0.82rem;
}

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

.kv-list dd {
  margin: 0;
}

/* ------------------------------------------------------------------ */
/* Picker topbar (feedback list link)                                  */
/* ------------------------------------------------------------------ */

.picker-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  row-gap: 8px;
}

.picker-topbar .picker-tabs {
  flex: 1 1 auto;
  margin-bottom: 0;
}

.picker-topbar .btn {
  white-space: nowrap;
  text-decoration: none;
  color: var(--text);
}

#picker-user {
  display: inline;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-right: 4px;
}

@media (max-width: 419px) {
  #picker-user {
    display: none;
  }
}

.import-form {
  display: flex;
  align-items: center;
  gap: 6px;
}

.import-form input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--bg-elevated);
  color: inherit;
  min-width: 220px;
}

.import-form input:disabled,
.import-form button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.import-error {
  font-size: 0.8rem;
  color: var(--danger);
}

.import-badge {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bubble-muted);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.import-remove {
  cursor: pointer;
  font-weight: 700;
  padding: 0 2px;
}

/* ------------------------------------------------------------------ */
/* Prompt editing (debug drawer "편집" tab)                            */
/* ------------------------------------------------------------------ */

.override-badge {
  font-size: 0.72rem;
  background: var(--warn);
  color: #fff;
  border-radius: 999px;
  padding: 3px 8px;
  white-space: nowrap;
}

.prompt-override-note {
  font-size: 0.8rem;
  color: var(--warn);
  margin: 0 0 10px;
}

.prompt-edit {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.prompt-edit-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.prompt-edit-toolbar select {
  flex: 1;
  min-width: 140px;
}

.prompt-edit-textarea {
  width: 100%;
  min-height: 40vh;
  font-family: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12.5px;
  resize: vertical;
}

.prompt-edit-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.prompt-edit-status {
  font-size: 0.8rem;
  color: var(--text-muted);
  min-height: 1.2em;
}

.prompt-edit-status.error {
  color: var(--danger);
}

.prompt-diff {
  font-family: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  max-height: 320px;
  overflow-y: auto;
}

.diff-line {
  padding: 1px 4px;
}

.diff-line.add {
  background: rgba(47, 122, 61, 0.15);
  color: var(--ok);
}

.diff-line.del {
  background: rgba(179, 38, 30, 0.12);
  color: var(--danger);
}

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

/* ------------------------------------------------------------------ */
/* Toast                                                               */
/* ------------------------------------------------------------------ */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 100;
}

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

/* ------------------------------------------------------------------ */
/* Feedback list page (public/feedback.html)                          */
/* ------------------------------------------------------------------ */

#feedback-page {
  padding: 16px;
  max-width: 1000px;
  margin: 0 auto;
}

#feedback-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  row-gap: 8px;
}

#feedback-header h1 {
  font-size: 1.1rem;
  margin: 0;
  flex: 0 0 auto;
}

#feedback-header .btn {
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
}

#feedback-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

#feedback-table th,
#feedback-table td {
  text-align: left;
  padding: 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.feedback-note-cell {
  max-width: 320px;
  white-space: pre-wrap;
  word-break: break-word;
}

.feedback-row {
  cursor: pointer;
}

.feedback-row:hover {
  background: var(--bubble-muted);
}

.feedback-detail {
  margin: 0;
  max-height: 420px;
  overflow: auto;
}

.feedback-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
}