:root {
  color-scheme: light;
  --bg-main: #ffe4e6;
  --bg-sidebar: #fff1f2;
  --accent: #9f1239;
  --accent-strong: #7c0e2e;
  --border: #fff;
  --line: #fecdd3;
  --field-border: #fda4af;
  --ink: #7f1d1d;
  --muted: #9f1239;
  --subtle: #be5d75;
  --danger: #e11d48;
  --surface: #fff;
  --shadow: 0 1px 3px rgba(159, 18, 57, 0.08);
  --dialog-shadow: 0 16px 40px rgba(159, 18, 57, 0.18);
  --radius: 5px;
  --control-radius: 4px;

  --bg: var(--bg-main);
  --panel: var(--bg-sidebar);
  --panel-edge: var(--border);
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg);
}

.app {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px 24px 16px;
  gap: 14px;
}

.status-toast {
  position: absolute;
  right: 24px;
  bottom: 18px;
  z-index: 9;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: min(420px, calc(100vw - 48px));
  padding: 8px 14px;
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  overflow-wrap: anywhere;
  box-shadow: var(--dialog-shadow);
  pointer-events: none;
}

.panes {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  min-height: 0;
}

.column {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  padding: 14px 16px 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.panel-title h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--accent);
}

.panel-title span {
  font-size: 12px;
  color: var(--muted);
}

.table {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 6px;
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  min-height: 180px;
}

.table-header,
.table-row {
  display: grid;
  grid-template-columns: 1.2fr 2fr 0.6fr 0.6fr 0.7fr;
  align-items: center;
  padding: 10px 12px;
  gap: 8px;
  font-size: 13px;
}

.table-header {
  background: var(--bg-main);
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 11px;
}

.table-body {
  overflow: auto;
}

.table-row {
  border-top: 1px solid var(--bg-main);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease;
}

.table-row > div {
  min-width: 0;
  overflow-wrap: anywhere;
}

.table-row:hover {
  background: var(--bg-main);
}

.table-row.selected {
  background: var(--line);
}

.checkbox {
  width: 18px;
  height: 18px;
  border-radius: var(--control-radius);
  border: 1px solid var(--accent);
  display: grid;
  place-items: center;
  background: var(--surface);
  color: var(--accent);
}

.checkbox.checked {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  font-weight: 700;
}

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

button {
  border: 1px solid var(--accent);
  border-radius: var(--control-radius);
  padding: 8px 14px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--panel);
  color: var(--accent);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
  -webkit-user-select: none;
  user-select: none;
}

button:hover {
  background: var(--accent);
  color: white;
}

button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

button.primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

button.secondary,
button.ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--field-border);
}

button.secondary:hover,
button.ghost:hover {
  background: var(--bg-main);
  color: var(--accent-strong);
  border-color: var(--accent);
}

button.danger {
  background: var(--panel);
  color: var(--danger);
  border-color: var(--danger);
}

button.danger:hover {
  background: var(--danger);
  color: white;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

textarea,
input,
select {
  border-radius: var(--control-radius);
  border: 1px solid var(--field-border);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  background: var(--surface);
  color: var(--ink);
}

textarea::placeholder,
input::placeholder {
  color: var(--subtle);
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.45;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(159, 18, 57, 0.2);
  border-color: var(--accent);
}

input[type="checkbox"],
select {
  accent-color: var(--accent);
}

.notes-area {
  flex: 1;
  min-height: 180px;
}

.rephrase-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 160px;
  overflow: hidden;
}

.rephrase-list {
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rephrase-item {
  padding: 8px 10px;
  border-radius: var(--control-radius);
  border: 1px solid var(--line);
  font-size: 12px;
  cursor: pointer;
  background: var(--surface);
}

.rephrase-item:hover,
.rephrase-item.active {
  background: var(--bg-main);
  border-color: var(--field-border);
}

.concept-meta {
  display: grid;
  gap: 8px;
}

.concept-editor {
  flex: 1;
  min-height: 240px;
}

.markdown-preview {
  flex: 1;
  min-height: 314px;
  padding: 16px 18px;
  overflow: auto;
  border: 1px solid var(--field-border);
  border-radius: var(--control-radius);
  background: var(--surface);
  box-shadow: inset 0 1px 2px rgba(159, 18, 57, 0.04);
}

.markdown-preview:focus {
  outline: 2px solid rgba(159, 18, 57, 0.2);
  border-color: var(--accent);
}

.markdown-preview__empty {
  color: var(--subtle);
}

.image-prompt {
  min-height: 110px;
  background: var(--surface);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(69, 10, 10, 0.28);
  z-index: 10;
}

.settings-window {
  width: min(560px, 92vw);
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--dialog-shadow);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.settings-header h3 {
  margin: 0;
  font-size: 18px;
  color: var(--accent);
}

.settings-grid {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  align-items: center;
  gap: 12px 14px;
}

.settings-grid label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.settings-grid input,
.settings-grid select {
  width: 100%;
  min-width: 0;
}

@media (max-width: 1100px) {
  .panes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .table-header,
  .table-row {
    grid-template-columns: 1.2fr 1.8fr 0.6fr 0.6fr 0.6fr;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }
}