initial commit

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diff --git a/src/styles/globals.css b/src/styles/globals.css
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+/* ── Reset ───────────────────────────────────────────────────────────────── */
+
+*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+html { font-size: 14px; }
+
+/* ── Tokens ──────────────────────────────────────────────────────────────── */
+
+:root {
+  --bg:          #0d0d0d;
+  --bg-1:        #111111;
+  --bg-2:        #161616;
+  --bg-3:        #1c1c1c;
+  --bg-4:        #222222;
+
+  --border:      #242424;
+  --border-2:    #1a1a1a;
+  --border-3:    #2e2e2e;
+
+  --text:        #dedede;
+  --text-2:      #999999;
+  --text-3:      #555555;
+  --text-4:      #333333;
+
+  --accent:      #c9a96e;
+  --accent-dim:  #7a6341;
+
+  --success:     #4a9470;
+  --danger:      #8a3030;
+
+  --font-sans:   ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
+  --font-mono:   ui-monospace, 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Menlo, monospace;
+
+  --r:           4px;
+  --r-lg:        6px;
+  --header-h:    44px;
+  --panel-w:     360px;
+}
+
+/* ── Base ────────────────────────────────────────────────────────────────── */
+
+body {
+  background: var(--bg);
+  color: var(--text);
+  font-family: var(--font-sans);
+  font-size: 13px;
+  line-height: 1.5;
+  -webkit-font-smoothing: antialiased;
+  overflow: hidden;
+  height: 100vh;
+}
+
+#root { height: 100vh; display: flex; flex-direction: column; }
+
+/* ── App Header ──────────────────────────────────────────────────────────── */
+
+.app-header {
+  height: var(--header-h);
+  min-height: var(--header-h);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 16px;
+  border-bottom: 1px solid var(--border);
+  background: var(--bg-1);
+  flex-shrink: 0;
+  gap: 12px;
+}
+
+.app-header-left {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  min-width: 0;
+}
+
+.app-wordmark {
+  font-size: 12px;
+  font-weight: 600;
+  letter-spacing: 0.05em;
+  color: var(--text);
+  text-transform: uppercase;
+  flex-shrink: 0;
+}
+
+.app-wordmark span {
+  color: var(--text-3);
+  font-weight: 400;
+}
+
+.app-project-name {
+  font-size: 12px;
+  color: var(--text-3);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.app-project-name::before {
+  content: '/ ';
+  color: var(--text-4);
+}
+
+.app-header-right {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  flex-shrink: 0;
+}
+
+/* ── Package Switcher ────────────────────────────────────────────────────── */
+
+.pkg-switcher {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  overflow-x: auto;
+  scrollbar-width: none;
+  max-width: 480px;
+}
+
+.pkg-switcher::-webkit-scrollbar { display: none; }
+
+.pkg-tab {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 0 8px;
+  height: 26px;
+  border-radius: var(--r);
+  border: 1px solid transparent;
+  font-size: 12px;
+  color: var(--text-3);
+  cursor: pointer;
+  white-space: nowrap;
+  user-select: none;
+  transition: all 0.1s;
+  flex-shrink: 0;
+}
+
+.pkg-tab:hover {
+  background: var(--bg-3);
+  color: var(--text-2);
+}
+
+.pkg-tab.active {
+  background: var(--bg-3);
+  border-color: var(--border);
+  color: var(--text);
+}
+
+.pkg-tab-name {
+  max-width: 120px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.pkg-tab-input {
+  width: 100px;
+  background: transparent;
+  border: none;
+  outline: none;
+  font-size: 12px;
+  font-family: inherit;
+  color: var(--text);
+  padding: 0;
+}
+
+.pkg-tab-actions {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  margin-left: 2px;
+  opacity: 0;
+  transition: opacity 0.1s;
+}
+
+.pkg-tab:hover .pkg-tab-actions,
+.pkg-tab.active .pkg-tab-actions {
+  opacity: 1;
+}
+
+.pkg-tab-close, .pkg-tab-menu-btn {
+  background: none;
+  border: none;
+  color: var(--text-4);
+  cursor: pointer;
+  font-size: 12px;
+  padding: 0 2px;
+  line-height: 1;
+  display: flex;
+  align-items: center;
+  border-radius: 2px;
+  height: 16px;
+}
+
+.pkg-tab-close:hover, .pkg-tab-menu-btn:hover {
+  background: var(--bg-4);
+  color: var(--text-2);
+}
+
+.pkg-tab-menu-btn {
+  letter-spacing: -1px;
+  font-size: 10px;
+}
+
+.pkg-tab-dropdown {
+  background: var(--bg-3);
+  border: 1px solid var(--border-3);
+  border-radius: var(--r-lg);
+  padding: 4px;
+  z-index: 100;
+  min-width: 120px;
+  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
+}
+
+.pkg-tab-dropdown button {
+  display: block;
+  width: 100%;
+  text-align: left;
+  background: none;
+  border: none;
+  color: var(--text-2);
+  font-size: 12px;
+  font-family: inherit;
+  padding: 5px 8px;
+  border-radius: var(--r);
+  cursor: pointer;
+}
+
+.pkg-tab-dropdown button:hover {
+  background: var(--bg-4);
+  color: var(--text);
+}
+
+.pkg-tab-dropdown button.danger { color: #c04040; }
+.pkg-tab-dropdown button.danger:hover { background: rgba(192,64,64,0.15); }
+
+.pkg-new-btn {
+  width: 26px;
+  height: 26px;
+  border-radius: var(--r);
+  border: 1px dashed var(--border-3);
+  background: none;
+  color: var(--text-4);
+  font-size: 16px;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  flex-shrink: 0;
+  transition: all 0.1s;
+}
+
+.pkg-new-btn:hover {
+  border-color: var(--text-3);
+  color: var(--text-2);
+  background: var(--bg-3);
+}
+
+/* ── App Shell ───────────────────────────────────────────────────────────── */
+
+.app-shell {
+  display: flex;
+  flex: 1;
+  min-height: 0;
+  overflow: hidden;
+}
+
+/* ── Input Panel ─────────────────────────────────────────────────────────── */
+
+.input-panel {
+  width: var(--panel-w);
+  min-width: var(--panel-w);
+  border-right: 1px solid var(--border);
+  display: flex;
+  flex-direction: column;
+  overflow-y: auto;
+  background: var(--bg-1);
+}
+
+.input-panel::-webkit-scrollbar { width: 4px; }
+.input-panel::-webkit-scrollbar-track { background: transparent; }
+.input-panel::-webkit-scrollbar-thumb { background: var(--border-3); border-radius: 2px; }
+
+.input-section {
+  padding: 16px;
+  border-bottom: 1px solid var(--border-2);
+}
+
+.input-section:last-of-type { border-bottom: none; }
+
+.input-section-label {
+  font-size: 10px;
+  font-weight: 600;
+  letter-spacing: 0.1em;
+  text-transform: uppercase;
+  color: var(--text-3);
+  margin-bottom: 12px;
+}
+
+/* ── Form Fields ─────────────────────────────────────────────────────────── */
+
+.field {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+  margin-bottom: 10px;
+}
+
+.field:last-child { margin-bottom: 0; }
+
+.field-label {
+  font-size: 11px;
+  color: var(--text-2);
+  font-weight: 500;
+}
+
+.field-input,
+.field-textarea {
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: var(--r);
+  color: var(--text);
+  font-family: var(--font-sans);
+  font-size: 13px;
+  padding: 7px 10px;
+  width: 100%;
+  transition: border-color 0.1s;
+  outline: none;
+}
+
+.field-input::placeholder,
+.field-textarea::placeholder {
+  color: var(--text-4);
+}
+
+.field-input:focus,
+.field-textarea:focus {
+  border-color: var(--border-3);
+}
+
+.field-textarea {
+  resize: vertical;
+  min-height: 72px;
+  line-height: 1.5;
+}
+
+/* ── Token Input ─────────────────────────────────────────────────────────── */
+
+.token-field {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}
+
+.token-container {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 5px;
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: var(--r);
+  padding: 6px;
+  min-height: 36px;
+  cursor: text;
+  transition: border-color 0.1s;
+}
+
+.token-container:focus-within {
+  border-color: var(--border-3);
+}
+
+.token {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  background: var(--bg-3);
+  border: 1px solid var(--border);
+  border-radius: 3px;
+  padding: 2px 7px 2px 8px;
+  font-size: 12px;
+  color: var(--text-2);
+  line-height: 1;
+  height: 22px;
+}
+
+.token-remove {
+  background: none;
+  border: none;
+  color: var(--text-3);
+  cursor: pointer;
+  font-size: 14px;
+  line-height: 1;
+  padding: 0;
+  display: flex;
+  align-items: center;
+  margin-left: 1px;
+  opacity: 0.7;
+}
+
+.token-remove:hover { color: var(--text); opacity: 1; }
+
+.token-input {
+  background: none;
+  border: none;
+  color: var(--text);
+  font-family: var(--font-sans);
+  font-size: 12px;
+  outline: none;
+  min-width: 80px;
+  flex: 1;
+  padding: 2px 2px;
+}
+
+.token-input::placeholder { color: var(--text-4); }
+
+.token-suggestions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 4px;
+  margin-top: 6px;
+}
+
+.token-suggestion {
+  background: none;
+  border: 1px solid var(--border);
+  border-radius: 3px;
+  color: var(--text-3);
+  cursor: pointer;
+  font-family: var(--font-sans);
+  font-size: 11px;
+  padding: 2px 7px;
+  transition: all 0.1s;
+}
+
+.token-suggestion:hover {
+  border-color: var(--border-3);
+  color: var(--text-2);
+}
+
+.token-suggestion.active {
+  background: var(--bg-3);
+  border-color: var(--border-3);
+  color: var(--text);
+}
+
+/* ── Generate Button ─────────────────────────────────────────────────────── */
+
+.generate-area {
+  padding: 12px 16px 16px;
+}
+
+.btn-generate {
+  width: 100%;
+  background: var(--text);
+  border: none;
+  border-radius: var(--r);
+  color: var(--bg);
+  cursor: pointer;
+  font-family: var(--font-sans);
+  font-size: 13px;
+  font-weight: 600;
+  height: 36px;
+  letter-spacing: 0.01em;
+  transition: opacity 0.1s, background 0.1s;
+}
+
+.btn-generate:hover:not(:disabled) {
+  opacity: 0.9;
+}
+
+.btn-generate:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.btn-generate.generating {
+  background: var(--bg-3);
+  color: var(--text-2);
+}
+
+/* ── Shared Buttons ──────────────────────────────────────────────────────── */
+
+.btn {
+  align-items: center;
+  background: var(--bg-3);
+  border: 1px solid var(--border);
+  border-radius: var(--r);
+  color: var(--text-2);
+  cursor: pointer;
+  display: inline-flex;
+  font-family: var(--font-sans);
+  font-size: 12px;
+  gap: 5px;
+  height: 28px;
+  padding: 0 10px;
+  transition: all 0.1s;
+  white-space: nowrap;
+}
+
+.btn:hover {
+  border-color: var(--border-3);
+  color: var(--text);
+}
+
+.btn-ghost {
+  background: none;
+  border-color: transparent;
+  color: var(--text-3);
+}
+
+.btn-ghost:hover {
+  background: var(--bg-3);
+  border-color: var(--border);
+  color: var(--text-2);
+}
+
+.btn-icon {
+  padding: 0;
+  width: 28px;
+  justify-content: center;
+}
+
+/* ── Preview Panel ───────────────────────────────────────────────────────── */
+
+.preview-panel {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  background: var(--bg);
+}
+
+.preview-toolbar {
+  height: 40px;
+  min-height: 40px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 20px;
+  border-bottom: 1px solid var(--border-2);
+  background: var(--bg);
+  flex-shrink: 0;
+  gap: 12px;
+}
+
+.preview-toolbar-left {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.preview-toolbar-right {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.preview-doc-label {
+  font-size: 11px;
+  color: var(--text-3);
+  font-weight: 500;
+}
+
+.preview-scroll {
+  flex: 1;
+  overflow-y: auto;
+  padding: 40px 48px 80px;
+}
+
+.preview-scroll::-webkit-scrollbar { width: 6px; }
+.preview-scroll::-webkit-scrollbar-track { background: transparent; }
+.preview-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
+
+/* ── Empty State ─────────────────────────────────────────────────────────── */
+
+.empty-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  gap: 8px;
+  color: var(--text-4);
+}
+
+.empty-state-title {
+  font-size: 14px;
+  color: var(--text-3);
+  font-weight: 500;
+}
+
+.empty-state-sub {
+  font-size: 12px;
+  color: var(--text-4);
+}
+
+/* ── Brand Document ──────────────────────────────────────────────────────── */
+
+.brand-doc {
+  max-width: 720px;
+}
+
+.brand-doc-header {
+  margin-bottom: 40px;
+  padding-bottom: 24px;
+  border-bottom: 1px solid var(--border-2);
+}
+
+.brand-doc-title {
+  font-size: 28px;
+  font-weight: 600;
+  letter-spacing: -0.02em;
+  color: var(--text);
+  line-height: 1.2;
+  margin-bottom: 6px;
+}
+
+.brand-doc-meta {
+  font-size: 11px;
+  color: var(--text-3);
+  display: flex;
+  gap: 12px;
+}
+
+.brand-doc-meta-item {
+  display: flex;
+  gap: 5px;
+}
+
+.brand-doc-meta-label {
+  color: var(--text-4);
+}
+
+/* ── Doc Section ─────────────────────────────────────────────────────────── */
+
+.doc-section {
+  margin-bottom: 36px;
+  border-radius: var(--r);
+  padding: 2px;
+  margin: -2px -2px 36px;
+}
+
+.doc-section.is-locked {
+  background: rgba(201, 169, 110, 0.025);
+}
+
+.doc-section-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 14px;
+  gap: 8px;
+}
+
+.doc-section-title {
+  font-size: 10px;
+  font-weight: 600;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--text-3);
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.section-lock {
+  background: none;
+  border: 1px solid transparent;
+  border-radius: 3px;
+  color: var(--text-4);
+  cursor: pointer;
+  font-family: var(--font-sans);
+  font-size: 10px;
+  letter-spacing: 0.04em;
+  padding: 2px 6px;
+  height: 20px;
+  display: inline-flex;
+  align-items: center;
+  transition: all 0.1s;
+  line-height: 1;
+  white-space: nowrap;
+}
+
+.section-lock:hover {
+  border-color: var(--border);
+  color: var(--text-3);
+  background: var(--bg-3);
+}
+
+.section-lock.locked {
+  color: var(--accent);
+  border-color: var(--accent-dim);
+  background: rgba(201, 169, 110, 0.06);
+}
+
+.doc-section-actions {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  opacity: 0;
+  transition: opacity 0.15s;
+}
+
+.doc-section:hover .doc-section-actions { opacity: 1; }
+.doc-section .doc-section-actions:has(.section-lock.locked) { opacity: 1; }
+
+.doc-section-body {
+  border-left: 1px solid var(--border);
+  padding-left: 16px;
+}
+
+.doc-section.is-locked .doc-section-body {
+  border-left-color: var(--accent-dim);
+  border-left-width: 2px;
+}
+
+/* ── Editable Text ───────────────────────────────────────────────────────── */
+
+.editable-text {
+  cursor: text;
+  border-radius: 3px;
+  transition: background 0.1s, outline 0.1s;
+  line-height: 1.65;
+  font-size: 14px;
+  color: var(--text);
+  min-height: 1em;
+  outline: 1px solid transparent;
+}
+
+.editable-text:hover {
+  background: var(--bg-2);
+  outline-color: var(--border-2);
+}
+
+.editable-text.editing {
+  background: var(--bg-2);
+  outline: 1px solid var(--border-3);
+  border-radius: 3px;
+}
+
+/* ── Numbered List ───────────────────────────────────────────────────────── */
+
+.numbered-list {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.numbered-item {
+  display: flex;
+  gap: 10px;
+  align-items: flex-start;
+}
+
+.numbered-item-num {
+  font-size: 11px;
+  color: var(--text-4);
+  font-family: var(--font-mono);
+  min-width: 16px;
+  margin-top: 2px;
+  flex-shrink: 0;
+}
+
+.numbered-item-text {
+  flex: 1;
+  font-size: 14px;
+  color: var(--text);
+  line-height: 1.5;
+  cursor: text;
+  border-radius: 3px;
+  padding: 1px 4px;
+  margin: -1px -4px;
+  transition: background 0.1s;
+}
+
+.numbered-item-text:hover { background: var(--bg-2); }
+.numbered-item-text:focus { background: var(--bg-2); outline: 1px solid var(--border-3); }
+
+/* ── Bullet List ─────────────────────────────────────────────────────────── */
+
+.bullet-list {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.bullet-item {
+  display: flex;
+  gap: 8px;
+  align-items: flex-start;
+  font-size: 13px;
+  color: var(--text-2);
+  line-height: 1.5;
+}
+
+.bullet-item::before {
+  content: '–';
+  color: var(--text-4);
+  flex-shrink: 0;
+  margin-top: 0;
+}
+
+/* ── Tone Section ────────────────────────────────────────────────────────── */
+
+.tone-grid {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.tone-row {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.tone-row-label {
+  font-size: 11px;
+  color: var(--text-3);
+  font-weight: 500;
+}
+
+.tone-row-value {
+  font-size: 13px;
+  color: var(--text-2);
+  line-height: 1.55;
+}
+
+.tone-tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 5px;
+}
+
+.tone-tag {
+  background: var(--bg-3);
+  border: 1px solid var(--border);
+  border-radius: 3px;
+  color: var(--text-2);
+  font-size: 11px;
+  padding: 2px 8px;
+}
+
+.tone-phrases {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}
+
+.tone-phrase {
+  font-family: var(--font-mono);
+  font-size: 12px;
+  color: var(--text-2);
+  padding: 5px 8px;
+  background: var(--bg-2);
+  border-radius: 3px;
+  border-left: 2px solid var(--border-3);
+}
+
+/* ── Visual Directions ───────────────────────────────────────────────────── */
+
+.directions-grid {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+}
+
+.direction-card {
+  border: 1px solid var(--border);
+  border-radius: var(--r-lg);
+  padding: 16px;
+  background: var(--bg-1);
+}
+
+.direction-name {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--text);
+  margin-bottom: 8px;
+}
+
+.direction-desc {
+  font-size: 13px;
+  color: var(--text-2);
+  line-height: 1.6;
+  margin-bottom: 12px;
+}
+
+.direction-attrs {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.direction-attr {
+  display: flex;
+  gap: 8px;
+  font-size: 12px;
+  line-height: 1.5;
+}
+
+.direction-attr-label {
+  color: var(--text-4);
+  font-weight: 500;
+  min-width: 88px;
+  flex-shrink: 0;
+}
+
+.direction-attr-value {
+  color: var(--text-2);
+}
+
+/* ── Logo Concepts ───────────────────────────────────────────────────────── */
+
+.logo-grid {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+}
+
+.logo-card {
+  border: 1px solid var(--border);
+  border-radius: var(--r-lg);
+  padding: 16px;
+  background: var(--bg-1);
+}
+
+.logo-card-title {
+  font-size: 13px;
+  font-weight: 600;
+  color: var(--text);
+  margin-bottom: 8px;
+}
+
+.logo-card-concept {
+  font-size: 13px;
+  color: var(--text-2);
+  line-height: 1.6;
+  margin-bottom: 12px;
+}
+
+.logo-card-attrs {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.logo-card-attr {
+  display: flex;
+  gap: 8px;
+  font-size: 12px;
+  line-height: 1.5;
+}
+
+.logo-card-attr-label {
+  color: var(--text-4);
+  font-weight: 500;
+  min-width: 72px;
+  flex-shrink: 0;
+}
+
+.logo-card-attr-value {
+  color: var(--text-2);
+}
+
+/* ── Usage Examples ──────────────────────────────────────────────────────── */
+
+.usage-grid {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.usage-item {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.usage-context {
+  font-size: 10px;
+  font-weight: 600;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--text-4);
+}
+
+.usage-text {
+  font-family: var(--font-mono);
+  font-size: 12px;
+  color: var(--text-2);
+  background: var(--bg-2);
+  border: 1px solid var(--border-2);
+  border-radius: var(--r);
+  padding: 10px 12px;
+  white-space: pre-wrap;
+  line-height: 1.6;
+  position: relative;
+}
+
+.usage-copy {
+  position: absolute;
+  top: 6px;
+  right: 6px;
+  opacity: 0;
+  transition: opacity 0.1s;
+}
+
+.usage-item:hover .usage-copy { opacity: 1; }
+
+/* ── Typography Section ──────────────────────────────────────────────────── */
+
+.type-section {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+}
+
+.type-fonts {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.type-font-row {
+  display: flex;
+  align-items: baseline;
+  gap: 10px;
+  font-size: 13px;
+}
+
+.type-font-role {
+  font-size: 11px;
+  color: var(--text-4);
+  font-weight: 500;
+  min-width: 80px;
+  flex-shrink: 0;
+}
+
+.type-font-name {
+  color: var(--text);
+  font-weight: 500;
+}
+
+.type-pair-note {
+  font-size: 12px;
+  color: var(--text-3);
+  margin-top: 4px;
+}
+
+.type-scale {
+  display: flex;
+  flex-direction: column;
+}
+
+.type-scale-header {
+  display: grid;
+  grid-template-columns: 90px 52px 56px 1fr;
+  gap: 0 12px;
+  font-size: 10px;
+  font-weight: 600;
+  color: var(--text-4);
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  padding: 0 0 6px;
+  border-bottom: 1px solid var(--border-2);
+}
+
+.type-scale-row {
+  display: grid;
+  grid-template-columns: 90px 52px 56px 1fr;
+  gap: 0 12px;
+  font-size: 12px;
+  padding: 7px 0;
+  border-bottom: 1px solid var(--border-2);
+  align-items: center;
+}
+
+.type-scale-row:last-child { border-bottom: none; }
+
+.type-scale-label { color: var(--text-2); font-weight: 500; }
+.type-scale-size  { color: var(--text-3); font-family: var(--font-mono); }
+.type-scale-weight{ color: var(--text-3); font-family: var(--font-mono); }
+.type-scale-usage { color: var(--text-4); }
+
+/* ── Color Palette ───────────────────────────────────────────────────────── */
+
+.color-palette {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+  align-items: flex-start;
+}
+
+.color-swatch-card {
+  display: flex;
+  flex-direction: column;
+  width: 88px;
+  gap: 6px;
+}
+
+.color-swatch-preview {
+  position: relative;
+  width: 88px;
+  height: 60px;
+  border-radius: var(--r);
+  border: 1px solid rgba(0,0,0,0.15);
+  overflow: hidden;
+  cursor: pointer;
+}
+
+.color-swatch-picker {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  opacity: 0;
+  cursor: pointer;
+  border: none;
+  padding: 0;
+}
+
+.color-swatch-remove {
+  position: absolute;
+  top: 4px;
+  right: 4px;
+  width: 16px;
+  height: 16px;
+  border-radius: 50%;
+  background: rgba(0,0,0,0.5);
+  border: none;
+  color: #fff;
+  font-size: 12px;
+  line-height: 1;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  opacity: 0;
+  transition: opacity 0.1s;
+  padding: 0;
+  z-index: 1;
+}
+
+.color-swatch-card:hover .color-swatch-remove { opacity: 1; }
+
+.color-swatch-info {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.color-swatch-name {
+  font-size: 11px;
+  font-weight: 500;
+  color: var(--text-2);
+  cursor: text;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.color-swatch-name:hover { color: var(--text); }
+
+.color-swatch-hex {
+  font-family: var(--font-mono);
+  font-size: 10px;
+  color: var(--text-3);
+  cursor: text;
+}
+
+.color-swatch-hex:hover { color: var(--text-2); }
+
+.color-swatch-field-input {
+  width: 100%;
+  background: var(--bg-2);
+  border: 1px solid var(--border-3);
+  border-radius: 3px;
+  color: var(--text);
+  font-family: inherit;
+  font-size: 11px;
+  padding: 1px 4px;
+  outline: none;
+}
+
+.color-swatch-hex-input {
+  font-family: var(--font-mono);
+  font-size: 10px;
+}
+
+.color-swatch-add {
+  width: 88px;
+  height: 60px;
+  border-radius: var(--r);
+  border: 1px dashed var(--border-3);
+  background: none;
+  color: var(--text-4);
+  font-size: 20px;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: all 0.1s;
+  align-self: flex-start;
+}
+
+.color-swatch-add:hover {
+  border-color: var(--text-3);
+  color: var(--text-2);
+  background: var(--bg-2);
+}
+
+/* ── Constraints ─────────────────────────────────────────────────────────── */
+
+.constraints-list {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}
+
+.constraint-item {
+  font-size: 13px;
+  color: var(--text-2);
+  line-height: 1.5;
+  display: flex;
+  gap: 8px;
+}
+
+.constraint-item::before {
+  content: '·';
+  color: var(--text-4);
+  flex-shrink: 0;
+}
+
+/* ── Copy feedback ───────────────────────────────────────────────────────── */
+
+.copy-btn {
+  background: var(--bg-3);
+  border: 1px solid var(--border);
+  border-radius: 3px;
+  color: var(--text-3);
+  cursor: pointer;
+  font-family: var(--font-sans);
+  font-size: 10px;
+  padding: 2px 7px;
+  height: 20px;
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  transition: all 0.1s;
+  white-space: nowrap;
+}
+
+.copy-btn:hover {
+  border-color: var(--border-3);
+  color: var(--text-2);
+}
+
+.copy-btn.copied {
+  color: var(--success);
+  border-color: var(--success);
+}
+
+/* ── Export Bar ──────────────────────────────────────────────────────────── */
+
+.export-bar {
+  height: 44px;
+  min-height: 44px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 20px;
+  border-top: 1px solid var(--border);
+  background: var(--bg-1);
+  flex-shrink: 0;
+}
+
+.export-bar-left {
+  font-size: 11px;
+  color: var(--text-4);
+}
+
+.export-bar-right {
+  display: flex;
+  gap: 6px;
+}
+
+/* ── AI badge ────────────────────────────────────────────────────────────── */
+
+.settings-open-btn { font-size: 16px; }
+
+.ai-badge {
+  font-size: 9px;
+  font-weight: 700;
+  letter-spacing: 0.08em;
+  color: var(--accent);
+  border: 1px solid var(--accent-dim);
+  border-radius: 3px;
+  padding: 1px 5px;
+  cursor: default;
+  flex-shrink: 0;
+}
+
+/* ── Generate error banner ───────────────────────────────────────────────── */
+
+.generate-error {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 20px;
+  background: rgba(138, 48, 48, 0.15);
+  border-bottom: 1px solid rgba(138, 48, 48, 0.3);
+  font-size: 12px;
+  flex-shrink: 0;
+}
+
+.generate-error-icon { color: #c04040; flex-shrink: 0; }
+.generate-error-msg  { color: var(--text-2); flex: 1; line-height: 1.4; }
+.generate-error-retry { margin-left: auto; font-size: 11px; flex-shrink: 0; }
+
+/* ── Settings overlay + panel ────────────────────────────────────────────── */
+
+.settings-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.6);
+  z-index: 200;
+  display: flex;
+  align-items: flex-start;
+  justify-content: flex-end;
+  padding: var(--header-h) 0 0;
+}
+
+.settings-panel {
+  width: 400px;
+  height: calc(100vh - var(--header-h));
+  background: var(--bg-2);
+  border-left: 1px solid var(--border-3);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.settings-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 20px;
+  height: 44px;
+  border-bottom: 1px solid var(--border);
+  flex-shrink: 0;
+}
+
+.settings-title {
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--text);
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+}
+
+.settings-close {
+  background: none;
+  border: none;
+  color: var(--text-3);
+  font-size: 18px;
+  cursor: pointer;
+  padding: 0;
+  line-height: 1;
+  width: 24px;
+  height: 24px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: var(--r);
+}
+
+.settings-close:hover { background: var(--bg-3); color: var(--text); }
+
+.settings-body {
+  flex: 1;
+  overflow-y: auto;
+  padding: 20px;
+  display: flex;
+  flex-direction: column;
+  gap: 28px;
+}
+
+.settings-section {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.settings-section-label {
+  font-size: 10px;
+  font-weight: 700;
+  letter-spacing: 0.1em;
+  text-transform: uppercase;
+  color: var(--text-4);
+}
+
+.settings-toggle-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  cursor: pointer;
+}
+
+.settings-toggle-info {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.settings-toggle-name {
+  font-size: 13px;
+  color: var(--text);
+  font-weight: 500;
+}
+
+.settings-toggle-desc {
+  font-size: 11px;
+  color: var(--text-3);
+  line-height: 1.4;
+}
+
+/* Toggle switch */
+.toggle {
+  width: 36px;
+  height: 20px;
+  background: var(--bg-4);
+  border: 1px solid var(--border-3);
+  border-radius: 10px;
+  cursor: pointer;
+  position: relative;
+  flex-shrink: 0;
+  transition: background 0.15s, border-color 0.15s;
+}
+
+.toggle.on {
+  background: var(--accent-dim);
+  border-color: var(--accent);
+}
+
+.toggle-thumb {
+  position: absolute;
+  top: 2px;
+  left: 2px;
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--text-3);
+  transition: transform 0.15s, background 0.15s;
+}
+
+.toggle.on .toggle-thumb {
+  transform: translateX(16px);
+  background: var(--accent);
+}
+
+/* Settings fields */
+.settings-field {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.settings-field-label {
+  font-size: 11px;
+  font-weight: 500;
+  color: var(--text-3);
+}
+
+.settings-field-row {
+  display: flex;
+  gap: 6px;
+}
+
+.settings-input {
+  flex: 1;
+  background: var(--bg-1);
+  border: 1px solid var(--border-3);
+  border-radius: var(--r);
+  color: var(--text);
+  font-family: var(--font-mono);
+  font-size: 12px;
+  padding: 6px 10px;
+  outline: none;
+  width: 100%;
+  transition: border-color 0.1s;
+}
+
+.settings-input:focus { border-color: var(--accent-dim); }
+
+.settings-test-btn { flex-shrink: 0; }
+.settings-test-btn.testing { opacity: 0.6; }
+
+.settings-status {
+  font-size: 11px;
+  padding: 4px 8px;
+  border-radius: var(--r);
+  line-height: 1.4;
+}
+
+.settings-status.ok    { background: rgba(74, 148, 112, 0.15); color: #4a9470; }
+.settings-status.error { background: rgba(138, 48, 48, 0.15);  color: #c04040; }
+
+.settings-model-list {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  max-height: 180px;
+  overflow-y: auto;
+  border: 1px solid var(--border);
+  border-radius: var(--r);
+  padding: 4px;
+  background: var(--bg-1);
+}
+
+.settings-model-item {
+  text-align: left;
+  background: none;
+  border: none;
+  color: var(--text-2);
+  font-family: var(--font-mono);
+  font-size: 12px;
+  padding: 5px 8px;
+  border-radius: 3px;
+  cursor: pointer;
+}
+
+.settings-model-item:hover  { background: var(--bg-3); color: var(--text); }
+.settings-model-item.active { background: var(--bg-3); color: var(--accent); }
+
+.settings-field-hint {
+  font-size: 11px;
+  color: var(--text-4);
+  line-height: 1.5;
+}
+
+.settings-field-hint code {
+  font-family: var(--font-mono);
+  color: var(--text-3);
+  background: var(--bg-1);
+  padding: 1px 4px;
+  border-radius: 3px;
+}
+
+.settings-help p {
+  font-size: 12px;
+  color: var(--text-3);
+  line-height: 1.6;
+  margin-bottom: 8px;
+}
+
+.settings-help p:last-child { margin-bottom: 0; }
+
+.settings-help strong { color: var(--text-2); font-weight: 500; }
+
+.settings-help code {
+  font-family: var(--font-mono);
+  font-size: 11px;
+  color: var(--text-3);
+  background: var(--bg-1);
+  padding: 2px 5px;
+  border-radius: 3px;
+  display: inline-block;
+  margin-top: 4px;
+}
+
+/* ── Scrollbar global ────────────────────────────────────────────────────── */
+
+::-webkit-scrollbar { width: 6px; height: 6px; }
+::-webkit-scrollbar-track { background: transparent; }
+::-webkit-scrollbar-thumb { background: var(--border-3); border-radius: 3px; }
+::-webkit-scrollbar-thumb:hover { background: var(--border-3); }
+
+/* ── Utilities ───────────────────────────────────────────────────────────── */
+
+.sr-only {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
+}