/* =========================================================
   Neo-Brutalist Design System
   无圆角 · 粗黑边框 · 硬边缘阴影 · 高对比配色
   ========================================================= */
:root {
  --bg: #f7f5f2;
  --bg-sidebar: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #000000;
  --border: #000000;
  --border-w: 2px;
  --text: #111111;
  --text-secondary: #555555;
  --primary: #ff006e;
  --primary-hover: #d6005c;
  --primary-soft: #ffffff;
  --success: #ccff00;
  --success-soft: #f2ffcc;
  --danger: #ff3b30;
  --danger-soft: #ffe0de;
  --warning: #ff9500;
  --warning-soft: #ffeacc;
  --code-bg: #ffffff;
  --shadow-sm: 2px 2px 0 0 #000;
  --shadow: 4px 4px 0 0 #000;
  --shadow-lg: 6px 6px 0 0 #000;
  --radius: 0px;
  --mono: "JetBrains Mono", "Fira Code", ui-monospace, Consolas, "Courier New", monospace;
}

[data-theme="dark"] {
  --bg: #141414;
  --bg-sidebar: #1c1c1c;
  --bg-card: #1c1c1c;
  --bg-hover: #2c2c2c;
  --border: #ffffff;
  --border-w: 2px;
  --text: #f5f5f5;
  --text-secondary: #a8a8a8;
  --primary: #ff006e;
  --primary-hover: #ff4d94;
  --primary-soft: #2a121c;
  --success: #ccff00;
  --success-soft: #2a3300;
  --danger: #ff5c53;
  --danger-soft: #3a1412;
  --warning: #ff9500;
  --warning-soft: #3a2400;
  --code-bg: #1c1c1c;
  --shadow-sm: 2px 2px 0 0 #000;
  --shadow: 4px 4px 0 0 #000;
  --shadow-lg: 6px 6px 0 0 #000;
}

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

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
}

::selection { background: var(--primary); color: #fff; }

.app { display: flex; height: 100vh; overflow: hidden; }

/* ---------- Sidebar ---------- */
.sidebar {
  width: 264px;
  min-width: 264px;
  background: var(--bg-sidebar);
  border-right: var(--border-w) solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: var(--border-w) solid var(--border);
  cursor: pointer;
  transition: background 0.12s;
  user-select: none;
}

.brand:hover { background: var(--primary); color: #fff; }
.brand:hover .brand-text h1,
.brand:hover .brand-text p { color: #fff; }

.brand:focus-visible { outline: 3px solid var(--border); outline-offset: -3px; }

.brand-icon {
  width: 42px;
  height: 42px;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-sm);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.brand:hover .brand-icon { background: #fff; box-shadow: none; transform: translate(2px, 2px); }

.brand-text h1 { font-size: 17px; font-weight: 900; line-height: 1.2; }
.brand-text p { font-size: 11px; color: var(--text-secondary); font-family: var(--mono); }

.search-box {
  position: relative;
  padding: 14px 14px 6px;
}

.search-box .search-icon {
  position: absolute;
  left: 26px;
  top: 26px;
  color: var(--text-secondary);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: var(--border-w) solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 13px;
  font-family: var(--mono);
  outline: none;
  transition: box-shadow 0.12s;
}

.search-box input:focus { box-shadow: var(--shadow); }

.nav {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px 16px;
}

.nav::-webkit-scrollbar { width: 8px; }
.nav::-webkit-scrollbar-thumb { background: var(--border); }

.nav-group-title {
  font-size: 12px;
  font-weight: 900;
  color: var(--text);
  padding: 16px 10px 6px;
  font-family: var(--mono);
}

.nav-group-title::before { content: "# "; color: var(--primary); }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: var(--border-w) solid transparent;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13.5px;
  transition: background 0.12s, box-shadow 0.12s, color 0.12s, transform 0.12s;
  white-space: nowrap;
  overflow: hidden;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: #fff;
  box-shadow: var(--shadow-sm);
  transform: translate(-1px, -1px);
}

.nav-item.active {
  background: var(--bg-hover);
  color: #fff;
  font-weight: 900;
  box-shadow: var(--shadow);
}

.nav-item:focus-visible { outline: 3px solid var(--border); outline-offset: -3px; }

.nav-item .nav-icon { font-size: 16px; flex-shrink: 0; }
.nav-item .nav-label { overflow: hidden; text-overflow: ellipsis; font-family: var(--mono); font-size: 12.5px; }

.nav-item .nav-star {
  margin-left: auto;
  font-size: 11px;
  color: var(--warning);
  flex-shrink: 0;
  opacity: 0.9;
}

.tool-card .tool-star {
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 13px;
  color: var(--warning);
  display: none;
}

.tool-card.fav .tool-star { display: block; }

.theme-btn.fav-active { color: var(--primary); border-color: var(--border); background: var(--primary); }
.theme-btn.fav-active svg path { fill: #fff; }

/* ---------- Back to top ---------- */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  font-size: 18px;
  font-weight: 900;
  transition: box-shadow 0.12s, transform 0.12s;
}

.back-top.show { display: flex; }
.back-top:hover { box-shadow: var(--shadow-lg); transform: translate(-2px, -2px); }
.back-top:active { box-shadow: none; transform: translate(2px, 2px); }

.nav-empty {
  padding: 24px 12px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  font-family: var(--mono);
}

/* ---------- Main ---------- */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 24px;
  background: var(--bg-sidebar);
  border-bottom: var(--border-w) solid var(--border);
  flex-shrink: 0;
}

.tool-title { flex: 1; min-width: 0; }
.tool-title h2 { font-size: 17px; font-weight: 900; }
.tool-title p { font-size: 12px; color: var(--text-secondary); font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span { display: block; width: 20px; height: 3px; background: var(--border); border-radius: 0; }

.theme-btn {
  background: none;
  border: var(--border-w) solid var(--border);
  padding: 7px 9px;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s, box-shadow 0.12s;
}

.theme-btn:hover { background: var(--bg-hover); color: #fff; box-shadow: var(--shadow-sm); }
.theme-btn:hover svg path { fill: #fff; }
.theme-btn:active { box-shadow: none; transform: translate(2px, 2px); }

.content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* ---------- Home ---------- */
.home-hero {
  text-align: center;
  padding: 34px 20px 26px;
  border: var(--border-w) solid var(--border);
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.home-hero h2 { font-size: 30px; font-weight: 900; margin-bottom: 8px; letter-spacing: -0.5px; }
.home-hero p { color: #fff; font-size: 14px; font-family: var(--mono); margin-bottom: 18px; }

.home-hero .btn { background: #fff; color: #111; }
.home-hero .btn:hover { background: #ffd7e9; }

.home-search {
  position: relative;
  max-width: 460px;
  margin: 0 auto;
}

.home-search .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.home-search input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border: var(--border-w) solid var(--border);
  background: #fff;
  color: #111;
  font-size: 14px;
  font-family: var(--mono);
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.12s;
}

.home-search input:focus { box-shadow: var(--shadow); }

.category-section { margin-top: 32px; }

.category-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 17px;
  font-weight: 900;
}

.category-header .cat-icon {
  width: 34px;
  height: 34px;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-sm);
  background: #fff;
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.tool-card {
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  padding: 18px;
  cursor: pointer;
  transition: box-shadow 0.12s, transform 0.12s, background 0.12s;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.tool-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translate(-2px, -2px);
  background: var(--primary);
  color: #fff;
}

.tool-card:hover .tool-desc { color: #fff; }
.tool-card:hover .tool-star { color: #fff; }

.tool-card:active { box-shadow: none; transform: translate(4px, 4px); }

.tool-card:focus-visible { outline: 3px solid var(--border); outline-offset: 2px; }

.tool-card .tool-icon { font-size: 24px; }
.tool-card .tool-name { font-weight: 900; font-size: 14px; }
.tool-card .tool-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.4; font-family: var(--mono); }

/* ---------- Tool Panel ---------- */
.panel {
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  padding: 22px;
  box-shadow: var(--shadow-lg);
  max-width: 980px;
  margin: 0 auto;
}

.panel-section { margin-bottom: 20px; }
.panel-section:last-child { margin-bottom: 0; }

.panel-label {
  font-size: 12px;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.panel-label::before { content: "▸ "; color: var(--primary); }

.textarea {
  width: 100%;
  min-height: 160px;
  padding: 12px;
  border: var(--border-w) solid var(--border);
  background: var(--code-bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
  outline: none;
  transition: box-shadow 0.12s;
}

.textarea:focus { box-shadow: var(--shadow); }

.textarea-sm { min-height: 90px; }

.textarea[readonly] { cursor: default; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: var(--border-w) solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 13px;
  font-weight: 900;
  font-family: var(--mono);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.12s, transform 0.12s, background 0.12s, color 0.12s;
}

.btn:hover { background: var(--bg-hover); color: #fff; box-shadow: var(--shadow); transform: translate(-2px, -2px); }
.btn:active { box-shadow: none; transform: translate(2px, 2px); }

.btn:focus-visible,
.theme-btn:focus-visible,
.hamburger:focus-visible,
.back-top:focus-visible {
  outline: 3px solid var(--border);
  outline-offset: 2px;
}

.btn:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; transform: none; }

.btn-primary {
  background: var(--primary);
  border-color: var(--border);
  color: #fff;
  box-shadow: var(--shadow);
}

.btn-primary:hover { background: var(--primary-hover); color: #fff; box-shadow: var(--shadow-lg); }

.btn-success {
  background: var(--success);
  border-color: var(--border);
  color: #111;
  box-shadow: var(--shadow);
}

.btn-success:hover { background: var(--success); color: #111; box-shadow: var(--shadow-lg); }

.btn-danger {
  background: var(--danger);
  border-color: var(--border);
  color: #fff;
  box-shadow: var(--shadow);
}

.btn-danger:hover { background: var(--danger); color: #fff; box-shadow: var(--shadow-lg); }

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  box-shadow: var(--shadow);
}

.btn-secondary:hover { background: var(--bg-hover); color: #fff; box-shadow: var(--shadow-lg); }

.btn-sm { padding: 4px 10px; font-size: 12px; box-shadow: var(--shadow-sm); }

.input, .select {
  padding: 8px 12px;
  border: var(--border-w) solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 13px;
  font-family: var(--mono);
  outline: none;
  transition: box-shadow 0.12s;
}

.input:focus, .select:focus { box-shadow: var(--shadow); }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.field-row > .field { min-width: 150px; }

.stat-row { display: flex; flex-wrap: wrap; gap: 16px; }

.stat-card {
  flex: 1;
  min-width: 110px;
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  padding: 14px;
  text-align: center;
}

.stat-card .stat-value { font-size: 24px; font-weight: 900; color: var(--primary); font-family: var(--mono); }
.stat-card .stat-label { font-size: 11px; color: var(--text-secondary); font-family: var(--mono); }

.result-box {
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 12px;
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 320px;
  overflow: auto;
  color: var(--text);
}

.hint { font-size: 12px; color: var(--text-secondary); margin-top: 6px; font-family: var(--mono); }

.chk-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}

.switch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
}

.checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

/* ---------- Options / Tabs ---------- */
.opt-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.opt-tab {
  padding: 6px 14px;
  border: var(--border-w) solid var(--border);
  background: var(--bg-card);
  font-size: 13px;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.12s, transform 0.12s, background 0.12s, color 0.12s;
}

.opt-tab.active {
  background: var(--bg-hover);
  color: #fff;
  box-shadow: var(--shadow);
}

.opt-tab:hover:not(.active) { box-shadow: var(--shadow); transform: translate(-1px, -1px); color: var(--text); }

/* ---------- Match / diff ---------- */
.match-item {
  padding: 6px 10px;
  border: var(--border-w) solid var(--border);
  background: var(--bg-card);
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  white-space: pre-wrap;
  word-break: break-all;
}

.diff-ctx { background: transparent; border: none; border-left: 4px solid var(--border); }
.diff-add { background: var(--success-soft); border-left: 4px solid var(--success); border: var(--border-w) solid var(--border); }
.diff-del { background: var(--danger-soft); border-left: 4px solid var(--danger); border: var(--border-w) solid var(--border); }

/* ---------- Generator ---------- */
.gen-result {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 14px;
  white-space: pre-wrap;
  word-break: break-all;
  margin-top: 12px;
}

.gen-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 8px 12px;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 13px;
  word-break: break-all;
}

.gen-list-item .gen-value { flex: 1; }

.pw-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.pw-options label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 8px 10px;
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  cursor: pointer;
}

.pw-strength { margin-top: 14px; }
.pw-strength-bar { height: 10px; background: var(--code-bg); border: var(--border-w) solid var(--border); overflow: hidden; }
.pw-strength-fill { height: 100%; transition: width 0.3s, background 0.3s; }
.pw-strength-text { font-size: 12px; margin-top: 4px; color: var(--text-secondary); font-family: var(--mono); }

.color-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.color-preview {
  width: 70px;
  height: 70px;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-sm);
}

.color-formats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.format-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
}

.format-item code { word-break: break-all; }

/* ---------- Upload ---------- */
.upload-zone {
  border: 3px solid var(--border);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  background: var(--bg-card);
  transition: background 0.12s, box-shadow 0.12s;
}

.upload-zone:hover, .upload-zone.dragover { background: var(--primary-soft); box-shadow: var(--shadow); }
.upload-zone .uz-icon { font-size: 34px; margin-bottom: 8px; }
.upload-zone .uz-text { font-size: 14px; font-weight: 900; }
.upload-zone .uz-sub { font-size: 12px; color: var(--text-secondary); margin-top: 4px; font-family: var(--mono); }

.preview-img {
  max-width: 100%;
  max-height: 260px;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-top: 12px;
}

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.toast {
  padding: 10px 18px;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  font-size: 13px;
  font-family: var(--mono);
  font-weight: 700;
  animation: toast-in 0.2s ease;
  max-width: 90vw;
}

.toast-success { background: var(--success); color: #111; }
.toast-error { background: var(--danger); color: #fff; }
.toast-info { background: var(--primary); color: #fff; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.toast-out { opacity: 0; transition: opacity 0.3s; }

/* ---------- Markdown render ---------- */
.md-render { line-height: 1.7; }
.md-render h1, .md-render h2, .md-render h3, .md-render h4, .md-render h5, .md-render h6 {
  margin: 16px 0 8px;
  font-weight: 900;
  line-height: 1.4;
}
.md-render h1 { font-size: 22px; border-bottom: var(--border-w) solid var(--border); padding-bottom: 6px; }
.md-render h2 { font-size: 19px; }
.md-render h3 { font-size: 16px; }
.md-render p { margin: 8px 0; }
.md-render a { color: var(--primary); text-decoration: underline; }
.md-render a:hover { color: var(--primary-hover); }
.md-render code {
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  padding: 2px 6px;
  font-family: var(--mono);
  font-size: 0.9em;
}
.md-render pre {
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 12px;
  overflow-x: auto;
  margin: 10px 0;
}
.md-render pre code { background: none; border: none; padding: 0; }
.md-render ul, .md-render ol { padding-left: 24px; margin: 8px 0; }
.md-render blockquote {
  border-left: 5px solid var(--border);
  margin: 10px 0;
  padding: 6px 14px;
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  color: var(--text-secondary);
  font-family: var(--mono);
}
.md-render hr { border: none; border-top: 3px solid var(--border); margin: 16px 0; }
.md-render table { border-collapse: collapse; margin: 12px 0; width: 100%; }
.md-render table th, .md-render table td {
  border: var(--border-w) solid var(--border);
  padding: 6px 12px;
  text-align: left;
}
.md-render table th { background: var(--bg-card); font-weight: 900; }

/* ---------- Command Palette ---------- */
.cmd-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}

.cmd-mask.show { display: flex; }

.cmd-panel {
  width: min(560px, 92vw);
  background: var(--bg-card);
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: cmd-in 0.15s ease;
}

@keyframes cmd-in {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.cmd-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: var(--border-w) solid var(--border);
}

.cmd-prompt { color: var(--primary); font-weight: 900; font-size: 18px; font-family: var(--mono); }

.cmd-input-row input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-family: var(--mono);
}

.cmd-hint { font-size: 11px; color: var(--text-secondary); font-family: var(--mono); }

.cmd-list { max-height: 46vh; overflow-y: auto; padding: 8px; }

.cmd-empty { padding: 22px; text-align: center; color: var(--text-secondary); font-size: 13px; font-family: var(--mono); }

.cmd-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: var(--border-w) solid transparent;
  cursor: pointer;
  transition: background 0.12s, box-shadow 0.12s;
}

.cmd-item.selected { background: var(--bg-hover); color: #fff; box-shadow: var(--shadow); }
.cmd-item.selected .cmd-item-desc,
.cmd-item.selected .cmd-item-type { color: #fff; }

.cmd-item:focus-visible {
  outline: 3px solid var(--border);
  outline-offset: -3px;
}

.cmd-item-icon { font-size: 18px; width: 26px; text-align: center; flex-shrink: 0; }
.cmd-item-text { flex: 1; min-width: 0; }
.cmd-item-title { font-size: 14px; font-weight: 900; }
.cmd-item-desc { font-size: 12px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-family: var(--mono); }
.cmd-item-type {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 1px 8px;
  flex-shrink: 0;
  font-family: var(--mono);
}

/* ---------- Plugin manager ---------- */
.plg-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px;
  border: var(--border-w) solid var(--border);
  margin-bottom: 12px;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.plg-item.off { opacity: 0.55; }

.plg-icon {
  width: 40px;
  height: 40px;
  border: var(--border-w) solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.plg-info { flex: 1; min-width: 0; }
.plg-name { font-weight: 900; font-size: 14px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.plg-ver { font-size: 11px; color: var(--text-secondary); font-weight: 400; font-family: var(--mono); }
.plg-author { font-size: 11px; color: var(--text-secondary); }
.plg-desc { font-size: 12.5px; color: var(--text-secondary); margin-top: 3px; }
.plg-meta { font-size: 11.5px; margin-top: 4px; color: var(--primary); font-family: var(--mono); font-weight: 700; }
.plg-actions { flex-shrink: 0; }

.plg-badge {
  font-size: 10px;
  padding: 1px 8px;
  font-weight: 900;
  border: var(--border-w) solid var(--border);
  font-family: var(--mono);
}

.plg-badge.plg-builtin { background: var(--primary); color: #fff; }
.plg-badge.plg-ext { background: var(--warning); color: #111; }

/* ---------- Responsive ---------- */
.sidebar-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 99;
}

@media (max-width: 860px) {
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; transform: translateX(-100%); transition: transform 0.25s ease; }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .sidebar-mask.show { display: block; }
  .hamburger { display: flex; }
  .content { padding: 16px; }
}

/* ---------- Design Plugin (gradient / shadow / palette / flexbox / grid) ---------- */
.design-preview {
  border: var(--border-w) solid var(--border);
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.design-preview.dp-dark { background: #1e1e2e; }
.design-preview-label {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  padding: 4px 10px;
  border: var(--border-w) solid var(--border);
  background: #fff;
  max-width: 90%;
  word-break: break-all;
  font-family: var(--mono);
}
.design-control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}
.design-control-grid .field { margin-bottom: 0; }
.swatch-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.swatch {
  width: 56px;
  height: 56px;
  border: var(--border-w) solid var(--border);
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 4px;
}
.swatch span {
  font-size: 10px;
  color: #fff;
  background: #000;
  border: 1px solid #fff;
  padding: 0 4px;
  font-family: var(--mono);
}
.flexbox-demo {
  border: var(--border-w) solid var(--border);
  min-height: 140px;
  padding: 12px;
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--bg-card);
}
.flexbox-demo .fd-item {
  min-width: 36px;
  min-height: 36px;
  border: var(--border-w) solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-family: var(--mono);
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  padding: 4px 8px;
  box-sizing: border-box;
}
.grid-demo {
  border: var(--border-w) solid var(--border);
  min-height: 160px;
  padding: 10px;
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
  background: var(--bg-card);
}
.grid-demo .gd-item {
  border: var(--border-w) solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-family: var(--mono);
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  min-height: 36px;
}
.design-code {
  font-family: var(--mono);
  font-size: 12.5px;
  background: var(--code-bg);
  border: var(--border-w) solid var(--border);
  padding: 10px 12px;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: 10px;
}

/* ---------- AI Plugin (chat) ---------- */
.chat-wrap {
  max-height: 340px;
  overflow-y: auto;
  border: var(--border-w) solid var(--border);
  padding: 12px;
  margin-bottom: 10px;
  background: var(--bg-card);
}
.chat-msg { display: flex; flex-direction: column; margin-bottom: 10px; }
.chat-user { align-items: flex-end; }
.chat-ai { align-items: flex-start; }
.chat-bubble {
  max-width: 92%;
  padding: 9px 13px;
  border: var(--border-w) solid var(--border);
  font-size: 13.5px;
  line-height: 1.6;
  word-break: break-word;
  white-space: pre-wrap;
}
.chat-user .chat-bubble {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.chat-ai .chat-bubble {
  background: var(--code-bg);
  color: var(--text);
}
.chat-actions { margin-top: 4px; }
.ai-input-row { display: flex; gap: 8px; align-items: flex-end; }
.ai-input-row .textarea { flex: 1; resize: vertical; min-height: 52px; }