/* DevKit 样式 — 深色/浅色双主题，CSS 变量驱动 */
:root {
  --bg: #0b0f17;
  --bg-elev: #131a26;
  --bg-elev2: #1a2331;
  --border: #253044;
  --text: #e6edf6;
  --text-dim: #94a3b8;
  --accent: #5b8cff;
  --accent-2: #22d3ee;
  --ok: #34d399;
  --err: #f87171;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

html[data-theme="light"] {
  --bg: #f5f7fb;
  --bg-elev: #ffffff;
  --bg-elev2: #eef2f8;
  --border: #dde4ee;
  --text: #16202e;
  --text-dim: #5b6a80;
  --accent: #3b6dfb;
  --accent-2: #0891b2;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(900px 420px at 12% -10%, rgba(91, 140, 255, 0.16), transparent 60%),
    radial-gradient(760px 380px at 92% 0%, rgba(34, 211, 238, 0.12), transparent 60%);
  background-attachment: fixed;
}

a { color: var(--accent); }

/* ---------- 布局 ---------- */
.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.2px;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 4px 14px rgba(91, 140, 255, 0.35);
}

.brand small {
  color: var(--text-dim);
  font-weight: 500;
  font-size: 12px;
  margin-left: 2px;
}

.spacer { flex: 1; }

.icon-btn {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 10px;
  height: 36px;
  min-width: 36px;
  padding: 0 10px;
  cursor: pointer;
  font-size: 15px;
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.icon-btn:hover { border-color: var(--accent); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.hero {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-elev), var(--bg-elev2));
  border-radius: var(--radius);
  padding: 26px 24px;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.25;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  max-width: 62ch;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-dim);
}
.hero-stats b { color: var(--text); font-size: 14px; }

/* ---------- 搜索与分类 ---------- */
.toolbar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 18px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box svg {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  color: var(--text-dim);
  pointer-events: none;
}

#searchInput {
  width: 100%;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  padding: 0 44px 0 36px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#searchInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.18);
}

.kbd {
  position: absolute;
  right: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 6px;
  background: var(--bg-elev2);
}

.category-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.chip {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.14s ease;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #fff;
  font-weight: 600;
}

.count-pill {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
}

/* ---------- 工具网格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}

.card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  text-align: left;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  transition: transform 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 8px 22px rgba(91, 140, 255, 0.16);
}

.card:active { transform: translateY(-1px); }

.card-icon {
  font-size: 22px;
  line-height: 1;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--bg-elev2);
}

.card-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }

.card-name { font-weight: 650; font-size: 14.5px; }

.card-desc {
  font-size: 12.5px;
  color: var(--text-dim);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 10.5px;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 8px;
}

.empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-dim);
  padding: 48px 0;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ---------- 弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 16, 0.66);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}

.modal.open { display: flex; animation: fade 0.16s ease; }

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.modal-panel {
  width: min(680px, 100%);
  max-height: 88vh;
  overflow: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  animation: pop 0.18s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}

@keyframes pop { from { transform: translateY(14px) scale(0.98); opacity: 0; } to { transform: none; opacity: 1; } }

.modal-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-elev);
  z-index: 2;
}

.modal-head .card-icon { width: 36px; height: 36px; font-size: 19px; }

.modal-title { font-weight: 700; font-size: 16px; }
.modal-desc { font-size: 12px; color: var(--text-dim); }

.modal-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-size: 12.5px; color: var(--text-dim); font-weight: 600; }

.field input,
.field textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 9px 11px;
  font-size: 13.5px;
  font-family: var(--mono);
  outline: none;
  resize: vertical;
  transition: border-color 0.14s ease, box-shadow 0.14s ease;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.16);
}

.result {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  padding: 12px;
  font-family: var(--mono);
  font-size: 12.8px;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 44px;
  max-height: 300px;
  overflow: auto;
  color: var(--text-dim);
}

.result.has-content { color: var(--text); border-color: rgba(91, 140, 255, 0.4); }

.modal-foot {
  display: flex;
  gap: 8px;
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  position: sticky;
  bottom: 0;
  background: var(--bg-elev);
}

.btn {
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-elev2);
  color: var(--text);
  padding: 9px 16px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.13s ease;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #fff;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.08); }

.foot-hint {
  margin-left: auto;
  align-self: center;
  font-size: 11.5px;
  color: var(--text-dim);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 20px);
  background: var(--bg-elev2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13.5px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 90;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 页脚 ---------- */
.footer {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
}

@media (max-width: 560px) {
  .wrap { padding: 18px 14px 48px; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding: 20px 16px; }
}