/* ==========================================================================
   kis6 工具箱 · 主样式
   ========================================================================== */

:root {
  --bg: #f6f7fb;
  --bg-elevated: #ffffff;
  --panel: #ffffff;
  --panel-alt: #f8fafc;
  --border: #e4e8f0;
  --border-strong: #d3d9e6;
  --text: #16213a;
  --text-dim: #5d6b85;
  --text-faint: #8a97ad;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef2ff;
  --success: #0f9d58;
  --success-soft: #e6f4ea;
  --warn: #f59e0b;
  --warn-soft: #fef3c7;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow: 0 4px 16px rgba(16, 24, 40, .08);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sidebar-w: 268px;
  --header-h: 60px;
}

[data-theme="dark"] {
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --panel: #161b22;
  --panel-alt: #1c2128;
  --border: #2a313c;
  --border-strong: #3a434f;
  --text: #e6edf3;
  --text-dim: #9aa7b8;
  --text-faint: #6b7684;
  --primary: #6366f1;
  --primary-hover: #7c7ff5;
  --primary-soft: #1e2138;
  --success: #3fb950;
  --success-soft: #14261b;
  --warn: #d29922;
  --warn-soft: #2b2314;
  --danger: #f85149;
  --danger-soft: #2d1618;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow: 0 4px 16px rgba(0, 0, 0, .4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

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

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ------------------------------- 布局 ------------------------------- */

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

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: margin-left .2s ease;
}

.sidebar.collapsed { margin-left: calc(-1 * var(--sidebar-w)); }

.sidebar-head {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.brand { font-weight: 600; font-size: 15px; }

/* 侧栏顶部的站点名，点回首页。是 <a>，去掉下划线和链接色 */
.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
}

/* ------------------------------- 页脚 ------------------------------- */

.site-footer {
  flex-shrink: 0;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--panel);
  text-align: center;
  font-size: 12px;
  color: var(--text-faint);
}

.site-footer .footer-line { line-height: 1.9; }

.site-footer a {
  color: var(--text-faint);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.sidebar-search {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.search-input {
  width: 100%;
  height: 36px;
  padding: 0 12px 0 34px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--panel-alt) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a97ad' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.3-4.3'/%3E%3C/svg%3E") no-repeat 10px center;
  color: var(--text);
  font-size: 13px;
  outline: none;
}

.search-input:focus {
  border-color: var(--primary);
  background-color: var(--panel);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0 24px;
}

.nav-group-title {
  padding: 12px 16px 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  margin: 1px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13.5px;
  transition: background .12s, color .12s;
  border: none;
  background: none;
  /* 侧栏项已改成 <a href>，得把链接的下划线和默认色去掉 */
  text-decoration: none;
  width: calc(100% - 16px);
  text-align: left;
  font-family: inherit;
}

.nav-item:hover { background: var(--panel-alt); color: var(--text); }

.nav-item.active {
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 500;
}

.nav-item .icon { font-size: 15px; width: 20px; text-align: center; flex-shrink: 0; }

.nav-badge {
  margin-left: auto;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 20px;
  background: var(--panel-alt);
  color: var(--text-faint);
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.topbar {
  height: var(--header-h);
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
}

.topbar-title { font-weight: 600; font-size: 15px; }
.topbar-desc { color: var(--text-dim); font-size: 12.5px; }
.topbar-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }

.content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

/* ------------------------------- 控件 ------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: all .12s;
  white-space: nowrap;
}

.btn:hover { background: var(--panel-alt); border-color: var(--primary); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

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

.btn-sm { height: 28px; padding: 0 10px; font-size: 12px; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); }

.input, .select, .textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
}

.input:focus, .select:focus, .textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.textarea {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  resize: vertical;
  min-height: 120px;
}

.field { margin-bottom: 14px; }
.field-label {
  display: block;
  margin-bottom: 5px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-dim);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-dim);
  user-select: none;
}
.checkbox-row input { cursor: pointer; }

/* ------------------------------- 卡片 ------------------------------- */

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--text);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(232px, 1fr));
  gap: 12px;
}

.tool-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
  transition: all .15s;
  text-align: left;
  font-family: inherit;
  /* 卡片也改成了 <a href>：a 默认 inline，撑不满网格格子 */
  display: block;
  color: inherit;
  text-decoration: none;
}

.tool-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.tool-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.tool-card-icon { font-size: 20px; }
.tool-card-name { font-weight: 600; font-size: 13.5px; }
.tool-card-desc { color: var(--text-dim); font-size: 12px; line-height: 1.5; }

.section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin: 22px 0 10px;
}
.section-title:first-child { margin-top: 0; }

/* ------------------------------- 工具工作区 ------------------------------- */

.tool-header { margin-bottom: 16px; }
.tool-header h1 {
  font-size: 20px;
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tool-header p { margin: 0; color: var(--text-dim); font-size: 13px; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.toolbar .spacer { flex: 1; }
.toolbar:last-child { margin-bottom: 0; }

/* 操作组的小标题，用来把一排按钮按语义分开 */
.toolbar-label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .4px;
  color: var(--text-faint);
  white-space: nowrap;
  padding-right: 2px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; }
}

.pane { display: flex; flex-direction: column; }
.pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
}

.output {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 120px;
  max-height: 520px;
  overflow: auto;
}

.status {
  margin-top: 8px;
  font-size: 12px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
}
.status-ok { background: var(--success-soft); color: var(--success); }
.status-err { background: var(--danger-soft); color: var(--danger); }
.status-info { background: var(--primary-soft); color: var(--primary); }

.kv-table { width: 100%; border-collapse: collapse; }
.kv-table th, .kv-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 13px;
  vertical-align: top;
}
.kv-table th { color: var(--text-dim); font-weight: 500; width: 120px; background: var(--panel-alt); }
.kv-table tr:last-child td, .kv-table tr:last-child th { border-bottom: none; }

.empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-faint);
}
.empty .icon { font-size: 40px; margin-bottom: 10px; }

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

.toast-host {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  background: var(--text);
  color: var(--bg);
  padding: 9px 18px;
  border-radius: 20px;
  font-size: 13px;
  box-shadow: var(--shadow);
  animation: toast-in .2s ease;
}

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

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

/* ------------------------------- 加载 ------------------------------- */

.boot-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  gap: 16px;
  color: var(--text-dim);
}

.boot-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border-strong);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.boot-error {
  max-width: 640px;
  margin: 80px auto;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  line-height: 1.8;
}
.boot-error h2 { color: var(--danger); margin-top: 0; }
.boot-error pre {
  background: var(--panel-alt);
  padding: 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-family: var(--mono);
}

/* ------------------------------- 杂项 ------------------------------- */

.announce {
  background: var(--warn-soft);
  color: #92400e;
  border: 1px solid var(--warn);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  margin-bottom: 16px;
  font-size: 13px;
}

[data-theme="dark"] .announce { color: var(--warn); }

.drop-zone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--text-dim);
  cursor: pointer;
  transition: all .15s;
  background: var(--panel-alt);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

.drop-zone .icon { font-size: 32px; display: block; margin-bottom: 8px; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.muted { color: var(--text-dim); font-size: 12.5px; }
.mono { font-family: var(--mono); }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data-table th, table.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
table.data-table th {
  background: var(--panel-alt);
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
}
table.data-table tbody tr:hover { background: var(--panel-alt); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 6px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }