/* ============ 主题变量 ============ */
:root {
  --bg: #f4f6fa;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #f0f4ff;
  --text: #1c2333;
  --text-2: #6b7488;
  --line: #e3e8f0;
  --primary: #4f6ef7;
  --primary-soft: #e9eeff;
  --danger: #e5484d;
  --shadow: 0 1px 2px rgba(20,30,60,.06), 0 4px 14px rgba(20,30,60,.06);
  --shadow-lg: 0 8px 30px rgba(20,30,60,.14);
  --radius: 12px;
}
[data-theme="dark"] {
  --bg: #10131a;
  --bg-soft: #171b25;
  --card: #1b202c;
  --card-hover: #232a3a;
  --text: #e8ecf4;
  --text-2: #8b94a7;
  --line: #2a3142;
  --primary: #6d8bff;
  --primary-soft: #232c4a;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 14px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
/* hidden 属性必须生效：防止被 .menu/.preview 等 display 规则覆盖 */
[hidden] { display: none !important; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .25s, color .25s;
}
button { font: inherit; cursor: pointer; }
input, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
kbd {
  background: var(--line); border-radius: 4px; padding: 1px 6px;
  font-family: ui-monospace, monospace; font-size: .85em;
}

/* ============ 顶栏 ============ */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-soft) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.brand-logo { font-size: 24px; }
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: .5px; }

.search-wrap { position: relative; flex: 1; max-width: 520px; }
.search-icon {
  position: absolute; left: 12px; top: 50%; translate: 0 -50%;
  width: 16px; height: 16px; color: var(--text-2); pointer-events: none;
}
#search {
  width: 100%; padding: 9px 34px 9px 36px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg); outline: none;
  transition: border-color .2s, box-shadow .2s;
}
#search:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.search-clear {
  position: absolute; right: 8px; top: 50%; translate: 0 -50%;
  border: none; background: transparent; color: var(--text-2);
  font-size: 18px; line-height: 1; padding: 4px 8px; border-radius: 50%;
}
.search-clear:hover { color: var(--text); }

.topbar-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid transparent; border-radius: 8px;
  padding: 8px 14px; background: transparent; color: var(--text);
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:active { transform: scale(.97); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { border-color: var(--line); background: var(--bg-soft); }
.btn-ghost:hover { background: var(--card-hover); }
.btn-icon { padding: 8px 10px; }

/* ============ 分组标签 ============ */
.group-tabs {
  max-width: 1180px; margin: 0 auto; width: 100%;
  padding: 10px 20px 0; display: flex; gap: 6px; flex-wrap: wrap;
}
.group-tab {
  border: none; background: transparent; color: var(--text-2);
  padding: 6px 14px; border-radius: 999px; font-size: 14px;
  transition: background .15s, color .15s;
}
.group-tab:hover { background: var(--card-hover); color: var(--text); }
.group-tab.active { background: var(--primary); color: #fff; }

/* ============ 主内容 ============ */
.main { flex: 1; max-width: 1180px; margin: 0 auto; width: 100%; padding: 18px 20px 40px; }

.section { margin-bottom: 30px; }
.section-head {
  display: flex; align-items: center; gap: 8px;
  margin: 6px 0 12px; font-size: 15px; font-weight: 600; color: var(--text-2);
}
.section-head::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.section-count {
  font-size: 12px; background: var(--line); color: var(--text-2);
  border-radius: 999px; padding: 1px 8px; font-weight: 400;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  gap: 12px;
}

.card {
  position: relative;
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px;
  box-shadow: var(--shadow);
  transition: transform .12s, box-shadow .12s, border-color .12s, background .12s;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: color-mix(in srgb, var(--primary) 40%, var(--line));
  background: var(--card-hover);
}
.card.dragging {
  opacity: .35;
  border: 2px dashed var(--primary);
  transform: none;
  box-shadow: none;
}
@media (hover: hover) {
  .card { cursor: grab; }
  .card:active { cursor: grabbing; }
}
.card.pinned::before {
  content: "📌"; position: absolute; top: 6px; right: 8px; font-size: 11px;
}

.logo-box {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 10px; background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; border: 1px solid var(--line);
}
.logo-box img { width: 28px; height: 28px; object-fit: contain; }
.logo-letter {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 700; color: #fff;
}

.card-text { min-width: 0; flex: 1; }
.card-name {
  font-size: 14.5px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card-desc {
  margin-top: 3px; font-size: 12px; color: var(--text-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card-host {
  margin-top: 3px; font-size: 11.5px; color: var(--text-2); opacity: .75;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.card-tools {
  position: absolute; right: 8px; bottom: 8px;
  display: flex; gap: 2px; opacity: 0; transition: opacity .15s;
}
.card:hover .card-tools, .card:focus-within .card-tools { opacity: 1; }
.tool-btn {
  border: none; background: var(--bg-soft); color: var(--text-2);
  width: 26px; height: 26px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
}
.tool-btn:hover { color: var(--primary); background: var(--primary-soft); }
.tool-btn.del:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, transparent); }
.tool-btn svg { width: 14px; height: 14px; }

/* ============ 空状态 ============ */
.empty { text-align: center; padding: 70px 0; color: var(--text-2); }
.empty-emoji { font-size: 52px; margin-bottom: 12px; }
.empty-sub { font-size: 13px; opacity: .8; }

/* ============ 页脚 ============ */
.footer {
  text-align: center; padding: 18px; font-size: 12px; color: var(--text-2);
  border-top: 1px solid var(--line);
}
.footer .dot { margin: 0 6px; }

/* ============ 弹窗 ============ */
dialog {
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--bg-soft); color: var(--text);
  box-shadow: var(--shadow-lg); padding: 0;
  width: min(440px, calc(100vw - 32px));
}
dialog::backdrop { background: rgba(10, 15, 30, .45); backdrop-filter: blur(2px); }
dialog form, .dlg-body { padding: 22px; }
dialog h3 { margin: 0 0 16px; font-size: 17px; }

.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 5px; }
.field > span i { color: var(--danger); font-style: normal; }
.field input, .field select {
  width: 100%; padding: 9px 12px;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft);
}
.field small { display: block; margin-top: 4px; font-size: 11.5px; color: var(--text-2); }
.field small.err { color: var(--danger); }
.field-row { display: flex; gap: 12px; align-items: end; }
.field-row .field { flex: 1; }
.field-check { flex: 0 0 auto; display: flex; align-items: center; gap: 6px; padding-bottom: 10px; }
.icon-row { display: flex; gap: 8px; }
.icon-row input { flex: 1; }
.icon-row .btn { flex-shrink: 0; white-space: nowrap; }
.icon-row .btn:disabled { opacity: .6; cursor: wait; }
.field-check input { width: auto; accent-color: var(--primary); }
.field-check span { margin: 0; }

.preview {
  display: flex; align-items: center; gap: 10px;
  border: 1px dashed var(--line); border-radius: 10px;
  padding: 10px 12px; margin-bottom: 14px; background: var(--bg);
}
.preview img { width: 30px; height: 30px; object-fit: contain; border-radius: 6px; }
.preview-text { min-width: 0; }
#preview-name { font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#preview-url { font-size: 12px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }

/* 分组管理 */
.group-list { list-style: none; margin: 0 0 12px; padding: 0; max-height: 260px; overflow: auto; }
.group-list li {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 8px;
}
.group-list li:hover { background: var(--card-hover); }
.group-list .g-name { flex: 1; font-size: 14px; }
.group-list .g-count { font-size: 12px; color: var(--text-2); }
.group-list .g-rename, .group-list .g-del, .group-list .g-move {
  border: none; background: transparent; color: var(--text-2);
  padding: 3px 6px; border-radius: 6px; font-size: 13px;
}
.group-list .g-move:hover { color: var(--primary); }
.group-list .g-move:disabled { opacity: .3; cursor: default; }
.group-list .g-rename:hover { color: var(--primary); }
.group-list .g-del:hover { color: var(--danger); }
.inline-add { display: flex; gap: 8px; }
.inline-add input {
  flex: 1; padding: 9px 12px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); outline: none;
}
.inline-add input:focus { border-color: var(--primary); }

/* ============ 菜单 ============ */
.menu {
  position: fixed; z-index: 100; min-width: 180px;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 10px; box-shadow: var(--shadow-lg);
  padding: 6px; display: flex; flex-direction: column;
}
.menu-item {
  border: none; background: transparent; color: var(--text);
  text-align: left; padding: 9px 12px; border-radius: 7px; font-size: 14px;
}
.menu-item:hover { background: var(--card-hover); }
.menu-item.danger { color: var(--danger); }
.menu-item.danger:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); }

/* ============ Toast ============ */
.toast {
  position: fixed; left: 50%; bottom: 34px; translate: -50% 0; z-index: 200;
  background: var(--text); color: var(--bg);
  padding: 10px 18px; border-radius: 999px; font-size: 13.5px;
  box-shadow: var(--shadow-lg);
  animation: toast-in .25s ease;
}
@keyframes toast-in { from { opacity: 0; translate: -50% 12px; } }

/* ============ 响应式 ============ */
@media (max-width: 640px) {
  .topbar-inner { flex-wrap: wrap; gap: 10px; }
  .search-wrap { order: 3; max-width: none; flex-basis: 100%; }
  .btn-primary span { display: none; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .card-tools { opacity: 1; }
}