/* ============ DevBox 工具箱样式 ============ */
:root {
  --bg: #f5f6f8;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --text: #1a1d24;
  --text-2: #5c6470;
  --border: #e3e6eb;
  --primary: #3b82f6;
  --primary-hover: #2f6fe0;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --sidebar-bg: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 14px rgba(0,0,0,.05);
  --radius: 12px;
}
[data-theme="dark"] {
  --bg: #0f1117;
  --bg-card: #171a21;
  --bg-input: #11141a;
  --text: #e7eaf0;
  --text-2: #9aa3b2;
  --border: #262b36;
  --primary: #4d8dff;
  --primary-hover: #6ba1ff;
  --sidebar-bg: #12151b;
  --shadow: 0 1px 3px rgba(0,0,0,.4), 0 4px 14px rgba(0,0,0,.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background .25s, color .25s;
}
.hidden { display: none !important; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 12px;
  height: 56px; padding: 0 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand-logo { font-size: 22px; }
.brand-name { font-size: 18px; font-weight: 700; letter-spacing: .5px; }
.brand-sub { font-size: 12px; color: var(--text-2); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.search-wrap { position: relative; }
.search-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  color: var(--text-2); pointer-events: none;
}
.search-wrap input {
  width: 220px; height: 34px; padding: 0 12px 0 32px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-input); color: var(--text);
  font-size: 13px; outline: none; transition: border-color .2s, width .2s;
}
.search-wrap input:focus { border-color: var(--primary); width: 260px; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-input); color: var(--text); cursor: pointer; transition: all .2s;
}
.icon-btn:hover { border-color: var(--primary); color: var(--primary); }
.menu-btn { display: none; }
.icon-sun, .icon-moon { display: block; }
[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: calc(100vh - 56px); }
.sidebar {
  width: 232px; flex-shrink: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 14px 10px;
  display: flex; flex-direction: column;
  position: sticky; top: 56px; height: calc(100vh - 56px); overflow-y: auto;
}
.sidebar nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px;
  color: var(--text-2); text-decoration: none; font-size: 14px;
  cursor: pointer; border: none; background: none; text-align: left; width: 100%;
  transition: background .15s, color .15s;
}
.nav-item:hover { background: rgba(59,130,246,.08); color: var(--text); }
.nav-item.active { background: var(--primary); color: #fff; font-weight: 600; }
.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; }
.nav-group-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  color: var(--text-2); opacity: .7; padding: 12px 12px 4px; letter-spacing: .5px;
}
.sidebar-footer {
  padding: 12px; font-size: 11px; color: var(--text-2);
  display: flex; flex-direction: column; gap: 2px; border-top: 1px solid var(--border);
}
.overlay { display: none; }

.main { flex: 1; padding: 24px 28px 40px; max-width: 1100px; margin: 0 auto; width: 100%; min-width: 0; }

/* ---------- 页面 ---------- */
.page { display: none; animation: fadein .25s ease; }
.page.active { display: block; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.page-desc { color: var(--text-2); font-size: 14px; margin-bottom: 20px; }

/* 工具网格（首页） */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.tool-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; cursor: pointer; transition: all .2s; box-shadow: var(--shadow);
}
.tool-card:hover { transform: translateY(-3px); border-color: var(--primary); }
.tool-card .tc-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px; font-size: 20px;
  background: rgba(59,130,246,.12); margin-bottom: 10px;
}
.tool-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.tool-card p { font-size: 12.5px; color: var(--text-2); }

/* ---------- 通用组件 ---------- */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow);
}
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 12px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.btn {
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all .15s; white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.ghost { background: transparent; }
.btn.ghost:hover { border-color: var(--danger); color: var(--danger); }
.btn.toggle { display: inline-flex; align-items: center; gap: 6px; user-select: none; }
.btn.toggle input { accent-color: var(--primary); }

textarea, input[type="text"], input[type="number"], input[type="datetime-local"], select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-input); color: var(--text); font-size: 13.5px;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
  outline: none; transition: border-color .2s; resize: vertical;
}
textarea:focus, input:focus, select:focus { border-color: var(--primary); }
textarea { min-height: 200px; line-height: 1.55; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pane-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 600; color: var(--text-2); margin-bottom: 6px;
}
.stats { font-weight: 400; font-size: 11.5px; opacity: .8; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 12px; }
.row > input, .row > select { flex: 1; min-width: 120px; width: auto; }

.msg { padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-top: 12px; }
.msg.error { background: rgba(239,68,68,.1); color: var(--danger); border: 1px solid rgba(239,68,68,.3); }
.msg.info { background: rgba(59,130,246,.1); color: var(--primary); border: 1px solid rgba(59,130,246,.25); }

.result-table { font-size: 13.5px; }
.result-row {
  display: flex; justify-content: space-between; gap: 14px;
  padding: 8px 2px; border-bottom: 1px dashed var(--border);
}
.result-row:last-child { border-bottom: none; }
.result-row .rk { color: var(--text-2); flex-shrink: 0; }
.result-row .rv { font-family: ui-monospace, Consolas, monospace; word-break: break-all; text-align: right; }
.copy-btn {
  border: none; background: none; color: var(--primary); cursor: pointer;
  font-size: 12px; padding: 2px 6px; border-radius: 4px; flex-shrink: 0;
}
.copy-btn:hover { background: rgba(59,130,246,.12); }

/* 首页导航下拉分组 / 遮罩复用 */

/* ---------- 时间戳 ---------- */
.now-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.now-item {
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 2px;
}
.now-label { font-size: 11.5px; color: var(--text-2); }
.now-item strong { font-family: ui-monospace, Consolas, monospace; font-size: 14px; word-break: break-all; }

/* ---------- 颜色 ---------- */
input[type="color"] {
  width: 64px; height: 44px; padding: 2px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--bg-input); cursor: pointer; flex-shrink: 0;
}
.color-preview {
  height: 80px; border-radius: 10px; margin-top: 14px;
  border: 1px solid var(--border); transition: background .2s;
}
.gradient-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.gradient-item { height: 64px; border-radius: 10px; cursor: pointer; transition: transform .15s; border: 1px solid var(--border); }
.gradient-item:hover { transform: scale(1.03); }

/* ---------- 正则 ---------- */
.regex-slash { font-size: 22px; color: var(--text-2); font-family: monospace; }
.flags-input { max-width: 80px; flex: 0 0 80px; }
#regexText { min-height: 110px; margin-bottom: 12px; }
.highlight-box {
  background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; font-family: ui-monospace, Consolas, monospace; font-size: 13.5px;
  white-space: pre-wrap; word-break: break-all; min-height: 60px; line-height: 1.8;
}
mark {
  background: rgba(245,158,11,.35); color: var(--text);
  border-radius: 3px; padding: 0 1px;
  box-shadow: inset 0 -2px 0 rgba(245,158,11,.6);
}

/* ---------- 密码 ---------- */
.pwd-output {
  font-family: ui-monospace, Consolas, monospace; font-size: 18px;
  background: var(--bg-input); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; text-align: center; word-break: break-all; margin-bottom: 14px;
  min-height: 58px; display: flex; align-items: center; justify-content: center;
  user-select: all;
}
.form-row { margin: 14px 0 6px; }
.form-row label { font-size: 13px; color: var(--text-2); display: block; margin-bottom: 6px; }
.form-row output { color: var(--primary); font-weight: 700; }
input[type="range"] { width: 100%; accent-color: var(--primary); }
.checks { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 12px 0; }
.check { display: flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }
.check input { accent-color: var(--primary); }
.strength { height: 6px; border-radius: 3px; background: var(--border); overflow: hidden; }
.strength i { display: block; height: 100%; width: 0; border-radius: 3px; transition: all .3s; }

/* ---------- UUID ---------- */
.list-box {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 14px; box-shadow: var(--shadow);
}
.list-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 0; border-bottom: 1px dashed var(--border);
}
.list-item:last-child { border-bottom: none; }
.list-item code { font-size: 13.5px; word-break: break-all; }

/* ---------- 换算 ---------- */
.cv-arrow { font-size: 18px; color: var(--text-2); }
#cvFrom, #cvTo { flex: 1 1 140px; width: auto; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg);
  padding: 10px 22px; border-radius: 8px; font-size: 13.5px;
  opacity: 0; pointer-events: none; transition: all .3s; z-index: 999;
  max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .main { padding: 16px 14px 32px; }
  .page-title { font-size: 19px; }
  .search-wrap input { width: 130px; }
  .search-wrap input:focus { width: 160px; }
  .brand-sub { display: none; }

  .menu-btn { display: inline-flex; }
  .sidebar {
    position: fixed; left: 0; top: 56px; bottom: 0; height: auto; z-index: 98;
    transform: translateX(-100%); transition: transform .28s ease;
    width: 250px; box-shadow: 6px 0 20px rgba(0,0,0,.15);
  }
  .sidebar.open { transform: translateX(0); }
  .overlay {
    display: block; position: fixed; inset: 56px 0 0 0; z-index: 97;
    background: rgba(0,0,0,.4); opacity: 0; pointer-events: none; transition: opacity .28s;
  }
  .overlay.show { opacity: 1; pointer-events: auto; }
}
@media (max-width: 480px) {
  .search-wrap { display: none; }
  .tool-grid { grid-template-columns: 1fr; }
  .now-grid { grid-template-columns: 1fr 1fr; }
  .toolbar { gap: 6px; }
  .btn { padding: 7px 12px; font-size: 12.5px; }
}