/* ===========================================================
   管理后台
   =========================================================== */

.ad-body { min-height: 100vh; }

/* ---------------- 登录 ---------------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px; position: relative; z-index: 1;
}
.login-card {
  width: 100%; max-width: 380px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-2); border-radius: 18px; padding: 34px 30px;
  box-shadow: var(--shadow);
}
.login-card .brand { display: flex; align-items: center; gap: 9px; margin-bottom: 22px; }
.login-card h1 { font-size: 20px; margin: 0 0 6px; letter-spacing: -.02em; }
.login-card .sub { font-size: 12.5px; color: var(--dim); margin: 0 0 24px; }

/* ---------------- 表单控件 ---------------- */
.field { margin-bottom: 16px; }
.field > label {
  display: block; font-size: 11.5px; color: var(--muted);
  letter-spacing: .04em; margin-bottom: 7px;
}
.field .hint { font-size: 11px; color: var(--dim); margin-top: 5px; }

.input, .textarea, .select {
  width: 100%; background: #0b0e13; border: 1px solid var(--line-2);
  border-radius: 10px; padding: 10px 13px; color: var(--text);
  font-size: 13.5px; outline: none; font-family: inherit;
  transition: border-color .15s, background .15s;
}
.input:focus, .textarea:focus, .select:focus {
  border-color: rgba(216,255,62,.5); background: #0d1015;
}
.input::placeholder, .textarea::placeholder { color: var(--dim); }
.textarea { resize: vertical; line-height: 1.7; min-height: 90px; }
.textarea.md { font-family: var(--mono); font-size: 12.8px; min-height: 420px; line-height: 1.8; }
.select { appearance: none; cursor: pointer; }

.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

.check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); cursor: pointer; }
.check input { width: 15px; height: 15px; accent-color: var(--lime); cursor: pointer; }

/* ---------------- 外壳 ---------------- */
.ad-shell { position: relative; z-index: 1; }
.ad-top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7,8,10,.86); backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.ad-top-inner {
  max-width: 1400px; margin: 0 auto; padding: 0 24px; height: 62px;
  display: flex; align-items: center; gap: 16px;
}
.ad-tabs { display: flex; gap: 2px; margin-left: 8px; }
.ad-tabs button {
  padding: 8px 15px; border-radius: 9px; border: 0; background: transparent;
  color: var(--text-2); font-size: 13px; cursor: pointer; transition: .15s;
}
.ad-tabs button:hover { background: rgba(255,255,255,.05); color: var(--text); }
.ad-tabs button.on { background: rgba(216,255,62,.12); color: var(--lime); font-weight: 600; }
.ad-top-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.ad-user { font-size: 12.5px; color: var(--muted); font-family: var(--mono); }

.ad-main { max-width: 1400px; margin: 0 auto; padding: 28px 24px 80px; }

/* ---------------- 概览卡 ---------------- */
.stat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 28px; }
.stat-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px;
}
.stat-card .k { font-size: 11.5px; color: var(--dim); letter-spacing: .05em; }
.stat-card .v {
  font-family: var(--mono); font-size: 26px; font-weight: 600;
  margin-top: 8px; letter-spacing: -.03em;
}
.stat-card .u { font-size: 11px; color: var(--dim); margin-left: 4px; font-family: var(--sans); }

/* ---------------- 工具条 ---------------- */
.ad-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.ad-bar .grow { flex: 1; }
.ad-bar h2 { font-size: 17px; margin: 0; letter-spacing: -.01em; }
.ad-bar .input, .ad-bar .select { width: auto; min-width: 180px; padding: 8px 12px; font-size: 12.5px; }

/* ---------------- 表格 ---------------- */
.ad-table-wrap {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden;
}
.ad-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ad-table thead th {
  text-align: left; font-size: 11px; letter-spacing: .06em; color: var(--dim);
  font-weight: 500; padding: 12px 16px; border-bottom: 1px solid var(--line-2);
  background: var(--panel-2); white-space: nowrap; text-transform: uppercase;
  font-family: var(--mono);
}
.ad-table tbody td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.ad-table tbody tr:last-child td { border-bottom: 0; }
.ad-table tbody tr:hover td { background: rgba(255,255,255,.018); }
.ad-table .t-title { color: var(--text); font-weight: 550; max-width: 380px; }
.ad-table .t-title small { display: block; color: var(--dim); font-size: 11px; font-weight: 400; margin-top: 3px; font-family: var(--mono); }
.ad-table .actions { display: flex; gap: 6px; justify-content: flex-end; }

.pill {
  display: inline-block; font-size: 10.5px; font-family: var(--mono);
  padding: 2px 8px; border-radius: 999px; letter-spacing: .03em;
}
.pill.pub { color: #8fe388; background: rgba(143,227,136,.1); }
.pill.draft { color: #ffd166; background: rgba(255,209,102,.1); }
.pill.arch { color: var(--dim); background: rgba(255,255,255,.05); }
.pill.feat { color: var(--lime); background: rgba(216,255,62,.1); }

.btn-xs {
  padding: 5px 11px; border-radius: 7px; border: 1px solid var(--line-2);
  background: transparent; color: var(--text-2); font-size: 11.5px; cursor: pointer;
  transition: .15s; white-space: nowrap;
}
.btn-xs:hover { border-color: var(--lime); color: var(--lime); }
.btn-xs.danger:hover { border-color: #ff6070; color: #ff6070; }

/* ---------------- 编辑器抽屉 ---------------- */
.ad-drawer {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(0,0,0,.62); backdrop-filter: blur(6px);
}
.ad-drawer.open { display: block; }
.ad-drawer-inner {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(1100px, 94vw);
  background: var(--bg-2); border-left: 1px solid var(--line-2);
  display: flex; flex-direction: column; animation: slideIn .22s ease;
}
@keyframes slideIn { from { transform: translateX(24px); opacity: .6; } to { transform: none; opacity: 1; } }

.ad-drawer-head {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 22px; border-bottom: 1px solid var(--line);
}
.ad-drawer-head h3 { font-size: 15px; margin: 0; }
.ad-drawer-head .grow { flex: 1; }
.ad-drawer-body { flex: 1; overflow-y: auto; padding: 22px; }
.ad-drawer-foot {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-top: 1px solid var(--line); background: var(--panel);
}
.ad-drawer-foot .grow { flex: 1; }

.edit-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.preview-pane {
  background: #0b0e13; border: 1px solid var(--line-2); border-radius: 10px;
  padding: 18px 20px; overflow-y: auto; max-height: 560px; min-height: 420px;
  font-size: 13.5px;
}
.preview-pane h2 { font-size: 17px; margin: 18px 0 8px; border-left: 2px solid var(--lime); padding-left: 9px; }
.preview-pane h3 { font-size: 14.5px; margin: 16px 0 7px; }
.preview-pane p { color: var(--text-2); line-height: 1.8; margin: 10px 0; font-size: 13px; }
.preview-pane ul, .preview-pane ol { padding-left: 20px; }
.preview-pane li { color: var(--text-2); font-size: 13px; line-height: 1.75; margin: 4px 0; }
.preview-pane table { width: 100%; border-collapse: collapse; font-size: 12px; margin: 14px 0; }
.preview-pane th, .preview-pane td { border: 1px solid var(--line); padding: 7px 9px; text-align: left; color: var(--text-2); }
.preview-pane th { background: var(--panel); color: var(--muted); font-weight: 500; }
.preview-pane code { font-family: var(--mono); font-size: 11.5px; background: #161b24; padding: 1px 5px; border-radius: 4px; color: var(--lime); }
.preview-pane pre { background: #080a0e; padding: 12px; border-radius: 8px; overflow-x: auto; font-size: 11.5px; }
.preview-pane blockquote { border-left: 2px solid var(--line-2); padding-left: 12px; color: var(--dim); margin: 12px 0; }

/* ---------------- 提示条 ---------------- */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(16px);
  background: var(--panel-3); border: 1px solid var(--line-2); border-radius: 11px;
  padding: 12px 20px; font-size: 13px; color: var(--text); z-index: 400;
  opacity: 0; pointer-events: none; transition: .22s; box-shadow: var(--shadow);
  max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.ok { border-color: rgba(143,227,136,.45); }
.toast.err { border-color: rgba(255,96,112,.5); }

.ad-empty { padding: 60px 20px; text-align: center; color: var(--dim); font-size: 13px; }

@media (max-width: 1080px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .edit-split { grid-template-columns: 1fr; }
  .preview-pane { max-height: 340px; min-height: 200px; }
}
@media (max-width: 760px) {
  .ad-top-inner { padding: 0 14px; gap: 8px; }
  .ad-tabs button { padding: 7px 10px; font-size: 12px; }
  .ad-main { padding: 18px 14px 60px; }
  .ad-user { display: none; }
  .row-2, .row-3 { grid-template-columns: 1fr; }
  .ad-table .t-title { max-width: 160px; }
  .ad-drawer-inner { width: 100%; }
}