:root {
  color-scheme: light;
  --ink: #1f2529;
  --muted: #687178;
  --sidebar: #29343a;
  --sidebar-logo: #202a2f;
  --sidebar-hover: #354249;
  --nav-active: #e8ece9;
  --paper: #f4f5f3;
  --panel: #ffffff;
  --wash: #eef1ef;
  --line: #dfe3e5;
  --accent: #b95732;
  --accent-dark: #8e3e24;
  --accent-wash: #f7ebe5;
  --success: #2f765c;
  --danger: #a33f3b;
  --warning: #a56b2a;
  --sidebar-width: 216px;
  --card-radius: 14px;
  --input-radius: 10px;
  --button-radius: 9px;
  font-family: "Avenir Next", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-size: 14px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.compact-control { width:min(280px, 45vw); min-height:38px; }
.content-note { color:var(--muted); line-height:1.6; }
.inline-form { display:grid; grid-template-columns:minmax(220px,1fr) auto; gap:10px; align-items:center; }
.pairing-result { display:flex; flex-wrap:wrap; align-items:center; gap:12px; margin-top:14px; padding:14px 16px; border:1px solid #d5dfda; border-radius:var(--input-radius); background:#eef6f2; }
.pairing-code { color:var(--success); font-family:"SFMono-Regular",Consolas,monospace; font-size:20px; letter-spacing:.08em; }
.data-list { display:grid; border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.data-row { display:grid; grid-template-columns:minmax(0,1fr) 120px auto; gap:14px; align-items:center; min-height:66px; padding:11px 14px; border-top:1px solid #edf0ef; }
.data-row:first-child { border-top:0; }
.data-row:hover { background:#fafbf9; }
.data-row-primary { min-width:0; display:grid; gap:4px; }
.data-row-primary a,.data-row-primary strong { overflow:hidden; color:var(--ink); font-weight:650; text-overflow:ellipsis; white-space:nowrap; }
.data-row-primary a { color:var(--accent-dark); text-decoration:none; }
.data-row-note { color:var(--muted); font-size:11px; }
.data-row-metric { color:var(--muted); font-size:12px; text-align:right; }
.details-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:10px; }
.detail-item { display:grid; gap:5px; min-width:0; padding:12px; border:1px solid var(--line); border-radius:10px; background:var(--wash); }
.detail-label { color:var(--muted); font-size:11px; }
.detail-value { overflow-wrap:anywhere; font-size:13px; }
.status-badge { justify-self:start; padding:4px 8px; border-radius:999px; color:var(--muted); background:var(--wash); font-size:11px; font-weight:700; }
.status-badge[data-tone="success"] { color:var(--success); background:#e6f2ed; }
.status-badge[data-tone="danger"] { color:var(--danger); background:#fbefee; }
.status-badge[data-tone="warning"] { color:var(--warning); background:#f8f0e5; }
.stats-summary { display:flex; flex-wrap:wrap; gap:10px; margin-bottom:14px; }
.stat-item { min-width:120px; padding:10px 12px; border:1px solid var(--line); border-radius:10px; background:var(--wash); }
.stat-label { display:block; color:var(--muted); font-size:10px; }
.stat-value { display:block; margin-top:3px; font-size:18px; }
.pagination { display:flex; justify-content:flex-end; gap:8px; margin-top:14px; }
.empty-state,.loading-state { padding:40px 18px; color:var(--muted); text-align:center; }
@media (max-width:720px) { .inline-form { grid-template-columns:1fr; } .data-row { grid-template-columns:minmax(0,1fr) auto; } .data-row-metric { display:none; } }

.button-primary,
.button-secondary,
.button-danger {
  min-height: 38px;
  padding: 0 15px;
  border-radius: var(--button-radius);
  font-weight: 650;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button-primary {
  color: #ffffff;
  background: var(--accent);
}

.button-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.button-secondary {
  color: var(--accent-dark);
  background: var(--panel);
  box-shadow: inset 0 0 0 1px #c78a74;
}

.button-secondary:hover {
  background: var(--accent-wash);
}

.button-danger {
  color: var(--danger);
  background: #fbefee;
  box-shadow: inset 0 0 0 1px #e3b5b1;
}

.form-control {
  width: 100%;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--input-radius);
  color: var(--ink);
  background: #ffffff;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(185, 87, 50, 0.12);
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.auth-page {
  background: var(--paper);
}

.auth-layout {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 28px;
}

.auth-card {
  width: min(100%, 420px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: var(--panel);
  box-shadow: 0 18px 48px rgba(31, 37, 41, 0.09);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 18px 20px;
  color: #ffffff;
  background: var(--sidebar-logo);
}

.auth-brand-icon,
.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 9px;
}

.auth-brand-name {
  font-size: 15px;
  font-weight: 650;
}

.auth-card-body {
  padding: 28px;
}

.auth-intro {
  margin: 9px 0 22px;
  color: var(--muted);
  line-height: 1.6;
}

.form-stack {
  display: grid;
  gap: 8px;
}

.form-stack label {
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.form-stack .button-primary {
  margin-top: 5px;
}

.form-error {
  min-height: 18px;
  margin: 3px 0 0;
  color: var(--danger);
  font-size: 12px;
}

.app-layout {
  display: grid;
  min-height: 100vh;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

.sidebar {
  display: flex;
  position: sticky;
  top: 0;
  flex-direction: column;
  width: var(--sidebar-width);
  height: 100vh;
  border-right: 1px solid #394247;
  background: var(--sidebar);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 69px;
  padding: 18px 16px;
  border-bottom: 1px solid #394247;
  color: #ffffff;
  background: var(--sidebar-logo);
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
}

.app-nav {
  display: grid;
  gap: 2px;
  padding: 14px 10px;
}

.app-nav a {
  min-height: 38px;
  padding: 10px 11px 10px 8px;
  border-left: 3px solid transparent;
  border-radius: var(--button-radius);
  color: #c3ccce;
  font-size: 13px;
  text-decoration: none;
  transition: background-color 150ms ease, color 150ms ease;
}

.app-nav a:hover {
  color: #ffffff;
  background: var(--sidebar-hover);
}

.app-nav a[aria-current="page"] {
  color: #263238;
  background: var(--nav-active);
  border-left-color: var(--accent);
}

.app-nav a[aria-current="page"]:hover {
  color: #263238;
  background: #f1f3f1;
}

.sidebar-status {
  margin: auto 10px 0;
  padding: 11px;
  border: 1px solid #435158;
  border-radius: 10px;
  color: #c3ccce;
  background: rgba(32, 42, 47, 0.58);
}

.sidebar-status-label {
  display: block;
  color: #879497;
  font-size: 10px;
}

.sidebar-status-value {
  display: block;
  margin-top: 4px;
  font-size: 12px;
}

.sidebar-footer {
  display: grid;
  gap: 8px;
  margin: 12px 10px 14px;
  padding-top: 12px;
  border-top: 1px solid #435158;
}

.session-user {
  overflow: hidden;
  color: #c3ccce;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-footer .button-secondary {
  color: #ffffff;
  background: transparent;
  box-shadow: inset 0 0 0 1px #536168;
}

.sidebar-footer .button-secondary:hover {
  background: var(--sidebar-hover);
}

.main-panel {
  min-width: 0;
  padding: 22px 36px 48px;
  background: var(--paper);
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  min-height: 64px;
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-header .eyebrow { display:none; }

.page-header-copy {
  min-width: 0;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
}

.page-content {
  min-height: 280px;
}

.content-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  background: var(--panel);
}

.content-card + .content-card {
  margin-top: 14px;
}

.content-card-title {
  margin: 0 0 15px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.button-compact { min-height:34px; padding:0 12px; white-space:nowrap; }
.icon-button { width:32px; min-height:32px; padding:0; color:#a8afb2; background:transparent; font-size:20px; }
.row-checkbox { width:16px; height:16px; margin:0; accent-color:var(--accent); }

.backlink-management-card { padding:20px 22px 22px; }
.backlink-toolbar { display:grid; grid-template-columns:minmax(180px,1fr) minmax(150px,180px) minmax(150px,180px) auto auto auto; gap:10px; align-items:center; margin-bottom:18px; padding-bottom:18px; border-bottom:1px solid var(--line); }
.backlink-search,.backlink-filter-control { min-height:42px; }
.backlink-action-group { display:flex; align-items:center; gap:7px; }
.backlink-action-group + .backlink-action-group { padding-left:10px; border-left:1px solid var(--line); }
.backlink-action-label { color:var(--muted); font-size:11px; font-weight:700; white-space:nowrap; }
.backlink-summary-strip { margin-bottom:14px; padding:11px 14px; border:1px solid #d9dfdc; border-radius:10px; color:var(--muted); background:#eef1ef; font-variant-numeric:tabular-nums; }
.backlink-list { overflow:hidden; border:1px solid var(--line); border-radius:12px; background:#fff; }
.backlink-list-header { display:grid; grid-template-columns:minmax(0,1fr) auto 124px; gap:18px; align-items:center; min-height:58px; padding:10px 16px; color:var(--muted); background:#eef1ef; }
.backlink-list-header label { display:flex; align-items:center; gap:3px; }
.backlink-list-count { line-height:1.3; text-align:right; font-variant-numeric:tabular-nums; }
.backlink-list-row { display:grid; grid-template-columns:18px minmax(0,1fr) 220px auto; gap:14px; align-items:center; min-height:68px; padding:10px 16px; border-top:1px solid #edf0ef; }
.backlink-list-row:hover { background:#fafbf9; }
.backlink-row-primary { display:grid; min-width:0; gap:4px; }
.backlink-row-primary a { overflow:hidden; color:var(--accent-dark); text-decoration:none; text-overflow:ellipsis; white-space:nowrap; }
.backlink-row-note { overflow:hidden; color:#9aa1a4; font-size:11px; text-overflow:ellipsis; white-space:nowrap; }
.backlink-row-state { color:var(--ink); font-size:12px; line-height:1.55; font-variant-numeric:tabular-nums; }
.state-success { color:var(--success); }
.state-danger { color:var(--danger); }
.backlink-row-actions { display:flex; align-items:center; gap:5px; }
.backlink-pagination { display:flex; justify-content:flex-end; gap:8px; padding:12px 16px; border-top:1px solid var(--line); background:#fafbf9; }

.directory-summary-bar { display:flex; align-items:center; justify-content:space-between; gap:18px; min-height:66px; margin-bottom:18px; padding:14px 18px; border:1px solid var(--line); border-radius:var(--card-radius); background:#fff; }
.directory-summary-count { display:flex; align-items:baseline; gap:7px; color:var(--muted); }
.directory-summary-count strong { color:var(--ink); font-size:26px; font-variant-numeric:tabular-nums; }
.directory-summary-actions { display:flex; gap:8px; }
.directory-filters { display:grid; grid-template-columns:1.7fr 1fr 1fr; gap:12px; margin-bottom:16px; }
.directory-filter-field { display:grid; gap:7px; color:var(--muted); font-size:12px; font-weight:650; }
.directory-groups { display:grid; gap:12px; }
.directory-group { overflow:hidden; border:1px solid var(--line); border-radius:var(--card-radius); background:#fff; }
.directory-group-heading { display:grid; width:100%; min-height:58px; grid-template-columns:minmax(0,1fr) auto auto; gap:12px; align-items:center; padding:13px 18px; color:var(--ink); background:#eef1ef; text-align:left; }
.directory-group-heading strong { font-size:14px; }
.directory-group-count { min-width:30px; padding:3px 8px; border:1px solid #dfb9a9; border-radius:999px; color:var(--accent-dark); background:#fff; text-align:center; font-size:11px; font-variant-numeric:tabular-nums; }
.directory-group-chevron { color:var(--muted); transition:transform 160ms ease; }
.directory-group.is-collapsed .directory-group-chevron { transform:rotate(180deg); }
.directory-group.is-collapsed .directory-group-rows { display:none; }
.directory-list-row { display:grid; grid-template-columns:18px minmax(0,1fr) 150px 40px; gap:16px; align-items:center; min-height:82px; padding:12px 18px; border-top:1px solid #edf0ef; }
.directory-list-row:hover { background:#fafbf9; }
.directory-row-primary { display:grid; min-width:0; gap:3px; }
.directory-row-primary strong { font-size:14px; }
.directory-domain { color:var(--accent-dark); font-size:12px; }
.directory-note { overflow:hidden; color:var(--muted); font-size:11px; text-overflow:ellipsis; white-space:nowrap; }
.directory-row-meta { display:grid; justify-items:start; gap:7px; }
.directory-date { color:var(--muted); font-size:11px; font-variant-numeric:tabular-nums; }
.directory-open-button { display:grid; width:36px; height:36px; place-items:center; border:1px solid #e6c3b4; border-radius:9px; color:var(--accent-dark); background:var(--accent-wash); font-size:19px; text-decoration:none; }

.shell-placeholder {
  max-width: 760px;
}

.shell-placeholder p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.filter-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fafbf9;
}

.stats-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.stat-item {
  padding: 10px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--wash);
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 10px;
}

.stat-value {
  display: block;
  margin-top: 3px;
  font-size: 17px;
  font-weight: 700;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--muted);
  background: var(--wash);
  font-size: 11px;
  font-weight: 650;
}

.status-badge[data-tone="success"] {
  color: var(--success);
  background: #e8f1ed;
}

.status-badge[data-tone="danger"] {
  color: var(--danger);
  background: #fbefee;
}

.status-badge[data-tone="warning"] {
  color: var(--warning);
  background: #f8f0e5;
}

.pagination {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

.empty-state,
.loading-state {
  padding: 34px 20px;
  color: var(--muted);
  text-align: center;
}

.toast-region {
  display: grid;
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 30;
  gap: 8px;
  width: min(340px, calc(100vw - 40px));
}

.toast {
  padding: 11px 13px;
  border-radius: 10px;
  color: #ffffff;
  background: var(--sidebar);
  box-shadow: 0 10px 28px rgba(31, 37, 41, 0.2);
}

.toast[data-tone="success"] {
  background: var(--success);
}

.toast[data-tone="danger"] {
  background: var(--danger);
}

@media (max-width: 760px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    width: 100%;
    height: auto;
  }

  .app-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sidebar-status {
    margin-top: 2px;
  }

  .main-panel {
    padding: 20px 18px 36px;
  }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 1280px) {
  .backlink-toolbar { grid-template-columns:repeat(3,minmax(160px,1fr)); }
  .backlink-action-group + .backlink-action-group { padding-left:0; border-left:0; }
}

@media (max-width: 900px) {
  .backlink-toolbar,.directory-filters { grid-template-columns:1fr; }
  .backlink-list-row { grid-template-columns:18px minmax(0,1fr); }
  .backlink-row-state,.backlink-row-actions { grid-column:2; }
  .directory-list-row { grid-template-columns:18px minmax(0,1fr) 40px; }
  .directory-row-meta { grid-column:2; }
  .directory-open-button { grid-column:3; grid-row:1 / span 2; }
}