:root {
  --canvas: #fafaf9;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --ink: #242424;
  --muted: #737373;
  --line: #e5e5e5;
  --line-soft: #f0f0f0;
  --accent: #c84b2b;
  --accent-dark: #a83b21;
  --accent-soft: #fff3ee;
  --green: #367451;
  --shadow: 0 12px 34px rgba(30, 30, 30, 0.08);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--canvas);
  font-synthesis: none;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--canvas);
}

button, input, textarea { font: inherit; }
button { color: inherit; }
a { color: inherit; }

.center-shell {
  min-height: 100vh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 18px;
  padding: 32px 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: inherit;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-large { font-size: 28px; }

.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  font-family: inherit;
  font-size: 20px;
  box-shadow: none;
}

.brand-large .brand-mark { width: 42px; height: 42px; font-size: 25px; }

.auth-card {
  width: min(100%, 440px);
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.auth-card h1 {
  margin: 12px 0 8px;
  font-size: 28px;
  letter-spacing: -0.025em;
}

.auth-description { color: var(--muted); line-height: 1.7; margin: 0 0 26px; }
.auth-footnote { color: var(--muted); font-size: 13px; }

.eyebrow {
  margin: 22px 0 0;
  color: var(--accent);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.16em;
}

.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 650;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.button:hover { border-color: var(--accent); }
.button:disabled { opacity: 0.55; cursor: wait; }
.button-wide { width: 100%; min-height: 48px; }
.button-primary { color: #fff; background: var(--accent); }
.button-primary:hover { background: var(--accent-dark); }
.button-secondary { background: var(--surface-strong); border-color: var(--line); }
.button-ghost { background: transparent; border-color: var(--line); }

.setup-help {
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 9px;
  background: #fafafa;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.setup-help p { margin: 0 0 7px; }
.setup-help p:last-child { margin: 7px 0 0; }
.setup-help code { display: block; padding: 8px 10px; border-radius: 6px; color: var(--ink); background: #f1f1f1; }
.form-error { min-height: 20px; margin: 12px 0 0; color: #ad2d23; font-size: 13px; }
.muted { color: var(--muted); }

.app-shell { min-height: 100vh; }

.topbar {
  height: 64px;
  display: grid;
  grid-template-columns: 208px minmax(280px, 640px) 1fr;
  align-items: center;
  gap: 20px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  position: sticky;
  top: 0;
  z-index: 10;
}

.search-box {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
}

.search-icon { color: var(--muted); font-size: 21px; transform: rotate(-15deg); }
.search-box input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; }
.search-box kbd { padding: 1px 6px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); background: var(--canvas); font-size: 11px; }

.topbar-actions { justify-self: end; display: flex; align-items: center; gap: 10px; }
.icon-button {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
  cursor: pointer;
}
.account-button { border-radius: 50%; color: #fff; background: #302f2a; font-size: 13px; }

.workspace { display: grid; grid-template-columns: 208px minmax(0, 1fr); min-height: calc(100vh - 64px); }
.sidebar { padding: 22px 16px 18px 24px; border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.sidebar nav { display: grid; gap: 5px; }
.nav-item {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 0 12px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.nav-item:hover { background: #f5f5f5; }
.nav-item.active { color: var(--accent-dark); background: var(--accent-soft); font-weight: 650; }
.nav-icon { width: 18px; color: var(--muted); text-align: center; }
.nav-item.active .nav-icon { color: var(--accent); }
.sidebar-note { margin-top: auto; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; line-height: 1.4; }
.status-dot { width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: var(--green); }

.content { width: min(100%, 960px); padding: 32px 42px 64px; }
.content-heading { min-height: 72px; display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 12px; }
.content-heading .eyebrow { margin-top: 0; }
.content-heading h1 { margin: 6px 0 0; font-size: 28px; letter-spacing: -0.025em; }
.content-heading .muted { margin: 0 0 6px; font-size: 13px; }

.bookmark-list { border-top: 1px solid var(--line); }
.bulk-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0 0 12px;
  padding: 10px 12px;
  border: 1px solid #e6c7b9;
  border-radius: 8px;
  background: var(--accent-soft);
}
.bulk-bar strong { flex: 0 0 auto; color: var(--accent-dark); font-size: 12px; }
.bulk-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 2px; }
.bookmark-row {
  display: grid;
  grid-template-columns: 24px 32px minmax(0, 1fr) auto;
  gap: 10px;
  padding: 16px 6px 16px 0;
  border-bottom: 1px solid var(--line);
  transition: background 120ms ease;
}
.bookmark-row:hover { background: #fdfdfd; }
.select-bookmark { align-self: start; margin-top: 2px; accent-color: var(--accent); cursor: pointer; }
.star-button { align-self: start; border: 0; background: transparent; color: #aaa59a; cursor: pointer; font-size: 20px; line-height: 1; }
.star-button.active { color: #d69b24; }
.bookmark-title { display: inline; text-decoration: none; font-size: 16px; font-weight: 650; line-height: 1.4; }
.bookmark-title:hover { color: var(--accent); }
.bookmark-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 7px; color: var(--muted); font-size: 12px; }
.bookmark-domain { color: var(--green); font-weight: 650; }
.bookmark-note { margin: 8px 0 0; color: #666; line-height: 1.5; font-size: 13px; white-space: pre-wrap; }
.badge { padding: 2px 6px; border-radius: 5px; background: var(--accent-soft); color: var(--accent-dark); font-size: 11px; }
.row-actions { display: flex; align-items: start; gap: 4px; opacity: 0; transition: opacity 120ms ease; }
.bookmark-row:hover .row-actions, .row-actions:focus-within { opacity: 1; }
.text-button { padding: 5px 7px; border: 0; border-radius: 6px; color: var(--muted); background: transparent; cursor: pointer; font-size: 12px; }
.text-button:hover { color: var(--ink); background: var(--line-soft); }
.text-button.danger:hover { color: #ad2d23; }

.empty-state { padding: 80px 20px; text-align: center; }
.empty-glyph { width: 48px; height: 48px; display: grid; place-items: center; margin: 0 auto 16px; border: 1px solid var(--line); border-radius: 12px; color: var(--accent); background: var(--surface); font-size: 22px; }
.empty-state h2 { margin: 0; font-size: 20px; }
.empty-state p { color: var(--muted); margin: 8px 0 22px; }

.dialog {
  width: min(calc(100% - 32px), 560px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.dialog::backdrop { background: rgba(20, 20, 20, 0.28); }
.dialog form { padding: 24px; }
.dialog-heading { display: flex; align-items: start; justify-content: space-between; margin-bottom: 24px; }
.dialog-heading .eyebrow { margin: 0; }
.dialog-heading h2 { margin: 5px 0 0; font-size: 22px; }
.field { display: grid; gap: 7px; margin-bottom: 17px; font-size: 13px; font-weight: 650; }
.field small { color: var(--muted); font-weight: 400; }
.field input, .field textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  outline: 0;
  color: var(--ink);
  background: var(--surface-strong);
  resize: vertical;
}
.field input:focus, .field textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(200, 75, 43, 0.1); }
.check-row { display: flex; gap: 22px; }
.check { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; }
.check input { accent-color: var(--accent); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 18px; }

.settings-dialog { padding: 24px; }
.settings-dialog .dialog-heading { margin-bottom: 12px; }
.settings-copy { margin: 0 0 20px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.pairing-code-view { display: grid; gap: 5px; margin-bottom: 14px; padding: 16px; border: 1px dashed #e2b9aa; border-radius: 9px; background: var(--accent-soft); }
.pairing-code-view span, .pairing-code-view small { color: var(--muted); font-size: 12px; }
.pairing-code-view strong { color: var(--accent-dark); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 30px; letter-spacing: .12em; }
.settings-section { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.settings-section h3 { margin: 0 0 12px; font-size: 14px; }
.client-list { display: grid; gap: 8px; }
.client-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; padding: 10px; border: 1px solid var(--line-soft); border-radius: 7px; background: var(--surface-strong); }
.client-row strong { display: block; font-size: 13px; }
.client-row small { color: var(--muted); font-size: 11px; }
.client-empty { color: var(--muted); font-size: 13px; }
.storage-stats { color: var(--muted); font-size: 13px; line-height: 1.7; }
.storage-stats strong { color: var(--ink); }
.export-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.export-actions .button { min-height: 36px; text-decoration: none; font-size: 12px; }
.import-dialog { width: min(calc(100% - 32px), 700px); }
.csv-mapping { margin: 4px 0 18px; padding: 14px; border: 1px solid var(--line-soft); border-radius: 8px; background: var(--surface-strong); }
.csv-mapping h3 { margin: 0; font-size: 14px; }
.csv-mapping p { margin: 5px 0 12px; font-size: 12px; }
.mapping-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 12px; }
.mapping-field { display: grid; gap: 5px; color: var(--muted); font-size: 12px; }
.mapping-field select { min-width: 0; padding: 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.import-archive-option { align-items: start; margin-top: 8px; }
.import-archive-option small { display: block; margin-top: 3px; color: var(--muted); font-weight: 400; }
.import-preview { margin-top: 18px; padding: 14px; border: 1px solid var(--line-soft); border-radius: 8px; background: #fafafa; }
.import-summary { margin: 0 0 10px; font-size: 13px; }
.import-preview-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.import-preview-list li { min-width: 0; padding-top: 7px; border-top: 1px solid var(--line-soft); font-size: 12px; }
.import-preview-list strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.import-preview-list span { display: block; overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; }
.archive-link { color: var(--accent-dark); text-decoration: none; font-weight: 650; }
.archive-link:hover { text-decoration: underline; }
.badge.pending { color: #766226; background: #f4edcf; }
.badge.failed { color: #9e3024; background: #f7dfdb; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 20px;
  z-index: 30;
  transform: translateX(-50%);
  padding: 11px 16px;
  border-radius: 7px;
  color: #fff;
  background: #302f2a;
  box-shadow: 0 8px 22px rgba(25, 25, 25, 0.16);
  font-size: 13px;
}

@media (max-width: 820px) {
  .topbar { height: auto; grid-template-columns: 1fr auto; padding: 14px 18px; gap: 12px; }
  .search-box { grid-column: 1 / -1; grid-row: 2; }
  .topbar-actions .button { font-size: 0; width: 42px; padding: 0; }
  .topbar-actions .button span { font-size: 20px; }
  .workspace { display: block; }
  .sidebar { padding: 12px 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  .sidebar nav { display: flex; overflow-x: auto; }
  .nav-item { white-space: nowrap; }
  .sidebar-note { display: none; }
  .content { padding: 28px 20px 60px; }
  .row-actions { opacity: 1; }
}

@media (max-width: 520px) {
  .auth-card { padding: 30px 24px; }
  .content-heading { align-items: start; flex-direction: column; gap: 6px; }
  .bookmark-row { grid-template-columns: 22px 28px minmax(0, 1fr); }
  .row-actions { grid-column: 3; }
  .bulk-bar { align-items: flex-start; flex-direction: column; }
  .bulk-actions { justify-content: flex-start; }
  .mapping-fields { grid-template-columns: 1fr; }
  .bookmark-note { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden; }
}