:root {
  color-scheme: light;
  --bg: #f0f2f5;
  --text: #333333;
  --text-muted: #6b7280;
  --card-bg: #ffffff;
  --border: #e0e0e0;
  --border-soft: #e8e8e8;
  --surface-2: #fafafa;
  --hover: #f5f7fa;
  --input-bg: #ffffff;
  --input-border: #d0d5dd;
  --input-text: #333333;
  --tab-color: #4b5563;
  --tab-hover: #f0f2f5;
  --tab-active-bg: #e5e7eb;
  --tab-active-text: #111111;
  --proxy-bg: #f0f4f8;
  --proxy-hover: #dbeafe;
  --stat-box-bg: #f8fafc;
  --btn-secondary-bg: #e5e7eb;
  --btn-secondary-text: #333333;
  --toggle-off: #cccccc;
  --shadow: rgba(0, 0, 0, 0.06);
  --shadow-strong: rgba(0, 0, 0, 0.1);
  --success-text: #166534;
  --danger-text: #991b1b;
  --badge-green-bg: #dcfce7;
  --badge-green-text: #166534;
  --badge-red-bg: #fee2e2;
  --badge-red-text: #991b1b;
  --badge-gray-bg: #e5e7eb;
  --badge-gray-text: #4b5563;
  --badge-orange-bg: #ffedd5;
  --badge-orange-text: #9a3412;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f172a;
  --text: #e5e7eb;
  --text-muted: #94a3b8;
  --card-bg: #1e293b;
  --border: #334155;
  --border-soft: #334155;
  --surface-2: #243044;
  --hover: #26344a;
  --input-bg: #0f172a;
  --input-border: #475569;
  --input-text: #e5e7eb;
  --tab-color: #cbd5e1;
  --tab-hover: #334155;
  --tab-active-bg: #334155;
  --tab-active-text: #ffffff;
  --proxy-bg: #0f172a;
  --proxy-hover: #1e3a8a;
  --stat-box-bg: #0f172a;
  --btn-secondary-bg: #334155;
  --btn-secondary-text: #e5e7eb;
  --toggle-off: #475569;
  --shadow: rgba(0, 0, 0, 0.4);
  --shadow-strong: rgba(0, 0, 0, 0.5);
  --success-text: #4ade80;
  --danger-text: #f87171;
  --badge-green-bg: rgba(34, 197, 94, 0.18);
  --badge-green-text: #4ade80;
  --badge-red-bg: rgba(239, 68, 68, 0.18);
  --badge-red-text: #f87171;
  --badge-gray-bg: rgba(148, 163, 184, 0.2);
  --badge-gray-text: #cbd5e1;
  --badge-orange-bg: rgba(249, 115, 22, 0.18);
  --badge-orange-text: #fb923c;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

input,
textarea,
select {
  background: var(--input-bg);
  color: var(--input-text);
  border-color: var(--input-border);
}

::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

.muted {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Login */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 2rem;
  width: 360px;
  box-shadow: 0 2px 8px var(--shadow-strong);
}

.login-top {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 0.25rem;
}

.login-card h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.login-card label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
  font-size: 0.9rem;
}

.login-card input {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.95rem;
}

.login-card button {
  width: 100%;
}

.login-card .theme-toggle {
  width: auto;
}

.error-msg {
  color: var(--danger-text);
  font-size: 0.85rem;
  margin-top: 0.5rem;
  min-height: 1.2em;
}

/* Header */
header {
  background: var(--card-bg);
  padding: 0.6rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-self: start;
}

.header-center {
  justify-self: center;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.health-countdown {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.health-countdown svg {
  opacity: 0.7;
  flex-shrink: 0;
}

.tabs {
  display: flex;
  gap: 0.2rem;
}

.tab {
  background: transparent;
  border: none;
  padding: 0.3rem 0.7rem;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--tab-color);
}

.tab:hover {
  background: var(--tab-hover);
}

.tab.active {
  background: var(--tab-active-bg);
  color: var(--tab-active-text);
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 0.4rem;
  justify-self: end;
}

/* Theme toggle */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.32rem 0.5rem;
}

.icon-moon {
  display: none;
}

html[data-theme="dark"] .icon-sun {
  display: none;
}

html[data-theme="dark"] .icon-moon {
  display: block;
}

/* View containers */
.view {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Main */
main {
  max-width: 1200px;
  margin: 0.75rem auto;
  padding: 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Card */
.card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 1px 4px var(--shadow);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}

.section-header h2 {
  font-size: 1rem;
}

/* Table */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}

th, td {
  text-align: left;
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid var(--border-soft);
  white-space: nowrap;
}

th {
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-2);
}

tr:hover td {
  background: var(--hover);
}

tr.row-dim td {
  opacity: 0.55;
}

td.col-url {
  max-width: 190px;
  overflow: hidden;
  text-overflow: ellipsis;
}

td.col-url .proxy-url {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.6rem;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.pagination-controls select {
  padding: 0.25rem 0.4rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.78rem;
  background: var(--input-bg);
  color: var(--input-text);
}

/* Buttons */
.btn {
  padding: 0.32rem 0.75rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: opacity 0.15s;
}

.btn:hover {
  opacity: 0.85;
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.btn-primary {
  background: #2563eb;
  color: #fff;
}

.btn-secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
}

.btn-danger {
  background: #dc2626;
  color: #fff;
}

.btn-sm {
  padding: 0.22rem 0.5rem;
  font-size: 0.75rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 1px 7px;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 10px;
}

.badge-green {
  color: var(--badge-green-text);
  background: var(--badge-green-bg);
}

.badge-red {
  color: var(--badge-red-text);
  background: var(--badge-red-bg);
}

.badge-gray {
  color: var(--badge-gray-text);
  background: var(--badge-gray-bg);
}

.badge-blue {
  color: #1e40af;
  background: #dbeafe;
}

.badge-orange {
  color: var(--badge-orange-text);
  background: var(--badge-orange-bg);
}

.clickable {
  cursor: pointer;
}

.account-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.account-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.account-summary .stat-box {
  min-width: 96px;
}

th.sortable {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

th.sortable:hover {
  color: var(--text);
}

.sort-indicator {
  font-size: 0.7rem;
}

html[data-theme="dark"] .badge-blue {
  color: #93c5fd;
  background: rgba(59, 130, 246, 0.2);
}

/* Import */
#import-form textarea {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.82rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  resize: vertical;
}

.import-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.import-row input {
  flex: 1;
  padding: 0.45rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.9rem;
}

.import-result {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.import-ok {
  color: var(--success-text);
}

.import-err {
  color: var(--danger-text);
}

/* Toolbar / filters */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
}

.toolbar select,
.toolbar input {
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.8rem;
  background: var(--input-bg);
  color: var(--input-text);
}

.toolbar input {
  flex: 1;
  min-width: 160px;
}

/* Modal / Dialog */
dialog {
  border: none;
  border-radius: 8px;
  padding: 0;
  max-width: 500px;
  width: 90%;
  background: var(--card-bg);
  color: var(--text);
  box-shadow: 0 8px 30px var(--shadow-strong);
  margin: auto;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.4);
}

#events-modal {
  width: 60vw;
  max-width: 60vw;
}

.modal-content {
  padding: 1.5rem;
}

.modal-content h3 {
  margin-bottom: 1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* Form fields inside modal */
.form-group {
  margin-bottom: 0.75rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.85rem;
  margin-bottom: 0.2rem;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"] {
  width: 100%;
  padding: 0.45rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.9rem;
}

/* Copyable values */
.proxy-url {
  cursor: pointer;
  padding: 2px 6px;
  background: var(--proxy-bg);
  border-radius: 3px;
  font-size: 0.82rem;
  transition: background 0.15s;
}

.proxy-url:hover {
  background: var(--proxy-hover);
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  cursor: pointer;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle .slider {
  position: absolute;
  inset: 0;
  background: var(--toggle-off);
  border-radius: 22px;
  transition: background 0.2s;
}

.toggle .slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle input:checked + .slider {
  background: #16a34a;
}

.toggle input:checked + .slider::before {
  transform: translateX(18px);
}

/* Toasts */
#toast-container {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  max-width: 360px;
}

.toast {
  padding: 0.6rem 0.85rem;
  border-radius: 6px;
  font-size: 0.82rem;
  color: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  opacity: 1;
  transition: opacity 0.3s, transform 0.3s;
}

.toast-hide {
  opacity: 0;
  transform: translateX(20px);
}

.toast-success {
  background: #16a34a;
}

.toast-error {
  background: #dc2626;
}

.toast-info {
  background: #2563eb;
}

/* Statistics */
.stats-hero {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 0.75rem;
}

.hero-card {
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 1rem 1.15rem;
  box-shadow: 0 1px 4px var(--shadow);
  min-width: 0;
}

.hero-card-lg {
  background: linear-gradient(135deg, #2563eb, #4f46e5);
  border-color: transparent;
  color: #fff;
}

.hero-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.hero-value {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.15;
  margin: 0.2rem 0;
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero-card-lg .hero-value {
  font-size: 2.75rem;
}

.hero-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.hero-card-lg .hero-label,
.hero-card-lg .hero-sub {
  color: rgba(255, 255, 255, 0.85);
}

.stats-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  align-items: start;
}

.section-tools {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-tools select {
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.8rem;
  background: var(--input-bg);
  color: var(--input-text);
}

/* Daily usage chart */
.daily-chart {
  overflow-x: auto;
  padding: 0.25rem 0 0;
}

.daily-bars {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 190px;
  min-width: 100%;
}

.daily-bar {
  flex: 1 0 22px;
  min-width: 22px;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.daily-bar-value {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.daily-bar-track {
  width: 100%;
  flex: 1;
  display: flex;
  align-items: flex-end;
}

.daily-bar-fill {
  width: 100%;
  min-height: 2px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #6366f1, #3b82f6);
  transition: opacity 0.15s;
}

.daily-bar:hover .daily-bar-fill {
  opacity: 0.75;
}

.daily-bar-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.stats-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.stat-box {
  flex: 1;
  min-width: 120px;
  background: var(--stat-box-bg);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 0.55rem 0.8rem;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.stat-chain {
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.6rem;
}

.stat-chain:last-child {
  margin-bottom: 0;
}

.stat-chain-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.stat-chain-name {
  font-weight: 600;
}

.stat-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-col h4 {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.3rem;
}

.stat-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8rem;
  padding: 1px 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Chain ranking */
.rank-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.9rem;
}

.rank-row {
  display: grid;
  grid-template-columns: 90px 1fr 64px;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
}

.rank-name {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rank-bar {
  display: block;
  height: 8px;
  background: var(--border-soft);
  border-radius: 4px;
  overflow: hidden;
}

.rank-bar > span {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #3b82f6, #6366f1);
}

.rank-count {
  text-align: right;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Daily tree */
.tree {
  font-size: 0.83rem;
}

.tree-day {
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.tree-day > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.tree-day > summary::-webkit-details-marker,
.tree-chain > summary::-webkit-details-marker {
  display: none;
}

.tree-day[open] > summary {
  border-bottom: 1px solid var(--border-soft);
}

.tree-day-label {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.tree-body {
  padding: 0.3rem 0.5rem 0.4rem;
}

.tree-chain {
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  margin: 0.3rem 0;
  background: var(--stat-box-bg);
}

.tree-chain > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  font-weight: 500;
  list-style: none;
}

.tree-chain[open] > summary {
  border-bottom: 1px solid var(--border-soft);
}

.tree-methods {
  padding: 0.4rem 0.7rem 0.5rem;
}

.stat-bucket {
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.stat-bucket > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  list-style: none;
}

.stat-bucket > summary::-webkit-details-marker {
  display: none;
}

.stat-bucket[open] > summary {
  border-bottom: 1px solid var(--border-soft);
}

.stat-bucket-time {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.stat-bucket-body {
  padding: 0.7rem 0.85rem;
}

.stat-bucket-body .stat-chain:last-child {
  margin-bottom: 0;
}

@media (max-width: 860px) {
  .stats-hero {
    grid-template-columns: 1fr;
  }

  .stats-columns {
    grid-template-columns: 1fr;
  }

  .header-center {
    display: none;
  }
}

@media (max-width: 640px) {
  .stat-breakdown {
    grid-template-columns: 1fr;
  }
}