/* ==========================================================================
   npm 下载量统计 · 样式
   ========================================================================== */

:root {
  --bg: #f4f6fb;
  --bg-glow-1: rgba(79, 124, 255, 0.18);
  --bg-glow-2: rgba(34, 193, 164, 0.15);
  --panel: rgba(255, 255, 255, 0.82);
  --panel-solid: #ffffff;
  --panel-border: rgba(15, 23, 42, 0.08);
  --seg-bg: rgba(15, 23, 42, 0.045);
  --seg-active-bg: #ffffff;
  --row-border: rgba(15, 23, 42, 0.06);
  --row-hover: rgba(79, 124, 255, 0.06);
  --foot-bg: rgba(15, 23, 42, 0.03);
  --code-bg: rgba(15, 23, 42, 0.05);
  --text: #0f172a;
  --text-dim: #475569;
  --text-mute: #8a97ab;
  --accent: #4f7cff;
  --accent-soft: rgba(79, 124, 255, 0.12);
  --up: #16a34a;
  --down: #dc2626;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 32px -18px rgba(15, 23, 42, 0.28);
  --radius: 16px;

  /* 图表专用 */
  --chart-text: #334155;
  --chart-axis: #94a3b8;
  --chart-split: rgba(148, 163, 184, 0.22);
  --chart-tooltip-bg: rgba(255, 255, 255, 0.96);
  --chart-tooltip-border: rgba(15, 23, 42, 0.08);
  --chart-tooltip-text: #0f172a;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme='auto'] {
    --bg: #080c17;
    --bg-glow-1: rgba(79, 124, 255, 0.22);
    --bg-glow-2: rgba(34, 193, 164, 0.14);
    --panel: rgba(19, 25, 43, 0.78);
    --panel-solid: #131a2b;
    --panel-border: rgba(148, 163, 184, 0.14);
    --seg-bg: rgba(148, 163, 184, 0.09);
    --seg-active-bg: rgba(148, 163, 184, 0.2);
    --row-border: rgba(148, 163, 184, 0.1);
    --row-hover: rgba(79, 124, 255, 0.12);
    --foot-bg: rgba(148, 163, 184, 0.06);
    --code-bg: rgba(148, 163, 184, 0.09);
    --text: #e9eefb;
    --text-dim: #a7b3c9;
    --text-mute: #6c7b95;
    --accent: #6f95ff;
    --accent-soft: rgba(111, 149, 255, 0.16);
    --up: #4ade80;
    --down: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 18px 40px -22px rgba(0, 0, 0, 0.8);
    --chart-text: #c3cddf;
    --chart-axis: #6f7f99;
    --chart-split: rgba(148, 163, 184, 0.16);
    --chart-tooltip-bg: rgba(15, 21, 37, 0.96);
    --chart-tooltip-border: rgba(148, 163, 184, 0.2);
    --chart-tooltip-text: #e9eefb;
  }
}

:root[data-theme='dark'] {
  --bg: #080c17;
  --bg-glow-1: rgba(79, 124, 255, 0.22);
  --bg-glow-2: rgba(34, 193, 164, 0.14);
  --panel: rgba(19, 25, 43, 0.78);
  --panel-solid: #131a2b;
  --panel-border: rgba(148, 163, 184, 0.14);
  --seg-bg: rgba(148, 163, 184, 0.09);
  --seg-active-bg: rgba(148, 163, 184, 0.2);
  --row-border: rgba(148, 163, 184, 0.1);
  --row-hover: rgba(79, 124, 255, 0.12);
  --foot-bg: rgba(148, 163, 184, 0.06);
  --code-bg: rgba(148, 163, 184, 0.09);
  --text: #e9eefb;
  --text-dim: #a7b3c9;
  --text-mute: #6c7b95;
  --accent: #6f95ff;
  --accent-soft: rgba(111, 149, 255, 0.16);
  --up: #4ade80;
  --down: #f87171;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 18px 40px -22px rgba(0, 0, 0, 0.8);
  --chart-text: #c3cddf;
  --chart-axis: #6f7f99;
  --chart-split: rgba(148, 163, 184, 0.16);
  --chart-tooltip-bg: rgba(15, 21, 37, 0.96);
  --chart-tooltip-border: rgba(148, 163, 184, 0.2);
  --chart-tooltip-text: #e9eefb;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background 0.25s ease, color 0.25s ease;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(680px 420px at 12% -6%, var(--bg-glow-1), transparent 65%),
    radial-gradient(620px 400px at 92% 4%, var(--bg-glow-2), transparent 62%);
}

.hidden {
  display: none !important;
}

.mono,
code {
  font-family: ui-monospace, SFMono-Regular, 'JetBrains Mono', Menlo, Consolas, monospace;
}

code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 5px;
  font-size: 12px;
}

a.link {
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}
a.link:hover {
  text-decoration: underline;
}

/* --------------------------------- 布局 --------------------------------- */

.app {
  max-width: 1340px;
  margin: 0 auto;
  padding: 26px 20px 56px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---------------------------------- 顶栏 -------------------------------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  font-size: 22px;
  border-radius: 14px;
  background: linear-gradient(140deg, #4f7cff, #7c5cff 55%, #22c1a4);
  box-shadow: 0 10px 24px -12px rgba(79, 124, 255, 0.9);
}

.brand-text h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand-text .sub {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--text-mute);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.dot-sep {
  opacity: 0.5;
}

.actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn {
  font: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 7px 14px;
  cursor: pointer;
  transition: border-color 0.18s ease, transform 0.18s ease, background 0.18s ease;
  backdrop-filter: blur(8px);
}

.btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-icon {
  width: 38px;
  padding: 7px 0;
  text-align: center;
  font-size: 15px;
}

.btn-sm {
  font-size: 12px;
  padding: 5px 11px;
}

/* ---------------------------------- 卡片 -------------------------------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 12px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 13px 15px 11px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-soft);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-label {
  font-size: 12px;
  color: var(--text-mute);
}

.card-value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.4px;
  font-variant-numeric: tabular-nums;
  margin: 3px 0 1px;
}

.card-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 15px;
}

.card-note,
.card-compact {
  font-size: 11px;
  color: var(--text-mute);
}

.card-compact {
  margin-left: auto;
}

.delta {
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--code-bg);
}
.delta.up {
  color: var(--up);
  background: rgba(22, 163, 74, 0.12);
}
.delta.down {
  color: var(--down);
  background: rgba(220, 38, 38, 0.12);
}
.delta.flat,
.delta.muted {
  color: var(--text-mute);
}

/* ---------------------------------- 面板 -------------------------------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.panel-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.panel-title h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
}

.hint {
  font-size: 11.5px;
  color: var(--text-mute);
  font-variant-numeric: tabular-nums;
}

.controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.seg {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--seg-bg);
  border: 1px solid var(--panel-border);
  border-radius: 11px;
}

.seg button {
  font: inherit;
  font-size: 12.5px;
  color: var(--text-dim);
  background: transparent;
  border: 0;
  border-radius: 8px;
  padding: 4px 11px;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
  white-space: nowrap;
}

.seg button:hover {
  color: var(--text);
}

.seg button.active {
  background: var(--seg-active-bg);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--text-dim);
  padding: 4px 10px;
  border: 1px solid var(--panel-border);
  border-radius: 11px;
  cursor: pointer;
  user-select: none;
}

.switch input {
  accent-color: var(--accent);
  cursor: pointer;
}

/* ---------------------------------- chips ------------------------------- */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 6px;
  min-height: 4px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: inherit;
  font-size: 12px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 4px 11px;
  cursor: pointer;
  transition: border-color 0.16s ease, opacity 0.16s ease, background 0.16s ease;
}

.chip:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.chip.off {
  opacity: 0.4;
}

.chip.off .chip-name {
  text-decoration: line-through;
}

.chip-action {
  border-style: dashed;
  color: var(--text-mute);
}

/* ---------------------------------- 图表 -------------------------------- */

.chart {
  width: 100%;
}

.chart-lg {
  height: 430px;
}

.chart-md {
  height: 306px;
}

.legend-note {
  margin: 8px 0 0;
  font-size: 11.5px;
  color: var(--text-mute);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ---------------------------------- 表格 -------------------------------- */

.table-wrap {
  overflow: auto;
  max-height: 560px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--panel-solid);
  text-align: left;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-mute);
  padding: 9px 12px;
  border-bottom: 1px solid var(--panel-border);
  white-space: nowrap;
}

.table th.sortable {
  cursor: pointer;
  user-select: none;
}

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

.table th.sort-asc::after {
  content: ' ↑';
  color: var(--accent);
}

.table th.sort-desc::after {
  content: ' ↓';
  color: var(--accent);
}

.table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--row-border);
  white-space: nowrap;
}

.table tbody tr:hover td {
  background: var(--row-hover);
}

.table tbody tr.row-off {
  opacity: 0.42;
}

.table th.num,
.table td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.table td.strong {
  font-weight: 650;
}

.table tfoot td {
  /* 必须不透明：底部合计行是 sticky 的，用半透明底色会让滚动时下方的行透出来。
     用 --panel-solid 打底，再叠一层 --foot-bg 保持原有的淡灰观感。 */
  background-color: var(--panel-solid);
  background-image: linear-gradient(var(--foot-bg), var(--foot-bg));
  font-weight: 650;
  border-top: 2px solid var(--panel-border);
  border-bottom: 0;
  position: sticky;
  bottom: 0;
  z-index: 2;
}

.table td.empty {
  text-align: center;
  color: var(--text-mute);
  padding: 32px 0;
}

.cell-name {
  display: flex;
  align-items: center;
  gap: 8px;
}

.table td.not-indexed {
  color: var(--text-mute);
  cursor: help;
}

/* 「未被 npm 下载量服务收录」的标记 */
.badge-warn {
  font-size: 10.5px;
  line-height: 1.7;
  padding: 0 6px;
  margin-left: 2px;
  border-radius: 999px;
  color: #b45309;
  background: rgba(245, 165, 36, 0.16);
  border: 1px solid rgba(245, 165, 36, 0.42);
  white-space: nowrap;
  cursor: help;
}

:root[data-theme='dark'] .badge-warn {
  color: #fcd34d;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme='auto'] .badge-warn {
    color: #fcd34d;
  }
}

.chip.not-indexed .chip-name {
  text-decoration: underline dotted;
  text-underline-offset: 3px;
}

.cell-name .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.name-text {
  font-weight: 550;
}

.ver {
  font-size: 10.5px;
  color: var(--text-mute);
  border: 1px solid var(--panel-border);
  border-radius: 5px;
  padding: 0 5px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
}

/* ---------------------------------- 提示 -------------------------------- */

.banner {
  border-radius: 12px;
  padding: 11px 15px;
  font-size: 13px;
  border: 1px solid transparent;
  line-height: 1.7;
}

.banner-error {
  background: rgba(220, 38, 38, 0.09);
  border-color: rgba(220, 38, 38, 0.32);
  color: #b91c1c;
}

.banner-ok {
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.3);
  color: #15803d;
}

.banner-warn {
  background: rgba(245, 165, 36, 0.12);
  border-color: rgba(245, 165, 36, 0.42);
  color: #92400e;
}

:root[data-theme='dark'] .banner-error {
  color: #fca5a5;
}
:root[data-theme='dark'] .banner-ok {
  color: #86efac;
}
:root[data-theme='dark'] .banner-warn {
  color: #fcd34d;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme='auto'] .banner-error {
    color: #fca5a5;
  }
  :root[data-theme='auto'] .banner-ok {
    color: #86efac;
  }
  :root[data-theme='auto'] .banner-warn {
    color: #fcd34d;
  }
}

.banner-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  flex-wrap: wrap;
}

/* ---------------------------------- 页脚 -------------------------------- */

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 11.5px;
  color: var(--text-mute);
  padding: 6px 2px 0;
}

.footer-actions {
  display: flex;
  gap: 12px;
}

.link-btn {
  font: inherit;
  font-size: 11.5px;
  color: var(--accent);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-decoration: underline dotted;
}

.debug {
  flex: 1 0 100%;
  margin: 4px 0 0;
  padding: 12px 14px;
  background: var(--code-bg);
  border-radius: 10px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--text-dim);
  white-space: pre-wrap;
  max-height: 320px;
  overflow: auto;
}

/* --------------------------------- 加载遮罩 ------------------------------ */

.loading {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-dim);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(3px);
}

.spinner {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 3px solid var(--seg-bg);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* --------------------------------- 响应式 -------------------------------- */

@media (max-width: 1000px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .chart-md {
    height: 280px;
  }
}

@media (max-width: 720px) {
  .app {
    padding: 18px 14px 44px;
  }
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .card-value {
    font-size: 22px;
  }
  .chart-lg {
    height: 340px;
  }
  .panel {
    padding: 14px;
  }
  .brand-text h1 {
    font-size: 17px;
  }
}

/* --------------------------------- 排名 ---------------------------------- */

.rank-cell {
  white-space: nowrap;
}

.rank-num {
  display: inline-block;
  min-width: 18px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.rank-num.rank-top {
  color: var(--accent);
}

.rank-none,
.rank-unknown {
  color: var(--text-mute);
  cursor: help;
}

.rank-unknown {
  font-size: 11.5px;
}

.rank-score {
  margin-left: 6px;
  font-size: 10.5px;
  color: var(--text-mute);
}

.th-sub {
  display: block;
  font-weight: 400;
  font-size: 10px;
  color: var(--text-mute);
}

/* ------------------------------ 用户名切换 ------------------------------- */

.user-switch {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  vertical-align: middle;
}

.user-switch .user-at {
  color: var(--text-mute);
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
}

.user-switch input {
  width: 11ch;
  min-width: 90px;
  padding: 2.5px 7px;
  font: inherit;
  font-size: 12px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  color: var(--text);
  background: var(--seg-bg);
  border: 1px solid var(--panel-border);
  border-radius: 7px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.user-switch input::placeholder {
  color: var(--text-mute);
}

.user-switch input:hover {
  border-color: var(--accent);
}

.user-switch input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.user-switch input.invalid {
  border-color: var(--down);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--down) 18%, transparent);
}

.user-switch input.busy {
  opacity: 0.6;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------- 说明区（静态可抓取） -------------------------- */

.about-body {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.85;
}

.about-body p {
  margin: 0 0 10px;
}

.about-body strong {
  color: var(--text);
}

.about-body code {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--code-bg);
  color: var(--text);
}

.about-body ol {
  margin: 0 0 14px;
  padding-left: 22px;
}

.about-body ol li {
  margin-bottom: 4px;
}

.faq {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--row-border);
}

.faq dt {
  font-weight: 650;
  color: var(--text);
  margin-top: 10px;
}

.faq dd {
  margin: 2px 0 0;
}