/* ============================================================
   Model Catalog — 复刻自 pi.dev/models 的设计
   设计 token 提取自原站 computed styles（2026-09）
   ============================================================ */

:root {
  --serif: "Plantin MT Pro", "Plantin MT Std", Plantin, Georgia, "Times New Roman", serif;
  --mono: "Departure Mono", "Commit Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* 布局 */
  --page-max: 1200px;
  --gutter: 36px;

  /* 亮色主题 */
  --bg-page: rgb(235, 231, 228);
  --bg-panel: rgb(244, 242, 240);
  --bg-thead: rgb(243, 242, 240);
  --bg-input: rgb(238, 241, 243);
  --bg-hover: rgba(37, 47, 61, 0.045);
  --text: rgba(37, 47, 61, 0.96);
  --text-2: rgba(57, 67, 82, 0.84);
  --text-3: rgba(92, 87, 82, 0.77);
  --thead-text: rgb(75, 96, 124);
  --provider-text: #245f91;
  --border: rgba(92, 87, 82, 0.25);
  --border-input: rgba(139, 132, 125, 0.35);
  --border-nav: rgba(179, 173, 167, 0.81);
  --btn-bg: rgba(37, 47, 61, 0.031);
  --logo-mark: rgb(9, 9, 11);
}

/* 暗色主题 */
[data-theme="dark"] {
  --bg-page: rgb(24, 27, 32);
  --bg-panel: rgb(33, 37, 43);
  --bg-thead: rgb(35, 39, 45);
  --bg-input: rgb(27, 31, 36);
  --bg-hover: rgba(233, 236, 240, 0.05);
  --text: rgba(233, 236, 240, 0.96);
  --text-2: rgba(203, 210, 219, 0.84);
  --text-3: rgba(181, 178, 174, 0.77);
  --thead-text: rgb(143, 164, 196);
  --provider-text: #91bfea;
  --border: rgba(181, 178, 174, 0.25);
  --border-input: rgba(139, 132, 125, 0.45);
  --border-nav: rgba(179, 173, 167, 0.35);
  --btn-bg: rgba(233, 236, 240, 0.04);
  --logo-mark: rgb(233, 236, 240);
}

/* Auto 模式下跟随系统偏好 */
@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg-page: rgb(24, 27, 32);
    --bg-panel: rgb(33, 37, 43);
    --bg-thead: rgb(35, 39, 45);
    --bg-input: rgb(27, 31, 36);
    --bg-hover: rgba(233, 236, 240, 0.05);
    --text: rgba(233, 236, 240, 0.96);
    --text-2: rgba(203, 210, 219, 0.84);
    --text-3: rgba(181, 178, 174, 0.77);
    --thead-text: rgb(143, 164, 196);
    --provider-text: #91bfea;
    --border: rgba(181, 178, 174, 0.25);
    --border-input: rgba(139, 132, 125, 0.45);
    --border-nav: rgba(179, 173, 167, 0.35);
    --btn-bg: rgba(233, 236, 240, 0.04);
    --logo-mark: rgb(233, 236, 240);
  }
}

/* ---------- 基础 ---------- */

* { box-sizing: border-box; }

html {
  background: var(--bg-page);
}

body {
  margin: 0;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-color: rgba(139, 132, 125, 0.5);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

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

/* ---------- 顶部导航 ---------- */

.sticky-nav {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 14.4px var(--gutter) 0;
}

.sticky-nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12.6px 0;
  border-bottom: 1px solid var(--border-nav);
}

.sticky-nav-logo {
  display: flex;
  color: var(--logo-mark);
}

.pi-logo-mark {
  display: block;
}

/* 右上角控制按钮（语言 / 主题） */
.sticky-nav-controls {
  display: flex;
  align-items: center;
  gap: 12.6px;
  white-space: nowrap;
}

.sticky-nav-controls-sep {
  color: var(--text-3);
}

.nav-toggle {
  font-family: var(--mono);
  font-size: 13.68px;
  color: var(--text-2);
  text-decoration: underline;
  text-decoration-color: rgba(139, 132, 125, 0.5);
}

.nav-toggle:hover {
  color: var(--text);
}

/* ---------- 主区域 ---------- */

.content-shell {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 36px var(--gutter) 72px;
  display: grid;
  gap: 18px;
}

.content-hero {
  padding: 36px 0;
}

.content-title {
  margin: 0 0 18px;
  max-width: 792px;
  font-size: 60px;
  font-weight: 400;
  letter-spacing: -3.3px;
  line-height: 1.1;
}

/* ---------- 数据卡片 ---------- */

.surface-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
}

.content-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 14.04px 16.8px;
  border-bottom: 1px solid var(--border-input);
}

.content-card-title {
  margin: 0;
  font-family: var(--mono);
  font-size: 14.76px;
  font-weight: 400;
  letter-spacing: 2.36px;
  text-transform: uppercase;
}

.content-card-actions {
  font-size: 18px;
}

.content-card-body {
  display: grid;
  gap: 16.2px;
  padding: 16.8px;
}

/* ---------- 筛选栏 ---------- */

.action-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12.6px;
  align-items: end;
}

.action-bar-field {
  display: grid;
  gap: 9px;
}

.field-label {
  font-size: 18px;
  line-height: 1.25;
}

.text-control,
.select-control {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: 0;
  padding: 8px 13px;
  width: 100%;
}

.context-filter { position: relative; min-width: 0; }
.context-filter summary { cursor: pointer; list-style: none; }
.context-filter summary::-webkit-details-marker { display: none; }
.context-options {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 10;
  min-width: 100%;
  padding: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  font-family: var(--mono);
  font-size: 13px;
}
.context-options label { display: flex; align-items: center; gap: 8px; padding: 6px; white-space: nowrap; cursor: pointer; }
.context-options label:hover { background: var(--bg-hover); }

.text-control::placeholder {
  color: var(--text-3);
}

.text-control:focus-visible,
.select-control:focus-visible,
.reset-button:focus-visible,
.nav-toggle:focus-visible {
  outline: 1.5px solid var(--thead-text);
  outline-offset: 1px;
}

.select-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%235B607A' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 34px;
  cursor: pointer;
}

.reset-button {
  font-family: var(--mono);
  font-size: 12.96px;
  color: var(--text-2);
  background: var(--btn-bg);
  border: 1px solid var(--border-input);
  padding: 9.5px 15.3px;
  white-space: nowrap;
}

.reset-button:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.action-bar .text-control,
.action-bar .select-control,
.action-bar .reset-button {
  height: 44px;
  padding-block: 0;
  line-height: 24px;
}

.context-filter summary.select-control,
.provider-filter summary.select-control {
  display: flex;
  align-items: center;
}

/* ---------- 表格 ---------- */

.data-table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  min-width: 1020px;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 14.22px;
  color: var(--text-2);
}

.data-table th,
.data-table td {
  padding: 9.72px 11.16px;
  text-align: left;
  vertical-align: top;
}

.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 5;
  font-size: 11.34px;
  font-weight: 400;
  letter-spacing: 1.59px;
  text-transform: uppercase;
  color: var(--thead-text);
  background: var(--bg-thead);
  white-space: nowrap;
}

.data-table .data-table-col-num {
  padding-right: 28px;
  text-align: right !important;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.data-table tbody .data-table-col-num {
  vertical-align: middle;
}

/* provider 分组行 */
.models-provider-row th {
  padding: 7.56px 11.16px;
  font-size: 13.68px;
  color: var(--text);
  border-top: 1px solid var(--border-input);
}

.models-provider-link {
  color: var(--provider-text);
  text-decoration: none;
  white-space: nowrap;
}

.models-provider-link:hover {
  text-decoration: underline;
}

.models-provider-row .models-provider-link code {
  display: inline;
  margin-top: 0;
  color: inherit;
}

.models-provider-count {
  font-weight: 400;
  color: var(--text-3);
}

/* 模型行 */
.data-table tbody td {
  border-top: 1px solid var(--border-input);
}

.models-model-col a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: rgba(139, 132, 125, 0.5);
}

.models-model-col a:hover {
  color: var(--text);
}

.models-model-col .sota-badge {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--border-input);
  border-radius: 3px;
  color: var(--text-2);
  font-size: 10px;
  font-weight: 400;
  line-height: 1.5;
  vertical-align: middle;
  text-decoration: none;
}

.sota-badge:focus-visible { outline: 1.5px solid var(--thead-text); outline-offset: 2px; }

.data-table code {
  display: block;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 13.68px;
  font-weight: 700;
  color: var(--text);
  word-break: break-all;
}

.models-model-col code {
  font-weight: 400;
  color: var(--text-2);
}

.data-table tbody tr:hover td,
.data-table tbody tr:hover th {
  background: var(--bg-hover);
}

.table-empty {
  padding: 27px 11.16px;
  font-family: var(--mono);
  font-size: 14.22px;
  color: var(--text-3);
  text-align: center;
}

.exchange-info {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-3);
}

.exchange-info:has([hidden] + [hidden]) {
  display: none;
}

.exchange-refresh {
  width: auto;
  padding: 4px 6px;
  font: inherit;
  color: inherit;
  background: transparent;
  border-color: transparent;
  border-radius: 4px;
  cursor: pointer;
}

.exchange-refresh:hover:not(:disabled) {
  color: var(--text-2);
  background: var(--bg-hover);
}

.exchange-refresh:disabled {
  opacity: 0.5;
  cursor: wait;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .action-bar {
    grid-template-columns: 1fr 1fr;
  }
  .reset-button {
    grid-column: 1 / -1;
    justify-self: start;
  }
}

@media (max-width: 860px) {
  .content-title {
    font-size: 44px;
    letter-spacing: -2px;
  }
  .action-bar {
    grid-template-columns: 1fr;
  }
}

/* 模型说明：悬停或键盘聚焦信息图标时显示。 */
.model-info {
  position: relative;
  display: inline-block;
  margin-left: 6px;
  color: var(--text-3);
  cursor: help;
  font-size: 14px;
  font-weight: 400;
}

.model-info-tooltip {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 2;
  width: 240px;
  max-width: 60vw;
  padding: 8px 10px;
  border: 1px solid var(--border-input);
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--text);
  white-space: normal;
  font-size: 13px;
  line-height: 1.5;
  text-align: left;
}

.model-info:hover .model-info-tooltip,
.model-info:focus .model-info-tooltip {
  display: block;
}

.price-sort {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  cursor: pointer;
}

.price-sort:focus-visible {
  outline: 1.5px solid var(--thead-text);
  outline-offset: 4px;
}

.sort-indicator {
  position: absolute;
  left: calc(100% + 5px);
  top: 50%;
  transform: translateY(-50%);
  display: inline-block;
  width: 1em;
  text-align: center;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 4px;
  text-decoration: none;
  cursor: pointer;
}

.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle-core { fill: currentColor; r: 9px; transition: r 260ms ease; }
.theme-toggle-hole { cx: 17px; cy: 7px; transition: cx 300ms ease, cy 300ms ease; }
.theme-toggle-rays {
  opacity: 0;
  stroke: currentColor; stroke-linecap: round; stroke-width: 1.6px;
  transform: rotate(-40deg) scale(0.6); transform-origin: 50%;
  transition: opacity 220ms ease, transform 320ms ease;
}
[data-theme="light"] .theme-toggle-core { r: 4.4px; }
[data-theme="light"] .theme-toggle-hole { cx: 32px; cy: -8px; }
[data-theme="light"] .theme-toggle-rays { opacity: 1; transform: rotate(0) scale(1); }

@media (prefers-reduced-motion: reduce) {
  .theme-toggle-core, .theme-toggle-hole, .theme-toggle-rays { transition: none; }
}

.nav-project-name {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

.nav-project-icon { flex-shrink: 0; }

.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  justify-content: center;
  padding: 0 var(--gutter) 36px;
}

.footer-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 20px;
  color: var(--text-2);
  font-size: 13px;
}

.site-footer .sticky-nav-logo { color: var(--text-3); }
.footer-source { display: inline-flex; align-items: center; gap: 8px; }
.site-footer .sticky-nav-logo:hover { color: var(--text-2); }
.site-footer .pi-logo-mark { width: 24px; height: 24px; }

.footer-info a { color: inherit; }
.footer-info a:hover { color: var(--text); }

.site-footer a:focus-visible {
  outline: 1.5px solid var(--thead-text);
  outline-offset: 4px;
}

.models-model-col .trait-badge {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-3);
  font-size: 10px;
  font-weight: 400;
  vertical-align: middle;
}

.brand-icon {
  display: inline-block;
  width: 18px;
  height: 18px;
  margin-left: 6px;
  padding: 2px;
  box-sizing: border-box;
  object-fit: contain;
  vertical-align: -3px;
  border-radius: 4px;
  background: #fff;
}

.provider-filter { position: relative; min-width: 0; }
.provider-filter summary { cursor: pointer; list-style: none; }
.provider-filter summary::-webkit-details-marker { display: none; }
#provider-summary { display: flex; align-items: center; gap: 7px; min-width: 0; }
#provider-summary > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#provider-summary .brand-icon { margin: 0; flex-shrink: 0; }
.provider-options {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 11;
  width: 100%;
  max-height: 320px;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  box-shadow: 0 8px 24px #0002;
  font-family: var(--mono);
  font-size: 13px;
}
.provider-options label { display: flex; align-items: center; gap: 7px; padding: 8px 5px; cursor: pointer; }
.provider-options label:hover, .provider-options label:focus-within { background: var(--bg-hover); }
.provider-options label:has(input:checked) { background: var(--btn-bg); font-weight: 700; }
.provider-options input { margin: 0; flex-shrink: 0; accent-color: var(--thead-text); }
.provider-options .brand-icon { margin: 0; flex-shrink: 0; }
.provider-options span { overflow-wrap: anywhere; min-width: 0; }

.provider-option { display: flex; align-items: center; }
.provider-option > label { flex: 1; min-width: 0; }
.provider-favorite {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  color: var(--text-3);
  background: transparent;
  cursor: pointer;
}
.provider-favorite svg { fill: none; stroke: currentColor; stroke-width: 1.6; }
.provider-favorite[aria-pressed="true"] { color: var(--thead-text); }
.provider-favorite[aria-pressed="true"] svg { fill: currentColor; }
.provider-favorite:hover { background: var(--bg-hover); }
.provider-favorite:focus-visible { outline: 1.5px solid var(--thead-text); outline-offset: -2px; }

@media (hover: hover) and (pointer: fine) {
  .provider-favorite { opacity: 0; pointer-events: none; }
  .provider-favorite[aria-pressed="true"],
  .provider-option:hover .provider-favorite,
  .provider-option:focus-within .provider-favorite {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ---------- 回到顶部 ---------- */

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-input);
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--text-2);
  box-shadow: 0 8px 24px #0002;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 200ms ease, transform 200ms ease, visibility 200ms;
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  color: var(--text);
  background: var(--bg-input);
}

.back-to-top:focus-visible {
  outline: 1.5px solid var(--thead-text);
  outline-offset: 1px;
}

@media (max-width: 860px) {
  .back-to-top { right: 14px; bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .back-to-top { transition: none; }
}