/* ==========================================================================
   我的导航 · 样式
   想换配色，只需要改下面 :root 和 [data-theme="dark"] 里的变量。
   ========================================================================== */

:root {
  color-scheme: light;

  --bg: #f6f7fb;
  --surface: #ffffff;
  --nav-bg: rgba(246, 247, 251, 0.8);

  --text: #101828;
  --text-2: #475467;
  --muted: #98a2b3;

  --border: #eaecf0;
  --border-strong: #d0d5dd;

  --accent: #4f46e5;
  --accent-2: #7c3aed;
  --accent-soft: rgba(79, 70, 229, 0.07);
  --accent-contrast: #ffffff;
  --ring: rgba(79, 70, 229, 0.18);

  --hero-from: #101828;
  --hero-to: #4f46e5;

  --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-hover: 0 18px 40px -18px rgba(16, 24, 40, 0.35);

  --radius: 16px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0b0d12;
  --surface: #14171f;
  --nav-bg: rgba(11, 13, 18, 0.76);

  --text: #f2f4f7;
  --text-2: #98a2b3;
  --muted: #667085;

  --border: #232732;
  --border-strong: #323847;

  --accent: #818cf8;
  --accent-2: #a78bfa;
  --accent-soft: rgba(129, 140, 248, 0.1);
  --accent-contrast: #0b0d12;
  --ring: rgba(129, 140, 248, 0.22);

  --hero-from: #f2f4f7;
  --hero-to: #a5b4fc;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 20px 44px -20px rgba(0, 0, 0, 0.85);
}

/* ==========================================================================
   基础
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 520px at 8% -8%, var(--accent-soft), transparent 62%),
    radial-gradient(760px 420px at 96% -12%, rgba(124, 58, 237, 0.08), transparent 60%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: var(--accent-contrast);
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   头部
   ========================================================================== */

.hero {
  padding: 76px 0 24px;
}

.hero-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 48px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--hero-from);
  background-image: linear-gradient(120deg, var(--hero-from) 20%, var(--hero-to));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  margin: 12px 0 0;
  font-size: 15px;
  color: var(--text-2);
}

.theme-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: color 0.18s, border-color 0.18s, transform 0.18s var(--ease);
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--ring);
}

.theme-toggle .icon {
  grid-area: 1 / 1;
}

.icon-sun {
  display: none;
}

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

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

/* ==========================================================================
   搜索
   ========================================================================== */

.search-wrap {
  position: relative;
  max-width: 620px;
  margin-top: 4px;
}

.search-wrap input {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 50px;
  padding: 0 92px 0 46px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 15px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s, box-shadow 0.18s;
}

.search-wrap input::placeholder {
  color: var(--muted);
}

.search-wrap input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--ring);
}

.search-wrap input::-webkit-search-decoration,
.search-wrap input::-webkit-search-cancel-button,
.search-wrap input::-webkit-search-results-button,
.search-wrap input::-webkit-search-results-decoration {
  -webkit-appearance: none;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.kbd-hint {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

kbd {
  font-family: inherit;
  font-size: 12px;
  line-height: 1;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 4px 7px;
}

.search-clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--text-2);
  cursor: pointer;
}

.search-clear:hover {
  color: var(--text);
}

.search-wrap.has-value .search-clear {
  display: flex;
}

.search-wrap.has-value .kbd-hint {
  display: none;
}

/* ==========================================================================
   分类导航
   ========================================================================== */

.cat-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  margin-top: 26px;
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-scroll {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding-top: 10px;
  padding-bottom: 10px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-scroll::-webkit-scrollbar {
  display: none;
}

.pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
  font: inherit;
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.16s, color 0.16s;
}

.pill:hover {
  background: var(--accent-soft);
  color: var(--text);
}

.pill[aria-current="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
}

.pill[aria-current="true"]:hover {
  background: var(--accent);
}

.pill:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--ring);
}

/* ==========================================================================
   列表
   ========================================================================== */

main.container {
  padding-top: 36px;
}

.site-section {
  margin-bottom: 44px;
  scroll-margin-top: 86px;
}

.site-section:last-child {
  margin-bottom: 16px;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.section-emoji {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-size: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-card);
}

.section-title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-count {
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 14px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    border-color 0.18s var(--ease);
  animation: card-in 0.45s var(--ease) backwards;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}

.card:focus-visible {
  outline: none;
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--ring), var(--shadow-hover);
}

/* 没有填写链接的条目：保留卡片外观，但不响应点击 */
.card-static {
  cursor: default;
}

.card-static:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: var(--shadow-card);
}

.card-top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.card-body {
  flex: 1;
  min-width: 0;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 5px;
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.card-title .name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.arrow {
  flex: 0 0 auto;
  display: inline-flex;
  color: var(--muted);
  opacity: 0;
  transform: translateX(-3px);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease),
    color 0.18s;
}

.card:hover .arrow,
.card:focus-visible .arrow {
  opacity: 1;
  transform: none;
  color: var(--accent);
}

.card-desc {
  margin: 4px 0 0;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-2);
}

.card-domain {
  margin-top: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono",
    monospace;
  font-size: 11.5px;
  letter-spacing: 0.01em;
  color: var(--muted);
}

/* 首字母图标 / favicon */
.avatar {
  position: relative;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 12px;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  user-select: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
}

.avatar-letter {
  position: relative;
  z-index: 1;
  transition: opacity 0.18s;
}

.avatar img {
  position: absolute;
  inset: 4px;
  z-index: 2;
  width: calc(100% - 8px);
  height: calc(100% - 8px);
  padding: 4px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.2s;
}

.avatar.has-icon img {
  opacity: 1;
}

.avatar.has-icon .avatar-letter {
  opacity: 0;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   空状态 / 页脚 / 回到顶部
   ========================================================================== */

.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 72px 20px 48px;
  text-align: center;
}

.empty-emoji {
  margin-bottom: 6px;
  font-size: 38px;
  line-height: 1;
}

.empty-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.empty-desc {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
}

.noscript {
  margin: 32px 0;
  color: var(--text-2);
}

.site-footer {
  margin-top: 48px;
  padding: 26px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--muted);
}

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

.dot {
  opacity: 0.6;
}

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  box-shadow: var(--shadow-card);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s var(--ease),
    color 0.18s, border-color 0.18s;
}

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

.to-top:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.to-top:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--ring);
}

/* ==========================================================================
   响应式 & 动效偏好
   ========================================================================== */

@media (max-width: 700px) {
  .container {
    padding: 0 18px;
  }

  .hero {
    padding: 52px 0 18px;
  }

  .cat-nav {
    margin-top: 20px;
  }

  .search-wrap input {
    height: 46px;
    padding-right: 20px;
  }

  .kbd-hint {
    display: none;
  }

  .search-wrap.has-value input {
    padding-right: 52px;
  }

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

  .site-section {
    margin-bottom: 36px;
    scroll-margin-top: 78px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}