/* 星际导航 —— 样式
 * 颜色、尺寸都集中在 :root 里，想微调可以从这里改。 */

@font-face {
  font-family: "Clock";
  src: url("../fonts/clock-extralight.woff") format("woff");
  font-weight: 200;
  font-display: swap;
}

:root {
  --void: #03050c;
  --deep: #0a1532;
  --star: #edf1ff;          /* 主文字：星光白 */
  --dust: #93a0c2;          /* 次要文字：星尘灰蓝 */
  --ember: #ffcf8a;         /* 点缀：暖色恒星光，只用在焦点和悬停 */
  --line: rgba(196, 212, 255, 0.16);
  --panel: rgba(12, 20, 44, 0.5);
  --max: 1040px;
  --icon: 44px;
  --cols: auto-fill;
  --tile-min: 92px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei UI", "Microsoft YaHei",
          "Noto Sans CJK SC", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system,
          "Segoe UI", sans-serif;
}

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

html { background: var(--void); }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  color: var(--star);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  /* 画布加载前先显示的底色，和星空保持一致，避免闪白 */
  background:
    radial-gradient(90% 70% at 24% 18%, #13224a 0%, transparent 60%),
    radial-gradient(120% 120% at 70% 100%, #070c1d 0%, #03050c 70%);
  background-attachment: fixed;
}

/* ---------- 背景 ---------- */
#sky {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0;
  transition: opacity 1.8s ease;
  pointer-events: none;
}
#sky.ready { opacity: 1; }

#sky-image {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  display: none;
}
#sky-image.on { display: block; }
#sky-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(3, 5, 12, var(--dim, 0.35));
}

/* ---------- 主体 ---------- */
main {
  position: relative;
  z-index: 1;
  max-width: calc(var(--max) + 48px);
  margin: 0 auto;
  padding: clamp(44px, 10vh, 120px) 24px 48px;
}

.hero { text-align: center; }

.clock {
  display: block;
  font-family: "Clock", var(--font);
  font-weight: 200;
  font-size: clamp(80px, 11vw, 136px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1, "case" 1;
  text-shadow: 0 0 48px rgba(150, 180, 255, 0.28);
  user-select: none;
}
.clock .sep { opacity: 0.5; margin: 0 0.02em; }
.clock .sec { font-size: 0.42em; letter-spacing: 0; opacity: 0.55; margin-left: 0.12em; }
.clock .ampm { font-family: var(--font); font-size: 0.16em; letter-spacing: 0.08em; opacity: 0.6; margin-left: 0.4em; vertical-align: 0.9em; }

.date {
  margin: 18px 0 0;
  color: var(--dust);
  font-size: 15px;
  letter-spacing: 0.06em;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}

/* ---------- 搜索 ---------- */
.search {
  position: relative;
  z-index: 10;            /* 下拉菜单要盖住下面的图标 */
  max-width: 580px;
  margin: 38px auto 0;
  text-align: left;
}

.search-box {
  display: flex;
  align-items: center;
  height: 52px;
  padding: 0 6px 0 8px;
  border-radius: 26px;
  background: rgba(10, 17, 40, 0.55);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 10px 40px -12px rgba(0, 0, 0, 0.6);
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.search-box:focus-within {
  border-color: rgba(255, 207, 138, 0.45);
  background: rgba(12, 20, 46, 0.72);
  box-shadow: 0 10px 40px -12px rgba(0, 0, 0, 0.6), 0 0 0 4px rgba(255, 207, 138, 0.08);
}

.engine {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 36px;
  padding: 0 10px 0 12px;
  border: 0;
  border-radius: 18px;
  background: transparent;
  color: var(--dust);
  font: inherit;
  font-size: 14px;
  white-space: nowrap;
  cursor: pointer;
}
.engine:hover, .engine[aria-expanded="true"] { color: var(--star); background: rgba(255, 255, 255, 0.06); }
.engine svg { width: 12px; height: 12px; }

#q {
  flex: 1;
  min-width: 0;
  height: 100%;
  padding: 0 8px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--star);
  font: inherit;
  font-size: 16px;
}
#q::placeholder { color: rgba(147, 160, 194, 0.7); }
#q::-webkit-search-cancel-button { display: none; }

.go {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--dust);
  cursor: pointer;
}
.go:hover { color: var(--star); background: rgba(255, 255, 255, 0.06); }
.go svg { width: 19px; height: 19px; }

.menu {
  position: absolute;
  z-index: 5;
  top: calc(100% + 8px);
  left: 0;
  min-width: 160px;
  margin: 0;
  padding: 6px;
  list-style: none;
  border-radius: 16px;
  background: rgba(10, 16, 38, 0.95);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 50px -10px rgba(0, 0, 0, 0.7);
}
.menu.suggest { right: 0; }
.menu li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 10px;
  cursor: pointer;
  color: var(--star);
  font-size: 14px;
}
.menu li[aria-selected="true"], .menu li:hover { background: rgba(255, 255, 255, 0.07); }
.menu li .host { margin-left: auto; color: var(--dust); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 50%; }
.menu li .icon { --icon: 24px; border-radius: 7px; }
.menu li .tick { margin-left: auto; color: var(--ember); }

/* ---------- 分组与链接 ---------- */
.groups { margin-top: clamp(44px, 7vh, 72px); }

.group + .group { margin-top: 28px; }

.group.panel {
  padding: 18px 18px 14px;
  border-radius: 20px;
  background: var(--panel);
  border: 1px solid rgba(196, 212, 255, 0.08);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 6px;
  padding: 0 8px;
  color: var(--dust);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.7);
}
.group-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(196, 212, 255, 0.2), rgba(196, 212, 255, 0));
}

.links {
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(var(--tile-min), 1fr));
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 12px 4px 10px;
  border-radius: 16px;
  color: var(--star);
  text-decoration: none;
  outline: none;
  transition: background-color 0.2s;
}
.link .name {
  max-width: 100%;
  font-size: 13px;
  line-height: 1.3;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
}
.link .text { display: block; min-width: 0; max-width: 100%; }
.link .name { display: block; }
.link .desc { display: none; }

.link:hover { background: rgba(196, 212, 255, 0.06); }
.link:hover .icon,
.link:focus-visible .icon {
  box-shadow: 0 0 0 1px rgba(255, 207, 138, 0.55), 0 0 26px 2px rgba(255, 207, 138, 0.28);
}
.link:focus-visible { background: rgba(196, 212, 255, 0.08); box-shadow: inset 0 0 0 1.5px rgba(255, 207, 138, 0.7); }

/* 固定列数（config.js 里 columns 大于 0 时） */
.links.fixed { grid-template-columns: repeat(var(--n), minmax(0, 1fr)); }

/* 图标 */
.icon {
  position: relative;
  flex: none;
  display: grid;
  place-items: center;
  width: var(--icon);
  height: var(--icon);
  border-radius: calc(var(--icon) * 0.28);
  overflow: hidden;
  background: rgba(236, 241, 255, 0.94);
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, 0.6);
  transition: box-shadow 0.25s;
}
.icon img { width: 62%; height: 62%; object-fit: contain; }
.icon .letter {
  font-size: calc(var(--icon) * 0.42);
  font-weight: 600;
  line-height: 1;
  color: hsl(var(--h, 222) 45% 38%);
}
.icon .emoji { font-size: calc(var(--icon) * 0.52); line-height: 1; }

.icon-glass .icon { background: rgba(196, 212, 255, 0.1); border: 1px solid rgba(196, 212, 255, 0.14); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.icon-glass .icon .letter { color: hsl(var(--h, 222) 70% 82%); }

/* 行式布局：图标在左，名字 + 备注在右 */
.links.row { --tile-min: 210px; }
.links.row .link { flex-direction: row; gap: 12px; padding: 10px 12px; }
.links.row .link .text { min-width: 0; }
.links.row .link .name { display: block; text-align: left; font-size: 14px; }
.links.row .link .desc {
  display: block;
  margin-top: 1px;
  color: var(--dust);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
}

/* ---------- 页脚与提示 ---------- */
.foot {
  margin-top: 64px;
  text-align: center;
  color: rgba(147, 160, 194, 0.6);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.foot:empty { display: none; }
.foot kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 0.4em;
  border: 1px solid rgba(147, 160, 194, 0.35);
  border-radius: 5px;
  font: inherit;
  line-height: 1.5;
}

.notice {
  max-width: 560px;
  margin: 48px auto 0;
  padding: 18px 22px;
  border-radius: 16px;
  background: rgba(40, 14, 20, 0.7);
  border: 1px solid rgba(255, 140, 140, 0.35);
  color: #ffd9d9;
  font-size: 14px;
  line-height: 1.7;
}
.notice code { color: #fff; }

/* ---------- 进场：只有一个，时钟和搜索框随星空一起浮现 ---------- */
.hero > * { animation: rise 1.1s cubic-bezier(.2, .7, .2, 1) both; }
.hero .date { animation-delay: 0.08s; }
.hero .search { animation-delay: 0.16s; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }

/* ---------- 手机 ---------- */
@media (max-width: 640px) {
  main { padding: clamp(40px, 9vh, 80px) 14px 36px; }
  .clock { font-size: clamp(72px, 22vw, 104px); }
  .date { font-size: 14px; margin-top: 12px; }
  .search { margin-top: 28px; }
  .search-box { height: 48px; }
  .engine { padding: 0 6px 0 10px; }
  :root { --tile-min: 74px; }
  .link { padding: 12px 2px 10px; gap: 8px; }
  .link .name { font-size: 12px; }
  .groups { margin-top: 40px; }
  .group + .group { margin-top: 26px; }
  .links.row { --tile-min: 100%; }
  .links.fixed { grid-template-columns: repeat(auto-fill, minmax(var(--tile-min), 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .hero > * { animation: none; }
  #sky { transition: none; }
}

/* ---------- 右下角的「编辑导航」按钮 ---------- */
.edit-fab {
  position: fixed;
  z-index: 20;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(10, 17, 40, 0.5);
  color: var(--dust);
  opacity: 0.6;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: opacity 0.2s, color 0.2s, border-color 0.2s;
}
.edit-fab svg { width: 18px; height: 18px; }
.edit-fab:hover, .edit-fab:focus-visible { opacity: 1; color: var(--ember); border-color: rgba(255, 207, 138, 0.5); outline: none; }