/*
 * 網站總覽面板（header「總覽」鈕觸發）。
 * 定位：navbar 的補充，不是替代——navbar 維持原樣，這裡一頁攤開全站入口。
 * 視覺遵循 docs/design.md：深色帶用 --c-ink #232020、深底金字一律亮金 #E5A300；
 * 觸發鈕用行銷藥丸語言（radius 50px）。原生 popover，main.js 提供舊瀏覽器退路。
 */

/* 觸發鈕：與 navbar 連字並排，三種 header 狀態（金底／透明／捲動黑底）都可讀 */
.navbar {
  display: flex;
  align-items: center;
}

.site-overview-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: 30px;
  padding: 7px 16px;
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .6);
  border-radius: 50px;
  font-family: "Open Sans", sans-serif;
  font-size: 13px;
  letter-spacing: .06em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .25s ease, background-color .25s ease, border-color .25s ease;
}

.site-overview-trigger i {
  font-size: 14px;
  line-height: 0;
}

.site-overview-trigger:hover,
.site-overview-trigger:focus-visible {
  color: #232020;
  background: #fff;
  border-color: #fff;
}

.site-overview-trigger:focus-visible {
  outline: 3px solid #F5C53B;
  outline-offset: 3px;
}

@media (max-width: 991px) {
  .site-overview-trigger {
    margin-right: 18px;
    margin-left: 0;
  }

  /* 行動版選單全屏展開時，總覽鈕交還畫面給白色選單 */
  .navbar-mobile .site-overview-trigger {
    display: none;
  }
}

/* 面板本體：原生 popover 進頂層；.is-open 是無 popover 支援時的 JS 退路 */
.site-overview {
  width: 100%;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0 clamp(20px, 5vw, 72px) 48px;
  overflow: auto;
  color: #fff;
  background:
    radial-gradient(circle at 88% 6%, rgba(229, 163, 0, .13), transparent 30%),
    #232020;
  border: 0;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity .22s ease, transform .22s ease, overlay .22s allow-discrete, display .22s allow-discrete;
}

.site-overview:popover-open,
.site-overview.is-open {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateY(0);
}


.site-overview.is-open {
  position: fixed;
  z-index: 10000;
  inset: 0;
}

@starting-style {
  .site-overview:popover-open {
    opacity: 0;
    transform: translateY(-10px);
  }
}

.site-overview::backdrop {
  background: rgba(0, 0, 0, .6);
}

body.site-overview-open {
  overflow: hidden;
}

.site-overview__bar {
  position: sticky;
  z-index: 2;
  top: 0;
  flex: 0 0 auto;
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(35, 32, 32, .94);
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.site-overview__brand {
  color: rgba(255, 255, 255, .66);
  font-family: "Open Sans", sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
}

.site-overview__close {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 0;
  color: rgba(255, 255, 255, .78);
  background: transparent;
  border: 0;
  font: 600 12px/1 "Open Sans", sans-serif;
  letter-spacing: .14em;
  cursor: pointer;
}

.site-overview__close-x {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #232020;
  background: #fff;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
}

.site-overview__close:hover .site-overview__close-x {
  background: #E5A300;
}

.site-overview__close:focus-visible {
  outline: 3px solid #F5C53B;
  outline-offset: 3px;
}

/* margin-top:auto ＋ grid 的 margin-bottom:auto：高視窗時內容垂直置中，
   內容超過視窗高則自動歸零、正常捲動 */
.site-overview__intro {
  width: 100%;
  max-width: 1240px;
  margin: auto auto 0;
  padding: clamp(30px, 5vh, 56px) 0 clamp(22px, 4vh, 40px);
  color: #fff;
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 700;
  line-height: 1.3;
}

.site-overview__grid {
  display: grid;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 48px) clamp(28px, 4vw, 56px);
  padding-bottom: 16px;
}

.site-overview__grid section {
  min-width: 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.site-overview__grid h3 {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .04em;
  color: #E5A300;
}

.site-overview__grid h3 a {
  color: #E5A300;
  text-decoration: none;
}

.site-overview__grid h3 a:hover {
  color: #F5C53B;
  text-decoration: underline;
  text-underline-offset: 5px;
}

.site-overview__links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.site-overview__links a {
  display: inline-block;
  color: rgba(255, 255, 255, .8);
  font-size: 14px;
  line-height: 2;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 5px;
  transition: color .2s ease, text-decoration-color .2s ease;
}

.site-overview__links a:hover,
.site-overview__links a:focus-visible {
  color: #fff;
  text-decoration-color: #E5A300;
}

.site-overview__links a:focus-visible {
  outline: 3px solid #F5C53B;
  outline-offset: 2px;
}

@media (max-width: 1100px) {
  .site-overview__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .site-overview__bar {
    min-height: 60px;
  }

  .site-overview__grid {
    display: block;
  }

  .site-overview__grid section {
    margin-bottom: 26px;
  }

  .site-overview__close-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-overview,
  .site-overview-trigger,
  .site-overview__links a {
    transition: none;
  }
}