/* 環山雅築 Mountain Lodge — 全站共用頁首／頁尾
   單一來源：11 個頁面共用同一份 .ml-nav / .ml-footer 樣式。

   設計約束：
   1) 本檔同時被 style.css（首頁、聯絡、隱私權、服務條款）與 mountainlodge.css
      （其餘內頁）兩套版面載入，兩者的 :root 變數命名不同且互相衝突，
      因此這裡一律使用 --ml-* 私有變數，並掛在 .ml-nav / .ml-footer 上，
      不碰任何 :root，確保不汙染宿主頁面的版面基準。
   2) style.css 自己也有 .nav__links / .nav__burger / .nav__cta 規則，
      故本檔的對應選擇器一律加上 .ml-nav 前綴提高權重，避免被覆蓋。
   3) 於各頁 CSS 之後載入。 */

.ml-nav,
.ml-footer {
  --ml-forest: #26352d;
  --ml-forest-deep: #17221c;
  --ml-white: #fffdf8;
  --ml-rust: #b85f36;
  --ml-gold: #c99a58;
  --ml-line: rgba(38, 53, 45, .16);
  --ml-serif: "Noto Serif TC", serif;
  --ml-latin: "Cormorant Garamond", serif;
  --ml-gutter: max(5vw, calc((100vw - 1380px) / 2));
}

/* 自帶重置：不倚賴宿主頁面的 reset，兩套版面下外觀一致 */
.ml-nav *,
.ml-footer * { box-sizing: border-box; }
.ml-nav a,
.ml-footer a { color: inherit; text-decoration: none; }
.ml-nav p,
.ml-footer h2,
.ml-footer p { margin: 0; }
.ml-nav button { font: inherit; }

/* ── 頁首 ── */
.ml-nav {
  position: fixed;
  z-index: 1100;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: 76px;
  padding: .85rem var(--ml-gutter);
  color: var(--ml-white);
  transition: background .35s, color .35s, box-shadow .35s, min-height .35s;
}
.ml-nav.is-solid {
  min-height: 64px;
  background: rgba(245, 241, 232, .95);
  color: var(--ml-forest);
  box-shadow: 0 1px 0 var(--ml-line);
  backdrop-filter: blur(14px);
}
.ml-nav .ml-brand { display: flex; align-items: center; gap: .8rem; flex: none; }
.ml-nav .ml-brand__mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--ml-serif);
  font-size: 1.2rem;
  font-weight: 700;
}
.ml-nav .ml-brand__name {
  font-family: var(--ml-serif);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.25;
}
.ml-nav .ml-brand__name small {
  display: block;
  margin-top: .25rem;
  font-family: var(--ml-latin);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .23em;
}
.ml-nav .nav__links { display: flex; align-items: center; gap: clamp(.8rem, 1.6vw, 1.55rem); margin-left: auto; }
.ml-nav .nav__links a {
  position: relative;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .12em;
  white-space: nowrap;
}
.ml-nav .nav__links a::after {
  position: absolute;
  right: 0;
  bottom: -.35rem;
  left: 0;
  height: 1px;
  content: "";
  transform: scaleX(0);
  background: var(--ml-gold);
  transition: transform .25s;
}
.ml-nav .nav__links a:hover::after,
.ml-nav .nav__links a.is-active::after,
.ml-nav .nav__links a.is-current::after { transform: scaleX(1); }
.ml-nav .nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: 0;
  background: transparent;
  padding: .5rem;
  cursor: pointer;
  color: inherit;
}
.ml-nav .nav__burger span { width: 24px; height: 2px; background: currentColor; transition: .3s; }

/* ── 頁尾 ── */
.ml-footer { background: var(--ml-forest-deep); color: rgba(255, 253, 248, .7); padding: 4rem var(--ml-gutter) 2rem; }
.ml-footer__grid { display: grid; grid-template-columns: 1.3fr 1fr auto; gap: clamp(2rem, 6vw, 6rem); padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255, 253, 248, .13); }
.ml-footer h2 { color: var(--ml-white); font-family: var(--ml-serif); font-size: 1.45rem; letter-spacing: .14em; }
.ml-footer h2 small { display: block; margin-top: .25rem; color: var(--ml-gold); font-family: var(--ml-latin); font-size: .55em; font-style: italic; letter-spacing: .2em; }
.ml-footer p { margin-top: .75rem; font-size: .84rem; line-height: 1.9; }
.ml-footer__nav { display: grid; grid-template-columns: repeat(2, minmax(100px, 1fr)); gap: .5rem 1.5rem; align-content: start; }
.ml-footer__nav a { font-size: .82rem; letter-spacing: .08em; }
.ml-footer__nav a:hover { color: var(--ml-gold); }
.ml-footer__legal { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem 1.4rem; margin-top: 1.8rem; font-size: .78rem; letter-spacing: .12em; color: rgba(255, 253, 248, .55); }
.ml-footer__legal a:hover { color: var(--ml-gold); }
.ml-footer__copy { margin-top: .9rem; margin-bottom: 0; text-align: center; font-size: .75rem; letter-spacing: .15em; }

/* ── 響應式 ── */
@media (max-width: 1080px) {
  .ml-nav .nav__links { gap: .8rem; }
  .ml-nav .nav__links a { font-size: .75rem; letter-spacing: .07em; }
}

@media (max-width: 860px) {
  .ml-nav { gap: 1rem; }
  .ml-nav .nav__links {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
    margin: 0;
    background: rgba(23, 34, 28, .98);
    color: var(--ml-white);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
  }
  .ml-nav .nav__links.is-open { opacity: 1; pointer-events: auto; }
  .ml-nav .nav__links a { font-size: 1.05rem; letter-spacing: .14em; }
  .ml-nav .nav__burger { z-index: 2; display: flex; margin-left: auto; }
  .ml-nav .nav__burger.is-open { color: var(--ml-white); }
  .ml-nav .nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .ml-nav .nav__burger.is-open span:nth-child(2) { opacity: 0; }
  .ml-nav .nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .ml-footer__grid { grid-template-columns: 1fr 1fr; }
  .ml-footer__nav { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .ml-nav,
  .ml-footer { --ml-gutter: 1.25rem; }
  .ml-nav .ml-brand__name { font-size: .9rem; }
  .ml-nav .ml-brand__mark { width: 38px; height: 38px; }
  .ml-footer__grid { grid-template-columns: 1fr; }
  .ml-footer__nav { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .ml-nav,
  .ml-nav *,
  .ml-footer * { transition-duration: .01ms !important; }
}