/* ==========================================================
   Scenic Iceland — 导航
   基础规则取自 design-src/tour-styles.css，末尾补充设计稿未覆盖的
   移动端抽屉与搜索覆盖层。
   ========================================================== */

/* ============== NAV (identical to index.html) ============== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  max-width: var(--container); margin: 0 auto;
  padding: 1rem var(--space-4);
  display: flex; align-items: center; justify-content: space-between;
}
.logo { text-decoration: none; display: flex; align-items: center; gap: 0.7rem; }
.logo-icon { width: 48px; height: 36px; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-name { font-size: 1.15rem; font-weight: 800; letter-spacing: 0.12em; color: var(--color-text); }
.logo-tag { font-size: 0.62rem; font-weight: 600; letter-spacing: 0.32em; color: var(--color-accent); margin-top: 4px; }

.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  color: var(--color-text-secondary); text-decoration: none;
  font-size: 0.875rem; font-weight: 500; transition: var(--transition);
}
.nav-links a:hover { color: var(--color-text); }
.nav-links a.is-current {
  color: var(--color-text); font-weight: 600;
  background: var(--color-meadow); padding: 0.35rem 0.85rem; border-radius: 100px;
}
.nav-actions { display: flex; align-items: center; gap: 1rem; }
.nav-select-group {
  display: flex; align-items: center; gap: 0.25rem;
  background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 0.1rem;
}
.nav-select { position: relative; display: inline-block; }
.nav-select-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.75rem; background: transparent; border: none; cursor: pointer;
  font-family: inherit; font-size: 0.875rem; font-weight: 500;
  color: var(--color-text); border-radius: 4px; transition: var(--transition); white-space: nowrap;
}
.nav-select-btn:hover { background: var(--color-mist); }
.nav-select-btn svg { width: 10px; height: 10px; stroke: var(--color-text-muted); stroke-width: 2.5; fill: none; transition: transform var(--transition); }
.nav-select.open .nav-select-btn svg { transform: rotate(180deg); }
.nav-select-menu {
  position: absolute; top: calc(100% + 0.5rem); left: 0; min-width: 160px;
  background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: 8px; padding: 0.35rem;
  box-shadow: 0 10px 30px rgba(15, 62, 84, 0.12);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: var(--transition); z-index: 200;
}
.nav-select.open .nav-select-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-select-item {
  display: block; width: 100%; padding: 0.55rem 0.75rem; background: transparent;
  border: none; text-align: left; cursor: pointer; font-family: inherit;
  font-size: 0.875rem; color: var(--color-text); border-radius: 5px;
  transition: background var(--transition);
}
.nav-select-item:hover { background: var(--color-mist); }
.nav-select-item.active { background: var(--color-meadow); color: var(--color-grass-deep); font-weight: 600; }
.nav-divider { width: 1px; height: 22px; background: var(--color-border); }
.nav-search {
  width: 40px; height: 40px; background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: 10px; display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: var(--transition); box-shadow: 0 2px 8px rgba(15, 62, 84, 0.06);
}
.nav-search:hover { border-color: var(--color-accent-bright); background: var(--color-sky-soft); transform: translateY(-1px); }
.nav-search svg { width: 16px; height: 16px; stroke: var(--color-text); stroke-width: 2; fill: none; }

/* ============== BUTTONS ============== */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.25rem; border-radius: var(--radius);
  font-size: 0.875rem; font-weight: 600; text-decoration: none;
  cursor: pointer; transition: var(--transition); border: none; letter-spacing: -0.01em;
}
.btn-primary { background: var(--gradient-cta); color: white; box-shadow: 0 6px 20px rgba(110, 192, 74, 0.32); }
.btn-primary:hover { box-shadow: 0 10px 28px rgba(110, 192, 74, 0.45); transform: translateY(-2px); }
.btn-outline { background: var(--color-white); color: var(--color-accent); border: 1.5px solid var(--color-accent-bright); }
.btn-outline:hover { background: var(--color-sky-soft); border-color: var(--color-accent); color: var(--color-accent); }
.btn-lg { padding: 1rem 1.75rem; font-size: 0.95rem; }
.btn-block { display: flex; width: 100%; justify-content: center; }


/* ---------- 以下为设计稿未覆盖、由本主题补齐的交互 ---------- */

/* 汉堡按钮：设计稿在 768px 以下直接隐藏导航链接，没给替代入口 */
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  cursor: pointer;
  align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--color-accent-bright); background: var(--color-sky-soft); }
.nav-toggle svg { width: 18px; height: 18px; stroke: var(--color-text); stroke-width: 2; fill: none; stroke-linecap: round; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* 搜索覆盖层：设计稿只画了图标，没有展开态 */
.nav-search-overlay {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(15, 62, 84, 0.45);
  backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden;
  transition: var(--transition);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 12vh var(--space-4) var(--space-4);
}
.nav-search-overlay.open { opacity: 1; visibility: visible; }
.nav-search-panel {
  width: 100%; max-width: 640px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(15, 62, 84, 0.28);
  padding: var(--space-3);
  transform: translateY(-12px);
  transition: var(--transition);
}
.nav-search-overlay.open .nav-search-panel { transform: translateY(0); }
.nav-search-form { display: flex; gap: 0.6rem; }
.nav-search-input {
  flex: 1;
  padding: 0.9rem 1.1rem;
  font-family: inherit; font-size: 1rem; color: var(--color-text);
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.nav-search-input::placeholder { color: var(--color-text-muted); }
.nav-search-input:focus { outline: none; border-color: var(--color-accent-bright); background: var(--color-white); }
.nav-search-hint {
  margin-top: 0.75rem; font-size: 0.8rem; color: var(--color-text-muted);
  display: flex; align-items: center; gap: 0.4rem;
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  /* 移动端抽屉 */
  .nav-links.is-open {
    display: flex;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-1) var(--space-4) var(--space-3);
  }
  .nav-links.is-open li { border-top: 1px solid var(--color-border); }
  .nav-links.is-open a { display: block; padding: 0.95rem 0; font-size: 0.95rem; }
  .nav-links.is-open a.is-current { display: inline-block; margin: 0.5rem 0; }
}

@media (max-width: 620px) {
  .nav-inner { padding: 0.75rem var(--space-2); }
  .logo-icon { width: 40px; height: 30px; }
  .logo-name { font-size: 1rem; }
  .logo-tag { font-size: 0.55rem; letter-spacing: 0.28em; }

  /* 头部横向放不下语言 + 币种 + 搜索 + 汉堡四组控件，
     因此把选择器组整个搬进抽屉（搬运由 nav.js 完成，
     移动的是同一个 DOM 节点，不做复制）。
     早期版本是直接 display:none 把币种藏掉 —— 那等于让移动端
     用户完全无法切换币种，是功能缺失而不是布局取舍。 */
  .nav-actions > .nav-select-group { display: none; }

  .nav-links.is-open .nav-select-group {
    display: flex;
    margin: var(--space-2) 0 0;
    width: 100%;
    justify-content: space-between;
  }
  .nav-links.is-open .nav-select-group .nav-select { flex: 1; }
  .nav-links.is-open .nav-select-btn { width: 100%; justify-content: space-between; }
  .nav-links.is-open .nav-select-menu { left: 0; right: 0; min-width: 0; }
}

/* 登录状态下 WordPress 会在页面最上方插入 32px 的管理条，
   固定导航必须整体下移，否则 logo 被压在管理条底下。 */
body.admin-bar .nav { top: 32px; }
body.admin-bar .nav-search-overlay { top: 32px; }

@media screen and (max-width: 782px) {
  /* 管理条在窄屏是 46px，且不再固定定位 */
  body.admin-bar .nav { top: 46px; }
  body.admin-bar .nav-search-overlay { top: 46px; }
}