/* =========================================================
   導覽列專用 navigation.css
   只針對 header / .top-header / .navigation 作用
   不動到全站其他內容
   ========================================================= */

/* ===============================
   Top header (logo + 右上連結 + 漢堡)
   =============================== */

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

body {
  font-family: 'Open Sans', Arial, sans-serif;
  margin: 0;
  padding: 0;
  height: 100%;
  min-height: 100vh;
  background-color: #eff5ef;
}
.govimg img{
  width: 100%;
  max-width: 1200px;
}
.govimg{
  margin-top: 30px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.top-header {
  background-color: #cfe4b5;
}

.top-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 16px;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 左邊 logo */
.top-header-logo img {
  display: block;
  width: 100%;
  max-width: 50vw;
}

/* 想讓 logo 再靠左一點可以改這個：負值往左、正值往右 */
/* 例如：margin-left: -40px; */
.top-header-logo {
  margin-left: 0;
}

/* 右側：文字連結 + 漢堡 */
.top-header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

/* 右上三個文字連結：LINE / 意見交流 / 交通資訊 */
.top-header-main {
  display: flex;
  align-items: center;
  gap: 24px;
  white-space: nowrap;
}

.top-header-main a {
  color: #524d4d;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 6px 0;
}
.top-header-main img{
  margin-top: -10px;
  max-width: 27px;
  width : 100%;
}

/* ===============================
   漢堡按鈕 & nav-toggle checkbox
   =============================== */

.navigation .nav-toggle {
  display: none; /* 隱藏 checkbox 本體 */
}

/* 漢堡 icon（桌機隱藏、手機顯示） */
.hamburger {
  display: none;          /* 預設：桌機不顯示，RWD 再打開 */
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.35);

  align-items: center;
  justify-content: center;
  flex-direction: column;
  cursor: pointer;
}

.hamburger-line {
  width: 18px;
  height: 2px;
  background: #333;
  margin: 3px 0;
}

/* ===============================
   Desktop main navigation bar
   =============================== */

.navigation {
  background: #154d10;   /* 深綠 bar */
}

/* 深綠橫向主選單 */
.navigation .main-menu {
  
  margin: 0 auto;
}

.navigation .main-menu ul {
  list-style: none;
  margin: 0 auto;
  padding: 0;

  display: flex;
  justify-content: center;
  align-items: stretch;
  margin-left: -350px;
}

.navigation .main-menu li {
  position: relative;
  font-size: 18px;
  font-weight: 600;
}

/* 第一層選單樣式 */
.navigation .main-menu > .drop-down-menu > li > a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 12px 10px;
  margin: 0 28px;
  line-height: 1.4;
}

.navigation .main-menu > .drop-down-menu > li > a:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

/* 子選單（第二層） */
.navigation .main-menu .drop-down-menu ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;

  min-width: 190px;
  margin: 0;
  padding: 4px 0;

  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 2000;
}

.navigation .main-menu .drop-down-menu ul li a {
  display: block;
  padding: 8px 14px;
  color: #524d4d;
  text-decoration: none;
  font-weight: 500;
  font-size: 18px;
}

.navigation .main-menu .drop-down-menu ul li a:hover {
  background: #f3f7f0;
}

/* 滑到父層 li 時展開子選單 */
.navigation .main-menu .drop-down-menu > li:hover > ul {
  display: block;
}

/* ===============================
   Side menu (手機 / 平板)
   =============================== */

/* 基本先關閉，media query 再開啟 */
.navigation .side-menu {
  display: none;
}

/* 側邊選單列表 */
.navigation .side-menu .drop-down-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* 第一層每個 li 的分隔線 */
.navigation .side-menu .drop-down-menu > li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* 第一層：純連結（無子選單） */
.navigation .side-menu .drop-down-menu > li > a {
  display: block;
  padding: 16px 24px;
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
}

.navigation .side-menu .drop-down-menu > li > a:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 有子選單的 li 標記 */
.navigation .side-menu .menu-has-children {
  position: relative;
}

/* radio 控制收合，隱藏本體 */
.navigation .side-menu .submenu-toggle {
  display: none;
}

/* 第一層 label 當按鈕 */
.navigation .side-menu .submenu-label {
  display: block;
  padding: 16px 24px;
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
}

.navigation .side-menu .submenu-label:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 子選單容器：預設收合 */
.navigation .side-menu .menu-has-children > ul {
  max-height: 0;
  overflow: hidden;
  background: #ffffff;
  margin: 0;
  padding: 0;
  transition: max-height 0.3s ease;
}

/* radio 被勾選 → 展開該組子選單 */
.navigation .side-menu .submenu-toggle:checked + .submenu-label + ul {
  max-height: 500px;
}

/* 子選單項目 */
.navigation .side-menu .menu-has-children > ul > li > a {
  display: block;
  padding: 12px 28px;
  background: #ecf5e3;
  color: #333333;
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid #e0e0e0;
}

.navigation .side-menu .menu-has-children > ul > li > a:hover {
  background: #f3f3f3;
}

/* 避免 side-menu 吃到桌機 dropdown 的絕對定位設定 */
.navigation .side-menu .drop-down-menu > li > ul {
  position: static;
  border: none;
  box-shadow: none;
}

/* ===============================
   Backdrop（側邊選單打開時的遮罩）
   =============================== */

.navigation .backdrop {
  display: none;
}

/* ===============================
   RWD: max-width 1020px（手機 / 平板）
   =============================== */

@media (max-width: 1020px) {

  .top-header-inner {
    padding: 8px 12px;
  }

  .top-header-main a {
    font-size: 14px;
  }

  /* 顯示漢堡按鈕 */
  .hamburger {
    display: inline-flex;
  }

  /* 深綠橫向 bar 改透明，只拿來放 nav 結構 */
  .navigation {
    background: transparent;
  }

  /* 桌機主選單在手機隱藏 */
  .navigation .main-menu {
    display: none;
  }

  /* 右側滑出 side-menu 本體 */
  .navigation .side-menu {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 80vw;
    height: 100vh;
    background: #154d10;
    color: #ffffff;
    transform: translateX(100%);  /* 預設藏起來 */
    transition: transform 0.3s ease;
    z-index: 3000;
    overflow-y: auto;
    padding-top: 16px;
  }

  /* 勾選 nav-toggle → 側邊選單滑出 */
  .navigation .nav-toggle:checked ~ .side-menu {
    transform: translateX(0);
  }

  /* 遮罩 */
  .navigation .nav-toggle:checked ~ .backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 2500;
  }
}

/* ===============================
   更小螢幕（例如手機直立）
   =============================== */

@media (max-width: 600px) {

  .top-header-inner {
    gap: 8px;
  }

  .top-header-main {
    gap: 12px;
  }

  .top-header-main a {
    font-size: 13px;
  }

  .hamburger {
    width: 36px;
    height: 36px;
  }
  /* 卡片左右邊再靠近一點、內距稍微放鬆 */
  .course-section {
    margin: 20px 10px;
    padding: 18px 14px 22px;
    border-radius: 12px;
  }

  /* 文字行距拉大，手機閱讀比較不擠 */
  .class-information p {
    line-height: 1.6;
    font-size: 14px;
  }

  .class-information .class-information-title {
    font-size: 16px;
  }

  
}