/* 暖黃色系主題 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

/* 導覽列啟用中狀態 */
.nav-button.active, .nav-button-mobile.active {
    color: #EA580C; /* text-orange-600 */
}
.nav-button.active {
    background-color: #FFEDD5; /* bg-orange-100 */
}
.nav-button-mobile.active {
    background-color: #FFF7ED; /* bg-orange-50 */
}

/* --- 顯示邏輯 (本地優先版) --- */

/* 預設隱藏 .view-content 和 彈窗 */
.view-content, #app-modal {
    display: none;
}

/* 主 App 永遠顯示 */
#app-container {
    display: block;
}

/* 登入/註冊表單預設隱藏 */
#auth-modal, #auth-register-form {
    display: none;
}

/* 用於 JS 切換顯示 */
.view-content.is-active {
    display: block;
}
#app-modal.is-active, #auth-modal.is-active {
    display: flex; 
}
/* --- 顯示邏輯修改結束 --- */


/* 彈窗背景 */
#app-modal-backdrop, #auth-modal-backdrop {
    background-color: rgba(0, 0, 0, 0.4);
}

/* 彈窗動畫 (簡易) */
#app-modal-content, #auth-modal-content {
    animation: slideUp 0.3s ease-out;
}
@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 禁用按鈕的樣式 */
button:disabled, select option:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #D1D5DB; /* bg-gray-300 */
    color: #6B7280; /* text-gray-500 */
}
select option:disabled {
    color: #9CA3AF; /* text-gray-400 */
}

/* 美化 select 下拉選單 */
select.modal-select-styled {
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25em;
    padding-right: 2.5rem; /* 確保文字不被箭頭遮擋 */
}