/* CSS 層級的文字選取保護 */
body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 允許表單欄位可選取與輸入 */
input,
textarea,
select,
[contenteditable="true"] {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* 圖片保護（禁止拖曳） */
img {
    pointer-events: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
}

/* 作品集／燈箱圖片需可點擊 */
.portfolio-item img,
.gallery-item img,
.image-modal img,
.work-item img {
    pointer-events: auto;
}

/* 連結與互動元件可點擊 */
a,
button,
.cta-button,
.nav-toggle,
.burger,
.filter-btn,
.tab-btn,
.close-modal,
.floating-icon,
.back-to-top {
    pointer-events: auto;
}