/* PolyLink Frontend Styles */

/* ===== CSS variables (overridable per-instance) ===== */
.polylink-switcher {
    --polylink-bg: transparent;
    --polylink-text: inherit;
    --polylink-border: #dcdcde;
    --polylink-radius: 4px;
    --polylink-gap: 8px;
    --polylink-padding-y: 6px;
    --polylink-padding-x: 12px;
    --polylink-active-bg: #2271b1;
    --polylink-active-text: #fff;
    --polylink-hover-bg: #f0f6fc;

    display: inline-block;
    color: var(--polylink-text);
    background: var(--polylink-bg);
    font-size: 14px;
}

.polylink-switcher--align-left   { display: flex; justify-content: flex-start; }
.polylink-switcher--align-center { display: flex; justify-content: center; }
.polylink-switcher--align-right  { display: flex; justify-content: flex-end; }
.polylink-switcher--align-wide,
.polylink-switcher--align-full   { display: flex; justify-content: center; }

/* ===== List mode ===== */
.polylink-switcher__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: inline-flex;
    gap: var(--polylink-gap);
    flex-wrap: wrap;
    background: var(--polylink-bg);
}

.polylink-switcher__item a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: inherit;
    padding: var(--polylink-padding-y) var(--polylink-padding-x);
    border-radius: var(--polylink-radius);
    transition: background-color .15s, color .15s;
}

.polylink-switcher__item a:hover {
    background: var(--polylink-hover-bg);
}

/* ===== Dropdown mode ===== */
.polylink-switcher__select {
    padding: var(--polylink-padding-y) var(--polylink-padding-x);
    border: 1px solid var(--polylink-border);
    border-radius: var(--polylink-radius);
    background: var(--polylink-bg);
    color: var(--polylink-text);
    font: inherit;
    cursor: pointer;
}

/* ===== Style: default ===== */
.polylink-switcher--style-default .polylink-switcher__item.is-current a {
    font-weight: 600;
}

/* ===== Style: pill ===== */
.polylink-switcher--style-pill .polylink-switcher__list {
    border-radius: 999px;
    padding: 4px;
    background: var(--polylink-bg, #f0f0f1);
}

.polylink-switcher--style-pill .polylink-switcher__item a {
    border-radius: 999px;
    padding: 4px 12px;
}

.polylink-switcher--style-pill .polylink-switcher__item.is-current a {
    background: var(--polylink-active-bg);
    color: var(--polylink-active-text);
}

/* ===== Style: bordered ===== */
.polylink-switcher--style-bordered .polylink-switcher__list {
    border: 1px solid var(--polylink-border);
    border-radius: var(--polylink-radius);
    padding: 4px;
}

.polylink-switcher--style-bordered .polylink-switcher__item a {
    border: 1px solid transparent;
    border-radius: var(--polylink-radius);
}

.polylink-switcher--style-bordered .polylink-switcher__item.is-current a {
    border-color: var(--polylink-active-bg);
    color: var(--polylink-active-bg);
}

/* ===== Style: minimal ===== */
.polylink-switcher--style-minimal .polylink-switcher__list {
    background: transparent;
    border: none;
}

.polylink-switcher--style-minimal .polylink-switcher__item a {
    padding: 4px 6px;
}

.polylink-switcher--style-minimal .polylink-switcher__item.is-current a {
    color: var(--polylink-active-bg);
    text-decoration: underline;
}

/* ===== Flags ===== */
.polylink-switcher__flag {
    margin-right: 4px;
    line-height: 1;
}

/* =========================================================================
 * 以下 4 种类型移植自 ref.html 演示（中/EN/ES/FR/DE 切换组件）：
 * hover-dropdown / click-dropdown / button-group / quick-switch
 * ========================================================================= */
.polylink-switcher--hover-dropdown,
.polylink-switcher--click-dropdown,
.polylink-switcher--button-group,
.polylink-switcher--quick-switch {
    --polylink-primary: #2d6cdf;
    --polylink-ref-text: #1f2937;
    --polylink-ref-text-light: #6b7280;
    --polylink-ref-bg: #ffffff;
    --polylink-ref-bg-hover: #f3f5f9;
    --polylink-ref-border: #e5e7eb;
    --polylink-ref-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
    --polylink-ref-radius: 10px;

    color: var(--polylink-ref-text);
    font-size: 14px;
}

/* ===== 悬浮下拉 / 点击下拉：触发器与浮层菜单 ===== */
.polylink-switcher--hover-dropdown,
.polylink-switcher--click-dropdown {
    position: relative;
    display: inline-block;
}

.polylink-switcher--hover-dropdown .polylink-switcher__trigger,
.polylink-switcher--click-dropdown .polylink-switcher__trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--polylink-ref-bg);
    border: 1px solid var(--polylink-ref-border);
    border-radius: var(--polylink-ref-radius);
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all .25s ease;
    user-select: none;
    list-style: none; /* details > summary 去默认样式 */
}

/* 去掉 summary 的默认三角标记 */
.polylink-switcher--click-dropdown .polylink-switcher__trigger::-webkit-details-marker {
    display: none;
}
.polylink-switcher--click-dropdown .polylink-switcher__trigger::marker {
    display: none;
    content: "";
}

.polylink-switcher--hover-dropdown .polylink-switcher__trigger:hover {
    border-color: var(--polylink-primary);
    box-shadow: 0 2px 10px rgba(45, 108, 223, .15);
}

.polylink-switcher--click-dropdown .polylink-switcher__trigger:hover {
    background: var(--polylink-ref-bg-hover);
}

.polylink-switcher--click-dropdown[open] .polylink-switcher__trigger {
    border-color: var(--polylink-primary);
    box-shadow: 0 2px 10px rgba(45, 108, 223, .15);
}

.polylink-switcher--hover-dropdown .polylink-switcher__arrow,
.polylink-switcher--click-dropdown .polylink-switcher__arrow {
    margin-left: 4px;
    font-size: 10px;
    color: var(--polylink-ref-text-light);
    transition: transform .25s ease;
}

.polylink-switcher--hover-dropdown:hover .polylink-switcher__arrow,
.polylink-switcher--click-dropdown[open] .polylink-switcher__arrow {
    transform: rotate(180deg);
}

.polylink-switcher--hover-dropdown .polylink-switcher__menu,
.polylink-switcher--click-dropdown .polylink-switcher__menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 190px;
    background: var(--polylink-ref-bg);
    border-radius: var(--polylink-ref-radius);
    box-shadow: var(--polylink-ref-shadow);
    border: 1px solid var(--polylink-ref-border);
    padding: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all .22s ease;
    z-index: 999;
}

.polylink-switcher--click-dropdown .polylink-switcher__menu {
    transform: scale(.96) translateY(-6px);
    transform-origin: top left;
    transition: all .18s ease;
}

.polylink-switcher--hover-dropdown:hover .polylink-switcher__menu,
.polylink-switcher--hover-dropdown .polylink-switcher__menu:hover,
.polylink-switcher--click-dropdown[open] .polylink-switcher__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.polylink-switcher--hover-dropdown .polylink-switcher__menu-item,
.polylink-switcher--click-dropdown .polylink-switcher__menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--polylink-ref-text);
    font-size: 14px;
    text-decoration: none;
    transition: background .18s ease;
}

.polylink-switcher--hover-dropdown .polylink-switcher__menu-item:hover,
.polylink-switcher--click-dropdown .polylink-switcher__menu-item:hover {
    background: var(--polylink-ref-bg-hover);
}

.polylink-switcher--hover-dropdown .polylink-switcher__menu-item.is-current,
.polylink-switcher--click-dropdown .polylink-switcher__menu-item.is-current {
    color: var(--polylink-primary);
    font-weight: 600;
    background: rgba(45, 108, 223, .08);
}

.polylink-switcher--hover-dropdown .polylink-switcher__check,
.polylink-switcher--click-dropdown .polylink-switcher__check {
    margin-left: auto;
    color: var(--polylink-primary);
    font-size: 12px;
}

/* ===== 无边框简写按钮组（中 / EN / ES / FR / DE） ===== */
.polylink-switcher--button-group {
    display: inline-flex;
    align-items: center;
    background: transparent;
    padding: 4px;
    border-radius: 999px;
    gap: 2px;
}

.polylink-switcher--button-group .polylink-switcher__group-item {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--polylink-ref-text-light);
    border-radius: 999px;
    letter-spacing: .4px;
    text-decoration: none;
    transition: all .2s ease;
    position: relative;
}

.polylink-switcher--button-group .polylink-switcher__group-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -2px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 12px;
    background: var(--polylink-ref-border);
}

.polylink-switcher--button-group .polylink-switcher__group-item:hover {
    color: var(--polylink-primary);
}

.polylink-switcher--button-group .polylink-switcher__group-item.is-current {
    color: #fff;
    background: var(--polylink-primary);
    box-shadow: 0 3px 10px rgba(45, 108, 223, .35);
}

.polylink-switcher--button-group .polylink-switcher__group-item.is-current::after {
    display: none;
}

/* ===== 无边框双语言快切（中文 ⇄ EN） ===== */
.polylink-switcher--quick-switch {
    display: inline-flex;
    align-items: center;
    gap: 0;
    background: transparent;
    cursor: pointer;
    user-select: none;
    padding: 6px 4px;
    border-radius: 999px;
    text-decoration: none;
    transition: background .2s ease;
}

.polylink-switcher--quick-switch:hover {
    background: var(--polylink-ref-bg-hover);
}

.polylink-switcher--quick-switch .polylink-switcher__quick-lang {
    font-size: 14px;
    font-weight: 600;
    padding: 4px 8px;
    color: var(--polylink-ref-text-light);
    transition: all .2s ease;
}

.polylink-switcher--quick-switch .polylink-switcher__quick-lang.is-current {
    color: var(--polylink-primary);
}

.polylink-switcher--quick-switch .polylink-switcher__quick-divider {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--polylink-ref-text-light);
    transition: transform .3s ease;
}

.polylink-switcher--quick-switch:hover .polylink-switcher__quick-divider {
    transform: rotate(180deg);
}

/* ===== 移动端适配 ===== */
@media (max-width: 480px) {
    .polylink-switcher--hover-dropdown .polylink-switcher__trigger,
    .polylink-switcher--click-dropdown .polylink-switcher__trigger {
        font-size: 13px;
        padding: 8px 12px;
    }

    .polylink-switcher--button-group .polylink-switcher__group-item {
        padding: 7px 10px;
        font-size: 12px;
    }
}