/**
 * Header Actions Styles
 * 页头操作按钮样式
 * 
 * @package Forum_Theme
 */

/* ==========================================================================
   Header Layout
   ========================================================================== */

.header-inner {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
}

/* 左侧：Logo + 导航菜单 */
.header-left {
    display: flex;
    align-items: center;
    gap: 18px;
    flex: 1;
    margin-left: 0;
    padding-left: 0;
}

/* 右侧：操作按钮 */
.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* ==========================================================================
   Main Navigation - 左侧导航
   ========================================================================== */

.main-navigation {
    display: flex;
    align-items: center;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 5px;
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 10px 15px;
    color: var(--text-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    white-space: nowrap;
}

.main-navigation a i {
    font-size: 14px;
}

/* 导航图标样式 */
.main-navigation .nav-icon-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
}

/* 仅图标显示 */
.main-navigation .nav-display-icon a {
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-navigation .nav-display-icon a i,
.main-navigation .nav-display-icon a .nav-icon-img {
    font-size: 28px;
    width: 28px;
    height: 28px;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* 图标+文字显示 */
.main-navigation .nav-display-icon_text a {
    display: flex;
    align-items: center;
    gap: 10px;
}

.main-navigation .nav-display-icon_text a i {
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.main-navigation .nav-display-icon_text a .nav-icon-img {
    width: 28px;
    height: 28px;
    display: block;
}

/* 悬停和激活状态 */
.main-navigation a:hover,
.main-navigation .current-menu-item > a,
.main-navigation .active > a {
    background: var(--hover-color);
    color: var(--primary-color);
}

.main-navigation a:hover .nav-icon-img,
.main-navigation .current-menu-item > a .nav-icon-img,
.main-navigation .active > a .nav-icon-img {
    opacity: 0.9;
    transform: scale(1.1);
    transition: all 0.3s ease;
}

.main-navigation .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-background);
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    flex-direction: column;
    z-index: 100;
}

.main-navigation li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ==========================================================================
   Header Actions - 右侧操作按钮
   ========================================================================== */

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 搜索功能的CSS已内联到header.php中 */

.header-actions a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

.header-actions a i {
    font-size: 14px;
}

/* 投稿按钮 */
.btn-submit {
    background: #4a90e2;
    color: #ffffff;
    border: 1px solid #4a90e2;
}

.btn-submit:hover {
    background: #3a7bc8;
    border-color: #3a7bc8;
    color: #ffffff;
}

/* 登录按钮 */
.btn-login {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-login:hover {
    background: #4a90e2;
    border-color: #4a90e2;
    color: #ffffff;
}

/* 注册按钮 */
.btn-register {
    background: #4a90e2;
    color: #ffffff;
    border: 1px solid #4a90e2;
}

.btn-register:hover {
    background: #3a7bc8;
    border-color: #3a7bc8;
    color: #ffffff;
}

/* 退出按钮 */
.btn-logout {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-logout:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
    color: #ffffff;
}

/* 后台按钮 */
.btn-dashboard {
    background: #4a90e2;
    color: #ffffff;
    border: 1px solid #4a90e2;
}

.btn-dashboard:hover {
    background: #3a7bc8;
    border-color: #3a7bc8;
    color: #ffffff;
}

/* ==========================================================================
   Mobile Menu Toggle
   ========================================================================== */

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    color: var(--text-color);
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* ==========================================================================
   Responsive Design - Mobile
   ========================================================================== */

@media (max-width: 1024px) {
    .header-right {
        gap: 15px;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .header-actions a {
        padding: 7px 12px;
        font-size: 13px;
    }
    
    .main-navigation a {
        padding: 8px 12px;
        font-size: 14px;
    }
}

/* 响应式：平板 */
@media (max-width: 1024px) {
    .header-search.active .search-form {
        width: 220px;
    }
}

@media (max-width: 768px) {
    .header-left {
        gap: 15px;
    }
    
    /* 移动端搜索框 */
    .header-search.active .search-form {
        width: 180px;
    }
    
    .header-right {
        justify-content: flex-end;
    }
    
    .main-navigation {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--card-background);
        box-shadow: var(--shadow);
        padding: 20px;
        transform: translateX(-100%);
        transition: var(--transition);
        overflow-y: auto;
        z-index: 999;
    }
    
    .main-navigation.active {
        transform: translateX(0);
    }
    
    .main-navigation ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-navigation a {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
        border-radius: 0;
    }
    
    .main-navigation .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        margin-left: 15px;
        margin-top: 10px;
        background: transparent;
    }
    
    .main-navigation .sub-menu a {
        font-size: 14px;
        padding: 10px 0;
    }
    
    .header-actions {
        flex-direction: column;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--card-background);
        padding: 15px 20px;
        box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
        gap: 10px;
        z-index: 1000;
    }
    
    .menu-open .header-actions {
        display: flex;
    }
    
    body:not(.menu-open) .header-actions {
        display: none;
    }
    
    .header-actions a {
        width: 100%;
        justify-content: center;
        padding: 12px;
        font-size: 15px;
    }
    
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .menu-toggle[aria-expanded="true"] span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .menu-toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle[aria-expanded="true"] span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

@media (max-width: 480px) {
    .header-actions a {
        padding: 10px;
        font-size: 14px;
    }
    
    .header-actions a i {
        font-size: 13px;
    }
}