/**
 * 汉堡菜单样式
 * 用于移动端导航
 */

/* ===== 汉堡菜单按钮 ===== */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background: var(--text);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 汉堡菜单按钮激活状态 */
.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* ===== 移动端导航菜单 ===== */
.mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--card-bg);
    padding: 20px;
    box-shadow: var(--shadow-md);
    z-index: 999;
    flex-direction: column;
    gap: 12px;
    animation: slideDown 0.3s ease-out;
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav a {
    padding: 12px 16px;
    color: var(--text);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s;
    font-weight: 500;
}

.mobile-nav a:hover {
    background: var(--gray-100);
    color: var(--coral);
}

/* ===== 动画 ===== */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .navbar .nav {
        display: none;
    }
}

/* ===== 深色主题 ===== */
[data-theme="dark"] .menu-toggle span {
    background: var(--text);
}

[data-theme="dark"] .mobile-nav {
    background: var(--gray-900);
}

[data-theme="dark"] .mobile-nav a:hover {
    background: var(--gray-800);
}

/* ===== 关闭按钮（可选）===== */
.mobile-nav__close {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    padding: 4px 8px;
}

.mobile-nav__close:hover {
    color: var(--text);
}

/* ===== 用户信息（移动端菜单中）===== */
.mobile-nav__user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}

.mobile-nav__user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--coral);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.mobile-nav__user-name {
    font-weight: 600;
    color: var(--text);
}