/* 
江嵘智通信息科技有限公司官网
用户管理面板样式文件
*/

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: white;
    min-height: 100vh;
}

/* 导航栏 */
.dashboard-nav {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.brand-logo {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #2dc653, #1974d2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(45, 198, 83, 0.3);
}

.brand-logo i {
    font-size: 20px;
    color: white;
}

.brand-text h2 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: white;
}

.brand-text span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
}

.nav-link:hover {
    color: #2dc653;
    background: rgba(45, 198, 83, 0.1);
}

/* 用户菜单 */
.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2dc653, #1974d2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
    color: white;
}

.user-role {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.user-menu {
    position: relative;
}

.user-menu-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.user-menu-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 8px 0;
    min-width: 180px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.user-dropdown a:hover {
    background: rgba(45, 198, 83, 0.1);
    color: #2dc653;
}

.dropdown-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 8px 0;
}

/* 主要内容 */
.dashboard-main {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: calc(100vh - 70px);
}

/* 侧边栏 */
.dashboard-sidebar {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 0;
}

.sidebar-menu {
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    height: calc(100% - 20px);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    margin: 5px 0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.9);
}

.menu-item.active {
    background: linear-gradient(135deg, rgba(45, 198, 83, 0.2), rgba(25, 116, 210, 0.2));
    color: #2dc653;
    box-shadow: 0 4px 15px rgba(45, 198, 83, 0.1);
}

.menu-item i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

/* 侧边栏分隔线 */
.sidebar-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: 15px 10px;
}

/* 退出登录按钮 */
.menu-item.logout-item {
    margin-top: auto;
    color: rgba(255, 100, 100, 0.8);
}

.menu-item.logout-item:hover {
    background: rgba(255, 100, 100, 0.1);
    color: #ff6464;
}

/* 管理后台入口 */
.menu-item.admin-menu-item {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.15));
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: #a78bfa;
}

.menu-item.admin-menu-item:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(59, 130, 246, 0.25));
    color: #c4b5fd;
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
}

.menu-item.admin-menu-item i {
    color: #a78bfa;
}

/* 内容区域 */
.dashboard-content {
    padding: 30px;
    overflow-y: auto;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    margin-bottom: 30px;
}

.section-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px 0;
    background: linear-gradient(135deg, #2dc653, #1974d2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 16px;
    margin: 0;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(45, 198, 83, 0.3);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2dc653, #1974d2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    box-shadow: 0 4px 15px rgba(45, 198, 83, 0.3);
}

.stat-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 5px 0;
    color: white;
}

.stat-content p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    font-size: 14px;
}

/* 快速操作 */
.quick-actions {
    margin-bottom: 40px;
}

.quick-actions h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 20px 0;
    color: white;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.action-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(45, 198, 83, 0.3);
}

.action-card i {
    font-size: 32px;
    color: #2dc653;
    margin-bottom: 15px;
}

.action-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: white;
}

.action-card p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin: 0;
}

/* 个人资料 */
.profile-container {
    max-width: 800px;
}

.profile-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
}

.profile-avatar {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.avatar-circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #2dc653, #1974d2);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: white;
    box-shadow: 0 10px 30px rgba(45, 198, 83, 0.3);
    position: relative;
}

.avatar-upload {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40px;
    height: 40px;
    background: #2dc653;
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(45, 198, 83, 0.3);
    transition: all 0.3s ease;
}

.avatar-upload:hover {
    transform: scale(1.1);
}

/* 表单样式 */
.profile-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    color: white;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #2dc653;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px rgba(45, 198, 83, 0.1);
}

.form-group input:read-only {
    background: rgba(255, 255, 255, 0.03);
    color: rgba(255, 255, 255, 0.6);
    cursor: not-allowed;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, #2dc653, #1974d2);
    color: white;
    box-shadow: 0 4px 15px rgba(45, 198, 83, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(45, 198, 83, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #2dc653;
    border: 1px solid #2dc653;
}

.btn-outline:hover {
    background: #2dc653;
    color: white;
    transform: translateY(-2px);
}

/* 活动记录 */
.activity-container {
    max-width: 800px;
}

.activity-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, #2dc653, #1974d2);
    border-color: #2dc653;
    color: white;
}

.activity-list {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 20px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
}

.activity-icon.login {
    background: linear-gradient(135deg, #2dc653, #1974d2);
}

.activity-icon.profile {
    background: linear-gradient(135deg, #ffa502, #ff6348);
}

.activity-icon.security {
    background: linear-gradient(135deg, #ff4757, #c44569);
}

.activity-content {
    flex: 1;
}

.activity-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 5px 0;
    color: white;
}

.activity-content p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin: 0;
}

.activity-time {
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
}

/* 设置页面 */
.settings-container {
    max-width: 800px;
}

.settings-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
    color: white;
}

.card-header i {
    font-size: 24px;
    color: #2dc653;
}

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.settings-item:last-child {
    border-bottom: none;
}

.setting-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 5px 0;
    color: white;
}

.setting-info p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin: 0;
}

/* 切换开关 */
.toggle-switch {
    position: relative;
    width: 50px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    transition: 0.3s;
}

.toggle-switch label:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-switch input:checked + label {
    background: linear-gradient(135deg, #2dc653, #1974d2);
}

.toggle-switch input:checked + label:before {
    transform: translateX(26px);
}

/* 帮助支持 */
.help-container {
    max-width: 900px;
}

.help-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.help-category {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.help-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.category-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2dc653, #1974d2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    margin: 0 auto 20px auto;
    box-shadow: 0 4px 15px rgba(45, 198, 83, 0.3);
}

.help-category h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 10px 0;
    color: white;
}

.help-category p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin: 0 0 20px 0;
    line-height: 1.5;
}

.contact-info {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px;
}

.contact-info h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 25px 0;
    color: white;
    text-align: center;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.contact-item i {
    font-size: 20px;
    color: #2dc653;
    width: 24px;
    text-align: center;
}

.contact-item strong {
    display: block;
    color: white;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    margin: 0;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: white;
}

.modal-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.modal-close:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.modal-body {
    padding: 25px;
}

/* 密码输入框包装器 */
.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    width: 100%;
    padding: 12px 45px 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    transition: all 0.3s ease;
}

.password-input-wrapper input:focus {
    outline: none;
    border-color: #2dc653;
    background: rgba(255, 255, 255, 0.08);
}

.password-input-wrapper input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.toggle-pwd-btn {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-pwd-btn:hover {
    color: #2dc653;
    background: rgba(45, 198, 83, 0.1);
}

.toggle-pwd-btn i {
    font-size: 14px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 消息提示 */
.message-toast {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 10001;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    padding: 16px 20px;
    border-left: 4px solid #2dc653;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: translateX(400px);
    transition: all 0.3s ease;
    max-width: 350px;
}

.message-toast.show {
    transform: translateX(0);
}

.message-toast.success {
    border-left-color: #2dc653;
}

.message-toast.error {
    border-left-color: #ff4757;
}

.message-toast.warning {
    border-left-color: #ffa502;
}

.message-toast.info {
    border-left-color: #1974d2;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-icon {
    font-size: 18px;
}

.message-toast.success .toast-icon:before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #2dc653;
}

.message-toast.error .toast-icon:before {
    content: "\f00d";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #ff4757;
}

.message-toast.warning .toast-icon:before {
    content: "\f071";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #ffa502;
}

.message-toast.info .toast-icon:before {
    content: "\f05a";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #1974d2;
}

.toast-message {
    color: white;
    font-size: 14px;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .dashboard-container {
        grid-template-columns: 250px 1fr;
    }
}

@media (max-width: 968px) {
    .dashboard-container {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        display: none;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .user-info {
        display: none;
    }
    
    .dashboard-content {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .actions-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

@media (max-width: 640px) {
    .nav-container {
        padding: 0 10px;
    }
    
    .brand-text {
        display: none;
    }
    
    .nav-menu {
        gap: 15px;
    }
    
    .dashboard-content {
        padding: 15px;
    }
    
    .section-header h1 {
        font-size: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .help-categories {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 20px;
        width: calc(100% - 40px);
    }
    
    .message-toast {
        right: 10px;
        left: 10px;
        max-width: none;
        transform: translateY(-100px);
    }
    
    .message-toast.show {
        transform: translateY(0);
    }
}