/* CDK 卡密分发系统 - 主样式文件 */

/* 基础重置和变量 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-color: #dee2e6;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f5f5;
}

/* 导航栏 */
.navbar {
    background: white;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.nav-btn:hover {
    background: var(--primary-color);
    color: white;
}

/* 主内容区域 */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* 页面切换 */
.page {
    display: none;
}

.page.active {
    display: block;
}

/* 首页样式 */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.hero p {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 页面头部 */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.page-header h2 {
    color: var(--dark-color);
    font-size: 2rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #545b62;
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

/* 表单样式 */
.form-container {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

/* 卡密输入区域 */
.cards-input-container {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.input-format-tabs {
    display: flex;
    background: var(--light-color);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 0.75rem;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active {
    background: white;
    color: var(--primary-color);
    font-weight: 500;
}

.cards-input-container textarea {
    border: none;
    border-radius: 0;
    resize: vertical;
}

.input-options {
    padding: 1rem;
    background: var(--light-color);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* 输入工具栏 */
.input-tools {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-tool {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    background: var(--background-color);
    color: var(--text-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-tool:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.cards-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

/* 导入按钮特殊样式 */
.btn-tool:first-child {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-tool:first-child:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.checkbox-inline .checkbox-label {
    margin: 0;
}

.checkbox-inline .form-hint {
    margin: 0;
    color: var(--text-secondary);
}

.checkbox-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: #f8f9fa;
}

.checkbox-row .checkbox-text {
    font-weight: 500;
    color: var(--dark-color);
}

.checkbox-row input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* 项目网格 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.project-status {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-inactive {
    background: #f8d7da;
    color: #721c24;
}

.project-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1rem 0;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.project-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.project-actions .btn {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.875rem;
}

/* 领取页面 */
.claim-container {
    max-width: 500px;
    margin: 2rem auto;
}

.password-form,
.claim-result {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
}

.card-content {
    margin: 2rem 0;
}

.card-display {
    background: var(--light-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    font-family: monospace;
    font-size: 1.1rem;
    word-break: break-all;
    margin: 1rem 0;
    border: 2px dashed var(--border-color);
}

.result-success {
    color: var(--success-color);
}

.result-error {
    color: var(--danger-color);
}

/* 加载和状态 */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--secondary-color);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--light-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--secondary-color);
}

/* Toast 通知 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
}

.toast {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 0.5rem;
    border-left: 4px solid var(--primary-color);
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left-color: var(--success-color);
}

.toast.error {
    border-left-color: var(--danger-color);
}

.toast.warning {
    border-left-color: var(--warning-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 消息提示动画 */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* 表单提示样式 */
.form-hint {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: #666;
    line-height: 1.4;
}

/* 导入卡密列表样式 */
.imported-cards-list {
    margin-top: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #f9f9f9;
    overflow: hidden;
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: #f0f0f0;
    border-bottom: 1px solid #e0e0e0;
}

.list-header h4 {
    margin: 0;
    color: #333;
    font-size: 16px;
}

.cards-container {
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
}

.card-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    margin-bottom: 5px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

.card-content {
    flex: 1;
    word-break: break-all;
    margin-right: 10px;
    color: #333;
}

.card-delete {
    background: #ff4757;
    color: white;
    border: none;
    border-radius: 3px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 12px;
    transition: background-color 0.2s;
}

.card-delete:hover {
    background: #ff3838;
}

.cards-container::-webkit-scrollbar {
    width: 6px;
}

.cards-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.cards-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.cards-container::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Turnstile 样式 */
.turnstile-container {
    margin: 20px 0;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background-color: #f9f9f9;
    display: none;
}

.turnstile-container.show {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

.turnstile-widget {
    margin: 10px 0;
    display: flex;
    justify-content: center;
}

.turnstile-container .form-hint {
    margin-top: 8px;
    font-size: 12px;
    color: #666;
    text-align: center;
}

.turnstile-container label {
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    display: block;
}

/* Turnstile 加载状态 */
.turnstile-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    color: var(--secondary-color);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid #e0e0e0;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 0.875rem;
    color: #666;
}

/* Turnstile 错误状态 */
.turnstile-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    color: var(--error-color);
}

.error-icon {
    font-size: 1.5rem;
}

.error-text {
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    color: #d32f2f;
}

.retry-btn {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color 0.2s;
}

.retry-btn:hover {
    background: var(--primary-hover);
}

/* 旋转动画 */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }

    .main-content {
        padding: 0 1rem;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .form-actions {
        flex-direction: column;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-actions {
        flex-direction: column;
    }

    .turnstile-container {
        margin: 15px 0;
        padding: 12px;
    }
}

/* ==================== Authentication Styles ==================== */

/* Auth Error Message */
.auth-error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 1rem;
    margin: 1rem auto;
    max-width: 1200px;
    border-radius: var(--border-radius);
    border: 1px solid #f5c6cb;
    text-align: center;
}

/* User Info in Navigation */
.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-info-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.user-avatar-placeholder {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.user-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark-color);
}

.user-username {
    font-size: 0.75rem;
    color: var(--secondary-color);
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: 2rem;
}

.login-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 3rem;
    max-width: 500px;
    width: 100%;
    text-align: center;
}

.login-header h2 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}

.login-header p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.login-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.login-icon {
    color: var(--primary-color);
    opacity: 0.8;
}

.login-user-info {
    width: 100%;
}

.login-user-info .btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-footer {
    margin-top: 1rem;
}

.login-hint {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

/* Button Sizes */
.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

/* Responsive for Auth */
@media (max-width: 768px) {
    .user-info-container {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.75rem;
    }

    .user-details {
        align-items: center;
    }

    .login-card {
        padding: 2rem 1.5rem;
    }

    .login-header h2 {
        font-size: 1.5rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ==================== Admin Panel Styles ==================== */

#admin-page {
    padding: 2rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.users-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.users-section h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.users-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.user-card {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    align-items: center;
    background: var(--card-bg);
    box-shadow: var(--shadow);
}

.user-card.banned {
    background: #fff3cd;
    border-color: #ffc107;
}

.user-avatar-admin {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info-admin {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.user-name-admin {
    font-weight: 600;
    color: var(--dark-color);
}

.user-username-admin {
    color: var(--secondary-color);
    font-size: 0.875rem;
}

.user-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.user-status {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.user-status.active {
    background: #d4edda;
    color: #155724;
}

.user-status.banned {
    background: #f8d7da;
    color: #721c24;
}

.user-actions {
    display: flex;
    gap: 0.5rem;
}

.ban-reason {
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: #fff3cd;
    border-left: 3px solid #ffc107;
    font-size: 0.875rem;
    color: #856404;
}

@media (max-width: 768px) {
    .user-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .user-actions {
        justify-content: center;
    }
}

/* ==================== Edit Project Modal Styles ==================== */

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    overflow: auto;
}

.modal-content {
    background-color: var(--card-bg);
    margin: auto;
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.modal-large {
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 28px;
    font-weight: bold;
    color: var(--secondary-color);
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.modal-close:hover,
.modal-close:focus {
    color: var(--dark-color);
}

.edit-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.edit-section h4 {
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-size: 1.1rem;
}

.edit-section h5 {
    margin-bottom: 0.75rem;
    color: var(--dark-color);
    font-size: 1rem;
}

.status-toggle {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

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

.cards-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: var(--border-radius);
}

.cards-stats span {
    color: var(--secondary-color);
}

.cards-stats strong {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.add-cards-section {
    margin-bottom: 1.5rem;
}

.add-cards-section textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: monospace;
    resize: vertical;
    margin-bottom: 0.75rem;
}

.edit-cards-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.card-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

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

.card-item.claimed {
    background: #f8f9fa;
    opacity: 0.7;
}

.card-content {
    flex: 1;
    font-family: monospace;
    color: var(--dark-color);
}

.card-status {
    margin-right: 1rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.card-status.available {
    background: #d4edda;
    color: #155724;
}

.card-status.claimed {
    background: #f8d7da;
    color: #721c24;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
}