/**
 * 卡密提取系统 - 粉色系主题
 */

:root {
    --primary: #ff6b9d;
    --primary-light: #ff8fb3;
    --primary-dark: #e85a8a;
    --secondary: #ffd1dc;
    --accent: #ffb6c1;
    --bg-gradient: linear-gradient(135deg, #fff5f7 0%, #ffe4ec 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-primary: #4a4a4a;
    --text-secondary: #888;
    --border-color: #ffd1dc;
    --success: #5cb85c;
    --error: #ff6b6b;
    --shadow: 0 4px 20px rgba(255, 107, 157, 0.15);
    --shadow-hover: 0 8px 30px rgba(255, 107, 157, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

/* 容器 */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部 */
.header {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary);
    font-size: 1.4rem;
    font-weight: 600;
}

.logo-icon {
    font-size: 1.8rem;
}

.nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s;
}

.nav a:hover {
    background: var(--secondary);
    color: var(--primary-dark);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.user-name {
    font-weight: 500;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 157, 0.5);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary-light);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 20px 25px;
}

.card-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.card-body {
    padding: 25px;
}

/* 主页横幅 */
.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

/* 分类选择 */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.category-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.category-card.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, #fff5f7 0%, #ffe4ec 100%);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.category-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.category-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 提取区域 */
.draw-section {
    text-align: center;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.draw-btn {
    font-size: 1.3rem;
    padding: 20px 60px;
    border-radius: 50px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(255, 107, 157, 0.6); }
}

.draw-info {
    margin-top: 20px;
    color: var(--text-secondary);
}

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

/* 卡密展示 */
.card-result {
    background: linear-gradient(135deg, #fff5f7 0%, #ffe4ec 100%);
    border: 2px dashed var(--primary-light);
    border-radius: 15px;
    padding: 25px;
    margin: 20px 0;
}

.card-code {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    background: white;
    padding: 15px 20px;
    border-radius: 10px;
    word-break: break-all;
    margin: 10px 0;
    border: 1px solid var(--border-color);
}

.card-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 10px;
}

.copy-btn {
    margin-top: 10px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.2);
}

/* 表格 */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background: var(--secondary);
    color: var(--primary-dark);
    font-weight: 600;
}

table tr:hover {
    background: #fff5f7;
}

/* 消息提示 */
.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #fff5f7;
    color: var(--primary-dark);
    border: 1px solid var(--border-color);
}

/* 公告 */
.notice {
    background: linear-gradient(135deg, #fff5f7 0%, #ffe4ec 100%);
    border-left: 4px solid var(--primary);
    padding: 15px 20px;
    border-radius: 0 10px 10px 0;
    margin-bottom: 20px;
}

.notice-title {
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 5px;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 30px;
    color: var(--text-secondary);
    margin-top: 40px;
}

/* 登录页 */
.login-container {
    max-width: 400px;
    margin: 80px auto;
}

.login-card {
    text-align: center;
}

.login-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.login-title {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.login-desc {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    padding: 8px 15px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    background: white;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.pagination a:hover {
    background: var(--secondary);
    border-color: var(--primary-light);
}

.pagination .active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* 标签 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

/* 响应式 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .draw-btn {
        padding: 15px 40px;
        font-size: 1.1rem;
    }
    
    table th,
    table td {
        padding: 10px;
        font-size: 0.9rem;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: all 0.3s;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: 20px;
}