/* VPN Panel 样式 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* 登录页面 */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-box {
    background: white;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-box h1 {
    text-align: center;
    color: #667eea;
    margin-bottom: 10px;
}

.login-box .subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    border: none;
    background: #f0f0f0;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.tab-btn.active {
    background: #667eea;
    color: white;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* 导航栏 */
.navbar {
    background: white;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-brand {
    font-size: 20px;
    font-weight: 700;
    color: #667eea;
}

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

.nav-links a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #667eea;
}

/* 卡片 */
.card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.card h3 {
    margin-bottom: 16px;
    color: #333;
}

.card h2 {
    color: white;
    margin-bottom: 20px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item label {
    font-size: 12px;
    color: #888;
    text-transform: uppercase;
}

.info-item span {
    font-size: 16px;
    font-weight: 500;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge.active {
    background: #d4edda;
    color: #155724;
}

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

/* 流量条 */
.traffic-bar {
    height: 24px;
    background: #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 12px;
}

.traffic-progress {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    transition: width 0.3s;
}

.traffic-info {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: #666;
}

/* 订阅地址 */
.sub-link-box,
.api-key-box {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.sub-link-box input,
.api-key-box input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 13px;
    background: #f8f9fa;
}

.import-hint {
    margin-top: 20px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 14px;
}

.import-hint ol {
    margin-top: 10px;
    padding-left: 20px;
}

.import-hint li {
    margin-bottom: 5px;
}

.text-muted {
    color: #888;
    font-size: 14px;
}

/* 表格 */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #555;
}

tr:hover {
    background: #f8f9fa;
}

.action-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    margin-right: 5px;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-info {
    background: #17a2b8;
    color: white;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stat-card .number {
    font-size: 32px;
    font-weight: 700;
    color: #667eea;
}

.stat-card .label {
    color: #888;
    margin-top: 5px;
}

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

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    padding: 24px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #888;
}

/* 表单 */
.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}