/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4A90D9;
    --primary-hover: #3A7BC8;
    --danger-color: #E74C3C;
    --danger-hover: #C0392B;
    --success-color: #27AE60;
    --warning-color: #F39C12;
    --bg-color: #1A1A2E;
    --card-bg: #16213E;
    --card-border: #0F3460;
    --text-primary: #EAEAEA;
    --text-secondary: #A0A0A0;
    --text-muted: #6B6B6B;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-color) 0%, #0F0F1E 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部 */
header {
    text-align: center;
    padding: 20px 0 30px;
}

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

.logo svg {
    filter: drop-shadow(0 2px 4px rgba(74, 144, 217, 0.3));
}

.logo h1 {
    font-size: 24px;
    font-weight: 600;
    background: linear-gradient(90deg, var(--primary-color), #6BB3F0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 主内容区 */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 用户信息区 */
.user-section {
    padding: 0 10px;
}

.user-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
}

.avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(74, 144, 217, 0.3);
}

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

.user-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 主机状态区 */
.host-section {
    padding: 0 10px;
}

.host-card {
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
}

.host-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.host-icon {
    color: var(--primary-color);
}

.host-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.host-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.host-status .status-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.host-status.online .status-text {
    color: var(--success-color);
}

.host-status.offline .status-text {
    color: var(--warning-color);
}

.host-name-display {
    margin-top: 8px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.host-name-display .online-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 10px;
    padding: 4px 10px;
    background: rgba(39, 174, 96, 0.15);
    border: 1px solid rgba(39, 174, 96, 0.3);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--success-color);
}

.host-name-display .online-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 在线用户区 */
.guests-section {
    padding: 0 10px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.section-title {
    font-size: 14px;
    color: var(--text-secondary);
}

.guest-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: var(--primary-color);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.guest-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.no-guests {
    padding: 30px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    background: var(--card-bg);
    border: 1px dashed var(--card-border);
    border-radius: 12px;
}

.guest-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    transition: all 0.2s ease;
}

.guest-item:hover {
    border-color: var(--primary-color);
}

.guest-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--card-border);
}

.guest-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.guest-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.guest-permissions {
    display: flex;
    gap: 8px;
    font-size: 11px;
    color: var(--text-muted);
}

.guest-permissions span {
    display: flex;
    align-items: center;
    gap: 3px;
}

.kick-btn {
    opacity: 0;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--danger-color);
    border-radius: 6px;
    color: var(--danger-color);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.guest-item:hover .kick-btn {
    opacity: 1;
}

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

/* 操作区 */
.action-section {
    padding: 20px 10px;
}

.primary-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3);
}

.primary-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4);
}

.primary-btn:active:not(:disabled) {
    transform: translateY(0);
}

.primary-btn:disabled {
    background: var(--card-border);
    cursor: not-allowed;
    box-shadow: none;
}

.secondary-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.secondary-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.danger-btn {
    padding: 12px 24px;
    background: var(--danger-color);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

/* 消息提示 */
.error-message {
    margin: 0 10px;
    padding: 12px 16px;
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.3);
    border-radius: 8px;
    color: var(--danger-color);
    font-size: 14px;
}

.status-message {
    margin: 0 10px;
    padding: 12px 16px;
    background: rgba(74, 144, 217, 0.1);
    border: 1px solid rgba(74, 144, 217, 0.3);
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-message.warning {
    background: rgba(243, 156, 18, 0.1);
    border-color: rgba(243, 156, 18, 0.3);
    color: var(--warning-color);
}

/* 弹窗 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 400px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    animation: modalIn 0.3s ease;
}

.modal-small {
    max-width: 320px;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--card-border);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-body p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    padding: 12px;
    background: rgba(74, 144, 217, 0.1);
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 13px;
}

.modal-footer {
    display: flex;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--card-border);
}

.modal-footer .primary-btn,
.modal-footer .danger-btn,
.modal-footer .secondary-btn {
    flex: 1;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 12px;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-muted);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 响应式 */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    .logo h1 {
        font-size: 20px;
    }

    .avatar {
        width: 48px;
        height: 48px;
    }

    .user-name {
        font-size: 16px;
    }

    .host-name-display {
        font-size: 18px;
    }
}