/* common.css - 通用样式 */
:root {
    --primary-color: #667eea;
    --primary-hover: #764ba2;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #333;
    --border-color: #e5e5e5;
    --input-bg: #ffffff;
}

.theme-dark {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --border-color: #333;
    --input-bg: #2d2d2d;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-image: url(https://file.dlck.cn/picture/dlck/img/IMG_20230704_114756_compressed.jpg);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    min-height: 600px;
}

@media (max-width: 992px) {
    .auth-container {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
}

/* 左边部分 - 品牌展示 */
.auth-brand {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: white;
    text-align: center;
}

.brand-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 30px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.brand-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.brand-subtitle {
    font-size: 16px;
    opacity: 0.9;
    line-height: 1.6;
    margin-bottom: 30px;
}

.brand-features {
    text-align: left;
    max-width: 300px;
    margin: 0 auto;
}

.brand-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 右边部分 - 表单区域 */
.auth-form {
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-color);
}

.form-subtitle {
    color: #666;
    font-size: 15px;
}

.theme-dark .form-subtitle {
    color: #999;
}

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

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

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
    background: var(--input-bg);
    color: var(--text-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

/* 验证码输入组 */
.code-input-group {
    display: flex;
    gap: 10px;
}

.code-input-group .form-control {
    flex: 1;
}

.code-btn {
    padding: 0 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    white-space: nowrap;
    transition: all 0.3s;
}

.code-btn:hover:not(:disabled) {
    background: var(--primary-hover);
}

.code-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* 按钮样式 */
.btn {
    padding: 10px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--primary-color-rgb), 0.2);
}

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

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

/* 第三方登录 */
.oauth-section {
    margin: 30px 0;
    text-align: center;
}

.oauth-divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: #666;
}

.oauth-divider::before,
.oauth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.oauth-divider span {
    padding: 0 15px;
    font-size: 14px;
}

.oauth-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.oauth-btn {
    flex: 1;
    max-width: 200px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.oauth-btn:hover {
    border-color: var(--primary-color);
    background: rgba(var(--primary-color-rgb), 0.05);
}

.oauth-btn i {
    font-size: 20px;
}

.oauth-btn.qq i { color: #12b7f5; }
.oauth-btn.github i { color: #333; }
.oauth-btn.wechat i { color: #09bb07; }

.theme-dark .oauth-btn.github i { color: #fff; }

/* 链接区域 */
.auth-links {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 5px;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* 消息提示 */
.message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: none;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

.message.warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
    display: block;
}

/* 切换按钮 */
.toggle-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.toggle-btn {
    flex: 1;
    padding: 12px;
    background: rgba(0,0,0,0.05);
    border: none;
    border-radius: 10px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-color);
}

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

.theme-dark .toggle-btn {
    background: rgba(255,255,255,0.05);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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