/* 认证页面样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-box {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.auth-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-header p {
    font-size: 1rem;
    opacity: 0.9;
}

.auth-form {
    padding: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.8rem;
    color: #999;
}

.email-preview {
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: #f5f7fa;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #666;
}

.email-preview span {
    font-weight: 600;
    color: #667eea;
}

.form-error {
    display: none;
    padding: 0.75rem 1rem;
    background: #fee;
    border: 1px solid #fcc;
    border-radius: 8px;
    color: #c33;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.btn-primary {
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-footer {
    padding: 1.5rem 2rem;
    background: #f5f7fa;
    text-align: center;
    font-size: 0.9rem;
    color: #666;
}

.auth-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

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

/* 响应式 */
@media (max-width: 500px) {
    .auth-container {
        padding: 1rem;
    }

    .auth-header {
        padding: 2rem 1.5rem;
    }

    .auth-form {
        padding: 1.5rem;
    }
}